踩坑系列—mybatis查询报错java.lang.IndexOutOfBoundsException

港控/mmm° 2022-10-09 00:44 505阅读 0赞

sql单独执行正确，但是mybatis查询报错，部分错误信息如下：

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:  
\#\#\#Error querying database. Cause: java.lang.IndexOutOfBoundsException: Index: 6, Size: 6  
\#\#\#The error may involve com.xxx.persistence.mapper.XXXMapper.countxxxQty  
\#\#\#The error occurred while handling results  
\#\#\#SQL: SELECT D.WAREHOUSE\_ID, D.SKU\_ID, D.EXPECTED\_QTY\_NUM, D.NAME, D.OPER，D.OPER\_TIME FROM do\_header D WHERE D .do\_type = 100 and D.sku\_id in ( ? , ? , ? , ? )  
\#\#\#Cause: **`java.lang.IndexOutOfBoundsException: Index: 6, Size: 6`**  
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:92)  
at org.mybatis.spring.SqlSessionTemplate S q l S e s s i o n I n t e r c e p t o r . i n v o k e ( S q l S e s s i o n T e m p l a t e . j a v a : 440 ) a t c o m . s u n . p r o x y . SqlSessionInterceptor.invoke(SqlSessionTemplate.java:440) at com.sun.proxy. SqlSessionInterceptor.invoke(SqlSessionTemplate.java:440)atcom.sun.proxy.Proxy106.selectList(Unknown Source)  
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:223)  
at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:147)  
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:80)  
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:93)  
at com.sun.proxy.$Proxy241.countSkuQtyForCalculate(Unknown Source)

原因：  
mapper中查询结果resultMap对应的DoxxxDto使用了`lombok注解，使用有误导致的`。报错时的注解：  
@Data  
@Builder  
public class DoxxxDto\{  
private xxx1;  
private xxx2;  
private xxx3;  
private xxx4;  
private xxx5;  
private xxx6;  
private xxx7;  
\}

没有构造函数，将查询结果转换成javebean的时候出了问题，报错中的6是因为查询了6列。加上构造函数的注解即可。如下：  
@Data  
@Builder  
`@NoArgsConstructor`  
`@AllArgsConstructor`  
public class DoxxxDto\{  
private xxx1;  
private xxx2;  
private xxx3;  
private xxx4;  
private xxx5;  
private xxx6;  
private xxx7;  
\}

参考博客地址：https://blog.csdn.net/qq\_37186947/article/details/102160260