udp android服务器无线

-1

我已经做了一个程序，它是一个服务器的Android接收从C程序客户端通过WiFi的UDP包，但实际上问题是，我只能通过USB电缆将我的手机连接到我的PC客户端为了在我的手机上运行我的应用程序。因此，我是Android世界的新手，我会请你指导我如何通过WiFi设置连接，而不使用电缆？udp android服务器无线

帮助！

这是我的服务器代码：

package com.example.server_android; 

import java.io.IOException; 
import java.net.DatagramPacket; 
import java.net.DatagramSocket; 
import java.net.SocketException; 
import java.net.UnknownHostException; 

import android.app.Activity; 
import android.os.Bundle; 
import android.util.Log; 
import android.widget.EditText; 
import android.widget.TextView; 

public class Server_Android extends Activity{ 

    private final static int SERVER_PORT = 1234; 
    public final static int RECEIVING_TIMEOUT_SERVER = 3000; 
    DatagramSocket socket; 
    DatagramPacket packetOut; 
    DatagramPacket packetIn; 
    byte[] DataIn; 
    byte[] DataOut; 

    /*Android widgets*/ 
    TextView text; 
    EditText edit; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.activity_server_android); 
     //text = (EditText)findViewById(R.id.editText1); 
     text =(TextView)findViewById(R.id.textView2); 
     text.setText(""); 

     /* Thread for receiving Data from CLient */ 
     new Thread(new Receiver()).start(); 
      try { 
     Thread.sleep(500); 
     }catch(InterruptedException e){ 
      Log.e("UDP", "UDP receive failed!"); 
     } 
    } 

    public class Receiver implements Runnable{ 

     public void run(){ 

      try { 

       while(socket != null && !socket.isClosed()){ 

      DataOut = new byte[1024]; 
//   InetAddress fromaddress = InetAddress.getByName("10.4.0.11"); 
      socket = new DatagramSocket(SERVER_PORT); 
      socket.setSoTimeout(RECEIVING_TIMEOUT_SERVER); 
      packetIn = new DatagramPacket(DataOut,DataOut.length);   

      socket.receive(packetIn); 
      text.append("source port :" + packetIn.getPort() + "\n"); 
      text.append("source address :" + packetIn.getAddress().toString() + "\n"); 
      Log.d("UDP", "Packet receveid");   
      String message = new String(packetIn.getData()); 
      text.append(message +"\n"+ packetIn.getPort() +"\n"+ packetIn.getAddress().toString()); 
      Log.d("UDP", "le message reçu"); 
      Log.d("Message : ", "" + message);   
      } 
      } 
      catch(UnknownHostException exc) { 
       System.out.println("Destinataire inconnu"); 
      } 
      catch(SocketException exc) { 
       System.out.println("Probleme d'ouverture de la socket"); 
      } 
      catch(IOException exc) { 
       System.out.println("Probleme sur la reception du message"); 
      } 
      } 
     } 

}

和我的客户端代码： // ------------------------- -------------------------------------------------- -

#include "biblio.h" 

#define portnumber 1234 
int 
main(int argc, 
    char **argv) 
{ 
//_________Seting_Destination_IP_adress____________________ 

in_addr_t ipAddress= inet_addr("10.4.0.156"); 

//---- create UDP socket ---- 
int udpSocket=socket(PF_INET,SOCK_DGRAM,0); 
if(udpSocket==-1) 
    { perror("socket"); exit(1); } 

struct sockaddr_in toAddr; 
int lenght = sizeof(toAddr); 


// ... allowing broadcast (optional) 
int on=1; 
    if(setsockopt(udpSocket,SOL_SOCKET,SO_BROADCAST,&on,sizeof(int))==-1) 
    { perror("setsockopt"); exit(1); } 

int s; 
for(;;) 
    { 
    //---- read next line on standard input ---- 
    char msg[0x100]; 
    char *buffer = malloc(100); 
    if(!fgets(msg,0x100,stdin)) { break; } 
    //---- send message to the specified destination/port ---- 
    bzero(&toAddr,lenght);  
    toAddr.sin_family=AF_INET; 
    toAddr.sin_port=htons(portnumber); 
    toAddr.sin_addr.s_addr=ipAddress; 
    s = sendto(udpSocket,msg,strlen(msg),0,(struct sockaddr *)&toAddr,lenght); 
    printf("Destination address is %s -- port is : %d ",inet_ntoa(toAddr.sin_addr),ntohs(toAddr.sin_port)); 
    if(s == -1) 
    { perror("sendto"); exit(1); } 
} 

