我有一个 android 应用程序,我想向我的 `public class ActivitymainActivity extends Activity { 发送一个简单的命令
private TextView textview;
private Button button;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activitymain);
textview=(TextView) findViewById(R.id.EmailCount);
button=(Button) findViewById(R.id.button1);
textview.setText("Going in");
try{
Socket socket = new Socket("192.168.1.66", 2727);
OutputStream out = socket.getOutputStream();
PrintWriter output = new PrintWriter(out);
textview.setText("Sending Data to PC");
output.println("Hello from Android");
output.flush();
output.close();
textview.setText("Data sent to PC");
socket.close();
textview.setText("Socket closed");
}
catch(Exception e){System.out.print(e+"shacso");}
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
textview.setText("Trying to send");
try{
Socket socket = new Socket("192.168.1.66", 2727);
OutputStream out = socket.getOutputStream();
PrintWriter output = new PrintWriter(out);
textview.setText("Sending Data to PC");
output.println("Checking Email now:D");
output.flush();
output.close();
textview.setText("Data sent to PC");
socket.close();
textview.setText("Socket closed"); }
catch(Exception e){System.out.print(e+"");}
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activitymain, menu);
return true;
}
} `
这是我的清单:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.emailclient"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".ActivitymainActivity"
android:label="@string/title_activity_activitymain" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
但是,我无法在服务器上接收任何内容。从Play商店下载了一个名为“UDP TCP Server”的应用程序,它将数据包发送到指定的IP和端口,我能够将发送的数据发送到我的服务器。我的代码有什么问题吗?
代码说明:发送数据去应用程序午餐和单击按钮时
谢谢 :)