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public class Client {
// public static final String IP_ADDR = "58.32.247.2";//服务器地址
public static final String IP_ADDR = "202.121.118.94";//实验室服务器地址
// public static final String IP_ADDR = "localhost";
// public static final String IP_ADDR = "127.0.0.1";
public static final int PORT = 5005;//服务器端口号
public static void main(String[] args) {
System.out.println("客户端启动...");
while (true) {
Socket socket = null;
try {
//创建一个流套接字并将其连接到指定主机上的指定端口号
socket = new Socket(IP_ADDR, PORT);
while(true) {
//读取服务器端数据
DataInputStream input = new DataInputStream(socket.getInputStream());
String ret = input.readUTF();
System.out.println("服务器端: " + ret);
// 如接收到 "OK" 则断开连接
if ("OK".equals(ret)) {
System.out.println("客户端将关闭连接");
Thread.sleep(500);
break;
}
}
}
catch (Exception e) {
System.out.println("客户端异常:" + e.getMessage());
}
这样改?
也不行,看反应应该是连上了,但是数据弄不出来。
public class Client {
// public static final String IP_ADDR = "58.32.247.2";//服务器地址
public static final String IP_ADDR = "202.121.118.94";//实验室服务器地址
// public static final String IP_ADDR = "localhost";
public static final int PORT = 5005;//服务器端口号
public static void main(String[] args) {
System.out.println("客户端启动...");
while (true) {
Socket socket = null;
try {
//创建一个流套接字并将其连接到指定主机上的指定端口号
socket = new Socket(IP_ADDR, PORT);
//读取服务器端数据
DataInputStream input = new DataInputStream(socket.getInputStream());
String ret = input.readUTF();
System.out.println("服务器端: " + ret);
// 如接收到 "OK" 则断开连接
if ("OK".equals(ret)) {
System.out.println("客户端将关闭连接");
Thread.sleep(500);
break;
}
input.close();
}
catch (Exception e) {
System.out.println("客户端异常:" + e.getMessage());
}
finally {
if (socket != null) {
try {
socket.close();
}
catch (IOException e) {
socket = null;
System.out.println("客户端 finally 异常:" + e.getMessage());
}
}
}
}
}
}
服务器
public class Server {
public static final int PORT = 5005;//监听的端口号
public static void main(String[] args) {
System.out.println("服务器启动...\n");
Server server = new Server();
server.init();
}
public void init() {
try {
ServerSocket serverSocket = new ServerSocket(PORT);
while (true) {
// 一旦有堵塞, 则表示服务器与客户端获得了连接
Socket client = serverSocket.accept();
// 处理这次连接
new HandlerThread(client);
}
} catch (Exception e) {
System.out.println("服务器异常: " + e.getMessage());
}
}
private class HandlerThread implements Runnable {
private Socket socket;
public HandlerThread(Socket client) {
socket = client;
new Thread(this).start();
}
public void run() {
try {
DataOutputStream out = new DataOutputStream(socket.getOutputStream());
System.out.print("请输入:\t");
// 发送键盘输入的一行
String s = new BufferedReader(new InputStreamReader(System.in)).readLine();
out.writeUTF(s);
out.close();
}
catch (Exception e) {
System.out.println("服务器 run 异常: " + e.getMessage());
}
finally {
if (socket != null) {
try {
socket.close();
}
catch (Exception e) {
socket = null;
System.out.println("服务端 finally 异常:" + e.getMessage());
}
}
}
}
}
}