我在我的Android设备上创建了一个简单的ServerSocket应用程序我使用telnet进行连接并且它工作正常(发送的消息显示在我的logcat窗口中)。 Probl; em是当我尝试从php页面建立连接时(我也使用PHP套接字)。 Android套接字接受第一个连接然后是奇怪的东西 - 有时他读取从PHP发送的消息并在logcat中显示它们但通常它只接受第一个请求和trhen ...没有
ANDROID SIDE代码:
public class TestSocketActivity extends Activity {
private ServerSocket ss;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setSocket();
}
public void setSocket() {
try {
ss = new ServerSocket(7000);
System.out.println("Started");
} catch (IOException e) {
// TODO Auto-generated catch block
System.out.println("Accept failed: 4444");
e.printStackTrace();
}
Socket clientSocket = null;
try {
clientSocket = ss.accept();
String s = clientSocket.getRemoteSocketAddress().toString();
System.out.println(s);
} catch (IOException e) {
// TODO Auto-generated catch block
System.out.println("SS error");
e.printStackTrace();
}
try {
BufferedReader in =
new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String inputLine, outputLine;
while ((inputLine = in.readLine()) != null) {
Toast.makeText(getApplicationContext(),"test",1).show();
System.out.println("in: "+inputLine);
}
ss.close();
setSocket();
}
catch (IOException e) {
// TODO Auto-generated catch block
System.out.println("error");
e.printStackTrace();
}
}
}
这是一个简单的PHP请求:
<?php
error_reporting(E_ALL);
$address = '192.168.0.180';
$port = 7000;
$socket = socket_create(AF_INET, SOCK_STREAM, 0);
$result = socket_connect($socket, $address, $port);
$in = mktime();
socket_write($socket, $in, strlen($in));
socket_close($socket);
?>
......就是这样 也许有一些更容易的沟通(我需要每次都从PHP连接到Android设备,所以PHP不能等待Android的请求)。
感谢您的帮助。
答案 0 :(得分:1)
您确实意识到您的Android ServerSocket应该维护一个等待传入连接的“无限”循环,通过读取请求来处理请求,直到到达流的末尾,然后返回等待另一个传入请求的状态。 / p>
执行以下操作:
public void start() throws IOException {
serverSocket = new ServerSocket(port);
running = true;
while(running) {
Socket connectionSocket = null;
InputStream input = null;
OutputStream output = null;
try {
connectionSocket = serverSocket.accept();
input = connectionSocket.getInputStream();
output = connectionSocket.getOutputStream();
// At this point do whatever you need to do with these streams
} catch(Exception e) {
throw new RuntimeException(e);
} finally {
if(input != null) {
input.close();
}
if(output != null) {
output.close();
}
if(connectionSocket != null) {
connectionSocket.close();
}
}
}
serverSocket.close();
serverSocket = null;
}
让此方法在单独的线程中运行,因此它不会阻止UI线程。一旦用户请求或您的Activity停止,您应该将运行变量设置为false,以便服务器正常停止。