java - 下载 .csv 文件 Java6

Question

我正在尝试从服务器下载文件。

我有这个方法，但是当我打开下载的文件时，它是字节码，而且不可读。

            File file = new File(request.getPath());
            response.setContentType("text/csv;charset=utf-8");
            response.setHeader("Content-Disposition","attachment; filename="+file.getName());
            response.setHeader("filename",file.getName());
            OutputStream resOs= response.getOutputStream();
            OutputStream buffOs= new BufferedOutputStream(resOs);
            OutputStreamWriter outputwriter = new OutputStreamWriter(buffOs);

            FileInputStream inputStream = new FileInputStream(file);  //read the file
            try {
                int c;
                while ((c = inputStream.read()) != -1) {
                    outputwriter.write(c);
                }
            } finally {
                inputStream.close();
                outputwriter.flush();
                outputwriter.close();
            }
        };

问题出在哪里？

Answer 1

由于您的方法写入字节数据，因此将内容类型设置为 application/octet-stream，

            response.setContentType("application/octet-stream");