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详细IDEA整合Maven+SSM框架附带源码

2020-01-11 15:51 92 查看
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<h2><a name="t0"></a><a id="_0"></a>前言:</h2>
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[/code]

网上很多整合SSM博客文章并不能让初探ssm的同学思路完全的清晰,可以试着关掉整合教程,摇两下头骨,哈一大口气,就在万事具备的时候,开整,这个时候你可能思路全无 中招了咩 ,还有一些同学依旧在使用eclipse或者Myeclipse开发,我想对这些朋友说IDEA 的编译速度很快,人生苦短,来不及解释了,直接上手idea吧。这篇文章每一步搭建过程都测试过了,应该不会有什么差错。本文章还有个比较优秀的特点,就是idea的使用,基本上关于idea的操作都算是比较详细的,所以不用太担心不会撸idea!最后,本文章旨在清晰地整合各个框架之间的流程与思路。

相信有很多小伙伴都是学了SSM框架,而且学的时候应该是用eclipse或者Myeclipse开发的,随着idea崛起,实力碾压eclipse,IDEA 的编译速度很快,通常比ec快2倍!外加丧心病狂的代码提示引起程序员的尖叫!当然,我不是说eclipse不好,只是idea更加便捷,更加便于开发,这是事实。我相信很多小伙伴都是从eclipse转向idea(包括我,普遍一开始上手不习惯idea,时刻保持一颗畏惧敬畏的心,生怕敲不出一行靓丽的Hello Word(你们都是大神,记得当时的我一直syso,敲不出一行输出语句QAQ),作为过来人,我告诉大家,这些都是没必要的担心,你只要记住,具(工具idea)在我手中,码(代码)就在我手中,管他三七四十九呢,拿起idea就是一顿撸码,我就是酱紫的,所以呢才有了这篇idea版的SSM框架整合,不然你以为怎么来的?

文章目录

  • 2、Spring框架代码的编写
  • 3、SpringMVC框架代码的编写
  • 4. Spring整合SpringMVC的框架
  • 5、MyBatis框架代码的编写
  • 6. Spring整合MyBatis框架
  • 7.spring整合mybatis框架配置事务(Spring的声明式事务管理)
  • 8、源码、源码、源码~重要的标题发三遍
  • 1. 搭建整合环境

    1. 整合说明

    整合说明:SSM整合可以使用多种方式,咱们选择XML + 注解的方式,不要觉得不妥,这样其实最便捷-

    2. 整合的思路:

    1、先搭建整合的环境

     

    2、先把Spring的配置搭建完成

     

    3、再使用Spring整合SpringMVC框架

     

    4、之后使用Spring整合MyBatis框架

     

    5、最后spring整合mybatis框架配置事务(Spring的声明式事务管理)

    3. 创建数据库和表结构语句:

    复制在MySQL中运行即可:

    create database ssm;
    use ssm;
    create table account (
    id int primary key auto_increment,
    name varchar(50),
    money double
    );

    4. 创建maven的工程

    具体的使用idea创建maven,请看这篇使用IntelliJ IDEA创建第一个Mawen项目

    1. 创建Twossm_parent父工程(打包方式选择pom,必须的)
    2. 创建Twossm_web子模块(打包方式是war包)
    3. 创建Twossm_service子模块(打包方式是jar包)
    4. 创建Twossm_dao子模块(打包方式是jar包)
    5. 创建Twossm_domain子模块(打包方式是jar包)
    6. web依赖于service,service依赖于dao,dao依赖于domain
    7. 在Twossm_parent的pom.xml文件中引入坐标依赖
      找到对应的< properties >标签,以及< dependencies >标签,复制粘贴即可
      版本控制是在< properties >标签中控制,从坐标依赖中可以看出版本号:spring5X、MySQL3.1.6、mybatis3.4.5
    <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <spring.version>5.0.2.RELEASE</spring.version>
    <slf4j.version>1.6.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <mysql.version>5.1.6</mysql.version>
    <mybatis.version>3.4.5</mybatis.version>
    </properties>
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    [/code]

    <dependencies>
    <dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.6.8</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aop</artifactId>
    <version>KaTeX parse error: Expected 'EOF', got '&' at position 41: …ed 'EOF', got '&̲' at position 1…{spring.version}</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>KaTeX parse error: Expected 'EOF', got '&' at position 41: …ed 'EOF', got '&̲' at position 1…{spring.version}</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
    <version>KaTeX parse error: Expected 'EOF', got '&' at position 41: …ed 'EOF', got '&̲' at position 1…{spring.version}</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>KaTeX parse error: Expected 'EOF', got '&' at position 41: …ed 'EOF', got '&̲' at position 1…{mysql.version}</version>
    </dependency>
    <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <version>2.5</version>
    <scope>provided</scope>
    </dependency>
    <dependency>
    <groupId>javax.servlet.jsp</groupId>
    <artifactId>jsp-api</artifactId>
    <version>2.0</version>
    <scope>provided</scope>
    </dependency>
    <dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
    </dependency> <!– log start –>
    <dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>KaTeX parse error: Expected 'EOF', got '&' at position 41: …ed 'EOF', got '&̲' at position 1…{slf4j.version}</version>
    </dependency>
    <dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>KaTeX parse error: Expected 'EOF', got '&' at position 41: …ed 'EOF', got '&̲' at position 1…{mybatis.version}</version>
    </dependency>
    <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.0</version>
    </dependency>
    <dependency>
    <groupId>c3p0</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.1.2</version>
    <type>jar</type>
    <scope>compile</scope>
    </dependency>
    </dependencies>

