Wispro-CodeWarehouse-BackEnd/PAS/src/main/java/cn/cslg/pas/service/outApi/PatentStarApiService.java

package cn.cslg.pas.service.outApi;

import cn.cslg.pas.common.model.PatentCell;
import cn.cslg.pas.common.model.dto.GetClaimsInfoParamsDTO;
import cn.cslg.pas.common.model.dto.GetDescriptionInfoParamsDTO;
import cn.cslg.pas.common.model.dto.GetFuTuParamsDTO;
import cn.cslg.pas.common.model.dto.GetSearchBiblioParamsDTO;
import cn.cslg.pas.common.model.outApi.PatentStarListDto;
import cn.cslg.pas.common.model.vo.outApi.StarPatentVO;
import cn.cslg.pas.common.utils.FormatUtil;
import cn.cslg.pas.common.utils.JsonUtils;
import cn.cslg.pas.common.utils.SecurityUtils.SecurityUtils;
import cn.cslg.pas.domain.*;
import cn.hutool.crypto.SecureUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.google.gson.Gson;
import com.google.gson.JsonObject;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import okhttp3.*;
import org.apache.commons.lang3.StringEscapeUtils;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.util.*;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 调用外部接口的Service类 PCS:权限系统
 *
 * @Author chenyu
 * @Date 2023/4/25
 */
@RequiredArgsConstructor
@Slf4j
@Service

public class PatentStarApiService {

   public static String formatValue(String value){
       return  value.replace("~",">");
   }

   public static String formQuery(String query){
       query = query
               .replace(" AND ", "*")
               .replace(" OR ", "+")
               .replace(" NOT ", "-");

       //记录偏移量
       int t =0;
      StringBuilder query2 =new StringBuilder(query);
      //匹配形如ab=(cd OR ef);
       String regexOrg = "([^=^\\+^\\(^\\)]+=\\([^=^\\)]+\\))+?";
       Pattern patternOrg = Pattern.compile(regexOrg);
       Matcher matcherOrg = patternOrg.matcher(query);
       while (matcherOrg.find()){
           String a = matcherOrg.group();
         String[] bc =a.split("=");
         String b =bc[0];
         b.length();
         query2.delete(matcherOrg.start()+t,matcherOrg.start()+b.length()+1+t);
         t=t-b.length()-1;
         String c= bc[1];
           String regexOrg1 = "([^\\+^\\*^\\-^\\(^\\)])+";
           Pattern patternOrg1 = Pattern.compile(regexOrg1);
           Matcher matcherOrg1 = patternOrg1.matcher(c);
           while (matcherOrg1.find()){
               String r =matcherOrg1.group();
               System.out.println(r);
        query2.insert(matcherOrg.start()+b.length()+1+matcherOrg1.start()+t,b+"=");
           t=t+b.length()+1;
           }
       }
       System.out.println(query2);
       return query2.toString();
   }

    public static String formatQuery(String query) {
       query= PatentStarApiService.formQuery(query);
        StringBuilder sb = new StringBuilder(query);
        String regex = "(?<=[\\(\\)\\+\\-=\\*])[^\\*^\\-^\\+^\\(^\\)]+?(?=[\\(\\+\\-=\\)\\*])";
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(query);
        Map<Integer, Integer> map = new LinkedHashMap<>();
        while (matcher.find()) {
            String a = matcher.group();
            String regex2 = "[^\\(^\\)^\\+^-^=^*]";
            Pattern pattern2 = Pattern.compile(regex2);
            Matcher matcher2 = pattern2.matcher(a);
            Integer start = matcher.start();
            if (matcher2.find()) {
                start += matcher2.start();
            }
            map.put(start, matcher.end());
        }
        if (map.size() == 0) {
            return "";
        }
        List<Integer> list = new ArrayList<Integer>(map.keySet());
        for (int i = 0; i < list.size(); i += 2) {
            int start1 = list.get(i);
            int end1 = map.get(list.get(i));
            int len1 = end1 - start1;
            int start2 = list.get(i + 1);
            int end2 = map.get(list.get(i + 1));
            int len2 = end2 - start2;
            int diff = len2 - len1;
            if (diff > 0) {
                sb.replace(start1, end1,formatValue(query.substring(start2, end2)));
                sb.replace(start2 + diff, end2 + diff, query.substring(start1, end1));
            } else {
                sb.replace(start2, end2, query.substring(start1, end1));
                sb.replace(start1, end1, formatValue(query.substring(start2, end2)));
            }
        }
        String reStr = sb.toString();
        reStr = "FXX" + reStr.replace("=", "/");
        return reStr;
    }

