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我正在使用具有 centerLayout、westLayout 的 Layout 结构。在中心 layoutUnit 中使用 primefaces 文件上传。我将过滤器添加到 web.xml 并将所需的库文件上传到 WEB/INF 库。

我实施了该链接中的步骤：如何使用 PrimeFaces p:fileUpload? 侦听器方法从未被调用或 UploadedFile 为 null 它不适用于我的问题。

加载 layoutComplex.xhtml 页面时，出现以下错误：“ /UI 布局初始化错误。中心窗格元素不存在。中心窗格是必需元素。” “错误渲染视图 [/layoutComplex.xhtml]：java.lang.IllegalStateException：在提交响应后无法创建会话”

如果我写到地址栏“http:....hostName/portal/dataImportingProjectCurrent.jsf” url，没有错误。

在 layoutComplex.xhtml 代码部分：

<p:layoutUnit position="center" id="centerLayout">

                <h:form id="formCenter" enctype="multipart/form-data">
                    <p:panel id="optionPanel">
                        <p:panel id="panelWelcome"
                            rendered="#{menuSelection.selectedOption == menuSelection.WELCOME}">
                            <ui:include src="/welcomePage.xhtml" />
                        </p:panel>

                        <p:panel id="panelUserAdd"
                            rendered="#{menuSelection.selectedOption == menuSelection.USER_ADD}">
                            <ui:include src="/kullanici.xhtml" />
                        </p:panel>
                        <p:panel id="panelProjectAdd"
                            rendered="#{menuSelection.selectedOption == menuSelection.PROJECT_ADD}">
                            <ui:include src="/proje.xhtml" />
                        </p:panel>

                            <p:panel id="panelAuthorizationAdd" 
                            rendered="#{menuSelection.selectedOption == menuSelection.AUTHORIZATION_ADD}">
                            <ui:include src="/yetki.xhtml" />
                        </p:panel>

                        <p:panel id="panelRoleAdd"
                            rendered="#{menuSelection.selectedOption == menuSelection.ROL_ADD}">
                            <ui:include src="/rol.xhtml" />
                        </p:panel>

                        <p:panel id="panelDataDefining"
                            rendered="#{menuSelection.selectedOption == menuSelection.DATA_DEFINING}">
                            <ui:include src="/dataDefining.xhtml" />
                        </p:panel>

                        <p:panel id="panelDataEvaluation"
                            rendered="#{menuSelection.selectedOption == menuSelection.DATA_EVALUATION}">
                            <ui:include src="/dataEvaluation.xhtml" />
                        </p:panel>
                        **<p:panel id="panelDataImporting"
                            rendered="#{menuSelection.selectedOption == menuSelection.DATA_IMPORTING}">
                            <ui:include src="/dataImporting.xhtml" />
                        </p:panel>**
                        <p:panel id="panelDataReporting"
                            rendered="#{menuSelection.selectedOption == menuSelection.DATA_REPORTING}">
                            <ui:include src="/dataReporting.xhtml" />
                        </p:panel>
                        <p:panel id="panelAdmin"
                            rendered="#{menuSelection.selectedOption == menuSelection.ADMIN}">
                            <ui:include src="/admin.xhtml" />
                        </p:panel>
                        <p:panel id="panelCreateNewReportSchema"
                            rendered="#{menuSelection.selectedOption == menuSelection.DATA_REPORTING_NEW_SCHEMA}">
                            <ui:include src="/dataReportingNewSchema.xhtml" />
                        </p:panel>
                        <p:panel id="panelCreateReport"
                            rendered="#{menuSelection.selectedOption == menuSelection.DATA_REPORT_CREATING}">
                            <ui:include src="/dataReportCreating.xhtml" />
                        </p:panel>

                    </p:panel>
                </h:form>

            </p:layoutUnit>

属于primefaces fileUpload的页面代码是dataImportingProjectCurrent.xhtml：

<h:body>
<h:form id="formDataImportProjectCurrent" enctype="multipart/form-data" >
    <h1>
        Project current fdasdata importinfdsa  is under construction. Coming soon...
    </h1>

    <p:fileUpload label="Seçiniz"
            fileUploadListener="#{dataImportingBean.handleFileUpload}"
            mode="advanced" auto="true" sizeLimit="1000000"
            allowTypes="/(\.|\/)(gif|jpe?g|png)$/" />

</h:form>

我的 bean 是 DataImportingBean.java ：

@ManagedBean @SessionScoped 公共类 DataImportingBean 扩展 GenericBean 实现 Serializable{

private static final long serialVersionUID = 730586496885706439L;

private UploadedFile file;

@Inject
DataImportingService DataImportingService;

@Override
public GenericService<Data, Long> getService() {
    return DataImportingService;
}


@Override
public void newObject() {
    setObject(new Data());
}


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

}

非常感谢您的回复。

4

1 回答 1

0

将以下上下文参数添加到 web.xml 后即可工作。谢谢

<context-param>
<param-name>com.sun.faces.writeStateAtFormEnd</param-name>
<param-value>false</param-value>
</context-param>
于 2013-09-28T21:42:16.837 回答