如何在Struts 2中处理自定义拦截器异常

Question

如何在Struts 2中处理自定义拦截器异常？

org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: 
the request was rejected because its size (337867) exceeds the configured 
maximum (200)

Answer 1

将此常量设置为增加请求限制

<constant name="struts.multipart.maxSize" value="1000000" />

  

请记住，struts.multipart.maxSize是整个请求的大小限制，这意味着当您上传多个文件时，它们的大小总和必须低于struts.multipart.maxSize！

Answer 2

<global-exception-mappings>
  <exception-mapping exception="java.lang.NullPointerException" result="npe"/>
</global-exception-mappings>