之前寫過(guò)PC與Android之間通過(guò)WIFI通信(通過(guò)Socket,可以在博客里面搜索),PC作為主機(jī),Android作為客戶機(jī),現(xiàn)在手頭有一臺(tái)儀器通過(guò)wifi傳輸數(shù)據(jù),如果儀器作為主機(jī)發(fā)射WIFI熱點(diǎn)信號(hào),Android需要連接到該熱點(diǎn)才能進(jìn)一步進(jìn)行通信,但是由于主機(jī)并沒(méi)有連接到網(wǎng)絡(luò),所以在該種情況下Android設(shè)備無(wú)法使用網(wǎng)絡(luò)實(shí)現(xiàn)相關(guān)的網(wǎng)絡(luò)服務(wù)(比如關(guān)鍵數(shù)據(jù)的上傳,網(wǎng)絡(luò)數(shù)據(jù)的獲取等等),所以儀器在開(kāi)始設(shè)計(jì)的時(shí)候?qū)⑵渥鳛榭蛻舳耍珹ndroid設(shè)備作為主機(jī)(網(wǎng)上的相關(guān)資料大多是將Android設(shè)備作為客戶端),當(dāng)Android設(shè)備開(kāi)啟熱點(diǎn)后,儀器會(huì)主動(dòng)嘗試連接固定的熱點(diǎn)信息,其中網(wǎng)絡(luò)SSID和密碼已經(jīng)寫死了,所以需要手機(jī)端手動(dòng)修改熱點(diǎn)名稱:
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在開(kāi)啟熱點(diǎn)之后,此時(shí)手機(jī)相當(dāng)于一個(gè)路由器,這個(gè)路由器的IP地址是固定的(本人測(cè)試過(guò)3臺(tái)Android設(shè)備,其默認(rèn)的路由器地址:192.168.43.1,iPhone的默認(rèn)路由器地址:172.20.10.1),這個(gè)Demo主要實(shí)現(xiàn)的目標(biāo)是Android設(shè)備客戶端發(fā)送信息,服務(wù)端接受到信息后再發(fā)送信息給客戶端。那么Android設(shè)備創(chuàng)建的SocketServer代碼如下:
只有一個(gè)按鈕,實(shí)現(xiàn)在線程中啟動(dòng)相對(duì)應(yīng)的服務(wù),所以在這里就不上圖了,直接放代碼:
package com.example.socketserver;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import com.koushikdutta.async.callback.CompletedCallback;
import com.koushikdutta.async.http.WebSocket;
import com.koushikdutta.async.http.WebSocket.StringCallback;
import com.koushikdutta.async.http.libcore.RequestHeaders;
import com.koushikdutta.async.http.server.AsyncHttpServer;
import com.koushikdutta.async.http.server.AsyncHttpServer.WebSocketRequestCallback;
import com.koushikdutta.async.http.server.AsyncHttpServerRequest;
import com.koushikdutta.async.http.server.AsyncHttpServerResponse;
import com.koushikdutta.async.http.server.HttpServerRequestCallback;
public class MainActivity extends Activity {
private Button btnStart;
private ServerSocket serverSocket;
private BufferedReader in;
private PrintWriter out;
private Handler hander = new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
String s = (String)msg.obj;
Toast.makeText(MainActivity.this, s, Toast.LENGTH_LONG).show();
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnStart = (Button)findViewById(R.id.button1);
btnStart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new ServerThread().start();//在新線程中啟動(dòng)SocketServer...
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
}
private class ServerThread extends Thread{
@Override
public void run() {
// TODO Auto-generated method stub
super.run();
try {
// serverSocket = new ServerSocket(50005);//默認(rèn)的路由器地址為Address: 192.168.43.1
serverSocket = new ServerSocket(5000);
while (true) {
Socket clientSocket = serverSocket.accept();//阻塞等待處理...
String remoteIP = clientSocket.getInetAddress().getHostAddress();
int remotePort = clientSocket.getLocalPort();
System.out.println("A client connected. IP:" + remoteIP+ ", Port: " + remotePort);
System.out.println("server: receiving.............");
// 獲得 client 端的輸入輸出流,為進(jìn)行交互做準(zhǔn)備
in = new BufferedReader(new InputStreamReader(
clientSocket.getInputStream()));
out = new PrintWriter(clientSocket.getOutputStream(), false);
// 獲得 client 端發(fā)送的數(shù)據(jù)
String tmp = in.readLine();
// String content = new String(tmp.getBytes("utf-8"));
System.out.println("Client message is: " + tmp);
// 向 client 端發(fā)送響應(yīng)數(shù)據(jù)
out.println("Your message has been received successfully!.");
// 關(guān)閉各個(gè)流
out.close();
in.close();
Message message = hander.obtainMessage();
message.obj=tmp;
hander.sendMessage(message);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
客戶端實(shí)現(xiàn)的代碼與網(wǎng)上相關(guān)的資料相差無(wú)幾,比較簡(jiǎn)單:
package com.example.serverclient;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;
import java.net.UnknownHostException;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
private Button sendBtn,sendMessageBtn;
private Socket socket;
private PrintStream output;
private BufferedInputStream bufferedInputStream;
private ReadThread readThread;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sendBtn = (Button) findViewById(R.id.button1);
sendMessageBtn = (Button) findViewById(R.id.button2);
sendBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new Thread(runnable).start();//開(kāi)啟線程
}
});
sendMessageBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
sendMessage("hello,i am from client message");
}
});
}
Runnable runnable = new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
initClientSocket();
readThread = new ReadThread();
readThread.start();
}
};
public void initClientSocket() {
try {
socket = new Socket("192.168.43.1", 5000);
output = new PrintStream(socket.getOutputStream(), true, "gbk");
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
System.out.println("請(qǐng)檢查端口號(hào)是否為以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持創(chuàng)新互聯(lián)。
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