Resolved [org.springframework.web.method.annotation.ModelAttributeMethodProcessor$1: org.springframework.validation.BeanPropertyBindingResult: 4 errors<EOL>Field error in object 'order' on field 'order_id': rejected value [null]; codes [typeMismatch.order.order_id,typeMismatch.order_id,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [order.order_id,order_id]; arguments []; default message [order_id]]; default message [Failed to convert value of type 'null' to required type 'int'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [int] for value [null]; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type]<EOL>Field error in object 'order' on field 'phone': rejected value [null]; codes [typeMismatch.order.phone,typeMismatch.phone,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [order.phone,phone]; arguments []; default message [phone]]; default message [Failed to convert value of type 'null' to required type 'int'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [int] for value [null]; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type]<EOL>Field error in object 'order' on field 'buy': rejected value [null]; codes [typeMismatch.order.buy,typeMismatch.buy,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [order.buy,buy]; arguments []; default message [buy]]; default message [Failed to convert value of type 'null' to required type 'int'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [int] for value [null]; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type]<EOL>Field error in object 'order' on field 'total': rejected value [null]; codes [typeMismatch.order.total,typeMismatch.total,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [order.total,total]; arguments []; default message [total]]; default message [Failed to convert value of type 'null' to required type 'int'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [null] to type [int] for value [null]; nested excep
时间: 2024-04-27 17:23:21 浏览: 335
这段错误信息表明在订单管理系统中,有一个名为order的对象中的四个字段(order_id, phone, buy, total)未能成功转换为int类型,因为它们的值为null,而null值无法赋给原始类型(int)。因此,在处理这些字段之前,需要先确保它们都赋有适当的值。您可以通过在代码中添加一些空值检查或默认值来解决这个问题。另外,您还可以考虑使用Java类中的包装类型(Integer)来代替原始类型(int),因为它们可以接受null值并且在使用时会更加灵活。
相关问题
Resolved [org.springframework.web.method.annotation.MethodArgumentConversionNotSupportedException: Failed to convert value of type 'org.springframework.web.multipart.support.StandardMultipartHttpServletRequest$StandardMultipartFile' to required type 'org.springframework.web.multipart.commons.CommonsMultipartFile'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'org.springframework.web.multipart.support.StandardMultipartHttpServletRequest$StandardMultipartFile' to required type 'org.springframework.web.multipart.commons.CommonsMultipartFile': no matching editors or conversion strategy found]
这是一个 Spring 框架中的异常错误,表示在请求中的文件上传过程中,类型转换失败。具体来说,是将类型为 `org.springframework.web.multipart.support.StandardMultipartHttpServletRequest$StandardMultipartFile` 的对象转换为类型为 `org.springframework.web.multipart.commons.CommonsMultipartFile` 的对象时失败了。错误信息中指出没有匹配的编辑器或转换策略。
解决这个问题的方法是,确保在代码中使用的文件上传组件是 `org.springframework.web.multipart.commons.CommonsMultipartFile` 类型的。如果使用的是其他类型的上传组件,需要进行类型转换或者更改上传组件的类型。另外,还需要确保上传的文件符合要求,例如文件大小、文件类型等。
Resolved [org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 2 errors Field error in object 'results' on field 'farmer_id': rejected value []; codes [typeMismatch.results.farmer_id,typeMismatch.farmer_id,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [results.farmer_id,farmer_id]; arguments []; default message [farmer_id]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'int' for property 'farmer_id'; nested exception is java.lang.NumberFormatException: For input string: ""] Field error in object 'results' on field 'zone_id': rejected value []; codes [typeMismatch.results.zone_id,typeMismatch.zone_id,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [results.zone_id,zone_id]; arguments []; default message [zone_id]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'int' for property 'zone_id'; nested exception is java.lang.NumberFormatException: For input string: ""]] 2023-06-10 11:49:06.814 WARN 20380 --- [nio-8080-exec-2] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 2 errors
这是一个 Spring MVC 框架的数据绑定异常,和之前的异常信息一样。这个异常信息说明在绑定客户端传递的数据到 Java 对象时,发生了数据类型不匹配或数据格式错误的情况,导致数据绑定失败。具体来说,这个异常信息指出了在绑定 'farmer_id' 和 'zone_id' 两个字段时,客户端传递的值无法转换为 int 类型,从而导致了数据绑定失败。
解决这个异常的方法和之前一样,可以检查客户端传递的数据是否符合要求,或者在 Java 对象中将对应的字段改为 String 类型。另外,也可以在 Spring MVC 的配置文件中配置自定义的数据绑定规则和异常处理方式来处理这种情况。
阅读全文