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    1. 部署Twossm_web的项目,只要把Twossm_web项目加入到tomcat服务器中即可

    5. 编写实体类,在Twossm_domain项目中编写

    在这里,我提醒一下,可能各位不熟悉idea快捷键,就比如说getset方法搞不出来哈哈,就这篇整合SSM的文章所用到的idea快捷键可以参考下面蓝色字体文章(点击蓝色字体即可),熟悉idea的哥们可以当我没说,当我在放pi(快快快捂住鼻子…)
    IDEA快速实现接口、查找接口的实现、getSet方法快速生成等等常用快捷键

    package com.gx.domain;
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    [/code]

    import java.io.Serializable;

    public class Account implements Serializable {
    private Integer id;
    private String name;
    private Double money;

    <span class="token keyword">public</span> Integer <span class="token function">getId</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> id<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class=“token keyword”>public</span> <span class=“token keyword”>void</span> <span class=“token function”>setId</span><span class=“token punctuation”>(</span>Integer id<span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    <span class=“token keyword”>this</span><span class=“token punctuation”>.</span>id <span class=“token operator”>=</span> id<span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

    <span class=“token keyword”>public</span> String <span class=“token function”>getName</span><span class=“token punctuation”>(</span><span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    <span class=“token keyword”>return</span> name<span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

    <span class=“token keyword”>public</span> <span class=“token keyword”>void</span> <span class=“token function”>setName</span><span class=“token punctuation”>(</span>String name<span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    <span class=“token keyword”>this</span><span class=“token punctuation”>.</span>name <span class=“token operator”>=</span> name<span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

    <span class=“token keyword”>public</span> Double <span class=“token function”>getMoney</span><span class=“token punctuation”>(</span><span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    <span class=“token keyword”>return</span> money<span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

    <span class=“token keyword”>public</span> <span class=“token keyword”>void</span> <span class=“token function”>setMoney</span><span class=“token punctuation”>(</span>Double money<span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    <span class=“token keyword”>this</span><span class=“token punctuation”>.</span>money <span class=“token operator”>=</span> money<span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

    @Override
    <span class=“token keyword”>public</span> String <span class=“token function”>toString</span><span class=“token punctuation”>(</span><span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    <span class=“token keyword”>return</span> <span class=“token string”>“Account{”</span> <span class=“token operator”>+</span>
    <span class=“token string”>“id=”</span> <span class=“token operator”>+</span> id <span class=“token operator”>+</span>
    <span class=“token string”>", name=’"</span> <span class=“token operator”>+</span> name <span class=“token operator”>+</span> <span class=“token string”>’’’</span> <span class=“token operator”>+</span>
    <span class=“token string”>", money="</span> <span class=“token operator”>+</span> money <span class=“token operator”>+</span>
    <span class=“token string”>’}’</span><span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

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    }

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    6. 编写dao接口

    在dao包中编写dao接口IAccountdao

    package com.gx.dao;
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    [/code]

    import com.gx.domain.Account;
    import org.apache.ibatis.annotations.Insert;
    import org.apache.ibatis.annotations.Select;
    import org.springframework.stereotype.Repository;

    import java.util.List;

    public interface IAccountdao {

    <span class="token keyword">public</span> List<span class="token operator">&lt;</span>Account<span class="token operator">&gt;</span> <span class="token function">findAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

    <span class=“token keyword”>public</span> <span class=“token keyword”>void</span> <span class=“token function”>saveAccount</span><span class=“token punctuation”>(</span>Account account<span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>

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    }

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    7. 编写service接口和实现类

    service接口:

    package com.gx.service;
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    [/code]

    import com.gx.domain.Account;

    import java.util.List;

    public interface AccountService {
    // 查询所有账户
    public List<Account> findAll();

    <span class="token comment">// 保存帐户信息</span>
    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">saveAccount</span><span class="token punctuation">(</span>Account account<span class="token punctuation">)</span><span class="token punctuation">;</span>
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    [/code]

    }

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    service接口实现类:

    package com.gx.service.Impl;
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    [/code]

    import com.gx.domain.Account;
    import com.gx.service.AccountService;
    import org.springframework.stereotype.Service;

    import java.util.List;
    @Service(“accountService”)
    public class AccountServiceImpl implements AccountService {

    <span class="token annotation punctuation">@Override</span>
    <span class="token keyword">public</span> List<span class="token generics function"><span class="token punctuation">&lt;</span>Account<span class="token punctuation">&gt;</span></span> <span class="token function">findAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"Service业务层:查询所有账户..."</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">return</span> null<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class=“token annotation punctuation”>@Override</span>
    <span class=“token keyword”>public</span> <span class=“token keyword”>void</span> <span class=“token function”>saveAccount</span><span class=“token punctuation”>(</span>Account account<span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    System<span class=“token punctuation”>.</span>out<span class=“token punctuation”>.</span><span class=“token function”>println</span><span class=“token punctuation”>(</span><span class=“token string”>“Service业务层:保存帐户…”</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

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    }

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    到这里,整合环境就搭建好了效果如下,接下来搭建Spring的配置!

