spring+mybatis 框架搭建

注意<!-- 中间的字要保持与左右留出一个空格，否则会报错说出现两杠线 -->

1.导入jar包

aopalliance-1.0.jar
asm-3.3.1.jar
cglib-2.2.2.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
commons-logging-1.1.1.jar
javassist-3.17.1-GA.jar
junit-4.9.jar
log4j-1.2.17.jar
mybatis-3.0.3.jar
mybatis-3.2.2.jar
mybatis-spring-1.0.0-RC3.jar
mysql-connector-java-5.1.10-bin.jar
slf4j-api-1.7.5.jar
slf4j-log4j12-1.7.5.jar
spring-aop-3.0.5.RELEASE.jar
spring-asm-3.0.5.RELEASE.jar
spring-beans-3.0.5.RELEASE.jar
spring-context-3.0.5.RELEASE.jar
spring-core-3.0.5.RELEASE.jar
spring-expression-3.0.5.RELEASE.jar
spring-jdbc-3.0.5.RELEASE.jar
spring-tx-3.0.5.RELEASE.jar

2.写

src

----cn.itcast.mybatis.damain

　　　　　　　　　　User.java

　　　　　　　　　　User.xml

----cn.itcast.mybatis.dao

　　　　　　　　　　IUserDao.java

　　　　　　　　　　UserDaoImpl.java

----cn.itcast.mybatis.service

　　　　　　　　　　IUserService

　　　　　　　　　　UserServiceImpl

----spring-beans.xml

----sqlMapConfig.xml

User.java

package cn.itcast.mybatis.service;

import java.util.List;

import cn.itcast.mybatis.domain.User;

public interface IUserService {
public List<User> list();
public User get(String id);
public int insert(User u);
public int update(User u);
public int deleteById(String id);
}

View Code
UserServiceDaoImpl.java

package cn.itcast.mybatis.service;

import java.util.List;

import cn.itcast.mybatis.dao.IUserDao;
import cn.itcast.mybatis.domain.User;

public class UserServiceImpl implements IUserService {

private IUserDao userDao;
public void setUserDao(IUserDao userDao) {
this.userDao = userDao;
}

public int deleteById(String id) {
int i = userDao.deleteById(id);
//测试事务
int j = 1/0;
return i;
}

public User get(String id) {
return userDao.get(id);
}

public int insert(User u) {
return userDao.insert(u);
}

public List<User> list() {
return userDao.list();
}

public int update(User u) {
return userDao.update(u);
}

}

重头

sqlMapConfig.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>

<typeAliases>
<typeAlias type="cn.itcast.mybatis.domain.User" alias="aliasesUser"></typeAlias>
</typeAliases>
<environments default="development">

<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/mybatisdb?characterEncoding=UTF-8"/>
<property name="username" value="root"/>
<property name="password" value="friends"/>
</dataSource>
</environment>
<!--         产品    可用于多个配置的 -->
<environment id="product">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/mybatisdb?characterEncoding=UTF-8"/>
<property name="username" value="root"/>
<property name="password" value="friends"/>
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="cn/itcast/mybatis/domain/User.xml"/>
</mappers>
</configuration>

spring-beans.xml

<?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/context http://www.springframework.org/schema/context/spring-context-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"> 
<!-- 数据源 -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost/mybatisdb?characterEncoding=utf-8"></property>
<property name="username" value="root"></property>
<property name="password" value="friends"></property>
</bean>

<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:sqlMapConfig.xml"></property>
<property name="dataSource" ref="dataSource"></property>

</bean>

<!-- 事务相关控制 -->
<bean name="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>

<!-- 通知 -->
<tx:advice id="tx"
transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="find*" read-only="true" />
<tx:method name="get*" read-only="true" />
<tx:method name="select*" read-only="true" />
</tx:attributes>
</tx:advice>

<aop:config>
<aop:pointcut id="pc" expression="execution(* cn.itcast.mybatis.service.*.*(..))" />
<!--把事务控制在Service层-->
<aop:advisor pointcut-ref="pc" advice-ref="tx" />
</aop:config>

<bean id="userDao" class="cn.itcast.mybatis.dao.UserDaoImpl">
<property name="sqlSessionFactory" ref="sessionFactory"></property>
</bean>

<bean id="userService" class="cn.itcast.mybatis.service.UserServiceImpl">
<property name="userDao" ref="userDao"></property>
</bean>
</beans>

测试

package test;

import java.util.List;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.itcast.mybatis.domain.User;
import cn.itcast.mybatis.service.IUserService;

public class TestSpringMybatis {

@Test
public void test(){
ApplicationContext ac = new ClassPathXmlApplicationContext("spring-beans.xml");
IUserService us = (IUserService) ac.getBean("userService");
List<User> users = us.list();
System.out.println(users.size());
}

@Test
public void testDelete(){
ApplicationContext ac = new ClassPathXmlApplicationContext("spring-beans.xml");
IUserService us = (IUserService) ac.getBean("userService");
us.deleteById("1");
}

}