import Java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class SendWord extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//get the 'file' parameter
String fileName = (String) request.getParameter("file");
if (fileName == null fileName.equals(""))
throw new ServletException(
"Invalid or non-existent file parameter in SendWord servlet.");
// add the .doc suffix if it doesn't already exist
if (fileName.indexOf(".doc") == -1)
fileName = fileName + ".doc";
String wordDir = getServletContext().getInitParameter("word-dir");
if (wordDir == null wordDir.equals(""))
throw new ServletException(
"Invalid or non-existent wordDir context-param.");
ServletOutputStream stream = null;
BufferedInputStream buf = null;
try {
stream = response.getOutputStream(); File doc = new File(wordDir + "/" + fileName);
response.setContentType("application/msword");
response.addHeader("Content-Disposition", "attachment; filename="
+ fileName);
response.setContentLength((int) doc.length());
FileInputStream input = new FileInputStream(doc);
buf = new BufferedInputStream(input);
int readBytes = 0;
while ((readBytes = buf.read()) != -1)
stream.write(readBytes);
} catch (IOException ioe) {
throw new ServletException(ioe.getMessage());
} finally {
if (stream != null)
stream.close();
if (buf != null)
buf.close();
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
（出处：http://www.knowsky.com）
