我是java中socket编程的新手。在运行客户端代码时,我面临这些异常。我不明白如何克服它! 这是我的客户代码
import java.io.*;
import java.net.*;
public class SOCK_1_CLIENT {
public static void main(String[] args) throws Exception {
SOCK_1_CLIENT client = new SOCK_1_CLIENT();
client.run();
}
public void run() throws Exception
{
Socket sock = new Socket("local host",5050);
PrintStream ps = new PrintStream(sock.getOutputStream());
ps.println("Hello to server from client");
InputStreamReader ir = new InputStreamReader(sock.getInputStream());
BufferedReader br = new BufferedReader(ir);
String msg = br.readLine();
System.out.println(msg);
}
}
这些是例外.. !!
Exception in thread "main" java.net.UnknownHostException: local host
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at SOCK_1_CLIENT.run(SOCK_1_CLIENT.java:18)
at SOCK_1_CLIENT.main(SOCK_1_CLIENT.java:11)
答案 0 :(得分:4)
将local host
替换为localhost
。