    //装载专利信息
    public void loadStarPatentVOS(List<StarPatentVO> starPatentVOS){
        starPatentVOS.forEach(item->{
            if(item.getPublicNo()!=null&&!item.getPublicNo().equals("")){
                item.setPatentNo(item.getPublicNo());
            }
            else if(item.getAnnounceNo()!=null&&!item.getAnnounceNo().equals("")){
                item.setPublicNo(item.getAnnounceNo());
                item.setPatentNo(item.getAnnounceNo());
            }
            item.setApplicant(new ArrayList<>());
            item.setAgent(new ArrayList<>());
            item.setIpcList(Arrays.asList(item.getIpcListStr().split(";")));
            List<String> applicants =   Arrays.asList( item.getApplicantStr().split(";"));
            //装载申请人
            applicants.forEach(
                    tem->{
                        PatentApplicant patentApplicant =new PatentApplicant();
                        patentApplicant.setType(2);
                        patentApplicant.setDataType(2);
                        patentApplicant.setName(tem);
                        item.getApplicant().add(patentApplicant);
                    }
            );
            if(item.getCurrentApplicantStr()!=null&&item.getCurrentApplicantStr()!=""){
                List<String> cApplicants =   Arrays.asList(item.getCurrentApplicantStr().split(";"));
                cApplicants.forEach(
                        tem->{
                            PatentApplicant patentApplicant =new PatentApplicant();
                            patentApplicant.setType(2);
                            patentApplicant.setDataType(1);
                            patentApplicant.setName(tem);
                            item.getApplicant().add(patentApplicant);
                        }
                );
            }
            //代理机构
            if(item.getAgencyStr()!=null&&item.getAgencyStr()!=""){
                PatentAgency patentAgency =new PatentAgency();
                patentAgency.setName(item.getAgencyStr().split(" ")[0]);
                item.setAgency(patentAgency);
            }
            //发明人
            if(item.getInventorStr()!=null&&item.getInventorStr()!=""){
                item.setInventor(new ArrayList<>());
                List<String> inventors =   Arrays.asList(item.getInventorStr().split(";"));
                inventors.forEach(
                        tem->{
                            PatentInventor patentInventor =new PatentInventor();
                            patentInventor.setName(tem);
                            item.getInventor().add(patentInventor);;
                        }
                );
            }
            //代理人
            if(item.getAgentStr()!=null&&item.getAgentStr()!=""){
                List<String> agent =   Arrays.asList(item.getAgentStr().split(";"));
                agent.forEach(
                        tem->{
                            PatentAgent patentAgent =new PatentAgent();
                            patentAgent.setName(tem);
                            item.getAgent().add(patentAgent);
                        }
                );
            }
            //附图
            String apN=item.getApplicationNo().replace(".","");
        item.setAbstractPath(this.getPictureApi(apN.substring(2)));
            if(item.getLG()!=null){
             switch (item.getLG()){
                 case 1:
                     item.setSimpleStatus("有效");
                     break;
                 case 2:
                     item.setSimpleStatus("失效");
                     break;
                 case 3:
                     item.setSimpleStatus("审中");
                     break;
             }
            }
            //法律状态
        });
    }

    public Map<String, Object> patentStarSearchApi(PatentStarListDto patentStarListDto) throws IOException {
       try {
           String formQuery = patentStarListDto.getCurrentQuery();
           patentStarListDto.setCurrentQuery(PatentStarApiService.formatQuery(formQuery));
       }
catch (Exception e){
           return null;
}

