Android HTTP-Post empty JSON

本文关键字：JSON empty HTTP-Post Android | 更新日期: 2023-09-27

我需要将一个名为"json"的json变量发送到地址通过安卓设备 http://otu-git.dyndns.ws/pvm_srv/serv.php我当前的代码是这样的：

JSONObject jsn = new JSONObject();
JSONObject json = new JSONObject();
JSONObject header = new JSONObject();
try {
    header.put("txtUser", "123");
    header.put("md5Passwd", "123");
    header.put("fun", "validarUsuario");
    jsn.put("USR", header);
    json.put("json", jsn);
    se = new StringEntity(json.toString());     
} catch (Exception e1) {
    // TODO Auto-generated catch block
    e1.printStackTrace();
}
try {
     params = new ArrayList<NameValuePair>();
     params.add(new BasicNameValuePair("json",json.toString()));
     httppost.setEntity(new UrlEncodedFormEntity(params));
     Log.i("dhiraj",params.toString());
     ////////////////////////////////////////////////////////////
    HttpResponse response = httpclient.execute(httppost);
    entity = response.getEntity();

但是我从服务器收到空 Json 帖子响应！

像这样添加标头

 httppost.addHeader("txtUser", "123");
        httppost.addHeader("md5Passwd", "123");
        httppost.addHeader("fun", "fun");

注释此行 'httppost.setEntity（new UrlEncodedFormEntity（params））;

否则你可以这样做

 ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("txtUser", "123"));   
        params.add(new BasicNameValuePair("md5Passwd", "123")); 
        params.add(new BasicNameValuePair("fun", "fun"));
 httppost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));

JSONObject jsn = new JSONObject();
    JSONObject json = new JSONObject();
    JSONObject header = new JSONObject();
    try {
        header.put("txtUser", "123");
        header.put("md5Passwd", "123");
        header.put("fun", "fun");
        jsn.put("USR", header);
    } catch (Exception e1) {
        e1.printStackTrace();
    }
    try {
        if (SDK_INT >= 10) {
        ThreadPolicy tp = ThreadPolicy.LAX;
        StrictMode.setThreadPolicy(tp);
        }
        ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
        // one of the method
        // params.add(new BasicNameValuePair("txtUser", "123"));
        // params.add(new BasicNameValuePair("md5Passwd", "123"));
        // params.add(new BasicNameValuePair("fun", "fun"));
        // one of the method
        // // httppost.addHeader("txtUser", "123");
        // // httppost.addHeader("md5Passwd", "123");
        // // httppost.addHeader("fun", "fun");
        HttpPost httppost = null;
        httppost = new HttpPost("http://otu-git.dyndns.ws/pvm_srv/serv.php");
        params.add(new BasicNameValuePair("json", jsn.toString()));
        httppost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
        Log.i("dhiraj", params.toString());
        HttpClient httpclient = null;
        httpclient = new DefaultHttpClient();
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();
        String responseBody = EntityUtils.toString(response.getEntity());
        String s = "";
    } catch (Exception exception) {
        exception.printStackTrace();
    }