springmvc+mybatis+mysql整合实战
2015-07-26 13:33
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请叫我雷锋，今天为大家分享springmvc史上最简单的整合之一，好了，废话不多说，首先我们新建一个工程，命名为：
下面是我的代码实现类，在
接着我们在
package com.cmh.dao;
import com.cmh.entity.Log;
在
下面是我们的service接口:
在
package com.cmh.service.impl;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.cmh.dao.LogDao;
import com.cmh.entity.Log;
import com.cmh.service.LogService;
好了接下来我们来写一个实现类来测试一下：
下面是测试查找的功能，运行结果如下:
接下来我们就来配置一下springmvc，首先打开你的web.xml,添加如下配置：
然后配置
好了，接下来我们在
下面是我的jsp目录：
jsp代码也比较简单，index.jsp的代码如下，view文件夹的你随便写点：
好了，现在运行一下，看看是不是有新的用户被添加进去了，源代码在：
资源下载
，希望此章节对您有所帮助
MySmall_SSM_Project，接着引入我们工程所需要的包，如下图：
下面是maven的引入包（如果你是用maven就导入以下列表，我用的直接导入jar，所以不用）：
[code]<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>MyBaits_HelloWorld_01</groupId> <artifactId>MyLove</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>MyLove Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- spring版本号 --> <spring.version>4.0.2.RELEASE</spring.version> <!-- mybatis版本号 --> <mybatis.version>3.2.6</mybatis.version> <!-- log4j日志文件管理包版本 --> <slf4j.version>1.7.7</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <!-- 表示开发的时候引入，发布的时候不会加载此包 --> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</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-oxm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis/spring包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <!-- 导入java ee jar 包 --> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 导入Mysql数据库链接jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.30</version> </dependency> <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.2.2</version> </dependency> <!-- JSTL标签类 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 日志文件管理包 --> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <!-- 格式化对象，方便输出日志 --> <!-- <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.41</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> --> <!-- log end --> <!-- 映入JSON --> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> <!-- 上传组件包 --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.9</version> </dependency> </dependencies> <build> <finalName>MyLove</finalName> </build> </project>
我的工程目录：
下面是我的代码实现类，在
com.cmh.entity下新建一个
Log类，代码如下:
[code]package com.cmh.entity;
public class Log {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}接着我们在
com.cmh.dao下去写增删改查的接口对象方法，代码如下：
package com.cmh.dao;
import com.cmh.entity.Log;
[code]public interface LogDao {
int insert(Log log);
int remove(int id);
Log AimTo(int id);
int update(Log log);
}在
com.cmh.mapping编写实现类接口映射文件（记住，此处的id名一定要与接口名一一对应），如下：
[code]<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.cmh.dao.LogDao">
<select id="AimTo" resultType="Log" parameterType="int">
select * from t_log where id=#{id}
</select>
<insert id="insert" parameterType="Log" useGeneratedKeys="true">
insert into t_log(username,password) values (#{username,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR})
</insert>
<delete id="remove" parameterType="int">
delete from t_log where id=#{id}
</delete>
<update id="update" parameterType="Log">
update t_log
<set >
<if test="username != null" >
username = #{username,jdbcType=VARCHAR},
</if>
<if test="password != null" >
password = #{password,jdbcType=VARCHAR},
</if>
</set>
where id = #{id,jdbcType=INTEGER}
</update>
</mapper>warning,不然sqlsessionfactory无法找到并注入:
下面是我们的service接口:
[code]package com.cmh.service;
import com.cmh.entity.Log;
public interface LogService {
public Log find(int id);
public int add(Log log);
public int change(Log log);
public int delete(int id);
}在
com.cmh.service.impl新建我们的service实现类：
package com.cmh.service.impl;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.cmh.dao.LogDao;
import com.cmh.entity.Log;
import com.cmh.service.LogService;
[code]@Service("logService")
public class LogServiceImpl implements LogService {
private LogDao logDao;
public LogDao getLogDao() {
return logDao;
}
@Resource
public void setLogDao(LogDao logDao) {
this.logDao = logDao;
}
@Override
public Log find(int id) {
// TODO Auto-generated method stub
return logDao.AimTo(id);
}
@Override
public int add(Log log) {
// TODO Auto-generated method stub
return logDao.insert(log);
}
@Override
public int change(Log log) {
// TODO Auto-generated method stub
return logDao.update(log);
}
@Override
public int delete(int id) {
// TODO Auto-generated method stub