    2、Spring框架代码的编写

    搭建和测试Spring的开发环境

    1、创建resources的资源文件目录管理XML配置文件

    创建一个叫resources的资源文件目录,用来管理放置XML配置文件


    2、编写applicationContext.xml的配置文件

    在resources资源文件中创建applicationContext.xml的配置文件,编写具体的配置信息


    applicationContext.xml中的配置信息

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd">
    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>开启注解的扫描,希望处理service和dao,controller不需要Spring框架去处理<span class="token operator">--</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>context<span class="token operator">:</span>component<span class="token operator">-</span>scan base<span class="token operator">-</span><span class="token keyword">package</span><span class="token operator">=</span><span class="token string">"com.gx"</span> <span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>配置哪些注解不扫描<span class="token operator">--</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>context<span class="token operator">:</span>exclude<span class="token operator">-</span>filter type<span class="token operator">=</span><span class="token string">"annotation"</span> expression<span class="token operator">=</span><span class="token string">"org.springframework.stereotype.Controller"</span> <span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>context<span class="token operator">:</span>component<span class="token operator">-</span>scan<span class="token operator">&gt;</span>
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    [/code]

    </beans>

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    3. 在项目中编写测试方法,进行测试

    1、创建Test包


    2、在test包中创建一个叫TestSpring的class类,具体的内容如下:

    package com.gx.test;
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    import com.gx.domain.Account;
    import com.gx.service.AccountService;
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;

    public class TestSpring {
    @Test
    public void run1(){
    ApplicationContext ac = new ClassPathXmlApplicationContext(“classpath:applicationContext.xml”);
    AccountService as = (AccountService) ac.getBean(“accountService”);
    as.findAll();
    }
    }

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    运行如下效果,说明搭建Spring的开发环境成功!

    到这里,Spring的开发环境成功!接下来搭建SpringMVC框架环境。

    3、SpringMVC框架代码的编写

    搭建和测试SpringMVC的开发环境

    1. 在web.xml中配置DispatcherServlet前端控制器

    <!--配置前端控制器-->
    <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--加载springmvc.xml配置文件-->
    <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!--启动服务器,创建该servlet-->
    <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
    </servlet-mapping>
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    [/code]

    2. 在web.xml中配置DispatcherServlet过滤器解决中文乱码

    <!--解决中文乱码的过滤器-->
    <filter>
    <filter-name>characterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF-8</param-value>
    </init-param>
    </filter>
    <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>
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    [/code]

    3. web.xml中配置的整体效果

    <!DOCTYPE web-app PUBLIC
    "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd" >
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    <web-app xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
    xmlns=“http://java.sun.com/xml/ns/javaee”
    xsi:schemaLocation=“http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd”
    version=“3.0”>
    <display-name>Archetype Created Web Application</display-name>

    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>配置前端控制器<span class="token operator">--</span><span class="token operator">&gt;</span>
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    <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!–加载springmvc.xml配置文件–>
    <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!–启动服务器,创建该servlet–>
    <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
    </servlet-mapping>

    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>解决中文乱码的过滤器<span class="token operator">--</span><span class="token operator">&gt;</span>
    <span class="token generics function"><span class="token punctuation">&lt;</span>filter<span class="token punctuation">&gt;</span></span>
    <span class="token operator">&lt;</span>filter<span class="token operator">-</span>name<span class="token operator">&gt;</span>characterEncodingFilter<span class="token operator">&lt;</span><span class="token operator">/</span>filter<span class="token operator">-</span>name<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>filter<span class="token operator">-</span><span class="token keyword">class</span><span class="token operator">&gt;</span>org<span class="token punctuation">.</span>springframework<span class="token punctuation">.</span>web<span class="token punctuation">.</span>filter<span class="token punctuation">.</span>CharacterEncodingFilter<span class="token operator">&lt;</span><span class="token operator">/</span>filter<span class="token operator">-</span><span class="token keyword">class</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>init<span class="token operator">-</span>param<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>param<span class="token operator">-</span>name<span class="token operator">&gt;</span>encoding<span class="token operator">&lt;</span><span class="token operator">/</span>param<span class="token operator">-</span>name<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>param<span class="token operator">-</span>value<span class="token operator">&gt;</span>UTF<span class="token operator">-</span><span class="token number">8</span><span class="token operator">&lt;</span><span class="token operator">/</span>param<span class="token operator">-</span>value<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>init<span class="token operator">-</span>param<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>filter<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>filter<span class="token operator">-</span>mapping<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>filter<span class="token operator">-</span>name<span class="token operator">&gt;</span>characterEncodingFilter<span class="token operator">&lt;</span><span class="token operator">/</span>filter<span class="token operator">-</span>name<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>url<span class="token operator">-</span>pattern<span class="token operator">&gt;</span><span class="token comment">/*&lt;/url-pattern&gt;
    &lt;/filter-mapping&gt;
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    [/code]

