jsf - Tomcat + RichFaces 4.1 加载文件时出现异常

标签 jsf richfaces tomcat7

我已经部署了我的 web 应用程序，但由于某种原因，尝试将文件加载到服务器时出现了一些异常，我不知道为什么会发生这种情况。有时当我尝试上传文件时 rich:fileUpload不上传文件，组件的进度条永远不会被填满，Tomcat 的日志上会出现如下异常:

may 21, 2012 8:38:04 PM org.richfaces.request.MultipartRequest25 parseIfNecessary
SEVERE: Exception parsing multipart request: Request prolog cannot be read
org.richfaces.exception.FileUploadException: Exception parsing multipart request: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:156)
    at org.richfaces.request.MultipartRequest25.parseIfNecessary(MultipartRequest25.java:77)
    at org.richfaces.request.MultipartRequest25.getParameter(MultipartRequest25.java:114)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:75)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:56)
    at java.util.Collections$UnmodifiableMap.get(Collections.java:1339)
    at com.sun.faces.application.view.MultiViewHandler.calculateRenderKitId(MultiViewHandler.java:220)
    at javax.faces.application.ViewHandlerWrapper.calculateRenderKitId(ViewHandlerWrapper.java:155)
    at com.sun.faces.context.FacesContextImpl.isPostback(FacesContextImpl.java:211)
    at javax.faces.context.FacesContextWrapper.isPostback(FacesContextWrapper.java:402)
    at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:188)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1824)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.io.IOException: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.readProlog(MultipartRequestParser.java:270)
    at org.richfaces.request.MultipartRequestParser.initialize(MultipartRequestParser.java:172)
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:148)
    ... 30 more

may 21, 2012 8:38:04 PM org.richfaces.request.MultipartRequest25 parseIfNecessary
SEVERE: Exception parsing multipart request: Request prolog cannot be read
org.richfaces.exception.FileUploadException: Exception parsing multipart request: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:156)
    at org.richfaces.request.MultipartRequest25.parseIfNecessary(MultipartRequest25.java:77)
    at org.richfaces.request.MultipartRequest25.getParameter(MultipartRequest25.java:114)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:75)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:56)
    at java.util.Collections$UnmodifiableMap.get(Collections.java:1339)
    at com.sun.faces.application.view.MultiViewHandler.calculateRenderKitId(MultiViewHandler.java:220)
    at javax.faces.application.ViewHandlerWrapper.calculateRenderKitId(ViewHandlerWrapper.java:155)
    at com.sun.faces.context.FacesContextImpl.isPostback(FacesContextImpl.java:211)
    at javax.faces.context.FacesContextWrapper.isPostback(FacesContextWrapper.java:402)
    at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:188)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    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.processRequest(ApplicationDispatcher.java:473)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
    at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:455)
    at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:399)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:191)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1824)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.io.IOException: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.readProlog(MultipartRequestParser.java:270)
    at org.richfaces.request.MultipartRequestParser.initialize(MultipartRequestParser.java:172)
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:148)
    ... 33 more

may 21, 2012 8:38:04 PM org.richfaces.request.MultipartRequest25 parseIfNecessary
SEVERE: Exception parsing multipart request: Request prolog cannot be read
org.richfaces.exception.FileUploadException: Exception parsing multipart request: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:156)
    at org.richfaces.request.MultipartRequest25.parseIfNecessary(MultipartRequest25.java:77)
    at org.richfaces.request.MultipartRequest25.getParameter(MultipartRequest25.java:114)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:75)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:56)
    at java.util.Collections$UnmodifiableMap.get(Collections.java:1339)
    at com.sun.faces.application.view.MultiViewHandler.calculateRenderKitId(MultiViewHandler.java:220)
    at javax.faces.application.ViewHandlerWrapper.calculateRenderKitId(ViewHandlerWrapper.java:155)
    at com.sun.faces.context.FacesContextImpl.isPostback(FacesContextImpl.java:211)
    at javax.faces.context.FacesContextWrapper.isPostback(FacesContextWrapper.java:402)
    at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:188)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1824)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.io.IOException: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.readProlog(MultipartRequestParser.java:270)
    at org.richfaces.request.MultipartRequestParser.initialize(MultipartRequestParser.java:172)
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:148)
    ... 30 more

