Mybaits学习07_ 调用存储过程

Posted 2020-09-02 hylinux

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

1、创建表与存储过程

参数：IN `sex_id` int,OUT `user_count` int

 

2、创建表所对应的实体类

package nh.ui.automation.tools.Mybaits;

/**
 * 项目 ：UI自动化测试 Mybaits 类描述：
 * 
 * @author Eric
 * @date 2017年3月5日 nh.ui.automation.tools.Mybaits
 */
public class PUser {

    private int id;
    private String name;
    private String sex;

    /**
     * 
     */
    public PUser() {
        super();
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "PUser [id=" + id + ", name=" + name + ", sex=" + sex + "]";
    }

    /**
     * @param id
     * @param name
     * @param sex
     */
    public PUser(int id, String name, String sex) {
        super();
        this.id = id;
        this.name = name;
        this.sex = sex;
    }

    /**
     * @return the id
     */
    public int getId() {
        return id;
    }

    /**
     * @param id
     *            the id to set
     */
    public void setId(int id) {
        this.id = id;
    }

    /**
     * @return the name
     */
    public String getName() {
        return name;
    }

    /**
     * @param name
     *            the name to set
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * @return the sex
     */
    public String getSex() {
        return sex;
    }

    /**
     * @param sex
     *            the sex to set
     */
    public void setSex(String sex) {
        this.sex = sex;
    }

}

3、创建puserMapper文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="nh.ui.automation.tools.Mybaits.User.puserMapper">
    <select id="getCount" statementType="CALLABLE" parameterMap="getCountMap">
        CALL mybaits.ges_user_count(?,?)
    </select>
    <parameterMap type="java.util.Map" id="getCountMap">
        <parameter property="sex_id" mode="IN" jdbcType="INTEGER" />
        <parameter property="user_count" mode="OUT" jdbcType="INTEGER" />
    </parameterMap>
    <!-- 
        注意：此处定义的Map字段属性名必须与引用时一致
        Map<String, Integer> paramMap = new HashMap<String, Integer>();
        paramMap.put("sex_id", 0);
        paramMap.put("user_count", 0);
    
     -->
</mapper>

4、在Mybaits文件中注册puserMapper

’

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <properties resource="db.properties"></properties>

    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC" />
            <dataSource type="POOLED">
                <property name="driver" value="${db.driver}" />
                <property name="url" value="${db.url}" />
                <property name="username" value="${db.username}" />
                <property name="password" value="${db.password}" />
            </dataSource>
        </environment>
    </environments>

    <mappers>
        <mapper resource="Mappings/userMapper.xml" />
        <mapper resource="Mappings/orderMapper.xml" />
        <mapper resource="Mappings/employMapper.xml" />
        <mapper resource="Mappings/department2Mapper.xml" />
        <mapper resource="Mappings/userMapper2.xml" />
        <mapper class="nh.ui.automation.tools.mapper.UserMapper" />

    </mappers>
</configuration>

5、测试代码

package nh.ui.automation.tools.Mybaits;

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

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

/**
 * Hello world!
 *
 */
public class EmployeeTest {
	public static void main(String[] args) {
		/**
		 * 1,加载mybaits的配置文件 2,构建sqlsession工厂 3,创建能执行sql的会话 4,映射sql的标识字符串 5,执行sql
		 * 6,打印结果
		 */

		String myBaitsConifg = "Mybaits.xml";
		InputStream loadConfig = EmployeeTest.class.getClassLoader().getResourceAsStream(myBaitsConifg);

		SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(loadConfig);
		SqlSession sqlSession = sessionFactory.openSession(true);
		String statement = "nh.ui.automation.tools.Mybaits.User.puserMapper.getCount";
		Map<String, Integer> paramMap = new HashMap<String, Integer>();
		paramMap.put("sex_id", 1);
		paramMap.put("user_count", 0);

		sqlSession.selectOne(statement, paramMap);

		Integer integer = paramMap.get("user_count");
		System.out.println(integer);
	}
}

　6、查看结果

2017-03-05 14:36:58,774 [main] DEBUG [nh.ui.automation.tools.Mybaits.User.puserMapper.getCount] - ==>  Preparing: CALL mybaits.ges_user_count(?,?) 
2017-03-05 14:36:58,811 [main] DEBUG [nh.ui.automation.tools.Mybaits.User.puserMapper.getCount] - ==> Parameters: 1(Integer)
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