使用RichFaces上传文件

<rich:fileUpload id="fileUpload" uploadData="#{fileUploadBean.uploadedFile}"
                     maxFilesQuantity="1"
                     onuploadcomplete="handleComplete()">
    <a4j:ajax event="uploadcomplete" execute="@this" render="messages" />
</rich:fileUpload>

@Named
@RequestScoped
public class FileUploadBean {

    private UploadedFile uploadedFile;

    public void setUploadedFile(UploadedFile uploadedFile) {
        this.uploadedFile = uploadedFile;
    }

    public UploadedFile getUploadedFile() {
        return uploadedFile;
    }

    public void uploadFile() {
        // Handle file upload here
    }
}

public void uploadFile() {
    InputStream inputStream = null;
    OutputStream outputStream = null;

    try {
        inputStream = uploadedFile.getInputStream();
        outputStream = new FileOutputStream(new File("path/to/save/file.txt"));

        int read = 0;
        byte[] bytes = new byte[1024];

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

        // Handle file upload success
    } catch (IOException e) {
        // Handle file upload error
    } finally {
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException e) {
                // Handle file upload error
            }
        }

        if (outputStream != null) {
            try {
                outputStream.close();
            } catch (IOException e) {
                // Handle file upload error
            }
        }
    }
}