POST JsonObject to server, android

Question

im 尝试将我的 JSON 对象发送到服务器地址，但它不允许我这样做，在执行方法上给了我一个错误，我已经尝试了这个论坛上关于这个问题的所有答案，但仍然无法让它工作，你认为我的错误是什么？

这是代码

    public class MainActivity extends Activity implements OnClickListener{
    Button btnLogin, btnRegister;
    EditText tvEmail, tvPassword;
    TextView tvResultJson1;
    Gson g;
    AsyncHttpClient client;
     Usuario usuario;
     public String url = "http://unshakable-kingswood-61-157350.use1-2.nitrousbox.com:9000/login";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mainlogin);


        btnLogin =(Button)findViewById(R.id.btnLogin);
        btnRegister=(Button)findViewById(R.id.btnRegister);
        tvEmail=(EditText)findViewById(R.id.tvEmail);
        tvPassword=(EditText)findViewById(R.id.tvPassword);
        tvResultJson1=(TextView)findViewById(R.id.tvResultJson1);

        client= new AsyncHttpClient();
        g= new Gson();
        btnRegister.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
            //  Intent i= new Intent(MainActivity.this, RegisterForm.class);
                //startActivity(i);

            }
        });
        // check if you are connected or not
        if(isConnected()){

        }
        else{
            Toast toast1 =
                    Toast.makeText(getApplicationContext(),
                            "there is no internet access", Toast.LENGTH_SHORT);
                toast1.show();
                finish();
        }
        btnLogin.setOnClickListener((OnClickListener) this);
    }

    private boolean isConnected() {
        ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Activity.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
        if (networkInfo != null && networkInfo.isConnected()) 
            return true;
        else
        return false;
    }

     public void onClick(View view) {
         // Get user defined values
       sendData();
     }

    private void sendData() {
         String json="";
         Usuario usuario = new Usuario();
         usuario.setMail(tvEmail.getText().toString());
         usuario.setPass(tvPassword.getText().toString());
     JsonObject jsonObject= new JsonObject();
     jsonObject.addProperty("mail", usuario.getNombre());
     jsonObject.addProperty("pass", usuario.getPass());
     json = jsonObject.toString();
     UploadASyncTask upload = new UploadASyncTask();        
     upload.execute(jsonObject);
}


    private class UploadASyncTask extends AsyncTask<JSONObject, Void, Void>{
        @Override
        protected Void doInBackground(JSONObject...jsonObject) {
            try{
                HttpParams params = new BasicHttpParams();
                //params.setParameter("data", auth);
                HttpClient httpclient = new DefaultHttpClient(params);
                HttpPost httpPost = new HttpPost("http://unshakable-kingswood-61-157350.use1-2.nitrousbox.com:9000/login");
                List<NameValuePair> postParams = new ArrayList<NameValuePair>();
                postParams.add(new BasicNameValuePair("data", jsonObject.toString()));
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(postParams);
                entity.setContentEncoding(HTTP.UTF_8);
                httpPost.setEntity(entity);
                HttpResponse httpResponse = httpclient.execute(httpPost);
                InputStream inputStream = httpResponse.getEntity().getContent();
                String result = "";
                if(inputStream != null){
                   result="Si funciono";
                }
                else{
                    result = "Did not work!";
                }
                Log.d("RESULT", result);

            }catch(Exception e){
                Log.e("ERROR IN SEVER UPLOAD", e.getMessage());
            }
            return null;
        }
    }
        }

Answer 1

你混淆了你的导入。

sendData()您使用的是JsonObject - 请注意骆驼案

在您的AsyncTask中，您使用的是JSONObject - 注意 JSON 全部大写。