/**

 * java获取raw

 */

public static String readRaw(InputStream inputStream) {

    String result = "";

    try {

        ByteArrayOutputStream outSteam = new ByteArrayOutputStream();

        byte[] buffer = new byte[1024];

        int len;

        while ((len = inputStream.read(buffer)) != -1) {

            outSteam.write(buffer, 0, len);

        }

        outSteam.close();

        inputStream.close();

        result = new String(outSteam.toByteArray(), "UTF-8");

    } catch (IOException e) {

        e.printStackTrace();

    }

    return result;

}

调用：

String result = FileUtils.readRaw(request.getInputStream());  //result就是raw中的数据