Discussion :

[charles888]

Boinjour à tous,

Alors voila j'ai une liste de fichier et lorsque l'utilisateur clique sur le lien il doit pouvoir télécharger le fichier.
Voici mon action :

Code :

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public class downloadAction extends Action {
 
	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) throws Exception {
		String resultat = "error";
 
		String idFile = ((DownloadForm) form).getIdFileDll();
		String idUrl = ((DownloadForm) form).getIdUrlDll();
		String type = ((DownloadForm) form).getType();
		Fichier fichier = new Fichier();
		String filename = fichier.findNameFile(idFile);
		res.setContentType("application/download");
		res.setHeader("Content-Disposition", "attachment;filename=\"" + filename + "\"");
 
		ServletOutputStream out = res.getOutputStream();
		File file = null;
		BufferedInputStream from = null;
 
		try {
			String path = getServlet().getServletContext().getRealPath("");
			path = new File(path).getParentFile().getParentFile().getParentFile().getParentFile().getParentFile().getParent();
			path = path+File.separator+"docs"+File.separator+type+File.separator+idUrl+File.separator+filename;
			file = new File(path);
			res.setContentLength((int) file.length());
 
			int bufferSize = 64 * 1024;
			long time = System.currentTimeMillis();
 
			try {
				from = new BufferedInputStream(new FileInputStream(file), bufferSize * 2);
				byte[] bufferFile = new byte[bufferSize];
				for (int i = 0; ; i++) {
					int len = from.read(bufferFile); 
					if (len < 0) break; 
						out.write(bufferFile, 0, len);
				}
				out.flush();
			} finally { 
				try { 
					from.close();
				} catch (Exception e) { 
					resultat = "error";
				} 
				try { 
					out.close();
				} catch (Exception e) {
					resultat = "error";
				} 
			} 
 
			time = (System.currentTimeMillis() - time) / 1000; 
			// seconds download 
			double kb = (file.length() * 1.0 / 1024);
 
			if (file != null) 
				file.delete();
			resultat = "succes";
		} catch (Exception e) {
			resultat = "error";
		} finally { 
			try { 
				file.delete();
			} catch (Exception ex) {
				resultat = "error";
			}
		}
		return mapping.findForward(resultat);
	}
}

Le problème que j'ai c'est que cela fonctionne parfaitement (hé oui) mais j'ai plein de message d'erreur dans la console ce qui n'est pas super :/

Code :

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10 avr. 2012 17:02:42 org.apache.catalina.core.ApplicationDispatcher invoke
GRAVE: "Servlet.service()" pour la servlet jsp a lancé une exception
java.lang.IllegalStateException: "getOutputStream()" a déjà été appelé pour cette réponse
	at org.apache.catalina.connector.Response.getWriter(Response.java:633)
	at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:214)
	at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:105)
	at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
	at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
	at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:182)
	at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:123)
	at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:80)
	at org.apache.jsp.Error_jsp._jspService(Error_jsp.java:95)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
	at org.apache.struts.action.RequestProcessor.doInclude(RequestProcessor.java:1094)
	at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:260)
	at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
	at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:318)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
10 avr. 2012 17:02:42 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() for servlet [action] in context with path [/AccorWebRubis] threw exception [java.lang.IllegalStateException: "getOutputStream()" a déjà été appelé pour cette réponse] with root cause
java.lang.IllegalStateException: "getOutputStream()" a déjà été appelé pour cette réponse
	at org.apache.catalina.connector.Response.getWriter(Response.java:633)
	at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:214)
	at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:105)
	at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
	at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
	at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:182)
	at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:123)
	at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:80)
	at org.apache.jsp.Error_jsp._jspService(Error_jsp.java:95)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
	at org.apache.struts.action.RequestProcessor.doInclude(RequestProcessor.java:1094)
	at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:260)
	at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
	at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:318)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)

Si vous avez des idées sur comment ne plus avoir des erreurs qui pop.
Merci d'avance

[charles888]

Bonjour,

Après plusieurs essaie de code et de configuration j'ai trouvé l'erreur !

il suffisait de faire à la place de :

Code :

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resultat = "succes";

un

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resultat = null;

comme ça il ne retourne rien et il y a plus le problème du double appel de la réponse.