    </web-app>

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    4. 创建springmvc.xml的配置文件,编写配置文件

    同样是在resources资源文件夹中创建springmvc.xml配置文件


    springmvc.xml的配置文件内容:

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd">
    <!--开启注解扫描,只扫描Controller注解-->
    <context:component-scan base-package="com.gx">
    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>配置的视图解析器对象<span class="token operator">--</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>bean id<span class="token operator">=</span><span class="token string">"internalResourceViewResolver"</span> <span class="token keyword">class</span><span class="token operator">=</span><span class="token string">"org.springframework.web.servlet.view.InternalResourceViewResolver"</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>property name<span class="token operator">=</span><span class="token string">"prefix"</span> value<span class="token operator">=</span><span class="token string">"/WEB-INF/pages/"</span><span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>property name<span class="token operator">=</span><span class="token string">"suffix"</span> value<span class="token operator">=</span><span class="token string">".jsp"</span><span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>bean<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>过滤静态资源<span class="token operator">--</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>mvc<span class="token operator">:</span>resources location<span class="token operator">=</span><span class="token string">"/css"</span> mapping<span class="token operator">=</span><span class="token string">"/css/**"</span><span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>mvc<span class="token operator">:</span>resources location<span class="token operator">=</span><span class="token string">"/images/"</span> mapping<span class="token operator">=</span><span class="token string">"/images/**"</span><span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>mvc<span class="token operator">:</span>resources location<span class="token operator">=</span><span class="token string">"/js/"</span> mapping<span class="token operator">=</span><span class="token string">"/js/**"</span><span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>开启SpringMVC注解的支持<span class="token operator">--</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>mvc<span class="token operator">:</span>annotation<span class="token operator">-</span>driven<span class="token operator">/</span><span class="token operator">&gt;</span>
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    [/code]

    </beans>

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    5.创建jsp页面,并编写controller代码

    编写index.jsp页面

    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <body>
    <a href="account/findAll">测试SpringMVC查询</a>
    </body>
    </html>
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    [/code]
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    在controller层中的AccountController的class类中编写代码

    package com.gx.controller;
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    [/code]

    import com.gx.domain.Account;
    import com.gx.service.AccountService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;

    import java.util.List;

    @Controller
    public class AccountController {

    <span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/account/findAll"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> String <span class="token function">findAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
    System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"Controller表现层:查询所有账户..."</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">return</span> <span class="token string">"list"</span><span class="token punctuation">;</span>  <span class="token comment">//在视图解析器中配置了前缀后缀</span>
    <span class="token punctuation">}</span>
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    [/code]

    }

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    这时候就要创建controller跳转的list.jsp页面了:




    list.jsp页面创建好了,编写一下内容,只是看是否跳转成功,输出一句话即可:

    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%--
    Created by IntelliJ IDEA.
    User: Bule
    Date: 2019/9/2
    Time: 7:32
    To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
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    [/code]

    <html>
    <head>
    <title>Title</title>
    </head>
    <body>
    <h2>查询所有的账户</h2>

    </body>
    </html>

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    6.部署Tomcat进行测试




    7.测试运行



    到这里,spring、springmvc的开发环境就都搭建好了,不容易啊,都坚持看到这里了,给你点个赞,接下来是整合spring和springmvc了!

    4. Spring整合SpringMVC的框架

    整合之前,想一想,怎样去整合Spring、SpringMVC框架呢,怎么才算是整合成功了呢,带着问题,一起来吧!

    1、Spring整合SpringMVC的框架原理分析

    整合成功的表现:在controller(SpringMVC)中能成功的调用service(Spring)对象中的方法。要想在controller中调用service方法,就要注入service到controller中来,有service对象才可以调用service方法,方法是这样没有错,但是有一个问题,就是启动Tomcat之后试想一下,在web.xml中配置有前端控制器,web容器会帮我们加载springmvc.xml配置文件,在springmvc.xml配置文件中我们配置情况是只扫描controller,别的不扫,而spring.xml文件就从头到尾没有执行过,spring中的配置扫描自然也不会去扫描,就相当于没有将spring交到IOC容器当中去,所以,现在的解决方案就是,在启动服务器时就加载spring配置文件,怎么实现呢?这时候监听器listener就派上用场了,具体实现如下:

    2、在web.xml中配置ContextLoaderListener监听器

    在项目启动的时候,就去加载applicationContext.xml的配置文件,在web.xml中配置ContextLoaderListener监听器(该监听器只能加载WEB-INF目录下的applicationContext.xml的配置文件)。要想加载applicationContext.xml的配置文件有两种方法,第一种(不建议):

    第二种(强烈建议):在web.xml中配置加载路径

    <!--配置Spring的监听器,默认只加载WEB-INF目录下的applicationContext.xml配置文件-->
    <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!--设置配置文件的路径-->
    <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
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    [/code]

    至于为啥强烈建议第二种呢,是因为我们在整合过程中会有许多配置文件,我们自定义一个类似pages资源文件夹专门管理这些配置文件,方便管理,方便维护!!!

