自制Java工具实现翻译鼠标选中文本

/**
 * 剪切板工具类
 */
public class ClipBoardUtil {
    public static String getClipboardText() {
        Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
        //从系统剪切板中获取数据
        Transferable content = clipboard.getContents(null);
        //判断是否为文本类型
        if (content.isDataFlavorSupported(DataFlavor.stringFlavor)) {
            //从数据中获取文本值
            String text = null;
            try {
                text = (String) content.getTransferData(DataFlavor.stringFlavor);
            }  catch (Exception e) {

            }
            if (text == null) {
                return "剪切板为空";
            }
            return text;
        }
        return "剪切板无文本值";
    }
}

import cn.hutool.crypto.digest.DigestUtil;
import cn.hutool.http.HttpUtil;

import java.util.HashMap;
import java.util.Map;

public class TransApi {
    private static final String TRANS_API_HOST = "http://api.fanyi.baidu.com/api/trans/vip/translate";
    private String appid;
    private String securityKey;

    /**
     * 有参构造
     * @param appid appid
     * @param securityKey 密钥
     */
    public TransApi(String appid, String securityKey) {
        this.appid = appid;
        this.securityKey = securityKey;
    }
    
    /**
     * 调用方法
     * @param query 翻译内容
     * @param from 来源语言
     * @param to 翻译语言
     * @return 返回参数
     */	
    public String getTransResult(String query, String from, String to) {
        Map<String, Object> params = this.buildParams(query, from, to);
        return HttpUtil.get("http://api.fanyi.baidu.com/api/trans/vip/translate", params);
    }

    /**
     * 初始化参数
     * @param query 翻译内容
     * @param from 来源语言
     * @param to 翻译语言
     * @return
     */
    private Map<String, Object> buildParams(String query, String from, String to) {
        Map<String, Object> params = new HashMap();
        params.put("q", query);
        params.put("from", from);
        params.put("to", to);
        params.put("appid", this.appid);
        String salt = String.valueOf(System.currentTimeMillis());
        params.put("salt", salt);
        String src = this.appid + query + salt + this.securityKey;
        //MD5加密
        params.put("sign", DigestUtil.md5Hex(src));
        return params;
    }
}

<dependency>
  <groupId>cn.hutool</groupId>
  <artifactId>hutool-all</artifactId>
  <version>5.8.24</version>
</dependency>

import javax.swing.*;
import java.awt.*;

public class MyWindow extends JFrame {

    private JTextArea textArea;

    public MyWindow() {
        setTitle("Text Window");
        setSize(400, 300);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        textArea = new JTextArea();
        //设置字体大小
        textArea.setFont(new Font("SimSun", Font.PLAIN, 16));
        // 自动换行
        textArea.setLineWrap(true);
        // 断行不断字
        textArea.setWrapStyleWord(true);
        JPanel panel = new JPanel();

        setVisible(true);
        add(textArea, "Center");
        add(panel, "South");
    }

    //写入文本
    public void writeText(String text) {
        textArea.append(text + "\n");
    }
    //清楚文本
    public void clearText() {
        textArea.setText("");
    }

    public static void main(String[] args) {
        MyWindow window = new MyWindow();
        window.setVisible(true);
    }
}

import cn.hutool.core.text.UnicodeUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.github.kwhat.jnativehook.GlobalScreen;
import com.github.kwhat.jnativehook.NativeHookException;
import com.github.kwhat.jnativehook.keyboard.NativeKeyEvent;
import com.github.kwhat.jnativehook.keyboard.NativeKeyListener;
import com.icepeach.Utils.ClipBoardUtil;
import com.icepeach.Utils.GUI.MyWindow;


public class GlobalKeyListenerExample implements NativeKeyListener {
    String key = "";
    private static final String APP_ID = "你的appid";
    private static final String SECURITY_KEY = "你的密钥";
    TransApi api = new TransApi(APP_ID, SECURITY_KEY);
    MyWindow window = new MyWindow();

    public void nativeKeyPressed(NativeKeyEvent e) {


        if ("Ctrl".equals(NativeKeyEvent.getKeyText(e.getKeyCode()))) {
            key = new String("Ctrl");
        } else {
            key += NativeKeyEvent.getKeyText(e.getKeyCode());
        }

        if ("CtrlCC".equals(key)) {
            window.setVisible(true);
            //打印剪切板内容
            System.out.println("剪切板内容为：" + ClipBoardUtil.getClipboardText());
            //调用翻译接口
            String jsonStr = api.getTransResult(ClipBoardUtil.getClipboardText(), "auto", "zh");
            // 解析JSON字符串
            JSONObject jsonObject = JSONUtil.parseObj(jsonStr);
            // 获取trans_result数组中的第一个元素
            JSONObject transResult = jsonObject.getJSONArray("trans_result").getJSONObject(0);
            // 获取dst中的内容并转换成中文
            String dst = transResult.getStr("dst");
            String chineseDst = UnicodeUtil.toString(dst);

            System.out.println("翻译:"+chineseDst);


            window.clearText();
            window.writeText("剪切板内容为：" + ClipBoardUtil.getClipboardText());
            window.writeText("翻译:"+chineseDst);

        }
        if (e.getKeyCode() == NativeKeyEvent.VC_ESCAPE) {
            try {
                GlobalScreen.unregisterNativeHook();
            } catch (NativeHookException nativeHookException) {
                nativeHookException.printStackTrace();
            }
        }
    }

    public void nativeKeyReleased(NativeKeyEvent e) {
//        System.out.println("Key Released: " + NativeKeyEvent.getKeyText(e.getKeyCode()));
    }

    public void nativeKeyTyped(NativeKeyEvent e) {
//        System.out.println("Key Typed: " + e.getKeyText(e.getKeyCode()));
    }

    public static void main(String[] args) {
        try {
            GlobalScreen.registerNativeHook();
        } catch (NativeHookException ex) {
            System.err.println("There was a problem registering the native hook.");
            System.err.println(ex.getMessage());

            System.exit(1);
        }

        GlobalScreen.addNativeKeyListener(new GlobalKeyListenerExample());
    }
}