        String json = JSONObject.toJSONString(patentStarListDto);
        String url = "http://s.patentstar.com.cn/SearchAPI/PatentSearch/ResultGet";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = "FNYJD7902206FFB741E163BE6536C3689D55" + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个RequestBody(参数1：数据类型 参数2传递的json串)
        FormBody.Builder builder = new FormBody.Builder();
        builder.add("AppID", "K8FFB741E163BE6536");
        builder.add("Stamp", currentTimeMillis.toString());
        builder.add("Sign", signMd5);
        builder.add("QueryJson", json);
        FormBody requestBody = builder.build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url).post(requestBody).build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                JSONObject jsonObject = JSONObject.parseObject(Objects.requireNonNull(response.body()).string());
                if(jsonObject.get("Ret").equals(500)){
                    return null;
                }
                JSONObject Data = (JSONObject) jsonObject.get("Data");
                List<StarPatentVO> starPatentVOS = JSONArray.parseArray(Data.get("List").toString(), StarPatentVO.class);
                this.loadStarPatentVOS(starPatentVOS);
                // 打印服务端返回结果
                //  return Objects.requireNonNull(response.body()).string();
                Map<String, Object> reMap = new HashMap<>();
                reMap.put("size", patentStarListDto.getRowCount());
                reMap.put("current", patentStarListDto.getPageNum());
                reMap.put("records",starPatentVOS);
                reMap.put("total", Data.get("HitCount"));
                return reMap;
            }
        }
        catch (IOException e) {
            e.printStackTrace();
            return  null;
        }
        return null;
    }

    /**
     * @param appNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取中国专利著录
     */
    public String getCnBibApi(String appNo) {
        String url = "https://api.patentstar.com.cn/api/Patent/CnBibo/" + appNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取中国专利摘要附图
     */
    public String getPictureApi(String appNo) {
        String url = "https://api.patentstar.com.cn/api/Patent/CnMainImage/" + appNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param appNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取中国专利外观图
     */
    public String getWGPictureApi(String appNo) throws IOException {

        String url = "https://api.patentstar.com.cn/api/Patent/CnWGImage/" + appNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param appNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取中国专利法律状态
     */
    public String getCnLegalApi(String appNo) {
        String url = "https://api.patentstar.com.cn/api/Patent/CnLegal/" + appNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param appNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取中国专利全文图片
     */

    public String getCnPdfApi(String appNo) throws IOException {
        String url = "https://api.patentstar.com.cn/api/Patent/CnPdf/" + appNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param appNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取中国专利全文文本
     */

    public String getCnFullXmlApi(String appNo) throws IOException {
        String url = "https://api.patentstar.com.cn/api/Patent/CnFullXml/" + appNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param patentNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取世界专利pdf
     */
    public String getEnPdfApi(String patentNo) {
        String url = "  https://api.patentstar.com.cn/api/Patent/EnPdf/" + patentNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param patentNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取世界专利著录信息
     */
    public String getENBibApi(String patentNo) {
        String url = "https://api.patentstar.com.cn/api/Patent/ENBib/" + patentNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param patentNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 从专利之星获取同族专利
     */
    public String getFamilyByPubNoApi(String patentNo) {
        String url = "https://api.patentstar.com.cn/api/Patent/FamilyByPubNo/" + patentNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    /**
     * @param patentNo
     * @return
     * @throws IOException
     * @author 李仁杰
     * 获得专利被引用次数api
     */
    public String getCitedNumByPubNoApi(String patentNo) throws IOException {
        String url = "https://api.patentstar.com.cn/api/Patent/CitedNumByPubNo/" + patentNo;
        String appId = "2000041";
        String appkey = "F0E183D5F02C48E391F5FADF1B646F54";
        Long currentTimeMillis = System.currentTimeMillis() / 1000;
        String Sign = appId + appkey + currentTimeMillis.toString();
        String signMd5 = FormatUtil.MD5(Sign);
        // 创建一个OkHttpClient对象
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(60, TimeUnit.SECONDS)
                .writeTimeout(60, TimeUnit.SECONDS)
                .readTimeout(60, TimeUnit.SECONDS)
                .build();
        // 创建一个请求对象
        Request request = new Request.Builder().url(url)
                .addHeader("_appid", "2000041")
                .addHeader("_timestamp", currentTimeMillis.toString())
                .addHeader("_sign", signMd5)
                .get().build();
        // 发送请求获取响应
        try {
            Response response = okHttpClient.newCall(request).execute();
            // 判断请求是否成功
            if (response.isSuccessful()) {
                response.body().toString();
                // 打印服务端返回结果
                return Objects.requireNonNull(response.body()).string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

}