Primefaces fileUploadSingle is not displayed

Question

我想在我的应用程序中使用fileUploadSingle:

然而，当我添加组件时。

<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> 

我正在使用:

        <junit-version>4.8.2</junit-version>
        <mockito-version>1.9.0</mockito-version>
        <dbunit-version>2.2</dbunit-version>
        <hibernate-version>4.0.1.Final</hibernate-version>
        <hibernate-validator-version>4.2.0.Final</hibernate-validator-version>
        <c3p0-version>0.9.1.2</c3p0-version>
        <spring-version>3.1.1.RELEASE</spring-version>
        <aspectj-version>1.5.4</aspectj-version>
        <jsf-version>2.1.3_01</jsf-version>
        <primefaces-version>3.0.M1</primefaces-version>

我还在我的应用程序中包含了commons-fileupload和commons-io。但是，在我的页面上什么也没有显示

Answer 1

您是否在web.xml中添加了以下代码?

<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>