以下介绍:简单的socket发送消息,服务的Server 相互 客户端Client,进行简单的传递消息:
服务端代码:
package test;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
/**
* 服务器连接的Socket
*/
public static ServerSocket cServerSocket;
/**
* 连接
*/
public static Socket cSocket;
/**
* 端口
*/
public static final int PORT = 8888;
public static void main(String[] args) {
DataInputStream dis = null;
DataOutputStream dos = null;
try {
cServerSocket = new ServerSocket(PORT);
while (true) {
System.out.println("正在等待客户连接...");
// 这里处于等待状态,如果没有客户端连接,程序不会向下执行
cSocket = cServerSocket.accept();
dis = new DataInputStream(cSocket.getInputStream());
dos = new DataOutputStream(cSocket.getOutputStream());
// 读取数据
String clientStr = dis.readUTF();
String msg = "已收到信息:"+clientStr;
// 写出数据
dos.writeUTF(msg);
System.out.println(msg);
System.out.println("---客户端信息打印,IP:"
+ cSocket.getInetAddress()
+ " Prot:" + cSocket.getPort());
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (dis != null) {
dis.close();
}
if (dos != null) {
dos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
客户端代码:
private Socket cSocket;
// 服务器server/IP地址(当前PC的IP地址)
private final String ADDRESS = "192.168.8.2";
// 服务器端口
private final int PORT = 8888;
cThread = new Thread() {
@Override
public void run() {
super.run();
DataInputStream dis = null;
DataOutputStream dos = null;
try {
// 阻塞函数,正常连接后才会向下继续执行
cSocket = new Socket(ADDRESS, PORT);
dis = new DataInputStream(cSocket.getInputStream());
dos = new DataOutputStream(cSocket.getOutputStream());
// 向服务器写数据
dos.writeUTF("hello socket...");
// 读取服务器发来的数据
cContent += dis.readUTF();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (dis != null) {
dis.close();
}
if (dos != null) {
dos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
};
cThread.start();
运行效果:
谢谢大家的观看,更多精彩技术博客,会不断的更新,请大家访问,
刘德利CSDN博客, http://blog.csdn.net/u011967006