Ich arbeite derzeit mit einer App, die auf ein Online-Spiel zugreifen können, um Informationen über mein Konto zu erhalten. Ich muss JSON verwenden, um mit dem Server zu kommunizieren. Ich habe den folgenden Code verwendet, um zu versuchen, mit dem Server zu kommunizieren, aber es gibt keine Antworten vom Server. Ich bemerkte auch, dass der httpclient und einige andere populäre Klassen veraltet waren und ich kann kein richtiges Tutorial finden, um mich zu diesem Thema zu unterrichten. Jede Hilfe wird geschätzt.Senden und empfangen json obj in Android
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="deardanielxd.travain2.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Username : "
android:id="@+id/Username_Lbl"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:editable="true"
android:minHeight="20dp"
android:layout_alignBottom="@+id/Username_Field"
android:layout_toStartOf="@+id/Username_Field"
android:layout_alignEnd="@+id/Password_Lbl" />
<EditText
android:layout_width="wrap_content"
android:layout_height = "40dp"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="@+id/Username_Field"
android:editable="true"
android:contextClickable="true"
android:textIsSelectable="true"
android:enabled="true"
android:focusable="true"
android:clickable="true"
android:inputType="text"
android:minHeight="40dp"
android:layout_alignParentTop="true"
android:layout_alignEnd="@+id/Load_Btn"
android:layout_toEndOf="@+id/Password_Lbl" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Password : "
android:id="@+id/Password_Lbl"
android:layout_below="@+id/Username_Lbl"
android:layout_alignParentStart="true"
android:minHeight="20dp"
android:layout_alignBottom="@+id/Password_Field" />
<EditText
android:layout_width="wrap_content"
android:layout_height="40dp"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="@+id/Password_Field"
android:password="true"
android:editable="true"
android:textIsSelectable="true"
android:enabled="true"
android:focusable="true"
android:contextClickable="true"
android:clickable="true"
android:inputType="text"
android:minHeight="40dp"
android:layout_below="@+id/Username_Field"
android:layout_alignParentEnd="true"
android:layout_alignStart="@+id/Username_Field" />
<Button
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Load"
android:id="@+id/Load_Btn"
android:layout_alignParentEnd="true"
android:layout_alignBottom="@+id/spinner"
android:layout_below="@+id/Password_Field" />
<Spinner
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/spinner"
android:spinnerMode="dropdown"
android:layout_alignParentStart="true"
android:layout_toStartOf="@+id/Load_Btn"
android:layout_below="@+id/Password_Lbl" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/SysMsg"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:text="System : "
android:textColor="#FF0000" />
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/scrollView"
android:layout_below="@+id/spinner"
android:layout_alignParentStart="true"
android:layout_above="@+id/SysMsg"
android:layout_alignParentEnd="true" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/OutPut"
android:enabled="true" />
</ScrollView>
MainActivity.java
package deardanielxd.travain2;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import org.json.JSONObject;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class MainActivity extends AppCompatActivity {
Spinner spinner;
EditText Username, Password;
Button Load_Btn;
TextView Main_Output;
TextView Sys_Output;
String server = "";
boolean debug = true;
PlayerInfo curr = new PlayerInfo();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SetupGadget();
attachListener();
}
private void SetupGadget() {
spinner = (Spinner) findViewById(R.id.spinner);
Username = (EditText) findViewById(R.id.Username_Field);
Password = (EditText) findViewById(R.id.Password_Field);
Load_Btn = (Button) findViewById(R.id.Load_Btn);
Main_Output = (TextView) findViewById(R.id.OutPut);
Sys_Output = (TextView) findViewById(R.id.SysMsg);
ArrayAdapter adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,Constants.Servers);
spinner.setAdapter(adapter);
}
private void attachListener() {
Load_Btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (debug) {
MainOutput("Username : " + Username.getText());
MainOutput("Password : " + Password.getText());
MainOutput("Server : " + server);
MainOutput("Internet Connection : " + (InternetAccess()?"Yes":"No"));
MainOutput("");
}
new test(MainActivity.this).execute();
}
});
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
server = parent.getSelectedItem().toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
private void SystemOutput(String output) {
Sys_Output.setText("System : " + output);
}
public void MainOutput(String output) {
Main_Output.append("\n" + output);
}
private boolean InternetAccess() {
ConnectivityManager cm =
(ConnectivityManager)this.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
return activeNetwork != null &&
activeNetwork.isConnectedOrConnecting();
}
public class test extends AsyncTask<Void, Void, Void>
{
private MainActivity MA;
test(MainActivity ma) {
MA = ma;
}
@Override
protected Void doInBackground(Void... n) {
try {
URL url = new URL("http://"+MA.server+"/api/external.php");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setDoOutput(true);
urlConnection.setRequestProperty("Content-Type","application/json");
urlConnection.setRequestProperty("Host", "android.schoolportal.gr");
urlConnection.setRequestMethod("POST");
urlConnection.setUseCaches(false);
urlConnection.connect();
OutputStream printout = new DataOutputStream(urlConnection.getOutputStream());
printout.write(URLEncoder.encode(this.getObj().toString(),"UTF-8").getBytes());
printout.flush();
printout.close();
try {
urlConnection.setRequestMethod("GET");
urlConnection.setDoInput(true);
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
BufferedReader r = new BufferedReader(new InputStreamReader(in));
StringBuilder total = new StringBuilder(in.available());
String line;
while ((line = r.readLine()) != null) {
total.append(line).append('\n');
}
MA.MainOutput(total.toString());
MA.MainOutput("End of Doc");
} finally {
urlConnection.disconnect();
return null;
}
} catch (java.net.MalformedURLException e) {
} catch (java.io.IOException e) {
};
return null;
}
private JSONObject getObj() {
JSONObject jobj = new JSONObject();
try {
jobj.put("email","[email protected]");
jobj.put("siteName","EasyTravian");
jobj.put("sitUrl","testing.com");
jobj.put("public",false);
} catch (org.json.JSONException e) {
}
return jobj;
}
}
public PlayerInfo getCurrentPlayerInfo() {
return this.curr;
}
public void UpdateCurr() {
this.curr.Username = this.Username.getText().toString();
this.curr.Password = this.Password.getText().toString();
this.curr.Server = this.server;
}
}
Constants.java
public class Constants {
public static final String[] Servers = {
"ts1.travian.hk",
"ts2.travian.hk",
"ts20.travian.hk",
"tx3.travian.hk",
"ts4.travian.hk",
"ts19.travian.hk",
"ts3.travian.hk",
"ts6.travian.hk",
"ts5.travian.hk"
};
}
Mate Blick in Volley, wird Ihr Leben einfacher hier – Memme
Versuchen [Retrofit] (http: //square.github.I/Retrofit /) –