return logDao.remove(id);
}
}spring_mybaits.xml配置如下:
[code]<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!--支持注解方式-->
<context:annotation-config />
<!--扫描所有注解类的包-->
<context:component-scan base-package="com.cmh" />
<!--配置jdbc参数，引用外部的参数配置-->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties"></property>
</bean>
<!--配置数据源-->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<!--增加mybatis的支持，将数据源导入到mybatis中，初始化SqlSessionFactoryBean中的bean-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!--设置别名，默认情况下typeAliasesPackage会把其下的类的别名设为类名，不设的话`com.cmh.mapping`中的parameterType="Log"要连报名一起写上-->
<property name="typeAliasesPackage" value="com.cmh.entity" />
<!--映射文件的路径-->
<property name="mapperLocations" value="classpath:com/cmh/mapping/*.xml"></property>
</bean>
<!--此处十分的关键，MapperScannerConfigurer会自动去扫描接口是否与映射文件中的配置名一致，然后生成一个代理对象来对接口进行初始化的操作，其操作全由代理对象负责实现-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--扫描包名下的类文件-->
<property name="basePackage" value="com.cmh.dao"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
</beans>jdbc.properties配置如下:
[code]jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/login jdbc.username=root jdbc.password=
好了接下来我们来写一个实现类来测试一下：
[code]import static org.junit.Assert.*;
import javax.annotation.Resource;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.cmh.entity.Log;
import com.cmh.service.LogService;
public class MyTest {
private ApplicationContext application=null;
private LogService logService=null;
public LogService getLogService() {
return logService;
}
@Resource(name="logService")
public void setLogService(LogService logService) {
this.logService = logService;
}
@Before
public void initParam(){
application=new ClassPathXmlApplicationContext("spring_mybaits.xml");
logService=(LogService)application.getBean("logService");
}
@Test
public void test() {
System.out.println(logService.find(2).getUsername());
}
@Test
public void test2(){
Log log=new Log();
log.setPassword("sss");
log.setUsername("ssedef");
int num=logService.add(log);
System.out.println(num);
}
@Test
public void test3(){
Log log=new Log();
log.setId(3);
log.setPassword("kk");
log.setUsername("kkk");
int num=logService.change(log);
System.out.println(num);
}
@Test
public void test4(){
System.out.println(logService.delete(1));
}
}下面是测试查找的功能，运行结果如下:
接下来我们就来配置一下springmvc，首先打开你的web.xml,添加如下配置：
[code] <!-- Spring和mybatis的配置文件,比寻配置，不然会报错 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring_mybaits.xml</param-value>
</context-param>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- Spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止Spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>然后配置
spring_mybaits.xml，代码比较简单，因为我用的是注解方式：
[code]<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.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/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">
<context:component-scan base-package="com.cmh.controller"/>
<!--添加mvc注解支持-->
<mvc:annotation-driven/>
<!--这个相当与是一个过滤器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/View/"/>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>好了，接下来我们在
com.cmh.controller添加一个
LogController类：
[code]package com.cmh.controller;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.cmh.entity.Log;
import com.cmh.service.LogService;
@Controller
@RequestMapping("/users")
public class LogController {
private LogService logService;
public LogService getLogService() {
return logService;
}
@Resource
public void setLogService(LogService logService) {
this.logService = logService;
}
@RequestMapping(method=RequestMethod.POST,value="/add")
public String add(Log log){
logService.add(log);
System.out.println(log.getUsername());
return "add";
}
@RequestMapping("/delete")
public String delete(){
return "delete";
}
@RequestMapping("/find")
public String find(){
return "find";
}
@RequestMapping("/change")
public String update(){
return "change";
}
}下面是我的jsp目录：
jsp代码也比较简单，index.jsp的代码如下，view文件夹的你随便写点：
[code]<%@ 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>Insert title here</title>
</head>
<body>
<form action="users/add" method="post">
username:<input type="text" name="username"><br>
password:<input type="password" name="password"><br>
<input type="submit" value="submit">
</form>
</body>
</html>好了，现在运行一下，看看是不是有新的用户被添加进去了，源代码在：
资源下载
，希望此章节对您有所帮助
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