Android通过socket连接服务器（PC）

Server端

package com.test;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Server implements Runnable {
	public static final String SERVERIP = "10.0.2.2";
	public static final int SERVERPORT = 51706;

	public void run() {
		try {
			System.out.println("S: Connecting...");

			ServerSocket serverSocket = new ServerSocket(SERVERPORT);
			while (true) {
			    
			    //等待接受客户端请求 
				Socket client = serverSocket.accept();

				System.out.println("S: Receiving...");
				
				try {

				    //接受客户端信息
					BufferedReader in = new BufferedReader(
							new InputStreamReader(client.getInputStream()));
					
					Socket socket = null;
					
                    //发送消息 
                    PrintWriter out = new PrintWriter(new BufferedWriter( new OutputStreamWriter(client.getOutputStream())),true);
                    
                    //设置返回信息
                    out.println("my name is server"); 
                    out.flush();
                    
                    String str = in.readLine();
                    File file = new File ("C:\\file\\android.txt");
                    FileOutputStream fops = new FileOutputStream(file); 
                    byte [] b = str.getBytes();;
                    for ( int i = 0 ; i < b.length-1; i++ )
                    {
                        fops.write(b[i]);
System.out.println(b.toString());                        
                    }
                    
                    
					System.out.println("S: Received: '" + str + "'");
					

				} catch (Exception e) {

					System.out.println("S: Error");

					e.printStackTrace();

				} finally {

					client.close();
					
					 

					System.out.println("S: Done.");

				}

			}

		} catch (Exception e) {

			System.out.println("S: Error");

			e.printStackTrace();

		}

	}
	
	
	public static void main(String [] args ) {

		Thread desktopServerThread = new Thread(new Server());

		desktopServerThread.start();

	}
}

Client端

package com.lde;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Socket_Android extends Activity {

	private TextView mTextView = null;
	private EditText mEditText = null;
	private TextView tx1 = null;

	private Button mbutton = null;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		mbutton = ( Button ) findViewById(R.id.Button01);
		mEditText = ( EditText ) findViewById( R.string.EditText01);
		mTextView = ( TextView ) findViewById ( R.string.TextView01);
		tx1 = ( TextView ) findViewById ( R.id.tx);
		 
		mbutton.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				setTitle("abcdefg");
				Socket socket = null;
				try {
				    
					// 指定Server的IP地址
					InetAddress serverAddr = InetAddress.getByName("10.0.2.2");// TCPServer.SERVERIP
					
					Log.d("TCP", "C: Connecting...");
					 
					// 应用Server的IP和端口建立Socket对象
					socket = new Socket(serverAddr, 51706);
					String message = "---Test_Socket_Android---";

					Log.d("TCP", "C: Sending: '" + message + "'");

					// 将信息通过这个对象来发送给Server
					PrintWriter out = new PrintWriter(new BufferedWriter(
							new OutputStreamWriter(socket.getOutputStream())),
							true);
					
					//接受服务器信息
					 BufferedReader in = new BufferedReader(
	                            new InputStreamReader(socket.getInputStream()));
					 //得到服务器信息
					 String msg = in.readLine();
					 //在页面上进行显示
					 tx1.setText(msg);
					 
					out.println(msg);
					out.flush();
					
				} catch (Exception e) {

					Log.e("TCP", "S: Error", e);
				} finally {
				    try {
//				    ServerSocket serverSocket = new ServerSocket(51706);
//				    Socket client = serverSocket.accept();
//				    BufferedReader in = new BufferedReader(
//                            new InputStreamReader(client.getInputStream()));
//
//                    String str = in.readLine();
//                    tx1.setText("123");
                    
//                    System.out.println("S: Received: '" + str + "'");
//
//                    System.out.println("S: Received: '" + str + "'");

					
						socket.close();
					} catch (Exception e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
			}
		}

		);
	}
	// public void a () throws IOException
	// {
	// //指定Server的IP地址
	// InetAddress serverAddr =
	// InetAddress.getByName("110.149");//TCPServer.SERVERIP
	// Log.d("TCP", "C: Connecting...");
	//
	// //应用Server的IP和端口建立Socket对象
	// Socket socket = new Socket(serverAddr, 51706);
	// String message = "AndroidRes,Where is my Pig (Android)?";
	// try {
	//
	// Log.d("TCP", "C: Sending: '" + message + "'");
	//
	// //将信息通过这个对象来发送给Server
	// PrintWriter out = new PrintWriter( new BufferedWriter( new
	// OutputStreamWriter(socket.getOutputStream())),true);
	//
	// out.println(message);
	// } catch(Exception e) {
	//
	// Log.e("TCP", "S: Error", e);
	// } finally {
	//
	// socket.close();
	// }
	// }

}

R.java

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * aapt tool from the resource data it found.  It
 * should not be modified by hand.
 */

package com.lde;

public final class R {
    public static final class attr {
    }
    public static final class drawable {
        public static final int icon=0x7f020000;
    }
    public static final class id {
        public static final int Button01=0x7f050000;
        public static final int tx=0x7f050001;
    }
    public static final class layout {
        public static final int main=0x7f030000;
    }
    public static final class string {
        public static final int Button01=0x7f040003;
        public static final int EditText01=0x7f040004;
        public static final int TextView01=0x7f040002;
        public static final int app_name=0x7f040001;
        public static final int hello=0x7f040000;
    }
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <!-- 
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
    --> 
    <TextView 
			 android:layout_width="fill_parent" 
   			 android:layout_height="wrap_content" 
			 android:text="@string/TextView01" />
			
			<EditText 
			android:layout_width="fill_parent"
			android:layout_height="wrap_content"
			android:text="@string/EditText01" />
			
			<Button
			android:id="@+id/Button01"
			android:layout_width="fill_parent"
			android:layout_height="wrap_content"
			android:text="@string/Button01" />
			<TextView android:id="@+id/tx"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>
</LinearLayout>

string.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, Socket_Android!</string>
    <string name="app_name">Socket_Android</string>
      <string name="TextView01">这里显示接受到服务器发来的信息</string>
	 <string name="Button01">测试连接</string>
	 <string name="EditText01">请输入内容</string>
</resources>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.lde"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="5" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".Socket_Android"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
<!-- 一定要加入下面这句话 给它设置上权限-->
    <uses-permission android:name="android.permission.INTERNET" />
</manifest>

评论

1 楼 hujiaqimama 2011-09-29  

client端的第36、37行有误：

     
mEditText = ( EditText ) findViewById( R.string.EditText01);   
mTextView = ( TextView ) findViewById ( R.string.TextView01);

 

应改为：

     
mEditText = ( EditText ) findViewById( R.[color=darkblue]id[/color].EditText01);   
mTextView = ( TextView ) findViewById ( R.[color=darkblue]id[/color].TextView01);