創建pdf文件在java web下載

Question

我有一個列表，我想創建一個pdf報告。 用戶可以通過點擊按鈕來生成並下載pdf報告。 我使用檢票框架。 我該怎麼辦？

Answer 1

爲什麼不只是使用DownloadLink與Model會生成文件？

IModel fileModel = new LoadableDetachableModel(){ 
    protected Object load() { 
     // A hello world PDF 
     File f = File.createTempFile("tempFile", null); 
     Document document = new Document(); 
     PdfWriter.getInstance(document, new FileOutputStream(f)); 
     document.open(); 
     document.add(new Paragraph("Hello World!")); 
     document.close(); 
     return f; 
    } 
}; 

DownloadLink link = new DownloadLink(linkId, fileModel, "report.pdf"); 
// If you want to delete the file after it's been downloaded 
link.setDeleteFileAfterDownload(true); 
add(link); 

也看看：

• How to use Wicket's DownloadLink with a file generated on the fly?
• Download a zip file through wicket