Android套接字应用程序在模拟器上运行但不在设备上运行

Question

i am working on a application in which the application has to connect to the java class using socket programming. The application is working fine in the android emulator but it is not working on my device. There is no socket connectivity between my device and computer when i run it on my device. I am including some of my code for socket connection here please check and suggest me some solutions. its urgent..!!

try {
    socket = new Socket(InetAddress.getByName("vivek-PC")
            .getHostAddress(), 8888);

    dataOutputStream = new DataOutputStream(socket.getOutputStream());
    dataInputStream = new DataInputStream(socket.getInputStream());
} catch (UnknownHostException e) {
    // textIn.setText("Button Clicked" + e);
    e.printStackTrace();
} catch (IOException e) {

    e.printStackTrace();

}

Answer 1

好吧，我认为你应该首先检查你的设备和你的服务器 - PC之间的连接，在你的设备上安装Android终端模拟器应用程序并用您的服务器IP地址ping它...然后尝试连接您的设备与服务器...希望你会成功......

Answer 2

因为您的Android使用不使用名称vivekpc的wifi，请尝试将vivekpc更改为您设备的wifi名称。

Answer 3

There is no socket connectivity between my device and computer when i run it on my device.

You are trying to connect localhost on your PC here:

InetAddress.getByName("vivek-PC").getHostAddress()

If there is no connection between your PC and device, it's so natural that it will fall into UnknownHostException part and not work on your device.