2.5 maven+spring4.X基础上搭建mybatis

1.前言

1.本博客面向初级开发者。

2.本博客为系列博客，《1.X》系列为服务器数据库相关技术，前几章为简单搭建linux+tomcat+MySQL+nginx+redis、《2.X》为java后台技术前几章为搭建mevan+springmvc4+mybatis、《3.X》为前端UI技术，《4.X》为相关测试技术。

3.本博客在学习别人博客技术基础上，并加以自己实现研究优化为全部原创，有什么问题可以留言，不定期回答，互相交流学习。

2.搭建mybatis

1.准备

1.搭建maven项目

/article/9151594.html

2.搭建springmvc项目

/article/9151595.html

/article/9151596.html

3.使用使用mybatis-generator工具创建mybatis相关代码

/article/9151597.html

项目结构

2.新建sqlmap包

在com.my1下新建sqlmap包将生成的UserInfoMapper.xml放入

3.新建是实体entity包

在com.my1下新建entity包将生成的和UserInfoExample放入

4.dao包

在com.my1下dao包将生成的UserInfoMapper.java放入

这时会报错说明没有添加jar

5.添加jar

修改pom文件 如下

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>mavenSpringMybatisDemo</groupId>
<artifactId>mavenSpringMybatisDemo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>mavenSpringMybatisDemo Maven Webapp</name>
<url>http://maven.apache.org</url>

<!--   声明版本 -->
<properties>
<spring.version>4.0.2.RELEASE</spring.version>
<junit.version>4.11</junit.version>
</properties>

<dependencies>
<!--    maven包 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.0.4-b09</version>
</dependency>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-impl</artifactId>
<version>2.0.4-b09</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!--       springjar包 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>

<!--  spring -->
<!--        事务 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>

<!-- over -->

<!--     2016 mybatis学习 -->

<!-- mybatis 包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>

<!--mybatis spring 插件 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>

<!-- mysql连接 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>

<!-- 数据源 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.12</version>
</dependency>

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.4</version>
</dependency>

</dependencies>
<build>
<finalName>mavenSpringMybatisDemo</finalName>
</build>
</project>

6.增加关于mybatis的配置文件

在src/main/resources下新建mybatis包

下在新建spring-mybatis.xml配置文件

内容如下：

<?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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
">

<!-- 配置数据源 使用的是Druid数据源 -->
<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />

<!-- 初始化连接大小 -->
<property name="initialSize" value="0" />
<!-- 连接池最大使用连接数量 -->
<property name="maxActive" value="20" />

<!-- 连接池最小空闲 -->
<property name="minIdle" value="0" />
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="60000" />
<property name="poolPreparedStatements" value="true" />
<property name="maxPoolPreparedStatementPerConnectionSize"
value="33" />
<!-- 用来检测有效sql -->
<property name="validationQuery" value="${validationQuery}" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="testWhileIdle" value="true" />
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000" />
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="25200000" />
<!-- 打开removeAbandoned功能 -->
<property name="removeAbandoned" value="true" />
<!-- 1800秒，也就是30分钟 -->
<property name="removeAbandonedTimeout" value="1800" />
<!-- 关闭abanded连接时输出错误日志 -->
<property name="logAbandoned" value="true" />
<!-- 监控数据库 -->
<property name="filters" value="mergeStat" />
</bean>

<!-- myBatis文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 -->
<property name="mapperLocations" value="classpath:com/my1/sqlmap/*.xml" />
</bean>
<!-- mybatise通过接口来加载配置文件 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.my1.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>

<!-- 配置事务管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>

<!-- 注解方式配置事物 -->
<tx:annotation-driven transaction-manager="transactionManager" />

<!-- 拦截器方式配置事物 -->
<!--    <tx:advice id="transactionAdvice" transaction-manager="transactionManager"> -->
<!--        <tx:attributes> -->
<!--            <tx:method name="insert*" propagation="REQUIRED" /> -->
<!--            <tx:method name="update*" propagation="REQUIRED" /> -->
<!--            <tx:method name="delete*" propagation="REQUIRED" /> -->

