用OutputStream下载大文件时,下载过程中取消下载后,websphere6.0会死掉,而tomcat不会
用OutputStream下载大文件时,下载过程中,点取消下载后,websphere6.0会死掉
而tomcat不会，可以捕捉到异常！不过异常也是null！
不知道是不是websphere本身的Bug
下面是测试的Servelet
import java.io.BufferedInputStream;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.OutputStream;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class DownServlet extends HttpServlet {public DownServlet() {super();}public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {processRequest(request,response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {processRequest(request,response);}public void processRequest(HttpServletRequest request,HttpServletResponse response) throws IOException {String path = request.getParameter("path");File file = new File(path);response.setContentType("application/x-msdownload");response.setContentLength((int) file.length());response.setHeader("Content-Disposition","attachment;filename=xxxf.cvs");response.setHeader("windows-Target", "_blank");BufferedInputStream input = new BufferedInputStream(new FileInputStream(file));try {byte buffBytes[] = new byte[1024];int allLength = 0;System.out.println("*********************"+path);System.out.println("开始下载");OutputStream out = response.getOutputStream();System.out.println("获得流之前");int read=0;while ((read=input.read(buffBytes))!=-1) {allLength += read;out.write(buffBytes, 0, read);}System.out.println("获得流之后"+allLength);out.flush();out.close();input.close();System.out.println("正常关闭文件流");} catch (IOException e) {System.out.println("取消下载"+e.getMessage());} System.out.println("********************");}} 