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我正在使用jdev 11.1.1.5.0.
。在我的使用案例中,我想創建一個下載鏈接。當用戶點擊鏈接時,文件應該自動下載(如下載servlet)。如何在ADF中創建下載鏈接?
的代碼如下:
HttpServletResponse response= (HttpServletResponse) FacesContext.getCurrentInstance().getExternalContext().getResponse(); response.setContentType("text/plain"); response.setHeader("Content-Disposition","attachment;filename="+part.getFileName()); response.setContentType("text/plain"); response.setHeader("ContentDisposition","attachment;filename="+part.getFileName()); InputStreaminput=part.getInputStream(); int read=0;
byte[] bytes = new byte[1024]; OutputStream os =response.getOutputStream();
while((read=input.read(bytes))!=-1)
{os.write(bytes, 0, read);
}
os.flush();
os.close();
但它無法正常工作。我的要求是要創建動態鏈接(URL),並且當用戶點擊鏈接時,文件被下載。有沒有其他方法可以做到這一點?謝謝。
嗨,實際上我有編程方式創建命令按鈕並試圖alose以下代碼 –
RichCommandImageLink BT =新RichCommandImageLink(); bt.setText(「mybt」+ part.getFileName());MethodExpression returnMethodExpression = fileDownladActionListenerMethodExpression(「#{pageFlowScope.jagranmailclient.downloadAttachment}」); FileDownloadActionListener fileDownLoadListener = new FileDownloadActionListener(); fileDownLoadListener.setMethod(returnMethodExpression); fileDownLoadListener.setContentType(「plain/text」); fileDownLoadListener.setFilename(fileName); testbt.addActionListener(fileDownLoadListener); –