要想批量插入，首先要知道forEach标签:

foreach的主要用在构建in条件中，它可以在SQL语句中进行迭代一个集合。

foreach元素的属性主要有 item，index，collection，open，separator，close。

item表示集合中每一个元素进行迭代时的别名，index指定一个名字，用于表示在迭代过程中，每次迭代到的位置，open表示该语句以什么开始，separator表示在每次进行迭代之间以什么符号作为分隔 符，close表示以什么结束，在使用foreach的时候最关键的也是最容易出错的就是collection属性，该属性是必须指定的，但是在不同情况 下，该属性的值是不一样的，主要有一下3种情况：

1.如果传入的是单参数且参数类型是一个List的时候，collection属性值为list

2.如果传入的是单参数且参数类型是一个array数组的时候，collection的属性值为array

3.如果传入的参数是多个的时候，我们就需要把它们封装成一个Map了，当然单参数也可以封装成map

PersonDaoImpl

/**
 * Created by 李柏霖
 * 2020/10/15 11:13
 */

package com.lbl.dao;

import com.lbl.domain.Person;

import java.util.List;

public interface IPersonDao {
    void savePersonList(List<Person> person);
}

IPersonService

/**
 * Created by 李柏霖
 * 2020/10/15 11:07
 */

package com.lbl.service;

import com.lbl.domain.Person;

import java.util.List;

public interface IPersonService {
    void savePersonList(List<Person> person);
}

IPersonDao.xml

<?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.lbl.dao.IPersonDao">
    <insert id="savePersonList" parameterType="list">
        insert into person(name,money) values
        <foreach collection="list" index="index" item="Person" open="" close=""  separator=",">
            (#{Person.name},#{Person.money})
        </foreach>
    </insert>
</mapper>

不写open="" close=""进而的参数。

在(#{Person.name},#{Person.money})参数外加上()

就可以达到(?,?),(?,?),(?,?)的效果

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd
     http://www.springframework.org/schema/aop
      https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--   设置扫描包，包下设置注解@Service @Repository @Component @AutoWried-->
    <context:component-scan base-package="com.lbl">
        <!--    由于springmvc的controller是由springmvc来扫描，需要将controller排除在外-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 四大信息-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="jdbc:mysql://47.115.79.211:3308/ssm"></property>
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="user" value="root"></property>
        <property name="password" value="admin123"></property>
    </bean>
    <!-- session工厂-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- com.wzx.domain.Person  person-->
        <property name="typeAliasesPackage" value="com.lbl.domain"/>
    </bean>
    <!-- IPersonDao.xml  IPersonDao.java-->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.lbl.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>


    <!--配置Spring框架声明式事务管理-->
    <!--配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*" isolation="DEFAULT"/>
        </tx:attributes>
    </tx:advice>

    <!--配置AOP增强-->
    <aop:config>
        <aop:pointcut id="service" expression="execution(* com.lbl.service.impl.*ServiceImpl.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="service"/>
    </aop:config>


</beans>

log4j.properties

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE

# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE

# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=F:/ssmTest/log4j/ssm2.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

transactionTest

/**
 * Created by 李柏霖
 * 2020/10/16 11:22
 */

package com.lbl.transaction;

import com.lbl.domain.Person;
import com.lbl.service.IPersonService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.util.ArrayList;
import java.util.List;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class transactionTest {
    @Autowired
    IPersonService service;
    @Test
    public void test03(){
        List<Person> personList = new ArrayList<>();
        personList.add(new Person("jack",100.00));
        personList.add(new Person("rose",200.00));
        personList.add(new Person("tony",300.00));
        service.savePersonList(personList);

    }

}

sql执行结果：

使用批量插入执行的SQL语句应该等价于：

insert into person(name,money) values (?,?) , (?,?) , (?,?)