我叫什么干什么的我还是我不知道
分类: Java
2015-06-09 14:46:37
服务器
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
public class MyServer{
public static void main(String args[]) {
try{
ServerSocket server=null;
try{
server=new ServerSocket(4700);
//创建一个ServerSocket在端口4700监听客户请求
}catch(Exception e) {
System.out.println("can not listen to:"+e.getMessage());
//出错,打印出错信息
}
System.out.println("Server waiting");
Socket socket=null;
try{
socket=server.accept();
//使用accept()阻塞等待客户请求,有客户
//请求到来则产生一个Socket对象,并继续执行
}catch(Exception e) {
System.out.println("Error."+e);
//出错,打印出错信息
}
String line;
//由Socket对象得到输入流,并构造相应的BufferedReader对象
BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
//由Socket对象得到输出流,并构造PrintWriter对象
PrintWriter os=new PrintWriter(socket.getOutputStream());
//由系统标准输入设备构造BufferedReader对象
BufferedReader sin=new BufferedReader(new InputStreamReader(System.in));
//在标准输出上打印从客户端读入的字符串
System.out.println("Client:"+is.readLine());
System.out.print("Server:");
//从标准输入读入一字符串
line=sin.readLine();
//如果该字符串为 "bye",则停止循环
while(!line.equals("bye")){
//向客户端输出该字符串
os.println(line);
//刷新输出流,使Client马上收到该字符串
os.flush();
//在系统标准输出上打印读入的字符串
//System.out.println("Server:"+line);
//从Client读入一字符串,并打印到标准输出上
System.out.println("Client:"+is.readLine());
System.out.print("Server:");
//从系统标准输入读入一字符串
line=sin.readLine();
}//继续循环
os.close(); //关闭Socket输出流
is.close(); //关闭Socket输入流
socket.close(); //关闭Socket
server.close();//关闭ServerSocket
}catch(IOException e){
System.out.println("Error occur:"+e);//打印出错信息
}
}
}
客户端
import java.io.*;
import java.net.*;
public class MyClient {
public static void main(String args[]) {
try{
Socket socket=new Socket("127.0.0.1",4700);
//向本机的4700端口发出客户请求
BufferedReader sin=new BufferedReader(new InputStreamReader(System.in));
//由系统标准输入设备构造BufferedReader对象
PrintWriter os=new PrintWriter(socket.getOutputStream());
//由Socket对象得到输出流,并构造PrintWriter对象
BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
//由Socket对象得到输入流,并构造相应的BufferedReader对象
System.out.print("Client:");
String readStr;
readStr=sin.readLine(); //从系统标准输入读入一字符串
//若从标准输入读入的字符串为 "bye"则停止循环
while(!readStr.equals("bye")){
//将从系统标准输入读入的字符串输出到Server
os.println(readStr);
//刷新输出流,使Server马上收到该字符串
os.flush();
//System.out.println("Client:"+readStr);
//在系统标准输出上打印读入的字符串
System.out.println("Server:"+is.readLine());
System.out.print("Client:");
//从Server读入一字符串,并打印到标准输出上
readStr=sin.readLine(); //从系统标准输入读入一字符串
} //继续循环
os.close(); //关闭Socket输出流
is.close(); //关闭Socket输入流
socket.close(); //关闭Socket
}catch(Exception e){
System.out.println("Error occur: "+ e);
}
}
}