MyBatis学习教程(六)-调用存储过程

create table p_user( id int primary key auto_increment, name varchar(),sex char()); 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= THENSELECT COUNT(*) FROM mybatis.p_user WHERE p_user.sex='女' INTO user_count;ELSESELECT 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 = ;CALL mybatis.ges_user_count(, @user_count);SELECT @user_count; 

<!-- 查询得到男性或女性的数量, 如果传入的是就女性否则是男性--><select id="getUserCount" parameterMap="getUserCountMap" statementType="CALLABLE">CALL mybatis.ges_user_count(?,?)</select><!--parameterMap.put("sexid", );parameterMap.put("usercount", -);--><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 Test {@Testpublic 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", );parameterMap.put("usercount", -);sqlSession.selectOne(statement, parameterMap);Integer result = parameterMap.get("usercount");System.out.println(result);sqlSession.close();}}