<%

response.setContentType(fileminitype);

response.setHeader("Location",filename);

response.setHeader("Cache-Control", "max-age=" + cacheTime);

//filename应该是编码后的(utf-8)

response.setHeader("Content-Disposition", "attachment; filename=" + filename);

response.setContentLength(filelength);

OutputStream outputStream = response.getOutputStream();

InputStream inputStream = new FileInputStream(filepath);

byte[] buffer = new byte[1024];

int i = -1;

while ((i = inputStream.read(buffer)) != -1) {

outputStream.write(buffer, 0, i);

}

outputStream.flush();

outputStream.close();

inputStream.close();

outputStream = null;

%>

public void service(HttpServletRequest req, HttpServletResponse res)

throws ServletException, IOException {

res.setContentType(" text/plain ");

OutputStream outputStream = null;

try {

outputStream = res.getOutputStream();

//把文件路径为srcFile的文件写入outputStream中

popFile(srcFile, outputStream)) ;

} catch (IOException e) {

e.printStackTrace();

}

}

URLConnection con;

try {

//url是被调用的SERVLET的网址 如 *.do

con = url.openConnection();

con.setUseCaches(false);

con.setDoInput(true);

con.setDoOutput(true);

con.setRequestProperty("Content-Type",

"application/octet-stream");

InputStream in = con.getInputStream();

ProgressMonitorInputStream pmInputStream = new ProgressMonitorInputStream

(pane, "正在从服务器下载文件内容", in);

ProgressMonitor pMonitor = pmInputStream.getProgressMonitor();

pMonitor.setMillisToDecideToPopup(3);

pMonitor.setMillisToPopup(3);

//localfilepath本地路径,localstr文件文件夹，filename本地文件名

String localfilepath = localstr + filename ;

//方法saveFilsaveFilee是把输入流pmInputStream写到文件localfilepath中

if(saveFilsaveFilee(localfilepath,pmInputStream)){

　　　　        openLocalFile(localfilepath);

}

URLConnection con;

try {

con = url.openConnection();

//url是被调用的SERVLET的网址 如 *.do

　　        con.setUseCaches(false);

con.setDoInput(true);

con.setDoOutput(true);

con.setRequestProperty("Content-Type","application/octet-stream");

OutputStream out = con.getOutputStream();

//localfilepath本地路径,localstr文件文件夹，filename本地文件名

String localfilepath = localstr + filename;

//文件getOutputStream是把文件localfilepath写到输出流out中

getOutputStream(localfilepath,out);

InputStream in = con.getInputStream();

return true;

}catch (IOException e) {

System.out.println("文件上传出错！");

e.printStackTrace();

}

public void service(HttpServletRequest req, HttpServletResponse res)

throws ServletException, IOException {

res.setContentType(" text/plain ");

InputStream inputStream = null;

try {

inputStream = res.getInputStream();

//把输入流inputStream保存到文件路径为srcFile的文件中

writefile(srcFile, inputStream);

} catch (IOException e) {

e.printStackTrace();

}

} // end service