java appengine中的App engine应用程序/JSON负载读取

Question

我如何读取作为发送到GAE java应用程序的有效负载的字符串/字节数组？

 $http({
        method : 'POST',
        url : 'http://APPID.appspot.com/api/get-reference-locales-for',
        data : {
            'param' : value,
            'param2' : value2
        })

protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException { ...

Answer 1

基于这里的答案：从Java servlet中的POST请求获取请求有效负载

我现在使用：

public String getRequestPayload(HttpServletRequest req) {
    StringBuilder buffer = new StringBuilder();
    BufferedReader reader;
    String data = "";
    try {
        reader = req.getReader();
        String line;
        while ((line = reader.readLine()) != null) {
            buffer.append(line);
        }
        data = buffer.toString();   
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return data;
}