我正在尝试在Android上实现一个TCP客户端应用。当我尝试连接我的C++服务器时，套接字在尝试连接服务器时超时。
我的代码：
new Thread(new ClientThread()).start();
try
{
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket.getOutputStream())), true);
out.println("Test message.");
}
catch (Exception e)
{
// ERROR1
e.printStackTrace();
}
...
class ClientThread implements Runnable
{
@Override
public void run()
{
try
{
InetAddress serverAddr = InetAddress.getByName("192.168.1.116");
socket = new Socket(serverAddr, 9000);
}
catch (Exception e)
{
// ERROR2
e.printStackTrace();
}
}
}
首先，会出现ERROR1（socket为null）的错误，然后会出现ERROR2（连接超时）。服务器正常工作，我已经通过不同的客户端进行了测试。 我有“uses-permission”，所以这不应该是问题。
编辑： ERROR2的堆栈：
05-17 02:26:50.789: W/System.err(26625): java.net.ConnectException: failed to connect to /192.168.1.116 (port 9000): connect failed: ETIMEDOUT (Connection timed out)
05-17 02:26:50.789: W/System.err(26625): at libcore.io.IoBridge.connect(IoBridge.java:114)
05-17 02:26:50.789: W/System.err(26625): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
05-17 02:26:50.789: W/System.err(26625): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
05-17 02:26:50.789: W/System.err(26625): at java.net.Socket.startupSocket(Socket.java:566)
05-17 02:26:50.789: W/System.err(26625): at java.net.Socket.<init>(Socket.java:225)
05-17 02:26:50.789: W/System.err(26625): at cz.gclient.gardenclient.MainActivity$ClientThread.run(MainActivity.java:153)
05-17 02:26:50.789: W/System.err(26625): at java.lang.Thread.run(Thread.java:841)
05-17 02:26:50.789: W/System.err(26625): Caused by: libcore.io.ErrnoException: connect failed: ETIMEDOUT (Connection timed out)
05-17 02:26:50.789: W/System.err(26625): at libcore.io.Posix.connect(Native Method)
05-17 02:26:50.789: W/System.err(26625): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
05-17 02:26:50.789: W/System.err(26625): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
05-17 02:26:50.789: W/System.err(26625): at libcore.io.IoBridge.connect(IoBridge.java:112)
05-17 02:26:50.789: W/System.err(26625): ... 6 more