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01.<%@page pageEncoding="utf-8" import="java.io.*,java.net.*"%>
02.<HTML>
03.<HEAD>
04.<SCRIPT TYPE="text/javascript">
05. var dataSize = 0;
06. function update(total) {
07. document.body.innerHTML = "ÒÑÏÂÔØ"+total+"/"+dataSize+"×Ö½Ú£¡";
08. }
09.</SCRIPT>
10.</HEAD>
11.<BODY>
12.<%
13.try {
14. String downFileUrl = request.getParameter("url"); //ÒªÏÂÔØµÄÎļþµÄURL¡£
15. String savePath = request.getParameter("savepath"); //ÒªÁí´æÎªµÄ·¾¶
16. String fileName = request.getParameter("filename"); //ÒªÁí´æÎªµÄÎļþÃû
17.
18. fileName = fileName != null ? fileName : downFileUrl.substring(downFileUrl.lastIndexOf("/") + 1); //È¡ÎļþÃû
19. savePath = (savePath) != null ? savePath + "/" + fileName : application.getRealPath("") + "/" + fileName; //È¡±£´æÂ·¾¶µÄ¾ø¶ÔµØÖ·
20.
21. URL downUrl = new URL(downFileUrl);
22. URLConnection conn = downUrl.openConnection();
23.
24. int dataSize = conn.getContentLength(); //È¡µÃÒªÏÂÔØµÄÊý¾ÝµÄ³¤¶È
25. out.println("<SCRIPT>dataSize = "+dataSize+";</SCRIPT>");
26.
27. BufferedInputStream in = new BufferedInputStream(conn.getInputStream());
28. BufferedOutputStream outS = new BufferedOutputStream(new FileOutputStream(new File(savePath)));
29.
30. byte[] data = new byte[1024];
31. long total = 0;
32.


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