我有一个servlet让用户从服务器下载文件。原始文件是人类可读的,但下载的文件alwyas包含文件末尾的二进制内容。
HttpSession session = request.getSession(true);
String fileName = session.getAttribute("download").toString();
System.out.println("Download file " + fileName);
File file = new File(fileName);
FileInputStream fileIn = new FileInputStream(file);
response.setContentType("text/plain");
response.setHeader("Content-Disposition", "attachment;filename=" + file.getName());
ServletOutputStream out = response.getOutputStream();
byte[] bytes = new byte[BYTES_DOWNLOAD];
while (fileIn.read(bytes, 0, BYTES_DOWNLOAD) != -1) {
out.write(bytes, 0, BYTES_DOWNLOAD);
}
out.flush();
out.close();
提前致谢。
答案 0 :(得分:2)
代码中的小错误:
byte[] bytes = new byte[BYTES_DOWNLOAD];
int count;
while ( (count = fileIn.read(bytes)) != -1) {
out.write(bytes, 0, count);
}
答案 1 :(得分:0)
你看到了什么二进制内容?它可能是文件中的行结尾,如果有的话吗?