<!--            <tx:method name="get*" propagation="SUPPORTS" read-only="true" /> -->
<!--            <tx:method name="find*" propagation="SUPPORTS" read-only="true" /> -->
<!--            <tx:method name="select*" propagation="SUPPORTS" read-only="true" /> -->

<!--        </tx:attributes> -->
<!--    </tx:advice> -->
<!-- Spring aop事务管理 -->
<!--    <aop:config> -->
<!--        <aop:pointcut id="transactionPointcut" -->
<!--            expression="execution(* org.andy.shop.service..*Impl.*(..))" /> -->
<!--        <aop:advisor pointcut-ref="transactionPointcut" -->
<!--            advice-ref="transactionAdvice" /> -->
<!--    </aop:config> -->

</beans>

7.增加项目配置文件

在src/main/resources下新建config.properties

内容：

validationQuery=SELECT 1
jdbc.url=jdbc:mysql://localhost:3306/school?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

8修改web.xml引入mybatis配置文件

修改web.xml 至如下

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="2.5"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <description>最简单的SpringMVC环境抢建</description>
<!-- 加载Srping配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/spring/applicationContext.xml,classpath:/mybatis/spring-mybatis.xml</param-value>
</context-param>
<!-- Spring 监听 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- SpringMVC配置 -->
<servlet>
<servlet-name>myspringmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 自定义springmvc的配置文件名称和路径 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/springmvc/springmvc-servlet.xml</param-value>
</init-param>
</servlet>
<!-- springmvc 请求后缀 -->
<servlet-mapping>
<servlet-name>myspringmvc</servlet-name>
<url-pattern>*.htmls</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

9.修改spring配置文件 引入config.properties

修改applicationContext.xml

内容至如下：

<?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-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 
<!-- 采用注释的方式配置bean -->
<context:annotation-config />

<!-- 配置要扫描的包 -->
<context:component-scan base-package="com.my1"></context:component-scan>

<!--引入配置属性文件 -->
<context:property-placeholder location="classpath:config.properties" />

</beans>

10.业务层加入相关业务类

service包下新建UserServiceImpl.java

内容如下：

package com.my1.service;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.my1.dao.UserInfoMapper;
import com.my1.entity.UserInfo;

/**
* 创建时间�?016-1-27 下午5:22:59
*
* @author andy
* @version 2.2
*/
@Service("userService")
public class UserServiceImpl  {

@Resource
private UserInfoMapper userInfoMapper;

public UserInfo getUsers(Integer id) {
return userInfoMapper.selectByPrimaryKey(id);
}

}

11.控制层加入控制类

controller包下增加UserController.java

package com.my1.controller;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.my1.entity.UserInfo;
import com.my1.service.UserServiceImpl;

/**
* 创建时间�?016-1-28 下午1:17:27
* @author andy
* @version 2.2
*/
@Controller
@RequestMapping("/user")
public class UserController {

@Resource
private UserServiceImpl userService;

@RequestMapping("/showInfo/{userId}")
public String showUserInfo(ModelMap modelMap, @PathVariable int userId){
UserInfo userInfo = userService.getUsers(userId);
modelMap.addAttribute("userInfo", userInfo);
return "/user/showInfo";
}

}

12.增加显示页面

webapp下WEB-INF下jsp包下增加user包下增加showInfo.jsp

内容：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>userInfo</title>
</head>
<body>

姓名： ${userInfo.uname}

</body>
</html>

13.访问

这样访问http://localhost:8080/mavenSpringMybatisDemo/user/showInfo/1.htmls

就能看到效果了



整体项目结构如下：

14demo下载

http://download.csdn.net/detail/zcjfzcjf/9507838

ps

搭建这个也是需要对于spring框架有一些理解的，所以说各位能不能搭建出来还是看缘分了，如果搭建不出来也不要着急，技术是只有交流才能共同进步的。