java的Socket编程实现客户端与服务端的通信-----------高级类实现通信Scanner控制台输入流，PrintWriter控制台输出流
import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
public class DemoHighServer {
public static void main(String[] args) {
// 使用高级类实现通信 Scanner;PrintWriter;
try {
ServerSocket st =new ServerSocket(9999);
System.out.println("服务端已就绪！等待用户······");
Socket socket = st.accept();
Scanner scan =new Scanner(socket.getInputStream());//控制台输入流
PrintWriter pw = new PrintWriter(socket.getOutputStream());//控制台输出流
pw.println("前世的五百次回眸·");
pw.flush();
String str =scan.nextLine();//读取控制台的录入
System.out.println("客户说："+str);
System.out.println("用户已加入！");
}catch(IOException e) {
}
}
}
//*********************************************
import java.io.IOException;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.Scanner;
public class DemohighClient {
public static void main(String[] args) {
// 高级类实现
try {
Socket socket = new Socket("127.0.0.1",9999);
System.out.println("快乐的与服务器连接上了、");
Scanner scan = new Scanner(socket.getInputStream());
PrintWriter pw = new PrintWriter(socket.getOutputStream());
String str = scan.nextLine();
System.out.println("服务器说："+str);
System.out.println("输入要发给服务端的内容：");
pw.println("只为换取今世的一次邂逅。");
pw.flush();
}catch(IOException a) {
}
}
}
