JAVA对接百度翻译

官方登录链接：百度翻译开放平台 (baidu.com)

注册教程：百度翻译开放平台 (baidu.com)

创建TranslateUtils工具类

import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.net.URLEncoder;
@Component
public class TranslateUtils {

    @Value("${translate.app-id}")
    private String apiId; //注册账号的APIID（在开发者信息里面找）
    @Value("${translate.secret-key}")
    private String secretKey;//注册账号的密钥（在开发者信息里面找）

    /**
     * 使用百度翻译
     * @param query 要翻译的文本
     * @param from 要翻译的文本语言（这里默认使用auto自动识别）
     * @param to 要翻译的目标语言
     * @return
     */
    public String translate(String query,String from,String to) {

        try {

            String salt = String.valueOf(System.currentTimeMillis());
            String sign = apiId + query + salt + secretKey; // 替换为您的SECRET_KEY
            //注意这里加密出来的一定要小写，要不然会报54001
            String signMd5 = DigestUtils.md5Hex(sign);
            //拼接url
            String url = String.format("http://api.fanyi.baidu.com/api/trans/vip/translate?" +
                            "q=%s&from=%s&to=%s&appid=%s&salt=%s&sign=%s",
                    URLEncoder.encode(query, "UTF-8"), from, to, apiId, salt, signMd5);

            HttpClient client = HttpClients.createDefault();
            HttpGet request = new HttpGet(url);
            HttpResponse response = client.execute(request);

            String result = EntityUtils.toString(response.getEntity(), "UTF-8");
            //解析返回结果
            String trans = TransUtils.getTrans(result);
            if (trans.equals("20003")){
                //返回原来的文本
                return query;
            }
            return trans;

        }catch (Exception e){
             return query;
        }
    }
}

创建json解析TransUtils工具类

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.springframework.stereotype.Component;

@Component
public class TransUtils {
    public static String getTrans(String result) {
        try {
            JSONObject jsonObject = new JSONObject(result);
            String from = jsonObject.getString("from");
            String to = jsonObject.getString("to");
            JSONArray transResults = jsonObject.getJSONArray("trans_result");
            String src = transResults.getJSONObject(0).getString("src");
            String dst = transResults.getJSONObject(0).getString("dst");
            return dst;
        } catch (JSONException e) {
            //e.printStackTrace();
            return "20003";
        }
    }
}

接着在对应的模块引用json.jar