LI主题的文章列表，还有LI的技术要点_第8页

注解 javax.validation.constraints下的注解

@NotBlank,@NotNoll,@NotEmpty实体字段校验之间的区别简单的来说字符串用@NotBlank基本类型用@NotNoll集合类型@NotEmpty...

开发笔记 ·2023-10-20

available: expected at least 1 bean which qualifies as autowire candidate

available:expectedatleast1beanwhichqualifiesasautowirecandidate这个错误我也是找了半天,最后排查的时候发现是自己的实现类写错了,所以注入不进去.出现这个错误一般有四个方向排查查看接口实现类是否加入注解，如service、repository等查看spring...

开发笔记 ·2023-10-20

Reachability(判断网络是否连接)

类似于一个网络状况的探针。　　[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(reachabilityChanged:)name:kReachabilityChangedNotificationobject:nil];&nbs...

开发笔记 ·2023-10-12

ORA-48502: Invalid Command Line – Missing Required Elements

文档解释ORA-48502:InvalidCommandLine–MissingRequiredElementsCause:Missingrequiredcommandlinearguments.Action:Reviewthehelpmessageandsupplytherequiredarguments...

IT技术学习 ·2023-07-28

ORA-56722: I/O request limit exceeded – call aborted

文档解释ORA-56722:I/Orequestlimitexceeded–callabortedCause:TheResourceManagerSWITCH_IO_REQSlimitwasexceeded.Action:Reducethecomplexityoftheupdateorquery,orcon...

IT技术学习 ·2023-07-28

ORA-48161: invalid input for ADR instance id

文档解释ORA-48161:invalidinputforADRinstanceidCause:AninvalidinputwaspassedinfortheADRinstanceid.TheADRinstanceidiseitherNULLortoolongofastring.Action:ChecktheADRin...

IT技术学习 ·2023-07-28

ORA-54531: invalid orientation for element at element offset

文档解释ORA-54531:invalidorientationforelementatelementoffsetCause:Theorientationofthecurrentgeometrywasnotvalid.Action:Reversetheorientationofthegeometry.ORA-54531...

IT技术学习 ·2023-07-28

ORA-41689: invalid collection specification in the rule condition

文档解释ORA-41689:invalidcollectionspecificationintheruleconditionCause:Anattemptwasmadetoinsertaruleconditionwithinvalidcollectionelementspecification.Action:Corre...

IT技术学习 ·2023-07-28

ORA-64143: Can only share an existing XMLIndex table with an XMLTYPE column.

文档解释ORA-64143:CanonlyshareanexistingXMLIndextablewithanXMLTYPEcolumn.Cause:AnattemptwasmadetoshareatablewithoutanXMLTYPEcolumn.Action:DropthegroupcontainingtheX...

IT技术学习 ·2023-07-28

ORA-38471: ROWIDs for table aliases cannot be null

文档解释ORA-38471:ROWIDsfortablealiasescannotbenullCause:Anattemptwasmadetopassanullvalueforthetablealiasattributeinthedataitem,whichisnotpermitted.Action:Passavali...

IT技术学习 ·2023-07-28

ORA-44747: An XMLIndex with a structured component cannot be specified with ASYNC.

文档解释ORA-44747:AnXMLIndexwithastructuredcomponentcannotbespecifiedwithASYNC.Cause:AnattemptwasmadetospecifyASYNCparameterforanXMLIndexwithastructuredcomponent.Ac...

IT技术学习 ·2023-07-28

ORA-32043: recursive WITH clause needs an initialization branch

文档解释ORA-32043:recursiveWITHclauseneedsaninitializationbranchCause:AWITHclausequeryreferredtoitself(recursive)butdidnothaveabranchinaUNIONALLwithnoreferencestoit...

IT技术学习 ·2023-07-28

ORA-53213: cannot access DICOM data with invalid source type

文档解释ORA-53213:cannotaccessDICOMdatawithinvalidsourcetypeCause:AninvalidsourcetypewasstoredinthesourceattributeoftheORDDicomobject.Action:SeetheOracleMultimediad...

IT技术学习 ·2023-07-28

ORA-31037: Invalid XML attribute name string

文档解释ORA-31037:InvalidXMLattributenamestringCause:TheattributenameintheXMLdocumentdidnotmatchanythingintheassociatedschema.Action:Supplyonlyschema-definedorXMLst...

IT技术学习 ·2023-07-28

ORA-32039: recursive WITH clause must have column alias list

文档解释ORA-32039:recursiveWITHclausemusthavecolumnaliaslistCause:AWITHclausequeryreferredtoitself(recursive)butdidnothaveacolumnaliaslistspecifiedforit.Action:Adda...

IT技术学习 ·2023-07-28