JDBC事务（一）

package cn.sasa.tran01;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class testJDBCTran {

    public static void main(String[] args) {
        Connection conn = null;
        PreparedStatement pstate = null;
        PreparedStatement pstate2 = null;
        try {
            //mysql的事务默认是自动执行的

            //注册驱动
            Class.forName("com.mysql.jdbc.Driver");

            //获得连接对象
            conn = DriverManager.getConnection("jdbc:mysql://192.168.0.207:3306/mydb", "root", "Console.Write21");

            //设置手动执行事务
            conn.setAutoCommit(false);

            //获得执行对象
            String sql = "insert into account (name,money) values ('aaaaaaaaaaaaaaaaaaa',200)";
            pstate = conn.prepareStatement(sql);
            //执行
            int rs = pstate.executeUpdate();

            String sql2 = "insert into account (name,money) values ('bb',300)";
            pstate2 = conn.prepareStatement(sql2);
            int rs2 = pstate2.executeUpdate();

            if(rs>0&&rs2>0) {
                conn.commit();//提交事务
                System.out.println("ok");
            }else {
                conn.rollback();//回滚事务
                System.out.println("-1");
            }

        }catch(Exception e) {
            try {
                conn.rollback();
                System.out.println("-2");
            } catch (SQLException e1) {
                e1.printStackTrace();
            }//回滚事务
        }finally {
            try {
                if(pstate !=null) pstate.close();
                if(pstate2 !=null) pstate2.close();
                if(conn !=null) conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }

}