Hello, I've been trying to set up a form to upload a .txt file to the server, and met a curious exception doing so. The exception implies Struts expects the setter method to use a String array instead of a java.io.File. Not that it would have been acceptable, but adding a setter using a string array does not change anything (same exception stack). The action method itself is never reached, since the exception is seemingly thrown during the ParametersInterceptor.doIntercept() method.
I had a similar exception a couple of months ago, due to conversion problems, since then solved by overriding Number and Date converters. It is probably just a coincidence though - I can't see why type conversion would relate here. Here are some informations regarding the context. [Form] <s:form action="entreprise_charger_fichier" method="POST" enctype="multipart/form-data"> <s:file name="upload" label="Parcourir" accept="text/plain" /> <s:submit value="Valider" /> </s:form> [Action declaration in struts.xml] - nothing fancy here <action name="entreprise_charger_fichier" class="fr.insee.resane.pro.ihm.controleur.actions.DossiersEntrepriseAction" method="chargerFichier"> <result name="input" type="redirectAction">entreprise</result> <result type="redirectAction">entreprise</result> </action> [Miscellaneous information] Interceptor stack is the default stack, with a couple custom interceptors (the request goes through one, but the others aren't reached). The action class (DossiersEntrepriseAction) does have a field named "upload", which is a java.io.File (as seen here : http://struts.apache.org/2.3.8/docs/file-upload.html). The getter and setter methods exist, but obviously they use or return a File, not a String array. Commons-IO and Commons-FileUpload are in the classpath, fetched as transitive dependencies of the struts-core-2.3.8 artifact. The problem also appears with Struts 2.3.7. [Stack trace] - I trimmed it a bit but it's still not that edible, sorry ognl.MethodFailedException: Method "setUpload" failed for object fr.insee.resane.pro.ihm.controleur.actions.DossiersEntrepriseAction@1c803ae [java.lang.NoSuchMethodException: fr.insee.resane.pro.ihm.controleur.actions.DossiersEntrepriseAction.setUpload([Ljava.lang.String;)] at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1246) at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1494) at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85) at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162) at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27) at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332) at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:78) at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332) at ognl.ASTProperty.setValueBody(ASTProperty.java:127) at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220) at ognl.SimpleNode.setValue(SimpleNode.java:301) at ognl.Ognl.setValue(Ognl.java:737) at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:218) at com.opensymphony.xwork2.ognl.OgnlValueStack.trySetValue(OgnlValueStack.java:187) at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:174) at com.opensymphony.xwork2.ognl.OgnlValueStack.setParameter(OgnlValueStack.java:152) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:318) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:230) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:238) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) [INTERCEPTORS IN THE DEFAULT STACK KICK IN] [SERVER RELATED STUFF, CUSTOM INTERCEPTOR] It is possible I missed something when setting up my classes/action, but I can't find anything when double-checking. At any rate, this doesn't explain why Struts (or OGNL) is asking for a String[] at that point. I understand that strings are the standard way to transfer data from a browser, but I can't see how it could apply to file uploading. Thank you in advance for your input, PL --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
