关于Spring和mybatis的整合

Spring同Mybatis的整合

1.引入相应的jar包。（Mybatis的jar包，Spring的jar包，mybatis-spring-1.1.1.jar）。

2.编写相应的包（三层的包）。搭建。

3.配置相应的spring的配置。

1）配置相应的数据源的配置。

<?xml version="1.0" encoding="UTF-8"?>

<beans

xmlns="http://www.springframework.org/schema/beans"

xmlns:tx="http://www.springframework.org/schema/tx"

xmlns:p="http://www.springframework.org/schema/p"

xmlns:aop="http://www.springframework.org/schema/aop"

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-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/aop

http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

<!-- 配置数据源-->

<bean id="jdbcDataSource"

class="org.springframework.jdbc.datasource.DriverManagerDataSource">

<property name="driverClassName">

<value>oracle.jdbc.driver.OracleDriver</value>

</property>

<property name="url">

<value>jdbc:oracle:thin:@127.0.0.1:1521:orcl</value>

</property>

<property name="username">

<value>bbs</value>

</property>

<property name="password">

<value>123</value>

</property>

</bean>

</beans>

2）配置mybatis的SqlSessionFactory（也需要在ApplicationContext里做配置）。

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<property name="dataSource" ref="jdbcDataSource" />

<property name="configLocation" value="classpath:mybatis-config.xml"></property>

</bean>

4.搭建mybatis的框架了（编写相应的实体类，SQL映射文件）。结果如下：

注意的问题：去掉<association>节点里的foreignColumn属性。

去掉所有的select节点里的resultSets的属性。

比如之前设置的UserInfoMapper。

<?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.gxa.bj.dao.imp.UserMapper">

<insert id="addItem" parameterType="com.gxa.bj.model.UserInfo">

insert into UserInfo(userid,username,userpwd,useremail,useraddress,regreason)

values(usernext.nextval,#{userName},#{userPwd},#{userEmail},#{userAddress},#{regReason})

</insert>

<delete id="removeItem">

delete from UserInfo where userId=#{id}

</delete>

<update id="updateItem" parameterType="com.gxa.bj.model.UserInfo">

update userinfo set

<if test="userName!=null">

userName = #{userName},

</if>

<if test="userPwd!=null">

userPwd = #{userPwd},

</if>

<if test= "userEmail!=null">

userEmail = #{userEmail},

</if>

<if test= "userAddress!=null">

userAddress = #{userAddress},

</if>

<if test= "regReason!=null">

regReason = #{regReason},

</if>

userId=#{userId} Where userId=#{userId}

</update>

<select id="getModel" resultType="com.gxa.bj.model.UserInfo">

select * from userinfo where userid=#{id}

</select>

<select id="getUsers" parameterType="java.lang.String" resultType="com.gxa.bj.model.UserInfo" resultSets="com.gxa.bj.model.UserInfo">

select * from userinfo where userName like '%${value}%'

</select>

<select id="getList" resultSets="com.gxa.bj.model.UserInfo" parameterType="com.gxa.bj.model.UserInfo" resultType="com.gxa.bj.model.UserInfo">

Select * From userInfo

<where>

<if test="userName!=null">

And userName like #{userName}

</if>

<if test="userId>0">

And userId =#{userId}

</if>

<if test="userPwd!=null and userPwd!=''">

And userPwd like #{userPwd}

</if>

</where>

</select>

<select id="getListByPage" parameterType="com.gxa.bj.model.UserInfoPage"  resultType="com.gxa.bj.model.UserInfo">

Select u.*

From (Select rownum as num, userinfo.*

from userinfo

<where>

<if test="userName!=null">

And userName like #{userName}

</if>

<if test="userId >= 10">

And userId =#{userId}

</if>

<if test="userPwd!=null and userPwd !='' ">

And userPwd like #{userPwd}

</if>

</where>

) u Where u.num between  #{startNum} and #{endNum}

</select>

</mapper>

5.编写相应的dao层。比如创建的是UserInfoMapper。截图如下：（这个层里全是接口）

6.编写相应的Service层，sevice层里需要引入的是dao层。

package com.gxa.bj.service;

import java.util.List;

import com.gxa.bj.dao.imp.UserMapper;

import com.gxa.bj.model.UserInfo;

public class UserInfoService {

private UserMapper userMapper;

public UserMapper getUserMapper() {

return userMapper;

}

public void setUserMapper(UserMapper userMapper) {

this.userMapper = userMapper;

}

public List<UserInfo> getList(UserInfo t){

return userMapper.getList(t);

}

}

7.编写相应的action层：action层里需要service层：

package com.gxa.bj.action;

import java.util.List;

import com.gxa.bj.model.UserInfo;

import com.gxa.bj.service.UserInfoService;

public class UserInfoAction {

private UserInfoService userInfoService;

public UserInfoService getUserInfoService() {

return userInfoService;

}

public void setUserInfoService(UserInfoService userInfoService) {

this.userInfoService = userInfoService;

}

public List<UserInfo> getList(UserInfo u){

return userInfoService.getList(u);

}

}

8.在spring里的配置文件，将各层注入到spring中。

<!--配置dao层 -->

<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">

<property name="mapperInterface" value="com.gxa.bj.dao.imp.UserMapper"></property>

<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>

</bean>

<!-- 配置Service层 -->

<bean id="userInfoService" class="com.gxa.bj.service.UserInfoService">

<property name="userMapper" ref="userMapper"></property>

</bean>

<!-- 配置Action层 -->

<bean id="userInfoAction" class="com.gxa.bj.action.UserInfoAction">

<property name="userInfoService" ref="userInfoService"></property>

</bean>