PrimeFaces p:fileUpload 不调用方法
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【中文标题】PrimeFaces p:fileUpload 不调用方法【英文标题】：PrimeFaces p:fileUpload does not invoke method 【发布时间】：2012-12-10 11:20:29 【问题描述】：我正在尝试使用 PrimeFaces <p:fileUpload>。我已经设置好了，与the showcase example 非常相似，但它不起作用。我从来没有收到成功的消息。我没有得到任何错误或任何东西。
这是我的web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<filter>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
<init-param>
<param-name>thresholdSize</param-name>
<param-value>51200</param-value>
</init-param>
<init-param>
<param-name>uploadDirectory</param-name>
<param-value>C:\etc</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>faces/index.xhtml</welcome-file>
</welcome-file-list>
</web-app>
这是视图：
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head></h:head>
<h:form enctype="multipart/form-data">
<p:fileUpload fileUploadListener="#fileUploadController.handleFileUpload"
mode="advanced"
update="messages"
sizeLimit="100000"
allowTypes="/(\.|\/)(gif|jpe?g|png)$/"/>
<p:growl id="messages" showDetail="true"/>
</h:form>
</html>
</h:form>
</h:body>
这是豆子：
package fileUpload;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.context.FacesContext;
import org.primefaces.event.FileUploadEvent;
@ManagedBean(name = "fileUploadController")
public class fileUploadController
private String destination = "c:\test";
public void upload(FileUploadEvent event)
FacesMessage msg = new FacesMessage("Success! ", event.getFile().getFileName() + " is uploaded.");
FacesContext.getCurrentInstance().addMessage(null, msg);
// Do what you want with the file
try
copyFile(event.getFile().getFileName(), event.getFile().getInputstream());
catch (IOException e)
e.printStackTrace();
public void copyFile(String fileName, InputStream in)
try
// write the inputStream to a FileOutputStream
OutputStream out = new FileOutputStream(new File(destination + fileName));
int read = 0;
byte[] bytes = new byte[1024];
while ((read = in.read(bytes)) != -1)
out.write(bytes, 0, read);
in.close();
out.flush();
out.close();
System.out.println("New file created!");
catch (IOException e)
System.out.println(e.getMessage());
我错过了什么？
WARNING: PWC4011: Unable to set request character encoding to UTF-8 from context /FileUpload, because request parameters have already been read, or ServletRequest.getReader() has already been called
WARNING: /index.xhtml @15,63 fileUploadListener="#fileUploadController.handleFileUpload(event)": Method handleFileUpload not found
javax.el.MethodNotFoundException: /index.xhtml @15,63 fileUploadListener="#fileUploadController.handleFileUpload(event)": Method handleFileUpload not found
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:109)
at org.primefaces.component.fileupload.FileUpload.broadcast(FileUpload.java:279)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:759)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:935)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722).
【问题讨论】：
请检查这是否还没有回答您的问题：***.com/questions/8875818/… 您好，我已经尝试按照其中的设置进行操作，但我仍然无法上传图像，它会让我上传它，但没有成功的消息或任何东西，所以我认为它没有上传它 好的，您在 webapp 的运行时类路径中也有 Commons-FileUpload 和 Commons-IO 吗？顺便说一句，你的观点很奇怪。表格不在正文中。这是对问题的粗心准备还是反映了真实的代码？ 我已将 Commons-FileUpload 和 Commons-IO 添加到 Web-INF/lib 中，除了将它们包含在此处之外，我还没有做任何其他事情，我读到这应该足够了，我应该做些什么还有这些吗？我正在使用 netbeans 和 glassfish 查看日志，有没有报错？ 【参考方案1】：例外情况不言自明。
javax.el.MethodNotFoundException: /index.xhtml @15,63 fileUploadListener="#fileUploadController.handleFileUpload(event)": 找不到方法句柄文件上传
这个方法确实不存在。而是这个：
public void upload(FileUploadEvent event)
使用#fileUploadController.upload 或将方法重命名为handleFileUpload。
【讨论】：
非常感谢:)，上传的内容保存在哪里？正如我确实尝试将它们保存到 c:\test 但这里什么都没有 好的，c:/test，但是现在当它试图保存在这里时，它说访问被拒绝，我可以给它访问权限吗？以上是关于PrimeFaces p:fileUpload 不调用方法的主要内容，如果未能解决你的问题，请参考以下文章
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