MyBatis——调用存储过程

create table p_user(  
    id int primary key auto_increment,  
    name varchar(10),
    sex char(2)
); 

insert into p_user(name,sex) values(‘A‘,"男");  
insert into p_user(name,sex) values(‘B‘,"女");  
insert into p_user(name,sex) values(‘C‘,"男");  

-- 创建存储过程(查询得到男性或女性的数量, 如果传入的是0就女性否则是男性)
DELIMITER $
CREATE PROCEDURE mybatis.ges_user_count(IN sex_id INT, OUT user_count INT)
BEGIN  
IF sex_id=0 THEN
SELECT COUNT(*) FROM mybatis.p_user WHERE p_user.sex=‘女‘ INTO user_count;
ELSE
SELECT COUNT(*) FROM mybatis.p_user WHERE p_user.sex=‘男‘ INTO user_count;
END IF;
END 
$

-- 调用存储过程
DELIMITER ;
SET @user_count = 0;
CALL mybatis.ges_user_count(1, @user_count);
SELECT @user_count;

<!-- 
        查询得到男性或女性的数量, 如果传入的是0就女性否则是男性
     -->
    <select id="getUserCount" parameterMap="getUserCountMap" statementType="CALLABLE">
        CALL mybatis.ges_user_count(?,?)
    </select>
    
    <!--
        parameterMap.put("sexid", 0);
        parameterMap.put("usercount", -1);
     -->
    <parameterMap type="java.util.Map" id="getUserCountMap">
        <parameter property="sexid" mode="IN" jdbcType="INTEGER"/>
        <parameter property="usercount" mode="OUT" jdbcType="INTEGER"/>
    </parameterMap>

package me.gacl.test;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import me.gacl.custom.model.ConditionUser;
import me.gacl.domain.User;
import me.gacl.util.MyBatisUtil;
import org.apache.ibatis.session.SqlSession;
import org.junit.Test;

/**
 * @author gacl
 * 测试调用存储过程
 */
public class Test6 {
    
    @Test
    public void testGetUserCount(){
        SqlSession sqlSession = MyBatisUtil.getSqlSession();
        /**
         * 映射sql的标识字符串，
         * me.gacl.mapping.userMapper是userMapper.xml文件中mapper标签的namespace属性的值，
         * getUserCount是select标签的id属性值，通过select标签的id属性值就可以找到要执行的SQL
         */
        String statement = "me.gacl.mapping.userMapper.getUserCount";//映射sql的标识字符串
        Map<String, Integer> parameterMap = new HashMap<String, Integer>();
        parameterMap.put("sexid", 1);
        parameterMap.put("usercount", -1);
        sqlSession.selectOne(statement, parameterMap);
        Integer result = parameterMap.get("usercount");
        System.out.println(result);
        sqlSession.close();
    }
}