I'm trying to connect two MacBooks using Java network programming, one is a server and the other is a client. In server, I wrote something like
ServerSocket s = new ServerSocket(8008);
and then in my client computer I wrote
hostname = "Alex";
Socket socket = new Socket(hostname, 8008);
where "Alex"
is the computer name of my server, found in System Preference -> Sharing -> Computer Name, as shown in the screenshot . However when I run the script on client I got the following error message:
error: Alex
java.net.UnknownHostException: Alex
at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:564)
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327)
at java.base/java.net.Socket.connect(Socket.java:633)
at java.base/java.net.Socket.connect(Socket.java:583)
at java.base/java.net.Socket.<init>(Socket.java:507)
at java.base/java.net.Socket.<init>(Socket.java:287)
at EchoClient.main(EchoClient.java:9)
It seems that the hostname of my server is not recognized. Then where should I look up the hostname of my server computer?
Thanks!
If you are a Linux system, add a record in /etc/hosts. If you are a Windows system, add a record in C:\windows\system32\drivers\etc\hosts 127.0.0.1 Alex::1 Alex
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.