1. 创建存储过程

建立一个MySQL的存储过程 add_pro

复制代码 代码如下:

delimiter //

drop procedure add_pro //

create procedure add_pro(a int , b int , out sum int )

begin

set sum = a * b;

end;

//

2. 调用存储过程

复制代码 代码如下:

package com.zhanggaosong;

import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.Types;

public class CallableStatementTest {

public static final String DRIVER_CLASS = "com.mysql.jdbc.Driver";

public static final String URL = "jdbc:mysql://127.0.0.1:3306/test";

public static final String USERNAME = "root";

public static final String PASSWORD = "123456";

public static void main(String[] args) throws Exception {

Class.forName(DRIVER_CLASS);

Connection connection = DriverManager.getConnection(URL, USERNAME,

PASSWORD);

String sql = "{CALL add_pro(?,?,?)}"; //调用存储过程

CallableStatement cstm = connection.prepareCall(sql); //实例化对象cstm

cstm.setInt(1, 122);

cstm.setInt(2, 2); //

cstm.registerOutParameter(3, Types.INTEGER); // 设置返回值类型

cstm.execute(); // 执行存储过程

System.out.println(cstm.getInt(3));

cstm.close();

connection.close();

}

}