在网上查过一些 比较零碎的资料
2种方案
1)不用第三方库
2)smartupload
我想要比较完整的代码
谢谢
------解决方案--------------------
SF,帮你顶起来.让更多人看到来帮助你.
------解决方案--------------------
写个servlet 重定向输出文件流就可以了 ,代码放在jsp 中也可以
- Java code
import java.io.FileInputStream;import java.io.IOException;import java.io.OutputStream;import java.net.URLEncoder;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class DownloadFileServlet extends HttpServlet { public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String filename=request.getParameter("filename"); response.reset(); response.setContentType("application/x-download"); UploadFile upload = new UploadFile(); String filepath = upload.getDownloadFilePath(); String filenamedownload = filepath + java.io.File.separator + filename; String filenamedisplay = java.net.URLEncoder.encode(filename, "UTF-8"); filenamedisplay = URLEncoder.encode(filenamedisplay, "UTF-8"); response.addHeader("Content-Disposition", "attachment;filename=" + filenamedisplay); OutputStream output = null; FileInputStream fis = null; try { output = response.getOutputStream(); fis = new FileInputStream(filenamedownload); byte[] b = new byte[1024]; int i = 0; while ((i = fis.read(b)) > 0) { output.write(b, 0, i); } output.flush(); } catch (Exception e) { System.out.println("Close the download file windows!"); } finally { if (fis != null) { fis.close(); fis = null; } if (output != null) { output.close(); output = null; } } }}