服务端server
package com.test.socket;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
/*
* socket服务类
*/
public class SocketServer {
public static void main(String[] args) throws Exception {
// 监听指定的端口
int port = 8903;
ServerSocket server = new ServerSocket(port);
// server将一直等待连接的到来
System.out.println("server将一直等待连接的到来");
Socket socket = server.accept();
// 建立好连接后,从socket中获取输入流,并建立缓冲区进行读取
InputStream inputStream = socket.getInputStream();
byte[] bytes = new byte[1024];
int len;
StringBuilder sb = new StringBuilder();
//只有当客户端关闭它的输出流的时候,服务端才能取得结尾的-1
while ((len = inputStream.read(bytes)) != -1) {
// 注意指定编码格式,发送方和接收方一定要统一,建议使用UTF-8
sb.append(new String(bytes, 0, len, "UTF-8"));
}
System.out.println("get message from client: " + sb);
OutputStream outputStream = socket.getOutputStream();
outputStream.write("Hello Client,I get the message.".getBytes("UTF-8"));
inputStream.close();
outputStream.close();
socket.close();
server.close();
}
}
客户端client
package com.test.socket;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
public class SocketClient {
public static void main(String args[]) throws Exception {
// 要连接的服务端IP地址和端口
String host = "127.0.0.1";
int port = 8903;
// 与服务端建立连接
Socket socket = new Socket(host, port);
// 建立连接后获得输出流
OutputStream outputStream = socket.getOutputStream();
String message = "你好 yiwangzhibujian";
socket.getOutputStream().write(message.getBytes("UTF-8"));
//通过shutdownOutput高速服务器已经发送完数据,后续只能接受数据
socket.shutdownOutput();
InputStream inputStream = socket.getInputStream();
byte[] bytes = new byte[1024];
int len;
StringBuilder sb = new StringBuilder();
while ((len = inputStream.read(bytes)) != -1) {
//注意指定编码格式,发送方和接收方一定要统一,建议使用UTF-8
sb.append(new String(bytes, 0, len,"UTF-8"));
}
System.out.println("get message from server: " + sb);
inputStream.close();
outputStream.close();
socket.close();
}
}