java - 将 JSON 对象发送到 Android 中的 Web 服务会创建重复的 JSON 对象

Question

我已经创建了一个 Android 应用程序来将 JSON 对象从我的应用程序发送到 Web 服务。

我能够将数据发送到网络服务。

如何解决问题，网络服务显示重复 JSON 对象？

这是我的代码:

// Vehicle Condition Details taken Activity 

public class VechileConditionActivity extends Activity {

EditText Kms,Fuel,Regno,Licence;
RadioGroup oilRadioGroup,tyreRadioGroup,treadRadioGroup;
String Mileage,Fuellevel,Oillevels,Pressure,deapth,Vehiclenumber,Licencenumber;
private ActionBar actionBar;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.vechilecondition1);
    Kms = (EditText)findViewById(R.id.editText1);
    Fuel = (EditText)findViewById(R.id.editText2);
    Regno = (EditText)findViewById(R.id.editText3);
    Licence = (EditText)findViewById(R.id.editText4);
    //Taking action bar control
    actionBar = getActionBar();

    // Set the action bar properties includes Title,Icon,Background 
    actionBar.setDisplayShowTitleEnabled(false);
    actionBar.setDisplayHomeAsUpEnabled(true);
    actionBar.setIcon(getApplicationContext().getResources().getDrawable(R.drawable.vehiclecondtion));
    actionBar.setBackgroundDrawable(getApplicationContext().getResources().getDrawable(R.drawable.titlebar));
    // Set Bottom Action bar with background image
    actionBar.setSplitBackgroundDrawable(getApplicationContext().getResources().getDrawable(R.drawable.footer));


        oilRadioGroup =(RadioGroup) findViewById(R.id.radioGroup1);



        oilRadioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup arg0, int arg1) {
                // TODO Auto-generated method stub


                        RadioButton radioButton = (RadioButton) findViewById(arg1);

                        Oillevels = radioButton.getText().toString();

            }
        });

        tyreRadioGroup =(RadioGroup) findViewById(R.id.radioGroup3);

        tyreRadioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup arg0, int arg1) {
                // TODO Auto-generated method stub

                RadioButton radioButton = (RadioButton) findViewById(arg1);

                Pressure = radioButton.getText().toString();
            }
        });

        treadRadioGroup =(RadioGroup) findViewById(R.id.radioGroup2);

        treadRadioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup arg0, int arg1) {
                // TODO Auto-generated method stub 
             RadioButton radioButton = (RadioButton)    findViewById(arg1);


             deapth = radioButton.getText().toString();

            }
        });
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.activity_main, menu);
    return true;
}

//onOptionsItemSelected  is called whenever an item in your options menu is selected
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub

    switch (item.getItemId()) {
    // case to upload the vehicle condition details 
    case (R.id.itemid_0):

         new sendJson().start();
        Toast.makeText(getApplicationContext(), "uploading the information", Toast.LENGTH_LONG).show();
        break;
    // case to capture the vehicle 
    case (R.id.itemid_1):
        Bundle bundle = getIntent().getExtras();
    //Extract the data…

    String Driverid = bundle.getString("Driverid");
        Toast.makeText(getApplicationContext(), "capturing details of drivercode "+Driverid,Toast.LENGTH_LONG).show();
        break;
    // case to move to home screen to download the delivery list    
    case (R.id.itemid_2):

        Intent intent = new Intent();
        intent.setClass(getApplicationContext(), HomeScreenActivity1.class);
        startActivity(intent);

        break;
    default:
        break;
    }

    return super.onOptionsItemSelected(item);
}
public class sendJson extends Thread
{

    // declared locally so that it destroys after serving its purpose

JSONObject jsonobj = new JSONObject();
public void run() { 
try {
     HttpClient client = new DefaultHttpClient();
     HttpPost post = new HttpPost("http://XXXXX/XXXXXX");
     Looper.prepare(); //For Preparing Message Pool for the child Thread

     HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000); //Timeout Limit
        // adding some keys


