Spring MVC 实体中List长度超过256报错问题解决_invalid property 'serviceareacodes[256]' of bean c-优快云博客

本文链接：https://blog.youkuaiyun.com/li246464/article/details/88528081

当Spring MVC实体中的List字段长度超过256时，会出现报错。通过在Controller中添加特定代码可以解决此问题，同时，如果表单中的日期格式传递到后台，还会引发额外的错误，需要额外处理。

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报错信息如下:

org.springframework.beans.InvalidPropertyException: Invalid property 'changeList[256]' of bean class [com.weichai.modules.performance.dto.PerformanceIndexForm]: Index of out of bounds in property path 'changeList[256]'; nested exception is java.lang.IndexOutOfBoundsException: Index: 256, Size: 256
    	at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:837)
    	at org.springframework.beans.BeanWrapperImpl.getNestedBeanWrapper(BeanWrapperImpl.java:572)
    	at org.springframework.beans.BeanWrapperImpl.getBeanWrapperForPropertyPath(BeanWrapperImpl.java:549)
    	at org.springframework.beans.BeanWrapperImpl.getBeanWrapperForPropertyPath(BeanWrapperImpl.java:550)
    	at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:917)
    	at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:95)
    	at org.springframework.validation.DataBinder.applyPropertyValues(DataBinder.java:750)
    	at org.springframework.validation.DataBinder.doBind(DataBinder.java:646)
    	at org.springframework.web.bind.WebDataBinder.doBind(WebDataBinder.java:189)
    	at org.springframework.web.bind.ServletRequestDataBinder.bind(ServletRequestDataBinder.java:106)
    	at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.bindRequestParameters(ServletModelAttributeMethodProcessor.java:150)
    	at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:110)
    	at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:78)
    	at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:162)
    	at org.springframework.web.method.support.Invo