안드로이드 TCP 소켓 오류

Question

최근에 tcp를 통해 C# 서버에 연결하는 안드로이드에서 응용 프로그램을 만들고 싶었습니다. 서버가 만들어지고 수신 대기합니다. 포트가 열립니다.

07-20 02:11:52.057 1262-1262/connector.de.connect2 W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable 
07-20 02:11:52.122 1262-1262/connector.de.connect2 D/MyApp: I am here 
07-20 02:11:52.122 1262-1262/connector.de.connect2 W/System.err: java.net.SocketException: socket failed: EACCES (Permission denied) 
07-20 02:11:52.122 1262-1262/connector.de.connect2 W/System.err:  at libcore.io.IoBridge.socket(IoBridge.java:619) 
07-20 02:11:52.122 1262-1262/connector.de.connect2 W/System.err:  at java.net.PlainSocketImpl.create(PlainSocketImpl.java:198) 
07-20 02:11:52.122 1262-1262/connector.de.connect2 W/System.err:  at java.net.Socket.startupSocket(Socket.java:584) 
07-20 02:11:52.122 1262-1262/connector.de.connect2 W/System.err:  at java.net.Socket.tryAllAddresses(Socket.java:128) 
07-20 02:11:52.122 1262-1262/connector.de.connect2 W/System.err:  at java.net.Socket.<init>(Socket.java:178) 
07-20 02:11:52.122 1262-1262/connector.de.connect2 W/System.err:  at java.net.Socket.<init>(Socket.java:150) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at connector.de.connect2.MainActivity.onCreate(MainActivity.java:41) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.app.Activity.performCreate(Activity.java:6251) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2403) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.app.ActivityThread.-wrap11(ActivityThread.java) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.os.Handler.dispatchMessage(Handler.java:102) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.os.Looper.loop(Looper.java:148) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at android.app.ActivityThread.main(ActivityThread.java:5466) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at java.lang.reflect.Method.invoke(Native Method) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err: Caused by: android.system.ErrnoException: socket failed: EACCES (Permission denied) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at libcore.io.Posix.socket(Native Method) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at libcore.io.BlockGuardOs.socket(BlockGuardOs.java:282) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err:  at libcore.io.IoBridge.socket(IoBridge.java:604) 
07-20 02:11:52.123 1262-1262/connector.de.connect2 W/System.err: ... 18 more 

내가 내 응용 프로그램

<uses-permission android:name="android.permission.INTERNET" /> 

나는 많은 버전 "을 포함하여 시도 manifest.xml에 다음 코드를 없음을 읽어

문제는 내 안드로이드 응용 프로그램이 유발하는 오류입니다 ACCESS_NETWORK_STATE ","ACCESS_NETWORK_STATE "등

아무 것도 변경되지 않고 오류가 계속 나타나거나 앱이 완전히 중단됩니다.

나는 무엇을 해야할지 잘 모릅니다. 그것은 또한 응용 프로그램 자체의 코드를 도움이된다면

은 여기에 있습니다 : 시험을 마치고 변경 여기

protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     Log.d("MyApp","I am here"); 
     try 
     { 
      Socket socket = new Socket("192.168.1.3", 1071); 
      PrintWriter pw=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()))); 
      pw.println("Hello"); 
      socket.close(); 
     } 
     catch (UnknownHostException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
    } 

그리고 Manifest.xml :

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="connector.de.connect2" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk android:minSdkVersion="14" /> 
    <use-permission android:name="android.permission.INTERNET" /> 
    <use-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
    <use-permission android:name="android.permission.ACCESS_WIFI_STATE" /> 

    <application 
     android:allowBackup="true" 
     android:icon="@mipmap/ic_launcher" 
     android:label="@string/app_name" 
     android:supportsRtl="true" 
     android:theme="@style/AppTheme"> 
     <activity android:name=".MainActivity"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
    </application> 

</manifest> 

Answer 1

당신이 아무튼 제공하신 로그 캣 출력 어떤 이유로 그것을 보여주지는 않지만 주 스레드에서 네트워크 작업을 수행 할 수 없습니다 (예 : onCreate() 내부). 네트워크 작업을 백그라운드 스레드로 오프로드해야합니다.