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SQL批处理

作者:互联网

allowMultiQueries=true 的使用:

 

配置

<?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>
<environments default="mysql">
<environment id="mysql">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<!--1.3配置连接池需要的参数-->
<property name="driver" value="com.mysql.cj.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/db1?allowMultiQueries=true&amp;serverTimezone=GMT%2B8"/>
<property name="username" value="root"/>
<property name="password" value="root"/>
</dataSource>
</environment>
</environments>

<mappers>
<mapper resource="com/xxxx/dao/ListenerDao.xml"/>
</mappers>
</configuration>

接口
public interface ListenerDao {

void createTable();

void deleteTable();
}



接口映射文件
<?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="com.midea.dao.ListenerDao">

<update id="createTable">
create table test1(id int primary key auto_increment,name varchar(20));
create table test2(id int primary key auto_increment,name varchar(20),birthday date,dept_id int);
</update>

<update id="deleteTable">
drop table test1;
drop table test2;
</update>

</mapper>



也可以在接口中使用@Update注解 省略了写接口映射文件


public interface ListenerDao {


Book findUserById(int id);

@Update("create table test1(id int primary key auto_increment,name varchar(20));\n" +
"create table test2(id int primary key auto_increment,name varchar(20),birthday date,dept_id int);")
void createTable();


@Update("drop table test1;\n" +
"drop table test2;")
void deleteTable();
}
注意SQL间 有 ;\n" 分开

标签:test1,test2,批处理,int,SQL,mybatis,table,id
来源: https://www.cnblogs.com/EthanLoveMath/p/16464517.html