Struts 2 File Upload Interceptor configuration problems
configuration, file-upload, interceptor, interceptorstack, struts2
Solution
Finally solved the entire puzzle! `struts.xml` and `MessageResource.properties` were correctly configured. The problem was `struts.multipart.maxSize` value. This value have to be bigger than the desired upload limit (5242880 in my app), so I set it as 10000000. If `struts.multipart.maxSize` value is equal or less then `fileUpload.maximumSize` the library used by Struts 2 to do the upload stops the upload process (and writes the error message) before the file upload interceptor has a chance to do its job.
Problem
I'm having two problems when trying to configure the Struts 2 File Upload Interceptor in my application. I want to change the parameter `maximumSize` (the default value is 2 MB, I need it to be 5 MB) and the message resource `struts.messages.error.file.too.large` (the app locale is pt_BR, so the message is in portuguese, not english). The app current configuration follows: struts.properties ``` struts.locale=pt_BR struts.custom.i18n.resources=MessageResources ``` struts.xml ``` <package name="default" namespace="/" extends="struts-default"> <interceptors> <interceptor name="login" class="br.com.probank.interceptor.LoginInterceptor"/> <interceptor-stack name="defaultLoginStack"> <interceptor-ref name="login" /> <interceptor-ref name="defaultStack"/> </interceptor-stack> </interceptors> <default-interceptor-ref name="defaultLoginStack" /> ... </package> ... <package name="proposta" namespace="/proposta" extends="default"> <action name="salvarAnexoProposta" method="salvarAnexoProposta" class="br.com.probank.action.AnexoPropostaAction"> <interceptor-ref name="defaultLoginStack"> <param name="fileUpload.maximumSize">5242880</param> </interceptor-ref> <result name="success">/jsp/listagemAnexosPropostaForm.jsp</result> <result name="input">/jsp/crudAnexoPropostaForm.jsp</result> <result name="error">/jsp/error.jsp</result> <result name="redirect" type="redirect">${redirectLink}</result> </action> </package> ``` MessageResources.properties ``` ... struts.messages.error.file.too.large=O tamanho do arquivo... ``` There is nothing special about my Action implementation and my JSP code. They follow the example found http://struts.apache.org/2.1.6/docs/file-upload-interceptor.html. When I try to upload a file with more than 5 MB the app shows the message "the request was rejected because its size (6229458) exceeds the configured maximum (2097152)" - the default File Upload message with the default maximumSize value. I try to put the message resource `struts.messages.error.file.too.large` in a struts-messages.properties but the message didn't change after that. What is the proper way to configure the File Upload Interceptor? I'm using Struts 2 2.1.7. Thanks in advance.