mybatis整合Spring的基本步骤

一：添加jar包

mybatis:

mybatis-3.2.0.jar

                mybatis-spring-1.1.1.jar    //  整合spring的关键jar包

                log4j-1.2.17.jar

Spring: 

spring-aop-3.2.0.RELEASE.jar

                   spring-beans-3.2.0.RELEASE.jar

                   spring-context-3.2.0.RELEASE.jar

                   spring-core-3.2.0.RELEASE.jar

                   spring-expression-3.2.0.RELEASE.jar

                   spring-jdbc-3.2.0.RELEASE.jar

                   spring-test-3.2.4.RELEASE.jar

                   spring-tx-3.2.0.RELEASE.jar

  //spring 以来的jar包

                   aopalliance-1.0.jar

                   cglib-nodep-2.2.3.jar

                   commons-logging-1.1.1.jar

mysql驱动：

mysql-connector-java-5.0.4-bin.jar

二：创建实体类及数据库对应的表

public class User {private int id;private String name;private Date birthday;private double salary;        //set,get方法}

CREATE TABLE user(user_id INT AUTO_INCREMENT PRIMARY KEY,user_name VARCHAR(30),user_birthday DATE,user_salary DOUBLE)

三：mapper接口及对应的映射文件

UserMapper接口实现基本的crud功能

import com.mybatis.beans.User;public interface UserMapper {void save(User user);void update(User user);void delete(int id);User findById(int id);List<User> findAll();}

对应实体类的userMapper.xml文件

<pre name="code" class="html"><?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"> <!-- namespace必须与接口的全类名一致--><mapper namespace="com.mybatis.mapper.UserMapper"><!-- id必须和mapper接口对应的功能名称一致 ，此处只写save功能 --><insert id="save" parameterType="User">insert into user(name, birth, salary) values(#{name},#{birth},#{salary})</insert></mapper>

四:Spring的配置文件:beans.xml

<pre name="code" class="html"><pre name="code" class="html"><?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: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/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"><!-- mysql连接的基本配置，使用的是spring提供的 DriverManagerDataSource--><bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"><property name="driverClassName" value="com.mysql.jdbc.Driver"></property><property name="username" value="root"></property><property name="password" value="13177180723"></property><property name="url" value="jdbc:mysql:///mybatis"></property></bean><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"></property><!-- 别名包，等同于mybatis配置文件conf.xml中的typeAliases，简化映射文件.xml中类的引用 --><property name="typeAliasesPackage" value="com.mybatis.beans"></property></bean><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!-- mapper接口扫描的包，即将此包下所有符合的mapper接口加载到SpringIOC容器管理 --><property name="basePackage" value="com.mybatis.mapper"></property><property name="sqlSessionFactory" ref="sqlSessionFactory"></property></bean><!-- 添加事务 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"></property></bean><!-- 启动事务 --><tx:annotation-driven transaction-manager="transactionManager"/></beans>

五:mybatis的配置文件:config.xml

<?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><!-- Spring整合myBatis后，这个配置文件基本可以不要了--><!-- 设置外部配置文件 --><!-- 设置类别名 --><!-- 设置数据库连接环境 --><!-- 映射文件 --></configuration>

六：测试

<pre name="code" class="java">package com.mybatis.test;import static org.junit.Assert.*;import java.util.Date;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import com.mybatis.beans.User;import com.mybatis.mapper.UserMapper;@RunWith(SpringJUnit4ClassRunner.class) //启用spring的测试框架@ContextConfiguration("/beans.xml") //加载spring配置文件public class MbtSpTest {@Autowired  //自动注入mapper接口private UserMapper userMapper;@Testpublic void test() {User user = new User(-1, "Luxi", new Date(), 2000.00);userMapper.save(user); }}