事务管理模型（银行转账）

package cn.itcast.jdbc;import cn.itcast.util.JDBCUtils;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.SQLException;/** * @author newcityman * @date 2019/8/15 - 23:39 * 演示事务 */public class JDBCDemo09 {    public static void main(String[] args) {        Connection conn = null;        PreparedStatement stmt1=null;        PreparedStatement stmt2=null;        try {//            1、获取连接            conn = JDBCUtils.getConnection();//            2、开启事务            conn.setAutoCommit(false);            String sql1="update account set balance =balance-? where id=?";            String sql2="update account set balance =balance+? where id=?";            stmt1 = conn.prepareStatement(sql1);            stmt2 = conn.prepareStatement(sql2);            stmt1.setDouble(1,500);            stmt1.setInt(2,1);            stmt2.setDouble(1,500);            stmt2.setInt(2,2);            stmt1.executeUpdate();//            int i=1/0;            stmt2.executeUpdate();            conn.commit();        } catch (SQLException e) {            e.printStackTrace();            try {                conn.rollback();            } catch (SQLException e1) {                e1.printStackTrace();            }        }    }}

来源：https://www.cnblogs.com/newcityboy/p/11361321.html