springboot加mybatis如何向数据库中分批插入数据列表
时间: 2024-09-23 12:05:32 浏览: 31
SpringBoot +Mybatis +POI导入、导出Excel文件
Spring Boot结合MyBatis批量插入数据列表到数据库通常通过SqlSession对象的`insertAll()`方法来实现。首先,你需要在MyBatis的Mapper接口中定义一个处理大批量插入的映射方法:
```java
public interface YourMapper {
@Insert("INSERT INTO your_table (column1, column2) VALUES (?, ?)")
int[] batchInsert(List<YourEntity> entities);
}
```
这里假设`YourEntity`是你需要插入的数据模型,`your_table`是目标表名,并且列名和字段匹配。
然后,在你的Service或Repository层中,注入Mapper并使用它进行批量插入:
```java
@Service
public class YourService {
private final YourMapper yourMapper;
public YourService(YourMapper yourMapper) {
this.yourMapper = yourMapper;
}
public void insertBatch(List<YourEntity> dataList) {
try {
int[] result = yourMapper.batchInsert(dataList);
// 检查插入结果,如需处理可能出现的异常
if (result != null && result.length > 0) {
for (int inserted : result) {
System.out.println("Inserted " + inserted + " rows");
}
} else {
throw new DataAccessException("Failed to insert data.");
}
} catch (Exception e) {
log.error("Error inserting data", e);
}
}
}
```
阅读全文