    3. controller中注入service对象,调用service对象方法并测试

    这时候,启动服务器时也会加载spring配置文件了,那么,我们可以在controller中注入service了,于是开始编写controller代码:

    package com.gx.controller;
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    [/code]

    import com.gx.domain.Account;
    import com.gx.service.AccountService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;

    import java.util.List;

    @Controller
    public class AccountController {

    <span class="token annotation punctuation">@Autowired</span>   <span class="token comment">//按类型注入</span>
    <span class="token keyword">private</span> AccountService accountService<span class="token punctuation">;</span>

    <span class=“token annotation punctuation”>@RequestMapping</span><span class=“token punctuation”>(</span><span class=“token string”>"/account/findAll"</span><span class=“token punctuation”>)</span>
    <span class=“token keyword”>public</span> String <span class=“token function”>findAll</span><span class=“token punctuation”>(</span>Model model<span class=“token punctuation”>)</span><span class=“token punctuation”>{</span>
    System<span class=“token punctuation”>.</span>out<span class=“token punctuation”>.</span><span class=“token function”>println</span><span class=“token punctuation”>(</span><span class=“token string”>“Controller表现层:查询所有账户…”</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>

    List&lt;span class="token generics function"&gt;&lt;span class="token punctuation"&gt;&amp;lt;&lt;/span&gt;Account&lt;span class="token punctuation"&gt;&amp;gt;&lt;/span&gt;&lt;/span&gt; list &lt;span class="token operator"&gt;=&lt;/span&gt; accountService&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;findAll&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    &lt;span class="token keyword"&gt;return&lt;/span&gt; &lt;span class="token string"&gt;"list"&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;

    <span class=“token punctuation”>}</span>

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    }

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    编写完成,开始测试,启动Tomcat,效果

    到这里,
    总算是整合完了spring、springmvc,同学你还能看到这里,我也挺欣慰的哈哈,手动再给你点个赞,接下来编写MyBatis环境惹!

    5、MyBatis框架代码的编写

    一看到Mybatis,就要想到dao,没错,MyBatis环境搭建首先是dao,搭建mybatis,之前要编写mapper映射的配置文件,其实挺麻烦的,所以我选择使用注解!

    1、在IAccountdao接口方法上添加注解,编写SQL语句

    package com.gx.dao;
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    [/code]

    import com.gx.domain.Account;
    import org.apache.ibatis.annotations.Insert;
    import org.apache.ibatis.annotations.Select;
    import org.springframework.stereotype.Repository;

    import java.util.List;

    @Repository //此注解代表这是一个持久层,用法类似@controller、@service
    public interface IAccountdao {

    <span class="token annotation punctuation">@Select</span><span class="token punctuation">(</span><span class="token string">"select * from account"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> List<span class="token generics function"><span class="token punctuation">&lt;</span>Account<span class="token punctuation">&gt;</span></span> <span class="token function">findAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token annotation punctuation">@Insert</span><span class="token punctuation">(</span><span class="token string">"insert into account (name,money) value(#{name},#{money})"</span><span class="token punctuation">)</span>
    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">saveAccount</span><span class="token punctuation">(</span>Account account<span class="token punctuation">)</span><span class="token punctuation">;</span>
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    [/code]

    }

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    2.创建SqlMapConfig.xml的配置文件并编写

    和之前创建配置文件一样,创建:

    编写:

    <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
    <environments default="mysql">
    <environment id="mysql">
    <transactionManager type="JDBC"/>
    <dataSource type="POOLED">
    <property name="driver" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql:///ssm"/>
    <property name="username" value="root"/>
    <property name="password" value="root"/>
    </dataSource>
    </environment>
    </environments>
    <!-- 使用的是注解 -->
    <mappers>
    <!-- <mapper class="com.gx.dao.IAccountdao"/> --> <!-- 该包下所有的dao接口都可以使用 -->
    <package name="com.gx.dao"/>
    </mappers>
    </configuration>
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    [/code]

    因为我使用的是注解,我觉得还是有必要提一下以下三种方法:

    3. 创建并编写Mybatis测试方法

    创建:

    编写:

    package com.gx.test;
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    [/code]

    import com.gx.dao.IAccountdao;
    import com.gx.domain.Account;
    import org.apache.ibatis.io.Resources;
    import org.apache.ibatis.session.SqlSession;
    import org.apache.ibatis.session.SqlSessionFactory;
    import org.apache.ibatis.session.SqlSessionFactoryBuilder;
    import org.junit.Test;

    import java.io.IOException;
    import java.io.InputStream;
    import java.util.List;

