SpringBoot项目，因Integer和int的定义类型造成的错误

[2019-08-01 17:27:59.209][http-nio-8080-exec-1][WARN][org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver][197]:Resolved [org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errors

Field error in object 'sysDepartment' on field 'sSort': rejected value []; codes [typeMismatch.sysDepartment.sSort,typeMismatch.sSort,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [sysDepartment.sSort,sSort]; arguments []; default message [sSort]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'int' for property 'sSort'; nested exception is java.lang.NumberFormatException: For input string: ""]]

[2019-08-01 17:27:59.209][http-nio-8080-exec-1][WARN][org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver][197]:Resolved [org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errors

Field error in object 'sysDepartment' on field 'sSort': rejected value []; codes [typeMismatch.sysDepartment.sSort,typeMismatch.sSort,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [sysDepartment.sSort,sSort]; arguments []; default message [sSort]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'int' for property 'sSort'; nested exception is java.lang.NumberFormatException: For input string: ""]]

[2019-08-01 17:27:59.225][http-nio-8080-exec-1][INFO][com.cmdi.manage.web.error.ErrorHandlerController][82]:统一异常处理【com.cmdi.manage.web.error.ErrorHandlerController.error】text/html=普通请求：request=org.apache.catalina.core.ApplicationHttpRequest@6468e1fa

[2019-08-01 17:27:59.225][http-nio-8080-exec-1][INFO][com.cmdi.manage.web.error.ErrorHandlerController][87]:统一异常处理【com.cmdi.manage.web.error.ErrorHandlerController.error】统一异常处理：model={timestamp=Thu Aug 01 17:27:59 CST 2019, status=400, error=Bad Request, errors=[Field error in object 'sysDepartment' on field 'sSort': rejected value []; codes [typeMismatch.sysDepartment.sSort,typeMismatch.sSort,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [sysDepartment.sSort,sSort]; arguments []; default message [sSort]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'int' for property 'sSort'; nested exception is java.lang.NumberFormatException: For input string: ""]], message=Validation failed for object='sysDepartment'. Error count: 1, path=/department/setDepartment}

[2019-08-01 17:27:59.226][http-nio-8080-exec-1][DEBUG][com.cmdi.manage.web.error.ErrorHandlerController][91]:统一异常处理【com.cmdi.manage.web.error.ErrorHandlerController.error】统一异常处理!错误状态码httpStatus：400 BAD_REQUEST

[2019-08-01 17:27:59.226][http-nio-8080-exec-1][INFO][com.cmdi.manage.web.error.ErrorHandlerController][99]:统一异常处理【com.cmdi.manage.web.error.ErrorHandlerController.error】统一异常处理!错误信息result：Result [status=-1, message=UnknowError, data=未知错误]

 

看错误信息，是提交某信息时，sSort字段由于没有输入任何数值，造成提交Controller时字段映射出错，因没有填写任何值，而sSort为整型，定义成int，于是空字符串无法转换成int的缺省值，于是出现错误。

修改实体类，sSort的类型修改成Integer，问题解决