//---- close UDP socket ---- 
close(udpSocket); 
return 0; 
} 

//----------------------------------------------------------------------------

这是日志文件：

08-20 10:07:56.885: D/libEGL(22622): loaded /system/lib/egl/libEGL_mali.so 
    08-20 10:07:56.890: D/libEGL(22622): loaded /system/lib/egl/libGLESv1_CM_mali.so 
    08-20 10:07:56.895: D/libEGL(22622): loaded /system/lib/egl/libGLESv2_mali.so 
    08-20 10:07:56.900: D/(22622): Device driver API match 
    08-20 10:07:56.900: D/(22622): Device driver API version: 10 
    08-20 10:07:56.900: D/(22622): User space API version: 10 
    08-20 10:07:56.900: D/(22622): mali: REVISION=Linux-r2p4-02rel0 BUILD_DATE=Mon Mar 5 09:47:55 KST 2012 
    08-20 10:07:56.925: D/OpenGLRenderer(22622): Enabling debug mode 0 
    08-20 10:08:05.555: W/dalvikvm(22622): threadid=11: thread exiting with uncaught exception (group=0x40a2d1f8) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): FATAL EXCEPTION: Thread-1053 
    08-20 10:08:05.570: E/AndroidRuntime(22622): android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:4039) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.view.ViewRootImpl.requestLayout(ViewRootImpl.java:709) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.view.View.requestLayout(View.java:12675) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.view.View.requestLayout(View.java:12675) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.view.View.requestLayout(View.java:12675) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.view.View.requestLayout(View.java:12675) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.widget.RelativeLayout.requestLayout(RelativeLayout.java:268) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.view.View.requestLayout(View.java:12675) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.widget.TextView.checkForRelayout(TextView.java:6773) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.widget.TextView.setText(TextView.java:3306) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.widget.TextView.setText(TextView.java:3162) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.widget.TextView.append(TextView.java:2822) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at android.widget.TextView.append(TextView.java:2812) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at com.example.test_udp.MainActivity$Receiver.run(MainActivity.java:70) 
    08-20 10:08:05.570: E/AndroidRuntime(22622): at java.lang.Thread.run(Thread.java:856) 
    08-20 10:08:05.790: D/OpenGLRenderer(22622): Flushing caches (mode 0) 
    08-20 10:08:06.325: D/OpenGLRenderer(22622): Flushing caches (mode 1) 
    08-20 10:13:05.715: I/Process(22622): Sending signal. PID: 22622 SIG: 9

来源

2013-08-16 N.B

这是我的服务器代码： –

你能做到从PC一个ping到你的手机？还可以通过Wifi在移动设备上使用导航器并连接到Internet网络？如果答案是肯定的，那么就没有别的办法可以做了。否则，请检查您的移动Wifi连接并确保它连接到正确的接入点/路由器。通过Wifi连接时，您确定手机IP是10.4.0.156吗？ –

是的，我做了一个ping，每件事情都很好，IP 10 ....是通过Wifi连接时的移动IP ... –

您确定通过电缆连接时，此程序有效吗？然后，我们不需要检查代码，但看看我的线程的运行方法，第一行代码表示：while (socket != null && !socket.isClosed())这两种情况在代码写入方式上都是正确的。所以我怀疑它是否适用于Wifi或有线电视。

我想你应该改变这样的线程的代码：

public void run() 
{ 
    try 
    { 
     socket = new DatagramSocket(SERVER_PORT); 
     socket.setSoTimeout(RECEIVING_TIMEOUT_SERVER); 
     DataOut = new byte[1024]; 
     // InetAddress fromaddress = InetAddress.getByName("10.4.0.11"); 
     packetIn = new DatagramPacket(DataOut, DataOut.length); 
     // keep receiving packets, until keepOn set to false 
     while (keepOn) 
     { 
      socket.receive(packetIn); 
      text.append("source port :" + packetIn.getPort() + "\n"); 
      text.append("source address :" + packetIn.getAddress().toString() + "\n"); 
      Log.d("UDP", "Packet receveid");   
      String message = new String(packetIn.getData()); 
      text.append(message +"\n"+ packetIn.getPort() +"\n"+ packetIn.getAddress().toString()); 
      Log.d("UDP", "le message reçu"); 
      Log.d("Message : ", "" + message);   
     } 
    } 
    catch (UnknownHostException exc) 
    { 
     System.out.println("Destinataire inconnu"); 
    } 
    catch (SocketException exc) 
    { 
     System.out.println("Probleme d'ouverture de la socket"); 
    } 
    catch (IOException exc) 
    { 
     System.out.println("Probleme sur la reception du message"); 
    } 
    catch (Exception exc) 
    { 
     exc.printStackTrace(); 
    } 
}

来源

2013-08-19 13:57:03

我做了你说什么，但没有任何改变！ –

udp android服务器无线

回答

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