Java Baidu Translation API を利用して、複数言語間の高速かつ正確な翻訳を実現します。

import net.sf.json.JSONObject;
import net.sf.json.JSONArray;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.util.ArrayList;
import java.util.List;

public class Translate {
    // 百度翻译API地址
    private static final String TRANSLATE_API_URL = "http://api.fanyi.baidu.com/api/trans/vip/translate";
    // 百度翻译API密钥
    private static final String API_KEY = "YOUR_API_KEY";
    // 百度翻译API密钥
    private static final String SECRET_KEY = "YOUR_SECRET_KEY";

    /**
     * 将文本从指定语言翻译为目标语言
     *
     * @param text         待翻译文本
     * @param sourceLang   源语言
     * @param targetLang   目标语言
     * @return 翻译结果
     */
    public static String translate(String text, String sourceLang, String targetLang) {
        try {
            HttpClient httpClient = HttpClients.createDefault();

            // 构建请求参数
            List<NameValuePair> params = new ArrayList<>();
            params.add(new BasicNameValuePair("q", text));
            params.add(new BasicNameValuePair("from", sourceLang));
            params.add(new BasicNameValuePair("to", targetLang));
            params.add(new BasicNameValuePair("appid", API_KEY));
            params.add(new BasicNameValuePair("salt", String.valueOf(System.currentTimeMillis())));
            params.add(new BasicNameValuePair("sign", getSign(text)));

            HttpEntity entity = new UrlEncodedFormEntity(params, "UTF-8");

            // 发送POST请求
            HttpPost httpPost = new HttpPost(TRANSLATE_API_URL);
            httpPost.setEntity(entity);
            HttpResponse response = httpClient.execute(httpPost);

            // 解析返回的JSON数据
            String jsonString = EntityUtils.toString(response.getEntity(), "UTF-8");
            JSONObject jsonObject = JSONObject.fromObject(jsonString);
            JSONArray transArray = jsonObject.getJSONArray("trans_result");
            JSONObject transObj = transArray.getJSONObject(0);
            String translation = transObj.getString("dst");

            return translation;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 生成签名
     *
     * @param text 待翻译文本
     * @return 签名
     */
    private static String getSign(String text) {
        String sign = API_KEY + text + String.valueOf(System.currentTimeMillis()) + SECRET_KEY;
        return MD5.encode(sign);
    }
}

public class Main {
    public static void main(String[] args) {
        String text = "Hello world!";
        String sourceLang = "en";
        String targetLang = "zh";

        String translation = Translate.translate(text, sourceLang, targetLang);
        System.out.println("翻译结果：" + translation);
    }
}