與ZK框架上傳文件

我需要上傳CSV文件ZK 這是我ZUL頁面：與ZK框架上傳文件

<zk> 
<window 
    apply="org.zkoss.bind.BindComposer" 
    viewModel="@id('vm') @init('UploadVM')" 
    title="win" 
    position="center" 
    mode="overlapped" 
    border="normal" 
    width="300px" 
    height="200px"> 
    <button 
     label="upload" 
     upload="true,maxsize=801192" 
     onUpload="@command('uploadFile',upload=event)" 
     autodisable="self" /> 

</window> 
</zk>

而且我的Java頁面：

public class UploadVM { 
    private Media media; 
    public Media getMedia(){ 
     return media; 
    } 
    @NotifyChange("media") 
    @Command 
    public void uploadFile(@ContextParam(ContextType.TRIGGER_EVENT) UploadEvent event) { 
     media = event.getMedia(); 
     media.getStreamData(); 
    }

但是這個簡單的例子，我有以下錯誤：

Use getStringData() instead

而我不知道會發生什麼。

誰能幫幫我？

來源

2013-09-25 user2768380

在從中獲取數據之前，您應該知道媒體的格式。根據documentation媒體數據可以是binary或text-based格式。要檢索其內容，您應該在前一種情況下使用getByteData()或getStreamData()，在後者中應使用getStringData()或getReaderData()。例如，

media = event.getMedia(); 
if (media.isBinary()) { 
    InputStream is = media.getStreamData(); 
} else { 
    String s = media.getStringData(); 
}

來源

2013-09-25 20:29:33

如果我有一個csv文件，每行讀取行數，我做什麼？，因爲我需要getstream數據或不？ – user2768380

@ user2768380使用'media.getReaderData（）'並用'BufferedReader'封裝結果讀取器 –

我上傳csv文件，我的東西它將幫助您更好地瞭解一個最好的例子dropupload。

index.zul

<?page title="Auto Generated index.zul"?> 
<window title="Drop here" border="normal" width="100%" height="100%" 
    apply="org.zkoss.bind.BindComposer" 
    viewModel="@id('vm') @init('com.demo.DropFileViewModel')"> 

    <dropupload maxsize="5120" detection="none" 
     onUpload="@command('doUpload')"> 
    </dropupload> 

    <button label="Download" onClick="@command('doDownload')"></button> 


</window>

DropFileViewModel.java

package com.demo; 

import org.zkoss.bind.BindContext; 
import org.zkoss.bind.annotation.Command; 
import org.zkoss.bind.annotation.ContextParam; 
import org.zkoss.bind.annotation.ContextType; 
import org.zkoss.util.media.Media; 
import org.zkoss.zhtml.Filedownload; 
import org.zkoss.zk.ui.event.UploadEvent; 
import org.zkoss.zul.Messagebox; 

public class DropFileViewModel { 
    Media media; 

    @Command 
    public void doUpload(@ContextParam(ContextType.BIND_CONTEXT) BindContext ctx) { 
     UploadEvent upEvent = null; 
     Object objUploadEvent = ctx.getTriggerEvent(); 
     if (objUploadEvent != null && (objUploadEvent instanceof UploadEvent)) { 
      upEvent = (UploadEvent) objUploadEvent; 
     } 
     if (upEvent != null) { 
      media = upEvent.getMedia(); 
      Messagebox.show("File Uploaded: " + media.getName()); 

     } 
    } 

    @Command 
    public void doDownload() { 
     if (media != null) 
      Filedownload.save(media); 
     else 
      Messagebox.show("First Drop Your File"); 

    } 
}

check here

感謝

來源

2013-09-27 17:08:54 Sitansu

這是我的生成PDF文檔解決方案：

@Command 
@NotifyChange("savePDF") 
public void savePDF() throws IOException, Exception { 

File f = new File("PDF_test.pdf"); 
OutputStream file = new FileOutputStream(f); 

Document document = new Document(); 
PdfWriter.getInstance(document, file); 

Filedownload.save(f, "application/pdf"); 

PdfPTable table=new PdfPTable(3); 
PdfPCell cell ..... 
}

來源

2016-10-11 14:10:41

與ZK框架上傳文件

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