nested exception is java.lang.NumberFormatException: For input string: “null“]
null转换为Long类型异常1 报错原因2 解决方案1 报错原因Vue前端向后端传值时某个参数传的值为null,后端用Long类型接收,此时会报这个错误。org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errorsField erro
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1 报错原因
Vue前端向后端传值时某个参数传的值为null,后端用Long类型接收,此时会报这个错误。
org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 1 errors
Field error in object 'umsResource' on field 'id': rejected value [null]; codes [typeMismatch.umsResource.id,typeMismatch.id,typeMismatch.java.lang.Long,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [umsResource.id,id]; arguments []; default message [id]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'java.lang.Long' for property 'id'; nested exception is java.lang.NumberFormatException: For input string: "null"]
2 解决方案
把表单中id
的值由null
改为‘’
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