1 import java.sql.CallableStatement;
 2 import java.sql.Connection;
 3 import java.sql.DriverManager;
 4 import java.sql.Types;
 5
 6
 7
 8 /*
 9  * 对应的存储过程
10  DROP PROCEDURE IF EXISTS `pro_num_user`;
11 delimiter ;;
12 CREATE PROCEDURE `pro_num_user`(IN user_name varchar(10) ,OUT count_num INT)
13     READS SQL DATA
14 BEGIN
15     SELECT COUNT(*) INTO count_num FROM tab_user WHERE 'name'=user_name;
16 END
17  ;;
18 delimiter ;
19  */
20 public class Test {
21
22     public static final String DRIVER_CLASS = "com.mysql.jdbc.Driver";
23     public static final String URL = "jdbc:mysql://127.0.0.1:3306/test";
24     public static final String USERNAME = "root";
25     public static final String PASSWORD = "acbee";
26     public static void main(String[] args) throws Exception {
27         test1();
28         test2();
29     }
30
31     public static void test1() throws Exception
32     {
33         Class.forName(DRIVER_CLASS);
34         Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);
35         String sql = "{CALL pro_num_user(?,?)}"; //调用存储过程
36         CallableStatement cstm = connection.prepareCall(sql); //实例化对象cstm
37         cstm.setString(1, "myd"); //存储过程输入参数
38         //cstm.setInt(2, 2); // 存储过程输入参数
39         cstm.registerOutParameter(2, Types.INTEGER); // 设置返回值类型 即返回值
40         cstm.execute(); // 执行存储过程
41         System.out.println(cstm.getInt(2));
42         cstm.close();
43         connection.close();
44     }
45
46     public static void test2() throws Exception
47     {
48         Class.forName(DRIVER_CLASS);
49         Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);
50         String sql = "{CALL pro_number(?,?,?)}"; //调用存储过程
51         CallableStatement cstm = connection.prepareCall(sql); //实例化对象cstm
52         cstm.setInt(1, 2); // 存储过程输入参数
53         cstm.setInt(2, 2); // 存储过程输入参数
54         cstm.registerOutParameter(3, Types.INTEGER); // 设置返回值类型 即返回值
55         cstm.execute(); // 执行存储过程
56         System.out.println(cstm.getInt(3));
57         cstm.close();
58         connection.close();
59
60     }
61 }