本文实例讲述了java tcp通信客户端与端。分享给大家供大家参考，具体如下：
由服务器端发送数据
服务器端：
import java.io.*;
import java.net.*;
public class testsocket {
public static void main(string[] args) {
try {
serversocket ss = new serversocket(8888);
while(true) {
socket s = ss.accept();
outputstream os = s.getoutputstream();
dataoutputstream dos = new dataoutputstream(os);
dos.writeutf("hello" s.getinetaddress() "port" s.getport() "beybye");
dos.close();
// os.flush();
os.close();
// s.close();
}
} catch (ioexception e) {
e.printstacktrace();
system.out.println("there is a wrong");
}
}
}
用户端：
import java.io.*;
import java.net.*;
public class testclient {
public static void main(string[] args){
try {
socket s = new socket("127.0.0.1",8888);
datainputstream dis = new datainputstream(s.getinputstream());
system.out.println(dis.readutf());
s.close();
dis.close();
} catch (exception e) {
e.printstacktrace();
}
}
}
无论是客户端还是服务器端都可以收发数据。
交互型
用户端
import java.io.*;
import java.net.*;
public class testclient2 {
public static void main(string[] args){
try {
socket s = new socket("127.0.0.1",8886);
dataoutputstream dos = new dataoutputstream(s.getoutputstream());
datainputstream dis = new datainputstream(s.getinputstream());
system.out.println(dis.readutf());
dos.writeutf("hey");
string str = null;
if((str = dis.readutf()) != null) {
system.out.println(str);
}
s.close();
dis.close();
dos.close();
} catch (exception e) {
e.printstacktrace();
}
}
}
服务器端：
public class testserver2 {
public static void main(string[] args) {
inputstream in = null;
outputstream out = null;
try {
serversocket ss = new serversocket(8886);
while(true) {
socket s = ss.accept();
in = s.getinputstream();
out = s.getoutputstream();
dataoutputstream dos = new dataoutputstream(s.getoutputstream());
datainputstream dis = new datainputstream(s.getinputstream());
string str = null;
if((str = dis.readutf() )!= null) {
system.out.println(str);
system.out.println("form " s.getinetaddress());
system.out.println("port " s.getport());
// dos.writeutf("hello" s.getinetaddress() "port" s.getport() "beybye");
}
dos.writeutf("hi hello");
dis.close();
dos.close();
s.close();
}
} catch (ioexception e) {
e.printstacktrace();
system.out.println("there is a wrong");
}
}
}