    public class TestMyBatis {

    <span class="token annotation punctuation">@Test</span>
    <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">run1</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token keyword">throws</span> IOException <span class="token punctuation">{</span>
    Account account <span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">Account</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    account<span class="token punctuation">.</span><span class="token function">setName</span><span class="token punctuation">(</span><span class="token string">"杜永蓝"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    account<span class="token punctuation">.</span><span class="token function">setMoney</span><span class="token punctuation">(</span><span class="token number">200d</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token comment">// 加载配置文件</span>
    InputStream in <span class="token operator">=</span> Resources<span class="token punctuation">.</span><span class="token function">getResourceAsStream</span><span class="token punctuation">(</span><span class="token string">"SqlMapConfig.xml"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token comment">// 创建SqlSessionFactory对象</span>
    SqlSessionFactory factory <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">SqlSessionFactoryBuilder</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">build</span><span class="token punctuation">(</span>in<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token comment">// 创建SqlSession对象</span>
    SqlSession session <span class="token operator">=</span> factory<span class="token punctuation">.</span><span class="token function">openSession</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token comment">// 获取到代理对象</span>
    IAccountdao dao <span class="token operator">=</span> session<span class="token punctuation">.</span><span class="token function">getMapper</span><span class="token punctuation">(</span>IAccountdao<span class="token punctuation">.</span><span class="token keyword">class</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    &lt;span class="token comment"&gt;// 保存&lt;/span&gt;
    dao&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;saveAccount&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;account&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    
    &lt;span class="token comment"&gt;// 提交事务&lt;/span&gt;
    session&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;commit&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    
    &lt;span class="token comment"&gt;// 关闭资源&lt;/span&gt;
    session&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;close&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    in&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;close&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    [/code]

    <span class=“token punctuation”>}</span>

    <span class=“token annotation punctuation”>@Test</span>
    <span class=“token keyword”>public</span> <span class=“token keyword”>void</span> <span class=“token function”>run2</span><span class=“token punctuation”>(</span><span class=“token punctuation”>)</span> <span class=“token keyword”>throws</span> Exception <span class=“token punctuation”>{</span>
    InputStream in <span class=“token operator”>=</span> Resources<span class=“token punctuation”>.</span><span class=“token function”>getResourceAsStream</span><span class=“token punctuation”>(</span><span class=“token string”>“SqlMapConfig.xml”</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>

    SqlSessionFactory factory &lt;span class="token operator"&gt;=&lt;/span&gt; &lt;span class="token keyword"&gt;new&lt;/span&gt; &lt;span class="token class-name"&gt;SqlSessionFactoryBuilder&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;build&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;in&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    
    SqlSession session &lt;span class="token operator"&gt;=&lt;/span&gt; factory&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;openSession&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    
    IAccountdao dao &lt;span class="token operator"&gt;=&lt;/span&gt; session&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;getMapper&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;IAccountdao&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token keyword"&gt;class&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    
    List&lt;span class="token generics function"&gt;&lt;span class="token punctuation"&gt;&amp;lt;&lt;/span&gt;Account&lt;span class="token punctuation"&gt;&amp;gt;&lt;/span&gt;&lt;/span&gt; list &lt;span class="token operator"&gt;=&lt;/span&gt; dao&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;findAll&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    &lt;span class="token keyword"&gt;for&lt;/span&gt; &lt;span class="token punctuation"&gt;(&lt;/span&gt;Account account&lt;span class="token operator"&gt;:&lt;/span&gt; list &lt;span class="token punctuation"&gt;)&lt;/span&gt; &lt;span class="token punctuation"&gt;{&lt;/span&gt;
    System&lt;span class="token punctuation"&gt;.&lt;/span&gt;out&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;println&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;account&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    &lt;span class="token punctuation"&gt;}&lt;/span&gt;
    
    session&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;close&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;
    in&lt;span class="token punctuation"&gt;.&lt;/span&gt;&lt;span class="token function"&gt;close&lt;/span&gt;&lt;span class="token punctuation"&gt;(&lt;/span&gt;&lt;span class="token punctuation"&gt;)&lt;/span&gt;&lt;span class="token punctuation"&gt;;&lt;/span&gt;

    <span class=“token punctuation”>}</span>

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    }

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    运行测试:

    运行效果:

    到这里,mybatis环境搭建算是完成了, ,哈哈接下来搭建最后整合spring、mybatis!(估计看到这里,你也饿了吧)

    6. Spring整合MyBatis框架

    Spring整合MyBatis框架之前,先想一想,怎样才算整合成功呢?其实,这和之前的spring整合springMVC的套路差不多,其实就是,Service能成功调用dao对象,能够做查询操作或者新增数据能存进数据库。现在spring已经是在IOC容器中了,dao是一个接口,可以通过程序帮这个接口生成代理对象,我们要是可以把这个代理对象也放进IOC容器,那么service就可以拿到这个对象,之后在service中做一个注入,service从而调用dao代理对象的方法,那么我们怎么去实现dao接口生成的代理对象放入IOC容器呢?其实很简单,只需要如下操作!
    整合目的:把SqlMapConfig.xml配置文件中的内容配置到applicationContext.xml配置文件中

    1、在applicationContext.xml中配置数据库连接池

    至于为啥要配池子,我不说大家应该也知道,毕竟各位都是学过ssm的大神了

    <!--Spring整合MyBatis框架-->
    <!--配置连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <property name="driverClass" value="com.mysql.jdbc.Driver"/>
    <property name="jdbcUrl" value="jdbc:mysql:///ssm"/>
    <property name="user" value="root"/>
    <property name="password" value="root"/>
    </bean>
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    [/code]

