将zip文件以流的形式输出到页面

//将文件以流的形式输出//获取到zip文件的地址

String zipPath = businessMessageInter.downlodImgs(bussNo,imageIndexList,userLoginOut);

HttpServletResponse response = SessionUtil.getResponse();response.setCharacterEncoding("UTF-8");response.setContentType("text/html");// 2.设置文件头：最后一个参数是设置下载文件名response.setHeader("Content-Disposition", "attachment;fileName=" + zipPath+".zip");File zipFile = new File(zipPath+".zip");FileInputStream fis = null;ServletOutputStream out = null;try {//获取输入流    fis = new FileInputStream(zipFile);//获取输出流    out = response.getOutputStream();    int b = 0;    byte[] buffer = new byte[1024];//遍历输入流到输出流    while ((b = fis.read(buffer)) != -1) {        // 4.写到输出流(out)中        out.write(buffer, 0, b);    }    fis.close();    out.flush();    out.close();} catch (Exception e) {    e.printStackTrace();}