java - 如何将 HTTP 请求正文写入 Java Web 应用程序中的文件？

Question

这是我的代码:

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {
    final ServletInputStream inputStream = req.getInputStream();
    int read;
    File file = new File("koray.txt");
    final FileOutputStream fileOutputStream = new FileOutputStream(file);
    while ((read = inputStream.read()) != -1) {
        fileOutputStream.write(read);
    }
    fileOutputStream.flush();
    fileOutputStream.close();
}

当我收到这样的 HTTP 请求时:

beer-characteristics=ğ

在 koray.txt 中我会看到:

beer-characteristics=%C4%9F

嗯，c49f 似乎是“ğ”的 utf-8 十六进制值，但为什么我在文件中看到十六进制值，而不是“ğ”本身？

编辑:这也不起作用:

final OutputStreamWriter outputStreamWriter = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
while ((read = in.read()) != -1) {
    outputStreamWriter.write(read);
}

Answer 1

用以下内容包装您的输入流:

BufferedReader in = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));

然后从缓冲读取器中以 utf-8 格式读取数据。