    2、在applicationContext.xml中配置SqlSessionFactory工厂

    没配置工厂之前,我们用Test测试的时候,每次都要先创建工厂,因为工厂能够给我们创建SqlSession,有了SqlSession就可以通过SqlSession拿到代理对象。现在我们直接在applicationContext.xml中配置SqlSessionFactory工厂,这就相当于IOC容器中有了工厂,就可以去创建SqlSession,进而通过SqlSession拿到代理对象,没必要每次测试都去创建工厂。

    <!--配置SqlSessionFactory工厂-->
    <bean id="sqlSessonFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    </bean>
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    [/code]

    3、在applicationContext.xml中配置IAccountdao接口所在包

    因为工厂有了,SqlSession也有了,那代理谁呢,所以我们要配置IAccountdao接口所在包,告诉SqlSession去代理接口所在包中的代理,从而存到IOC容器中

    <!--配置IAccountdao接口所在包-->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.gx.dao"/>
    </bean>
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    [/code]

    4、小结上面的三个配置

    其实,上面的操作就是把mybatis中的配置(SqlMapConfig.xml)转移到spring中去,让它产生代理并存到IOC容器中

    5、完善Service层代码

    在AccountServiceImpl实现类中编写代码:

    package com.gx.service.Impl;
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    [/code]

    import com.gx.dao.IAccountdao;
    import com.gx.domain.Account;
    import com.gx.service.AccountService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;

    import java.util.List;
    @Service(“accountService”)
    public class AccountServiceImpl implements AccountService {

    <span class="token annotation punctuation">@Autowired</span>
    <span class="token keyword">private</span> IAccountdao iaccountdao<span class="token punctuation">;</span>

    <span class=“token annotation punctuation”>@Override</span>
    <span class=“token keyword”>public</span> List<span class=“token generics function”><span class=“token punctuation”>&lt;</span>Account<span class=“token punctuation”>&gt;</span></span> <span class=“token function”>findAll</span><span class=“token punctuation”>(</span><span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    System<span class=“token punctuation”>.</span>out<span class=“token punctuation”>.</span><span class=“token function”>println</span><span class=“token punctuation”>(</span><span class=“token string”>“Service业务层:查询所有账户…”</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>
    <span class=“token keyword”>return</span> iaccountdao<span class=“token punctuation”>.</span><span class=“token function”>findAll</span><span class=“token punctuation”>(</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

    <span class=“token annotation punctuation”>@Override</span>
    <span class=“token keyword”>public</span> <span class=“token keyword”>void</span> <span class=“token function”>saveAccount</span><span class=“token punctuation”>(</span>Account account<span class=“token punctuation”>)</span> <span class=“token punctuation”>{</span>
    System<span class=“token punctuation”>.</span>out<span class=“token punctuation”>.</span><span class=“token function”>println</span><span class=“token punctuation”>(</span><span class=“token string”>“Service业务层:保存帐户…”</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

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    }

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    6、完善Controller层代码

    package com.gx.controller;
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    [/code]

    import com.gx.domain.Account;
    import com.gx.service.AccountService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;

    import java.util.List;

    @Controller
    public class AccountController {

    <span class="token annotation punctuation">@Autowired</span>
    <span class="token keyword">private</span> AccountService accountService<span class="token punctuation">;</span>

    <span class=“token annotation punctuation”>@RequestMapping</span><span class=“token punctuation”>(</span><span class=“token string”>"/account/findAll"</span><span class=“token punctuation”>)</span>
    <span class=“token keyword”>public</span> String <span class=“token function”>findAll</span><span class=“token punctuation”>(</span>Model model<span class=“token punctuation”>)</span><span class=“token punctuation”>{</span> <span class=“token comment”>//存数据, Model对象</span>
    System<span class=“token punctuation”>.</span>out<span class=“token punctuation”>.</span><span class=“token function”>println</span><span class=“token punctuation”>(</span><span class=“token string”>“Controller表现层:查询所有账户…”</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>
    <span class=“token comment”>// 调用service的方法</span>
    List<span class=“token generics function”><span class=“token punctuation”>&lt;</span>Account<span class=“token punctuation”>&gt;</span></span> list <span class=“token operator”>=</span> accountService<span class=“token punctuation”>.</span><span class=“token function”>findAll</span><span class=“token punctuation”>(</span><span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>
    model<span class=“token punctuation”>.</span><span class=“token function”>addAttribute</span><span class=“token punctuation”>(</span><span class=“token string”>“list”</span><span class=“token punctuation”>,</span>list<span class=“token punctuation”>)</span><span class=“token punctuation”>;</span>
    <span class=“token keyword”>return</span> <span class=“token string”>“list”</span><span class=“token punctuation”>;</span>
    <span class=“token punctuation”>}</span>

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    }

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    7、完善list.jsp页面

    因为要使用到jstl显示数据库数据,所以list.jsp页面如下:

