Java实现小型英汉互译服务器

你是不是对于网上英译汉的功能所感到神奇，下面我将带你去实现小型的英汉互译服务器，让我们一起揭开英汉互译神秘 的面纱吧！

package net.Socket;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;
import java.util.HashMap;
import java.util.Map;


public class UDPServerConver {
          
   
    private DatagramSocket datagramSocket = null ;
    private static Map<String,String> map = new HashMap<String, String>();
    //表示程序启动时会执行的静态代码块   这里也是这个英汉互译服务器能够搜索到的字符
    static {
          
   
        map.put("cat","猫");
        map.put("dog","狗");
        map.put("pig","猪");
        map.put("animal","动物");
        map.put("fish","鱼");
        map.put("bird","鸟");
        map.put("king","国王");
    }
    public UDPServerConver(int port) throws SocketException {
          
   
        datagramSocket = new DatagramSocket(port);
    }
    public void start() throws IOException {
          
   
        System.out.println("英汉互译服务器启动成功~");
        while (true) {
          
   
            DatagramPacket requestDatagramPacket = new DatagramPacket(
                    new byte[4096],4096
            );
            //2.1 阻塞获取客户端请求
            datagramSocket.receive(requestDatagramPacket);
            //2.2 接收到客户端的请求
            String requestContext = new String(requestDatagramPacket.getData()).trim();
            //2.3 翻译
            String responseContext = process(requestContext);
            //2.4 处理字符串返回
            DatagramPacket responseDatagramPacket = new DatagramPacket(
                    responseContext.getBytes(),responseContext.getBytes().length,
                    requestDatagramPacket.getAddress(),requestDatagramPacket.getPort()
            );
            datagramSocket.send(responseDatagramPacket);
        }
    }

    private String process(String requestContext) {
          
   
    	//英译汉
        if (map.containsKey(requestContext)) {
          
   
            return map.get(requestContext);
        }
        //汉译英
        if (map.containsValue(requestContext)) {
          
   
            for (Map.Entry<String, String> entry : map.entrySet()
            ) {
          
   
                if (entry.getValue().equals(requestContext)) {
          
   
                    return entry.getKey();
                }
            }
        }
        //map中未录入
        return "英汉互译服务器没有查询信息";
    }
}

下面是客户端的代码

package net.Socket;

import java.io.IOException;
import java.net.*;
import java.util.Scanner;

public class UDPClient {
          
   
    private DatagramSocket datagramSocket = null ;
    public UDPClient () throws UnknownHostException, SocketException {
          
   
        datagramSocket = new DatagramSocket();
    }
    public void start(String serverIP , int serverPort) throws IOException {
          
   
        //进入主循环执行相应的流程
        Scanner scanner = new Scanner(System.in);
        while (true) {
          
   
            System.out.print("请输入信息->");
            //2.1 得到用户输入的字符串
            String requestContext = scanner.nextLine();
            //构建传输的对象
            DatagramPacket requestDatagramPacket = new DatagramPacket(
                    requestContext.getBytes(),requestContext.getBytes().length
                    ,InetAddress.getByName(serverIP),serverPort //服务器IP ，端口号
            );
            //2.2将命令发送给服务器
            datagramSocket.send(requestDatagramPacket);
            //2.3 等待服务器响应
            DatagramPacket responsePacket = new DatagramPacket(
                    new byte[4096],4096
            );
            datagramSocket.receive(responsePacket);
            String responseContext = new String(responsePacket.getData());
            System.out.println("服务器响应结果："+responseContext);
        }
    }