一个关于swing实时翻译的java文件

        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.9</version>
        </dependency>

package translation;

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Api {
    String baseUrl = "https://fanyi-api.baidu.com/api/trans/vip/translate";
    String from = "auto";
    String to = "zh";
    String appid = "填你自己申请的";
    String salt = "填你自己申请的";
    String sign ;
    String answer="";
    public boolean choose_language(String to){
        if(to == null){
            return true;
        }
        else if(to.equals("中文")){
            this.to = "zh";
            return true;
        }
        else if(to.equals("英文")){
            this.to = "en";
            return true;
        }
        else if(to.equals("日文")){
            this.to = "jp";
            return true;
        }
        else if(to.equals("泰文")){
            this.to = "th";
            return true;
        }
        else if(to.equals("粤语")){
            this.to = "yue";
            return true;
        }
        else {
            return false;
        }
    }

    public boolean get(String q) {
        try {
            // 创建 URL 对象
            System.out.println(q);
            if(q == null){
                q = "";
            }
            this.sign = MD5(appid+q+salt+"FA0i9T87VzmfD_p7QmTW");
            String urlWithParams = this.baseUrl + "?q=" + URLEncoder.encode(q, "UTF-8") +
                    "&from=" + URLEncoder.encode(this.from, "UTF-8") +
                    "&to=" + URLEncoder.encode(this.to, "UTF-8") +
                    "&appid=" + URLEncoder.encode(this.appid, "UTF-8") +
                    "&salt=" + URLEncoder.encode(this.salt, "UTF-8") +
                    "&sign=" + URLEncoder.encode(this.sign, "UTF-8");

            System.out.println(urlWithParams);
            URL url = new URL(urlWithParams);

            // 创建 HttpURLConnection 对象
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            // 设置请求方法（GET、POST 等）
            connection.setRequestMethod("GET");

//                // 可选：设置请求头部信息
//                connection.setRequestProperty("Content-Type", "application/json");
//                connection.setRequestProperty("Authorization", "Bearer YourAccessToken");

            // 发送请求
            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);

            // 获取输入流，用于读取返回的数据
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;

            // 读取数据
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }

            JsonObject jsonObject = JsonParser.parseString(response.toString()).getAsJsonObject();

            // 在这里处理解析后的 JSON 数据
            System.out.println("Parsed JSON: " + jsonObject.toString());
            System.out.println(jsonObject.get("trans_result").getAsJsonArray().get(0).getAsJsonObject().get("dst"));
            answer = String.valueOf(jsonObject.get("trans_result").getAsJsonArray().get(0).getAsJsonObject().get("dst"));
            // 关闭连接
            connection.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return true;
    }

    private static String MD5(String s) {
        try {
            // 获取 MD5 摘要算法实例
            MessageDigest md = MessageDigest.getInstance("MD5");

            // 将输入字符串转换为字节数组
            byte[] byteData = s.getBytes();

            // 计算摘要
            byte[] mdBytes = md.digest(byteData);

            // 将字节数组转换为十六进制字符串
            StringBuilder result = new StringBuilder();
            for (byte mdByte : mdBytes) {
                result.append(Integer.toString((mdByte & 0xff) + 0x100, 16).substring(1));
            }

            return result.toString();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return null;
        }
    }

    public String get_answer(){
        String temp = this.answer;
        this.answer="";
        return temp;
    }
}

package ui;

import translation.Api;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;

public class Main {
    public void display(String result, ArrayList<String> strArray){
        Font font = new Font("仿宋", Font.PLAIN, 25);

        JFrame jf =new JFrame();
        JPanel Jp = new JPanel();//申请容器
        jf.setLayout(null);
        jf.setSize(560, 400);//设置窗体大小
        jf.setLocationRelativeTo(null);//设置窗体于屏幕中央位置
        jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);//点击叉叉可以关闭窗体
        jf.setVisible(true);//组件可见
        Jp.setLayout(null);
        jf.setResizable(false);//窗体不可变大或者变小
        jf.setContentPane(Jp);//不知道


        JLabel jLabel=new JLabel("翻译结果为:");
        jLabel.setVisible(true);
        jLabel.setFont(font);
        jLabel.setBounds(20,20,240,30);
        Jp.add(jLabel);

        final JLabel res=new JLabel(result);
        res.setVisible(true);
        res.setFont(font);
        res.setBounds(60,60,420,180);
        Jp.add(res);

        JLabel jLabel2=new JLabel("请输入:");
        jLabel2.setVisible(true);
        jLabel2.setFont(font);
        jLabel2.setBounds(20,250,100,30);
        Jp.add(jLabel2);

        final JTextField input=new JTextField(10);
        input.setVisible(true);
        input.setFont(font);
        input.setBounds(120,250,220,30);
        Jp.add(input);


        final JComboBox comboBox = new JComboBox();
        for (String item : strArray) {
            comboBox.addItem(item);
        }
        comboBox.setVisible(true);
        comboBox.setFont(font);
        comboBox.setBounds(340,250,80,30);
        Jp.add(comboBox);

        JButton jButton = new JButton("提交");
        jButton.setVisible(true);
        jButton.setFont(font);
        jButton.setBounds(430,250,85,30);
        Jp.add(jButton);

        jButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                Api api=new Api();
                api.choose_language((String) comboBox.getSelectedItem());
                if(api.get(input.getText())){
                    try {
                        JlabelSetText(res,api.get_answer());
                    } catch (InterruptedException interruptedException) {
                        interruptedException.printStackTrace();
                    }
                }
            }
        });
    }

    void JlabelSetText(JLabel jLabel, String longString)
            throws InterruptedException {
        StringBuilder builder = new StringBuilder("<html>");
        char[] chars = longString.toCharArray();
        FontMetrics fontMetrics = jLabel.getFontMetrics(jLabel.getFont());
        int start = 0;
        int len = 0;
        while (start + len < longString.length()) {
            while (true) {
                len++;
                if (start + len > longString.length())break;
                if (fontMetrics.charsWidth(chars, start, len)
                        > jLabel.getWidth()) {
                    break;
                }
            }
            builder.append(chars, start, len-1).append("<br/>");
            start = start + len - 1;
            len = 0;
        }
        builder.append(chars, start, longString.length()-start);
        builder.append("</html>");
        jLabel.setText(builder.toString());
    }
}

import translation.Api;
import ui.Main;

import java.util.ArrayList;

public class mian {
    public static void main(String[] args) {
        Main main=new Main();
        ArrayList<String> arrayList=new ArrayList<String>();
        arrayList.add("中文");
        arrayList.add("英文");
        arrayList.add("日文");
        arrayList.add("泰文");
        arrayList.add("粤语");
        main.display("",arrayList);
    }
}