    <%--
    Created by IntelliJ IDEA.
    User: Bule
    Date: 2019/9/2
    Time: 7:32
    To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
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    [/code]

    <html>
    <head>
    <title>Title</title>
    </head>
    <body>
    <h2>查询所有的账户</h2>
    <c:forEach items="${list}" var=“account”>
    ${account.name}
    </c:forEach>
    </body>
    </html>

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    8、运行测试


    到这里,SSM整合就基本完成,各位可以去打王者楼喽,咳咳等等…还没完成,我只是说基本完成。
    接下来,spring整合mybatis框架还需要配置事务(Spring的声明式事务管理),至于为啥,一张图告诉你!(哎呀…ai…ai…别打…别打…别打脸…)

    7.spring整合mybatis框架配置事务(Spring的声明式事务管理)

    细心的小伙伴可能发现了,我在整合spring、mybatis测试的时候(TestMybatis中),新增数据保存的时候手动的提交过事务 session.commit(),如果不写这一句,就会出现数据没提交的情况,因此为了完美的整合ssm,我们必须配置Spring的声明式事务管理!

    1、在applicationContext.xml中配置Spring框架声明式事务管理

    如果对一些execution表达式什么的不太清除的或者AOP不是特别印象深刻,可以去看看我的这篇文章【Spring框架学习总结二】Spring的AOP通俗理解以及AOP的入门开发

    <!--配置Spring框架声明式事务管理-->
    <!--配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource" />
    </bean>
    <span class="token operator">&lt;</span><span class="token operator">!</span><span class="token operator">--</span>配置事务通知<span class="token operator">--</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>tx<span class="token operator">:</span>advice id<span class="token operator">=</span><span class="token string">"txAdvice"</span> transaction<span class="token operator">-</span>manager<span class="token operator">=</span><span class="token string">"transactionManager"</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>tx<span class="token operator">:</span>attributes<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>tx<span class="token operator">:</span>method name<span class="token operator">=</span><span class="token string">"find*"</span> read<span class="token operator">-</span>only<span class="token operator">=</span><span class="token string">"true"</span><span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span>tx<span class="token operator">:</span>method name<span class="token operator">=</span><span class="token string">"*"</span> isolation<span class="token operator">=</span><span class="token string">"DEFAULT"</span><span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>tx<span class="token operator">:</span>attributes<span class="token operator">&gt;</span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>tx<span class="token operator">:</span>advice<span class="token operator">&gt;</span>
    [/code]

    <span class=“token operator”>&lt;</span><span class=“token operator”>!</span><span class=“token operator”>–</span>配置AOP增强<span class=“token operator”>–</span><span class=“token operator”>&gt;</span>
    <span class=“token operator”>&lt;</span>aop<span class=“token operator”>:</span>config<span class=“token operator”>&gt;</span>
    <span class=“token operator”>&lt;</span>aop<span class=“token operator”>:</span>advisor advice<span class=“token operator”>-</span>ref<span class=“token operator”>=</span><span class=“token string”>“txAdvice”</span> pointcut<span class=“token operator”>=</span><span class=“token string”>“execution(* com.gx.service.Impl.ServiceImpl.(…))”</span><span class=“token operator”>/</span><span class=“token operator”>&gt;</span>
    <span class=“token operator”>&lt;</span><span class=“token operator”>/</span>aop<span class=“token operator”>:</span>config<span class=“token operator”>&gt;</span>

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    2、完善index.jsp页面

    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
    <title>Title</title>
    </head>
    <body>
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    [/code]

    <a href=“account/findAll”>测试查询</a>

    <h3>测试包</h3>

    <form action=“account/save” method=“post”>
    姓名:<input type=“text” name=“name” /><br/>
    金额:<input type=“text” name=“money” /><br/>
    <input type=“submit” value=“保存”/><br/>
    </form>

    </body>
    </html>

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    3、完善Service层、Controller层代码

    Service层:在AccountServiceImpl实现类中调用service中的saveAccount(account)方法

    @Override
    public void saveAccount(Account account) {
    System.out.println("Service业务层:保存帐户...");
    iaccountdao.saveAccount(account);  //调用service中的saveAccount(account)方法
    }
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    [/code]

    Controller层代码:在AccountController类中添加一个保存save的方法

    @RequestMapping("/account/save")
    public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {
    accountService.saveAccount(account);
    response.sendRedirect(request.getContextPath()+"/account/findAll");
    return;
    }
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    [/code]

    4、测试运行


    OK ,到这里,能够坚持到这里的各位都是人才,说话有好听,敲的代码又好看,我超喜欢你们,所以,我要是哪里写错了,欢迎指出,还望不吝赐教!!!

    8、源码、源码、源码~重要的标题发三遍

    同时附上源码给各位,毕竟坚持看到最后,也是真的不容易(
    源码上传至:CSDN主页资源上

    考虑到C币问题,已分享至百度网盘,啥?没有网盘账户?出门右转,秋名山决斗…

    链接:https://pan.baidu.com/s/1lYtogVNBvK2taR1luDCdoA
    提取码:htov

    欢迎各位关注我的公众号,一起探讨技术,向往技术,追求技术…

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    [/code]
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