     Bundle bundle = getIntent().getExtras();
     //Extract the data…

    String Driverid = bundle.getString("Driverid");//this is for String 

    String Mileage = Kms.getText().toString();
    String Fuellevel = Fuel.getText().toString();
    String Vehiclenumber = Regno.getText().toString();
    String Licencenumber = Licence.getText().toString();
    String Oil = Oillevels;
    String Air = Pressure;
    String tread = deapth;
    jsonobj.put("DriverCode", Driverid); 
    jsonobj.put("MileageReading",Mileage );
    jsonobj.put("FuelLevel",Fuellevel);
    jsonobj.put("VechileNum",Vehiclenumber );
    jsonobj.put("LicenceNum",Licencenumber );
    jsonobj.put("OilLevel",Oil );
    jsonobj.put("TyrePressure",Air );
    jsonobj.put("ThredDepth",tread );

    Log.i("coooooooooooooooooooooooooooooooooooooood", "DriverCode:"+Driverid);
    Log.i("coooooooooooooooooooooooooooooooooooooood", "MileageReading:"+Mileage);
    Log.i("coooooooooooooooooooooooooooooooooooooood", "FuelLevel:"+Fuellevel);
    Log.i("coooooooooooooooooooooooooooooooooooooood", "VechileNum:"+Vehiclenumber); 
    Log.i("coooooooooooooooooooooooooooooooooooooood", "LicenceNum:"+Licencenumber);
    Log.i("coooooooooooooooooooooooooooooooooooooood", "OilLevel:"+Oil);
    Log.i("coooooooooooooooooooooooooooooooooooooood", "TyrePressure:"+Air);   
    Log.i("coooooooooooooooooooooooooooooooooooooood", "ThredDepth:"+tread);

    StringEntity se;
    try {
        se = new StringEntity(jsonobj.toString());

        se.setContentType("application/json");
        se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
        post.setEntity(se);
        HttpResponse response = client.execute(post);
        InputStream inputStream =    response.getEntity().getContent();
        HttpResponse httpresponse = client.execute(post, new BasicHttpContext()); //For thread safe
        String response1 = EntityUtils.toString(httpresponse.getEntity());
        response1 = response1.replaceAll("\\\"", "\"");
        Log.i("coooooooooooooooooooooooooooooooooooooood", "Server Response : " + response1);
        Log.i("coooooooooooooooooooooooooooooooooooooood", "Server Response : " + response1);
    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IllegalStateException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block 
        e.printStackTrace();
    }


    } catch (JSONException ex) {
        //buildref.setText("Error Occurred while building JSON");
        ex.printStackTrace();
    }    
}

}

Answer 1

得到我的答案，我在代码中犯的错误是:

try {
        se = new StringEntity(jsonobj.toString());

        se.setContentType("application/json");
        se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
        post.setEntity(se);
        HttpResponse response = client.execute(post);
        InputStream inputStream =    response.getEntity().getContent();
        HttpResponse httpresponse = client.execute(post, new BasicHttpContext()); //For thread safe
        String response1 = EntityUtils.toString(httpresponse.getEntity());
        response1 = response1.replaceAll("\\\"", "\"");
        Log.i("coooooooooooooooooooooooooooooooooooooood", "Server Response : " + response1);
        Log.i("coooooooooooooooooooooooooooooooooooooood", "Server Response : " + response1);
} 

这是正确的代码

try {
        se = new StringEntity(jsonobj.toString());

    se.setContentType("application/json");
    se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
    httppostreq.setEntity(se);
    HttpResponse httpresponse;
    try {
        httpresponse = httpclient.execute(httppostreq,new BasicHttpContext());
        String response1 = EntityUtils.toString(httpresponse.getEntity());
        response1 = response1.replaceAll("\\\"", "\"");
        Log.i("coooooooooooooooooooooooooooooooooooooood", "Server Response : " + response1);
        //Log.i("coooooooooooooooooooooooooooooooooooooood", "Server Response : " + response1);

}