Question

我有关于primefaces文件上传器的问题，当上传完成fileUploadListener中的处理程序方法没有调用时我在方法启动中放置了一个断点并且执行正常进行，因为它不存在，那里没有例外：

这是我的文件上传器：

                   <h:form enctype="multipart/form-data">
                    <p:fileUpload fileUploadListener="#{fileUploadController.handleFileUpload}"
                        mode="advanced" update="messages" sizeLimit="100000"
                        allowTypes="/(\.|\/)(gif|jpe?g|png)$/"
                        <h:message style="color:red;margin:8px;"/>
                       <p:growl id="messages" showDetail="true" />
                    </h:form>

这是处理程序：

@ManagedBean(name="fileUploadController")
@SessionScoped
public class FileUploadController {  

public void handleFileUpload(FileUploadEvent event) {  
    FacesMessage msg = new FacesMessage("Succesful", event.getFile().getFileName() + " is uploaded.");  
    FacesContext.getCurrentInstance().addMessage(null, msg);  
     }  
}

的web.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"  xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee   http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>Ga</display-name>
<welcome-file-list>
    <welcome-file>pages/HomePage.jsf</welcome-file>
</welcome-file-list>
<filter>
    <filter-name>PrimeFaces FileUpload Filter</filter-name>
    <filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>PrimeFaces FileUpload Filter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>

<filter-mapping>
    <filter-name>PrimeFaces FileUpload Filter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<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>*.jsf</url-pattern>
</servlet-mapping>
<context-param>
    <description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>client</param-value>
</context-param>
<context-param>
    <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
    <param-value>resources.application</param-value>
</context-param>
<listener>
    <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>

Answer 1

您应该将以下过滤器添加到 web.xml ：

<filter>
    <filter-name>PrimeFaces FileUpload Filter</filter-name>
    <filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>PrimeFaces FileUpload Filter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>

EDIT1：

此外this question可能会有所帮助;）

EDIT2：

亲爱的朋友，请在你的web.xml中删除一个过滤器映射，它是重复的。

Primefaces文件上传器不会调用处理程序方法

1 个答案: