p： fileUpload使用@Autowared bean注释不起作用

Question

尝试使用p:fileUpload上载文件时收到错误。我尝试了maven clean和maven install for update dependeces。我换了网站。多次使用xml。我相信问题是与我的Anotion的关系，我正在使用@Autowired（Spring），但我改变了它，它不起作用。我如何解决这个问题？

我正在使用：Primeface 6.0，Java8，Spring Data，Spring MVC

我的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>
    <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" />

Bean：

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My bean：

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

当我尝试使用文件上传时出现错误控制台

javax。面孔。事件在处理RENDER_响应6:UIComponent ClientId期间获得AbortProcessingException错误

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我出现错误：JBWEB000281：Servlet映射指定未知的Servlet名称Faces Servlet'

我的网络中出现了一个错误。xml？

<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：

p中的侦听器方法：在primefaces中从不调用fileUpload

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>

javax。面孔。网络应用。FacesServlet

我需要为文件上传指定资源primefaces

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

在primeface的某些版本中，没有必要指定这种配置。我目前使用的是6.0版本，它认为这种规范在web.xml没有必要，因为它是一个较新的版本，但它是必要的。