mybatis 批量插数据application.properties引入
时间: 2023-11-25 22:49:31 浏览: 40
可以通过在mybatis配置文件中配置批量插入的语句来实现mybatis批量插入数据。具体步骤如下:
1.在application.properties文件中配置数据库相关信息和mybatis配置文件路径。
2.在mybatis配置文件中添加批量插入语句,例如:
```xml
<insert id="batchInsert" parameterType="java.util.List">
insert into user (name, age) values
<foreach collection="list" item="item" index="index" separator=",">
(#{item.name}, #{item.age})
</foreach>
</insert>
```
3.在dao层接口中定义批量插入方法,例如:
```java
public interface UserDao {
void batchInsert(List<User> userList);
}
```
4.在dao层接口的xml文件中实现批量插入方法,例如:
```xml
<mapper namespace="com.example.dao.UserDao">
<insert id="batchInsert" parameterType="java.util.List">
insert into user (name, age) values
<foreach collection="list" item="item" index="index" separator=",">
(#{item.name}, #{item.age})
</foreach>
</insert>
</mapper>
```
5.在service层中调用dao层的批量插入方法,例如:
```java
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
@Override
public void batchInsert(List<User> userList) {
userDao.batchInsert(userList);
}
}
```