how to connect sockets using static ip java

问题

I want to know if I can Connect Java sockets using a static IP Address. I've recently bought static IP from my ISP and I want to connect a Client Program that use Java socket with my laptop (as a server). I've tried it before in a closed network and it work normally, but when I've tried it with distributed network it doesn't work. Here is a piece of my code

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Server :

ServerSocket serverSocket = new ServerSocket(5432);    
Socket client = serverSocket.accept();

Client :

Socket socket = new Socket(IP,5432);

The problem is what should the IP be ? The Static IP or the IPV4 ?

回答1:

Assuming the static IP you bought is publicly routable (i.e. not 10.x.x.x, 172.16.x.x-172.31.x.x or 192.168.x.x) and that your routers / firewalls allow access to this IP from the public Internet, you should be able to access that IP from anywhere.

来源：https://stackoverflow.com/questions/32487467/how-to-connect-sockets-using-static-ip-java