相关疑难解决方法(0)

我正在尝试使用PrimeFaces上传文件,但fileUploadListener上传完成后不会调用该方法.

这是观点:

<h:form>
    <p:fileUpload fileUploadListener="#{fileUploadController.handleFileUpload}"
        mode="advanced" 
        update="messages"
        sizeLimit="100000" 
        allowTypes="/(\.|\/)(gif|jpe?g|png)$/"/>

    <p:growl id="messages" showDetail="true"/>
</h:form>

还有豆子:

@ManagedBean
@RequestScoped
public class FileUploadController {

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

}

我已经在方法上放置了一个断点,但它从未调用过.当使用mode="simple"和时ajax="false",它已被调用,但我希望它在高级模式下工作.我正在使用Netbeans和Glassfish 3.1.

我想上传一个使用PrimeFaces和ManagedBean的文件.我想用p:fileUploadmode ="simple".

XHTML代码:

    <p:fileUpload id="fileId" mode="simple" value="#{itemBean.upFile}"
        fileLimit="1" />
    <p:commandButton ajax="true" value="Upload File" update="messagess"
                     id="save-btn"
                     actionListener="#{itemBean.fileUpload(itemBean.upFile,itemBean.hiddenFileName)}"
                     process="@this" oncomplete="showImage()" />

ManagedBean:

public void fileUpload(UploadedFile uploadFile, String hiddenKey) {  
    String keyFileName = hiddenKey;

    boolean validFile = true;
    String expression = "([^\\s]+(\\.(?i)(gif|jpg|jpeg|gif|png|PNG|GIF|JPG|JPEG|bmp))$)";
    if((uploadFile == null) ) {
        validFile = false;
        FacesMessage msg = new FacesMessage("Error! "+ "Please select an image.");  
        FacesContext.getCurrentInstance().addMessage(null, msg);
    }  
    else {
    System.out.println("going to file upload"+uploadFile.getFileName()+"---hiddenKey"+keyFileName);
    if((!uploadFile.getFileName().matches(expression)) ) {
        validFile = false;
        FacesMessage msg = new FacesMessage("Error! "+ …

我正在尝试使用primefaces上传图像,并且不调用fileUploadListener.

<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"/>

这是豆子:

@ManagedBean
@RequestScoped
public class FileUploadController {
    public void handleFileUpload(FileUploadEvent event) throws Exception {
      System.out.println("OOOOOOOOOOOOOOOOOOK");
            File targetFolder = new File("C:/Uploads");
            InputStream inputStream = event.getFile().getInputstream();
            OutputStream out = new FileOutputStream(new File(targetFolder,
                    event.getFile().getFileName()));
            int read = 0;
            byte[] bytes = new byte[1024];

            while ((read = inputStream.read(bytes)) != -1) {
                out.write(bytes, 0, read);
            }
            inputStream.close();
            out.flush();
            out.close();  

    }
}

这是web.xml配置:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<filter>
<filter-name>PrimeFaces …