java编程中,Socket通信是怎么实现的?
发布网友
发布时间：2022-04-25 02:35
共3个回答
热心网友
时间：2022-04-28 10:10
java编程对于Socket之间的通信过程如下：
服务端往Socket的输出流里面写东西，客户端就可以通过Socket的输入流读取对应的内容。Socket与Socket之间是双向连通的，所以客户端也可以往对应的Socket输出流里面写东西，然后服务端对应的Socket的输入流就可以读出对应的内容。下面来看一些服务端与客户端通信的例子：
public class Server {public static void main(String args[]) throws IOException {
//为了简单起见，所有的异常信息都往外抛
int port = 89;
//定义一个ServerSocket监听在端口89上
ServerSocket server = new ServerSocket(port);
//server尝试接收其他Socket的连接请求，server的accept方法是阻塞式的
Socket socket = server.accept();
//跟客户端建立好连接之后，我们就可以获取socket的InputStream，并从中读取客户端发过来的信息了。
Reader reader = new InputStreamReader(socket.getInputStream());
char chars[] = new char[];
int len;
StringBuilder sb = new StringBuilder();
while ((len=reader.read(chars)) != -1) {
sb.append(new String(chars, 0, len));
}
System.out.println("from client: " + sb);
reader.close();
socket.close();
server.close();
}
}
客户端代码
Java代码 public class Client {
public static void main(String args[]) throws Exception {
//为了简单起见，所有的异常都直接往外抛
String host = "127.0.0.1"; //要连接的服务端IP地址
int port = 89; //要连接的服务端对应的监听端口
//与服务端建立连接
Socket client = new Socket(host, port);
//建立连接后就可以往服务端写数据了
Writer writer = new OutputStreamWriter(client.getOutputStream());
writer.write("Hello Server.");
writer.flush();//写完后要记得flush
writer.close();
client.close();
}
}
热心网友
时间：2022-04-28 11:28
一般的教程都是说，2台机器通过套接字建立一个管道连接，然后遵循tcp/ip进行通信
热心网友
时间：2022-04-28 13:03
Server端程序:
package test;
import java.net.*;
import java.io.*;
public class Server
{
private ServerSocket ss;
private Socket socket;
private BufferedReader in;
private PrintWriter out;
public Server()
{
try
{
ss=new ServerSocket(10000);
while(true)
{
socket = ss.accept();
String RemoteIP = socket.getInetAddress().getHostAddress();
String RemotePort = ":"+socket.getLocalPort();
System.out.println("A client come in!IP:"+RemoteIP+RemotePort);
in = new BufferedReader(new
InputStreamReader(socket.getInputStream()));
String line = in.readLine();
System.out.println("Cleint send is :" + line);
out = new PrintWriter(socket.getOutputStream(),true);
out.println("Your Message Received!");
out.close();
in.close();
socket.close();
}
}catch (IOException e)
{
out.println("wrong");
}
}
public static void main(String[] args)
{
new Server();
}
};
Client端程序:
package test;
import java.io.*;
import java.net.*;
public class Client
{
Socket socket;
BufferedReader in;
PrintWriter out;
public Client()
{
try
{
System.out.println("Try to Connect to 127.0.0.1:10000");
socket = new Socket("127.0.0.1",10000);
System.out.println("The Server Connected!");
System.out.println("Please enter some Character:");
BufferedReader line = new BufferedReader(new
InputStreamReader(System.in));
out = new PrintWriter(socket.getOutputStream(),true);
out.println(line.readLine());
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
System.out.println(in.readLine());
out.close();
in.close();
socket.close();
}catch(IOException e)
{
out.println("Wrong");
}
}
public static void main(String[] args)
{
new Client();
}
};
