Question

使用 p：fileUpload 尝试上传文件时，我收到了错误消息。我尝试了maven clean和maven install for update dependeces。我多次更改了web.xml。我相信问题是与我的anotation的关系，我正在使用@Autowired（Spring），但是我改变了它并没有工作。我如何解决这个问题？

我正在使用： Primefaces 6.0 ， Java 8， Spring Data， Spring MVC

我的网站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>
    <url-pattern>*.jsf</url-pattern>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>ASYNC</dispatcher>
</filter-mapping>

JSF：

<p:fileUpload id="fileDescAto" auto="true" multiple="false"
    invalidFileMessage="Tipo de Arquivo Inválido:"
    disabled="#{not empty searchDocumentoBean.descAtoArquivoFileName}"
    update="messagesDialog @this panelGroupFileDescription"
    allowTypes="/(\.|\/)(pdf)$/" sizeLimit="10485760"
    invalidSizeMessage="Tamanho de arquivo excedido (10MB):"
    fileUploadListener="#{searchDocumentoBean.adicionaArquivoUpload}"
    label="Escolher Arquivo..." mode="advanced" />

豆：

public void adicionaArquivoUpload(FileUploadEvent ev) {

        String[] name = ev.getFile().getFileName().split("\\\\");

        descAtoArquivo = ev.getFile().getContents();
        descAtoArquivoFileName = name[name.length-1];
    }

    public void removeArquivoUpload() {

        descAtoArquivo = null;
        descAtoArquivoFileName = null;
    }// GET AND SET OMITED

头部注释我的bean：

@Component
@Scope("view")
@ManagedBean(name = "searchDocumentoBean")
@URLMappings(mappings = {       
        @URLMapping(id ="searchDocumento", pattern = "/searchDocumento", viewId = "/resources/pages/documento/searchDocumento.jsf")
})

我尝试使用文件上传时的错误控制

处理RENDER_RESPONSE 6时获得的

javax.faces.event.AbortProcessingException错误：UIComponent-ClientId

08:43:55,231 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (http-/0.0.0.0:8080-2) Error Rendering View[/resources/pages/documento/searchDocumento.xhtml]: javax.faces.event.AbortProcessingException: java.lang.NullPointerException
    at org.primefaces.context.PrimePartialResponseWriter.startMetadataIfNecessary(PrimePartialResponseWriter.java:303) [primefaces-6.0.jar:6.0]
    at org.primefaces.context.PrimePartialResponseWriter.startUpdate(PrimePartialResponseWriter.java:142) [primefaces-6.0.jar:6.0]

Caused by: java.lang.NullPointerException
    at org.primefaces.util.ResourceUtils.filterStylesheets(ResourceUtils.java:96) [primefaces-6.0.jar:6.0]
    at org.primefaces.context.PrimePartialResponseWriter.startMetadataIfNecessary(PrimePartialResponseWriter.java:287) [primefaces-6.0.jar:6.0]
    ... 49 more


08:43:55,246 SEVERE [javax.enterprise.resource.webcontainer.jsf.context] (http-/0.0.0.0:8080-2) JSF1073: javax.faces.event.AbortProcessingException obtido durante o processamento de RENDER_RESPONSE 6: UIComponent-ClientId=, Message=java.lang.NullPointerException
08:43:55,240 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (http-/0.0.0.0:8080-5) Error Rendering View[/resources/pages/documento/searchDocumento.xhtml]: javax.faces.event.AbortProcessingException: java.lang.NullPointerException

更新27/09/2017 我发现错误： JBWEB000281：Servlet映射指定一个未知的Servlet名称Faces Servlet'

我的web.xml中出现错误？

<servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.xhtml</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>
    </filter>
    <filter-mapping>
        <filter-name>PrimeFaces FileUpload Filter</filter-name>
        <servlet-name>Faces Servlet</servlet-name>
    </filter-mapping> 

    <filter-mapping>
        <filter-name>openEntityManager</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>

Answer 1

这解决了我的问题：

Listener method in p:fileUpload is never invoked in primefaces

除此之外。我需要指定Faces Servlet的位置：

<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
</servlet>

<强> javax.faces.webapp.FacesServlet

我需要especify资源primefaces取决于fileupload工作正常＆gt;

<context-param>
        <param-name>primefaces.UPLOADER</param-name>
        <param-value>commons</param-value>
 </context-param>

在某些版本的primefaces中，没有必要指定此配置。我目前正在使用6.0版，它认为在web.xml中不需要此规范，因为它是一个较新的版本，但它是必要的。

p：使用@Autowired bean注释，fileUpload不起作用

1 个答案: