Java Swing 调用有道词典API实现自定义桌面翻译字典

具体实现内容长这个样子:

下面开始具体的内容准备:

要调用有道词典的API，必须先申请API

进入网址(https://ai.youdao.com/?keyfrom=old-openapi)

先登录注册再说！

 

创建应用，创建实例，将实例绑定到应用上 

  

完成后，在我的应用里点进去，获得应用ID,和应用密钥

 ok了，准备已经做好了，现在写代码（项目具体目录，如下，没有jar包的自己去下载就好了）

ok，代码如下，将你申请的应用ID和应用密钥替换就可以使用了！ 

package exec;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.*;

public class SearchWord extends JFrame {
    private JPanel contentPane;
    private JButton search;
    private JTextField word;
    private JTextArea meaning;

    public SearchWord(){
        this.setTitle("单词查询");//设置标题
        this.setSize(420, 240);   //设置窗口大小
        this.setLocationRelativeTo(null);//居中显示
        this.contentPane = new JPanel();//初始化面板
        this.contentPane.setLayout(null);//设置布局NULL
        word = new JTextField(20);//设置查询框
        search = new JButton("查询");//查询按钮
        meaning = new JTextArea(20, 4);//单词意思显示
        word.setBounds(60, 20, 180, 28);
        search.setBounds(260, 20, 80, 28);
        meaning.setBounds(60, 80, 280, 100);
        this.contentPane.add(word);
        this.contentPane.add(search);
        this.contentPane.add(meaning);
        this.add(this.contentPane);

        search.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String result = HttpRequest.searchWord(word.getText());
                JSONObject jsonObject = JSONObject.parseObject(result);
                JSONArray jsonArray = JSONArray.parseArray(jsonObject.get("web").toString());
                String content = "";
                for (int i = 0; i < jsonArray.size(); i++){
                    JSONObject json = jsonArray.getJSONObject(i);
                    content += json.get("value").toString() + "\r\n";
                }
                meaning.setText(content);
            }
        });

        this.setVisible(true);//设置可见
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);//设置关闭
    }

    public static void main(String[] args) {
        new SearchWord();
    }
}
class HttpRequest{

    private static final String YOUDAO_URL = "http://openapi.youdao.com/api";

    private static final String APP_KEY = "你自己的应用ID";

    private static final String APP_SECRET = "你自己的应用密钥";

    public static String searchWord(String word){

        Map<String,String> params = new HashMap<String,String>();
        String q = word;
        String salt = String.valueOf(System.currentTimeMillis());
        params.put("from", "EN");
        params.put("to", "zh-CHS");
        params.put("signType", "v3");
        String curtime = String.valueOf(System.currentTimeMillis() / 1000);
        params.put("curtime", curtime);
        String signStr = APP_KEY + truncate(q) + salt + curtime + APP_SECRET;
        String sign = getDigest(signStr);
        params.put("appKey", APP_KEY);
        params.put("q", q);
        params.put("salt", salt);
        params.put("sign", sign);
        /** 处理结果 */
        try {
            return requestForHttp(YOUDAO_URL,params);
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }

    public static String requestForHttp(String url,Map<String,String> params) throws IOException {

        /** 创建HttpClient */
        CloseableHttpClient httpClient = HttpClients.createDefault();

        /** httpPost */
        HttpPost httpPost = new HttpPost(url);
        List<NameValuePair> paramsList = new ArrayList<NameValuePair>();
        Iterator<Map.Entry<String,String>> it = params.entrySet().iterator();
        while(it.hasNext()){
            Map.Entry<String,String> en = it.next();
            String key = en.getKey();
            String value = en.getValue();
            paramsList.add(new BasicNameValuePair(key,value));
        }
        httpPost.setEntity(new UrlEncodedFormEntity(paramsList,"UTF-8"));
        CloseableHttpResponse httpResponse = httpClient.execute(httpPost);
        try{
            HttpEntity httpEntity = httpResponse.getEntity();
            String json = EntityUtils.toString(httpEntity,"UTF-8");
            EntityUtils.consume(httpEntity);
            return json;
        }finally {
            try{
                if(httpResponse!=null){
                    httpResponse.close();
                }
            }catch(IOException e){
                e.printStackTrace();
            }
        }
    }

    /**
     * 生成加密字段
     */
    public static String getDigest(String string) {
        if (string == null) {
            return null;
        }
        char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
        byte[] btInput = string.getBytes();
        try {
            MessageDigest mdInst = MessageDigest.getInstance("SHA-256");
            mdInst.update(btInput);
            byte[] md = mdInst.digest();
            int j = md.length;
            char str[] = new char[j * 2];
            int k = 0;
            for (byte byte0 : md) {
                str[k++] = hexDigits[byte0 >>> 4 & 0xf];
                str[k++] = hexDigits[byte0 & 0xf];
            }
            return new String(str);
        } catch (NoSuchAlgorithmException e) {
            return null;
        }
    }

    public static String truncate(String q) {
        if (q == null) {
            return null;
        }
        int len = q.length();
        return len <= 20 ? q : (q.substring(0, 10) + len + q.substring(len - 10, len));
    }
}

 ok，就这样了，大家觉得我写的博客好的话，欢迎在下方留言，或者加关注呦！