Java Baidu翻訳APIで中国語と韓国語の相互翻訳を実現

<dependencies>
  <dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.5</version>
  </dependency>
  <dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.8</version>
  </dependency>
</dependencies>

import com.google.gson.Gson;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.net.URLEncoder;

public class Translator {
    private static final String API_URL = "http://api.fanyi.baidu.com/api/trans/vip/translate";
    private static final String APP_ID = "Your App ID";
    private static final String SECRET_KEY = "Your Secret Key";

    public static String translate(String query, String from, String to) throws Exception {
        // 对查询字符串进行URL编码
        String encodedQuery = URLEncoder.encode(query, "UTF-8");

        // 拼接请求URL
        String url = API_URL + "?q=" + encodedQuery + "&from=" + from + "&to=" + to +
                "&appid=" + APP_ID + "&salt=12345678";

        // 生成签名
        String sign = MD5Util.md5(APP_ID + query + "12345678" + SECRET_KEY);

        // 拼接请求URL
        url += "&sign=" + sign;

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpGet httpGet = new HttpGet(url);
        HttpResponse httpResponse = httpClient.execute(httpGet);
        HttpEntity httpEntity = httpResponse.getEntity();
        String responseString = EntityUtils.toString(httpEntity);

        // 解析返回JSON数据
        Gson gson = new Gson();
        BaiduTranslateResponse baiduTranslateResponse = gson.fromJson(responseString, BaiduTranslateResponse.class);

        // 获取翻译结果
        String translation = baiduTranslateResponse.getTransResult().get(0).getDst();

        httpClient.close();

        return translation;
    }

    public static void main(String[] args) {
        try {
            String translation = translate("你好", "zh", "ko");
            System.out.println("中文翻译为韩文：" + translation);

            translation = translate("안녕하세요", "ko", "zh");
            System.out.println("韩文翻译为中文：" + translation);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

中文翻译为韩文：안녕하세요
韩文翻译为中文：你好