mysql.driver=com.mysql.jdbc.Driver
mysql.url=jdbc:mysql://127.0.0.1:3306/ssm
mysql.username=root
mysql.password=admin
#定義初始連線數
mysql.initialSize=1
#定義最大連線數
mysql.maxActive=20
#定義最大空閒
mysql.maxIdle=20
#定義最小空閒
mysql.minIdle=1
#定義最長等待時間
mysql.maxWait=60000

<context:component-scan base-package
 
="com.win.ssm"/>
<context:property-placeholder location="classpath:jdbc.properties"/>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="${mysql.driver}"/>
    <property name="url" value="${mysql.url}"
 
/>
    <property name="username" value="${mysql.username}"/>
    <property name="password" value="${mysql.password}"/>
<!-- 初始化連結大小-->
<property name="initialSize" value="${mysql.initialSize}"/>
<!-- 連線池最大數量-->
<property name="maxActive" value="${mysql.maxActive}"/>
<!-- 連線池最大空閒-->
<property name="maxIdle" value="${mysql.maxIdle}"/>
<!-- 連線池最小空閒 -->
<property name="minIdle" value="${mysql.minIdle}"></property>
<!-- 獲取連線最大等待時間-->
<property name="maxWait" value="${mysql.maxWait}"/>
</bean>
<!-- spring與mybatis整合類 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
<!-- 查詢介面的別名 -->
<property name="typeAliasesPackage" value="com.win"/>
<!-- 自動掃描mapping.xml檔案-->
<property name="mapperLocations" value="classpath:/mapping/*.xml"/>
</bean>
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
    <constructor-arg index="0" ref="sqlSessionFactory" />
<!--<constructor-arg index="1" value="BATCH" />-->
</bean>
<!-- 掃描DAO介面 -->
<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.win.ssm.dao"/>
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<!-- 事務管理 -->
<bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"/>
</bean>

@Test
public void testInsertBatch2() throws Exception {
    long start = System.currentTimeMillis();
User user;
SqlSession sqlSession = sqlSessionTemplate.getSqlSessionFactory().openSession(false);
UserDao mapper = sqlSession.getMapper(UserDao.class);
    for (int i = 0; i < 500; i++) {
        user = new User();
user.setId("test" + i);
user.setName("name" + i);
user.setDelFlag("0");
mapper.insert(user);
}
    sqlSession.commit();
    long end = System.currentTimeMillis();
System.out.println("---------------" + (start - end) + "---------------");
}

<insert id="insert">
INSERT INTO t_user (id, name, del_flag)
          VALUES(#{id}, #{name}, #{delFlag})
</insert>

@Test
public void testInsertBatch2() throws Exception {
    long start = System.currentTimeMillis();
User user;
SqlSession sqlSession = sqlSessionTemplate.getSqlSessionFactory().openSession(ExecutorType.BATCH, false);//跟上述sql區別
UserDao mapper = sqlSession.getMapper(UserDao.class);
    for (int i = 0; i < 500; i++) {
        user = new User();
user.setId("test" + i);
user.setName("name" + i);
user.setDelFlag("0");
mapper.insert(user);
}
    sqlSession.commit();
    long end = System.currentTimeMillis();
System.out.println("---------------" + (start - end) + "---------------");
}

@Test
public void testInsertBatch() throws Exception {
    long start = System.currentTimeMillis();
List<User> list = new ArrayList<>();
User user;
    for (int i = 0; i < 10000; i++) {
        user = new User();
user.setId("test" + i);
user.setName("name" + i);
user.setDelFlag("0");
list.add(user);
}
    userService.insertBatch(list);
    long end = System.currentTimeMillis();
System.out.println("---------------" + (start - end) + "---------------");
}

<insert id="insertBatch">
INSERT INTO t_user
            (id, name, del_flag)
    VALUES
    <foreach collection ="list" item="user" separator =",">
(#{user.id}, #{user.name}, #{user.delFlag})
    </foreach >
</insert>

nested exception is com.mysql.jdbc.PacketTooBigException: Packet for query is too large (5677854 > 1048576).

You can change this value on the server by setting the max_allowed_packet' variable.