Spring( 三) 事务

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 JDBCTemplate

测试类

package com.hrh.a;

import com.hrh.pojo.Book;
import org.springframework.jdbc.core.simple.ParameterizedBeanPropertyRowMapper;
import org.springframework.jdbc.core.support.JdbcDaoSupport;

import java.util.List;

public class BookDao extends JdbcDaoSupport{

    public void insert(Book book){
        String sql="insert into book (id,name,price)values(null,?,?);";
        Object[] params={book.getName(),book.getPrice()};
        super.getJdbcTemplate().update(sql,params);
    }

    public void update(Book book){
        String sql="update book set name=?, price=? where id=?";
        Object[] param={book.getName(),book.getPrice(),book.getId()};
        super.getJdbcTemplate().update(sql,param);
    }

    public void delete(Book book){
        String sql="delete from book where id=?";
        super.getJdbcTemplate().update(sql,book.getId());
    }

    public String queryById(int id){
        String sql="select name from book where id=?;";
        return super.getJdbcTemplate().queryForObject(sql,String.class,id);
    }

    public int queryCount(){
        String sql="select count(*) from book";
        return  super.getJdbcTemplate().queryForObject(sql,Integer.class);
    }

    public Book queryBookById(int id){
        String sql="select * from book where id=?;";
        Book book = super.getJdbcTemplate().queryForObject(sql, ParameterizedBeanPropertyRowMapper.newInstance(Book.class), id);
        return book;
    }

    public List<Book> queryAll(){
        String sql="select * from book";
        List<Book> bookList = super.getJdbcTemplate().query(sql, ParameterizedBeanPropertyRowMapper.newInstance(Book.class));
        return bookList;

    }


}

 xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context.xsd
                        http://www.springframework.org/schema/tx
                        http://www.springframework.org/schema/tx/spring-tx.xsd
                        http://www.springframework.org/schema/aop
                        http://www.springframework.org/schema/aop/spring-aop.xsd
">

    <context:property-placeholder location="classpath:jdbc.properties"/>



    <!--spring的jdbc-->
    <bean id="springJDBC" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql:///spring_day03"/>
        <property name="username" value="root"/>
        <property name="password" value="123"/>
    </bean>

    <!--apache的dbcp-->
    <bean id="DBCP" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql:///spring_day03"/>
        <property name="username" value="root"/>
        <property name="password" value="123"/>
    </bean>

    <!--c3p0-->
    <bean id="c3p0" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClassName}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!--JDBC模板-->
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="c3p0"/>
    </bean>

    <bean id="bookDao" class="com.hrh.a.BookDao2">
        <property name="dataSource" ref="c3p0"/>
    </bean>


</beans>

 事务管理 XML版

Dao和Service

package com.hrh.dao;

import org.springframework.jdbc.core.support.JdbcDaoSupport;

public class AccountDao extends JdbcDaoSupport{

    public void in(String in,double money){
        String sql="update account set money=money+? where name=?";
        super.getJdbcTemplate().update(sql,money,in);
    }
    public void out(String out,double money){
        String sql="update account set money=money-? where name=?";
        super.getJdbcTemplate().update(sql,money,out);
    }

}

package com.hrh.service;

import com.hrh.dao.AccountDao;

public class AccountService {

    private AccountDao accountDao;

    public void setAccountDao(AccountDao accountDao){
        this.accountDao=accountDao;
    }

    public void transfer(String in,String out,double money){

        accountDao.out(out,money);

        int a=1/0;

        accountDao.in(in,money);

    }

}

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


    <context:property-placeholder location="classpath:jdbc.properties"/>

    <bean id="c3p0" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClassName}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <bean id="accountDao" class="com.hrh.dao.AccountDao">
        <property name="dataSource" ref="c3p0"/>
    </bean>
    <bean id="accountService" class="com.hrh.service.AccountService">
        <property name="accountDao" ref="accountDao"/>
    </bean>

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="c3p0"/>
    </bean>
    <tx:advice id="myAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="transfer"/>
        </tx:attributes>
    </tx:advice>
    <aop:config proxy-target-class="false">
        <aop:advisor advice-ref="myAdvice" pointcut="bean(*Service)"/>
    </aop:config>


</beans>

 测试

package com.hrh.service;

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 static org.junit.Assert.*;


@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class AccountServiceTest {

    @Autowired
    private AccountService accountService;
    @Test
    public void transfer() throws Exception {
        accountService.transfer("aaa","bbb",100);

    }

}

 事务管理 注解版

Dao和Service

package com.hrh.dao;

import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.stereotype.Repository;

@Repository
public class AccountDao extends JdbcDaoSupport{

    public void out(String out,double money){
        String sql="update account set money=money-? where name=?";
        super.getJdbcTemplate().update(sql,money,out);
    }
    public void in(String in,double money){
        String sql="update account set money=money+? where name=?";
        super.getJdbcTemplate().update(sql,money,in);
    }
}

package com.hrh.service;

import com.hrh.dao.AccountDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class AccountService {

    @Autowired
    private AccountDao accountDao;

    @Transactional
    public void transfer(String in,String out,double money){
        accountDao.in(in,money);

        //int a=1/0;

        accountDao.out(out,money);
    }

}

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:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <context:property-placeholder location="classpath:jdbc.properties"/>

    <bean id="c3p0" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClassName}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <bean id="accountDao" class="com.hrh.dao.AccountDao">
        <property name="dataSource" ref="c3p0"/>
    </bean>

    <context:component-scan base-package="com.hrh"/>
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="c3p0"/>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager"/>



</beans>

测试

package com.hrh.service;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import static org.junit.Assert.*;


@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class AccountServiceTest {

    @Value("#{accountService}")
    private AccountService accountService;

    @Test
    public void transfer() throws Exception {

        accountService.transfer("aaa","bbb",200);

    }

}

Spring和mybatis的整合

Mapper和Service

package com.hrh.mapper;

import org.apache.ibatis.annotations.Param;

public interface AccountMapper {
    
    //入账
    public void in(@Param("name") String name, @Param("money") double money);
    
    //出账
    public void out(@Param("name") String name, @Param("money") double money);
}

package com.hrh.service;

import com.hrh.mapper.AccountMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class AccountService {

    @Autowired
    private AccountMapper accountMapper;

    @Transactional //给方法添加事务
    public void transfer(String inName,String outName,double money){
        accountMapper.in(inName,money);

        //int a=1/0;

        accountMapper.out(outName,money);
    }

}

mapper.xml

<?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.hrh.mapper.AccountMapper">

    <update id="in">
        update account set money=money+#{money} where name=#{name};
    </update>

    <update id="out">
        update account set money=money-#{money} where name=#{name};
    </update>

</mapper>

mybatis-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>
    
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        <setting name="lazyLoadingEnabled" value="true"/>
        <setting name="aggressiveLazyLoading" value="false"/>
        <setting name="autoMappingBehavior" value="FULL"/>
    </settings>

</configuration>

applicationContext.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:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--导入jdbc配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    
    <!--配置连接池-->
    <bean id="c3p0" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClassName}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!--注解扫描包-->
    <context:component-scan base-package="com.hrh"/>

    <!--扫描mapper包-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com/hrh/*"/>
    </bean>
    
    <!--mybatis的sqlsessionFactory放到IOC容器 并进行配置-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="c3p0"/>
        <property name="typeAliasesPackage" value="com.hrh"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>
    
    <!--配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="c3p0"/>
    </bean>
    <!--注册事务驱动-->
    <tx:annotation-driven transaction-manager="transactionManager"/>


</beans>