一次下载多个文件
public static void download(HttpServletRequest request,
HttpServletResponse response, String storeName, String contentType,
String realName) throws Exception {
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
String ctxPath = System.getProperty("user.dir") +"/"
+ FileOperateUtil.UPLOADDIR;
String downLoadPath = ctxPath + storeName;
long fileLength = new File(downLoadPath).length();
response.setContentType(contentType);
response.setHeader("Content-disposition", "attachment; filename="
+ new String(realName.getBytes("utf-8"), "ISO8859-1"));
response.setHeader("Content-Length", String.valueOf(fileLength));
bis = new BufferedInputStream(new FileInputStream(downLoadPath));
bos = new BufferedOutputStream(response.getOutputStream());
byte[] buff = new byte[2048];
int bytesRead;
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
System.out.println("sss");
}
bis.close();
bos.close();
}
写了一个下载方法,我把这个方法循环2次,为什么只下载了一次。是request,response的缘故吗
------解决方案--------------------我感觉你没有理解http协议,http一问一答的形式,你问一次,就取一个文件,response.setHeader("Content-Length", String.valueOf(fileLength)); 也设置死了的,你一定要返回两个文件是闹哪样?