AOP中环绕通知的书写和配置

package com.hope.utils;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.sql.SQLException;

/**
 * @author newcityman
 * @date 2019/11/21 - 20:52
 */
@Component("txManager")
@Aspect
public class TransactionManager {
   @Autowired
    private  ConnectionUtils connectionUtils;
   @Pointcut("execution(* com.hope.service.impl.*.*(..))")
    private void pt(){ }

    /**
     * 开启事务
     */
    public void beainTransaction(){
        try {
            connectionUtils.getThreadConnection().setAutoCommit(false);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    /**
     * 提交事务
     */
    public void commit(){
        try {
            connectionUtils.getThreadConnection().commit();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    /**
     * 事务回滚
     */
    public void rollback(){
        try {
            connectionUtils.getThreadConnection().rollback();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    /**
     * 开启事务
     */
    public void release(){
        try {
            connectionUtils.getThreadConnection().close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    @Around("pt()")
    public Object aroundAdvice(ProceedingJoinPoint pjp){
       Object rtValue=null;
        try {
            //1、获取参数
            Object[] args = pjp.getArgs();
            //2、开启事务
            this.beainTransaction();
            //3、执行方法
            rtValue=pjp.proceed(args);
            //4、提交事务
            this.commit();
            //5、返回结果
            return  rtValue;
        } catch (Throwable e) {
            //6、回滚事务
            this.rollback();
            throw  new RuntimeException("事务提交有误，请联系管理员");
        } finally {
            //7、释放资源
            this.release();
        }

    }

<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">
   
 <!--配置spring扫描包-->
    <context:component-scan base-package="com.hope"/>

    <!--配置QueryRunner-->
    <bean id="runner" class="org.apache.commons.dbutils.QueryRunner" scope="prototype">
    </bean>

    <!-- 配置数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!--连接数据库的必备信息-->
        <property name="driverClass" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/easy"/>
        <property name="user" value="root"/>
        <property name="password" value="123"/>
    </bean>

    <!--开启spring对注解AOP的支持-->
    <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
</beans>

}