MyBatis动态sql_foreach下foreach批量插入两种方式

MyBatis动态sql_foreach下foreach批量插入两种方式

 

EmployeeMapperDynamicSQL.java

 

package com.cn.mybatis.dao;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.cn.zhu.bean.Employee;

public interface  EmployeeMapperDynamicSQL {
		
	public void addEmps(@Param("emps")List<Employee> emps);
}

EmployeeMapperDynamicSQL.xml （两种批量保存方式）

 

 

 

 

<?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="com.cn.mybatis.dao.EmployeeMapperDynamicSQL">
  
	<!-- 批量保存 -->
	<!-- public void addEmps(@Param("emps")List<Employee> emps); --><!--
	<insert id="addEmps">
	   insert into tbl_employee(last_name,email,gender,d_id)
	   values 
	   <foreach collection="emps" item="emp" separator=",">
	     (#{emp.lastName},#{emp.email},#{emp.gender},#{emp.dept.id})
	   </foreach>	 
	</insert>
	-->
	<insert id="addEmps">
	   <foreach collection="emps" item="emp" separator=";">
	  	 insert into tbl_employee(last_name,email,gender,d_id)
	   values(#{emp.lastName},#{emp.email},#{emp.gender},#{emp.dept.id})
	   </foreach>
	</insert>
</mapper>

 

 

 

这种保存方式（必须在mysql中开启，一次执行多条语句）

 

<insert id="addEmps">
	   <foreach collection="emps" item="emp" separator=";">
	  	 insert into tbl_employee(last_name,email,gender,d_id)
	   values(#{emp.lastName},#{emp.email},#{emp.gender},#{emp.dept.id})
	   </foreach>
	</insert>

在资源文件这里加入这条语句

 

dbconfig.properties

 

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis?allowMultiQueries=true
jdbc.username=root
jdbc.password=root

测试方法

 

 

@Test
	public void testBatchSave() throws Exception{
		SqlSessionFactory sqlSessionFactory = getSqlSessionFactory();
	    SqlSession openSession = sqlSessionFactory.openSession();
	    try {
	    	EmployeeMapperDynamicSQL mapper = openSession.getMapper(EmployeeMapperDynamicSQL.class);
	        List<Employee>  	emps=new ArrayList<Employee>();
	        emps.add(new Employee(null, "小王", "小@qq.com", "1",new Department(1)));
	        emps.add(new Employee(null, "张三", "张三@qq.com", "0",new Department(1)));
	        mapper.addEmps(emps);
	        openSession.commit();
	    } catch (Exception e) {
			// TODO: handle exception
	    	openSession.close();
	    	e.printStackTrace();
		}
	}

测试结果

 

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