may 21, 2012 8:38:04 PM org.richfaces.request.MultipartRequest25 parseIfNecessary
SEVERE: Exception parsing multipart request: Request prolog cannot be read
org.richfaces.exception.FileUploadException: Exception parsing multipart request: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:156)
    at org.richfaces.request.MultipartRequest25.parseIfNecessary(MultipartRequest25.java:77)
    at org.richfaces.request.MultipartRequest25.getParameter(MultipartRequest25.java:114)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:75)
    at com.sun.faces.context.RequestParameterMap.get(RequestParameterMap.java:56)
    at java.util.Collections$UnmodifiableMap.get(Collections.java:1339)
    at com.sun.faces.application.view.MultiViewHandler.calculateRenderKitId(MultiViewHandler.java:220)
    at javax.faces.application.ViewHandlerWrapper.calculateRenderKitId(ViewHandlerWrapper.java:155)
    at com.sun.faces.context.FacesContextImpl.isPostback(FacesContextImpl.java:211)
    at javax.faces.context.FacesContextWrapper.isPostback(FacesContextWrapper.java:402)
    at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:188)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    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.processRequest(ApplicationDispatcher.java:473)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
    at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:455)
    at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:399)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:191)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1824)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.io.IOException: Request prolog cannot be read
    at org.richfaces.request.MultipartRequestParser.readProlog(MultipartRequestParser.java:270)
    at org.richfaces.request.MultipartRequestParser.initialize(MultipartRequestParser.java:172)
    at org.richfaces.request.MultipartRequestParser.parse(MultipartRequestParser.java:148)
    ... 33 more

知道会发生什么吗？我可以从哪里开始寻找在我的应用程序上修复此问题的方法？

干杯，

最佳答案

我的项目中有相同的堆栈跟踪。我可以解释为什么会发生这种情况以及解决它的方法很少。

因此，richfaces fileUpload 组件假定尚未从其他地方读取多部分请求 InputStream。但是，如果您的应用程序中有任何执行简单的过滤器request.getParameter(anyParamName)这会强制多部分请求读取完整的输入流并将所有内容放入 request.getParts()收藏。

当richfaces fileupload 尝试从输入流中读取某些内容时，它无法执行此操作，因为流光标位于末尾(在tomcat 源中)并且只返回-1；这导致 Richfaces 认为它​​无法从流中读取任何内容。

要解决此问题，您可以删除所有强制多部分请求解析 inputStream 的过滤器。
同样作为热修复，您可以尝试更改一些 Richfaces 类，例如 MultipartRequest25或 MultipartRequestParser .

我已为 MultipartRequestParser 添加了修补程序为了检查请求是否已经有部件并尝试将这些部件解析为 FileUploadParam。这对于检查异常消息非常困难，但它可以作为一个热修复程序。

jboss jira 中存在 Unresolved 问题，似乎与此问题有关。你可以检查一下。我也在那里添加评论。 https://issues.jboss.org/browse/RF-13061

public void parse() throws FileUploadException {
    try {
        initialize();

        while (!sequenceMatcher.isEOF()) {
            readNext();
        }
    } catch (IOException e) {
        if(e.getMessage().equals(REQUEST_PROLOG_CANNOT_BE_READ)){
            //means it can not read request prolog. maybe application server already read everything and stores data in parts
            try {
                if(request.getParts()!=null && request.getParts().size()>0){
                    Collection<Part> parts = request.getParts();
                    //parts seem to be complete files so get the headers and so on here
                    //and create fileUploadItems from parts
                    for(Part part:parts){
                        String headersString = part.getHeader("content-disposition");
                        Multimap<String, String> headers = LinkedListMultimap.create();
                        String[] split = headersString.split("\r\n");
                        for (String headerString : split) {
                            parseParams(headerString, "; ", headers);
                        }
                        FileUploadParam param = createParam(headers);
                        if (param == null) {
                            continue;
                        }
                        param.create();
                        try{
                            int size = (int)part.getSize();
                            byte[] buf = new byte[size];
                            part.getInputStream().read(buf, 0, size);
                            param.handle(buf, size);
                        }finally{
                            param.complete();
                        }

                        if (param.isFileParam()) {
                            uploadedFiles.add(new UploadedFile25(param.getName(), param.getResource(), headers));
                        } else {
                            parametersMap.put(param.getName(), param.getValue());
                        }
                    }
                    //return from the method if everything was successfull
                    return;
                }
            } catch (Exception e1) {
                this.cancel();
                throw new IllegalStateException("Could get Parts from the request", e1);
            }
        }
        this.cancel();
        throw new FileUploadException(MessageFormat.format("Exception parsing multipart request: {0}", e.getMessage()), e);
    }
}

关于jsf - Tomcat + RichFaces 4.1 加载文件时出现异常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/10704407/

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