调用企查查上的接口，实现通过公司名称查询公司列表

引入架包

 <dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.5.1</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.29</version></dependency><dependency><groupId>com.vaadin.external.google</groupId><artifactId>android-json</artifactId><version>0.0.20131108.vaadin1</version><scope>compile</scope></dependency>

官方文件一：mainApp

package com.bc.user.manager;import static java.lang.System.out;import java.io.IOException;
import java.util.regex.Pattern;import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.client.methods.HttpHead;
import org.json.JSONException;
import org.json.JSONObject;import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;/*** @program: wd-saas* @description: 第三方企查查调用接口类* @author: dd* @create: 2019年9月26日12:11:18**/public class mainApp{// 请登录http://yjapi.com/DataCenter/MyData// 查看我的秘钥 我的Keyprivate static final String appkey = "*企查查上的key";private static final String seckey = "*企查查上的seckey";public static String searchEnterpriseName(String enterpriseName) throws Exception {String reqInterNme = "http://api.qichacha.com/ECIV4/Search";String paramStr = "keyword=" + enterpriseName;String status = "";// auth header settingHttpHead reqHeader = new HttpHead();String[] autherHeader = RandomAuthentHeader();reqHeader.setHeader("Token", autherHeader[0]);reqHeader.setHeader("Timespan", autherHeader[1]);final String reqUri = reqInterNme.concat("?key=").concat(appkey).concat("&").concat(paramStr);String tokenJson = HttpHelper.httpGet(reqUri, reqHeader.getAllHeaders());out.println(String.format("==========================>this is response:{%s}", tokenJson));// parse status from jsonstatus = FormartJson(tokenJson, "Status");out.println(String.format("==========================>Status:{%s}", status));if (!HttpCodeRegex.isAbnornalRequest(status)) {PrettyPrintJson(tokenJson);}return tokenJson;}// 获取返回码 Res Codepublic static class HttpCodeRegex {private static final String ABNORMAL_REGIX = "(101)|(102)";private static final Pattern pattern = Pattern.compile(ABNORMAL_REGIX);protected static boolean isAbnornalRequest(final String status) {return pattern.matcher(status).matches();}}// 获取Auth Codepublic static final String[] RandomAuthentHeader() {String timeSpan = String.valueOf(System.currentTimeMillis() / 1000);String[] authentHeaders = new String[]{DigestUtils.md5Hex(appkey.concat(timeSpan).concat(seckey)).toUpperCase(), timeSpan};return authentHeaders;}// 解析JSONpublic static String FormartJson(String jsonString, String key) throws JSONException {JSONObject jObject = new JSONObject(jsonString);return (String) jObject.get(key);}// pretty print 返回值public static void PrettyPrintJson(String jsonString) throws JSONException {try {ObjectMapper mapper = new ObjectMapper();Object obj = mapper.readValue(jsonString, Object.class);String indented = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(obj);out.println(indented);} catch (JsonProcessingException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}

其中 HttpHelper.httpGet方法是HttpHelper类里的方法
HttpHelper方法：

package com.bc.user.manager;import static java.lang.System.out;import java.io.IOException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;/*** 描述 http请求处理模块<br>** @author szld<br>* @version 1.0 <br>* 日期：2019年7月31日 下午2:23:41*/
public class HttpHelper {// get 请求public static String httpGet(String url, Header[] headers) throws Exception {HttpUriRequest uriRequest = new HttpGet(url);if (null != headers) {uriRequest.setHeaders(headers);}CloseableHttpClient httpClient = null;try {httpClient = declareHttpClientSSL(url);CloseableHttpResponse httpresponse = httpClient.execute(uriRequest);HttpEntity httpEntity = httpresponse.getEntity();String result = EntityUtils.toString(httpEntity, REQ_ENCODEING_UTF8);return result;} catch (ClientProtocolException e) {out.println(String.format("http请求失败，uri{%s},exception{%s}", new Object[]{url, e}));} catch (IOException e) {out.println(String.format("IO Exception，uri{%s},exception{%s}", new Object[]{url, e}));} finally {if (null != httpClient) {httpClient.close();}}return null;}// post 请求public static String httpPost(String url, String params) throws Exception {HttpPost post = new HttpPost(url);post.addHeader("Content-Type", "application/json;charset=" + REQ_ENCODEING_UTF8);// 设置传输编码格式StringEntity stringEntity = new StringEntity(params, REQ_ENCODEING_UTF8);stringEntity.setContentEncoding(REQ_ENCODEING_UTF8);post.setEntity(stringEntity);HttpResponse httpresponse = null;CloseableHttpClient httpClient = null;try {httpClient = declareHttpClientSSL(url);httpresponse = httpClient.execute(post);HttpEntity httpEntity = httpresponse.getEntity();String result = EntityUtils.toString(httpEntity, REQ_ENCODEING_UTF8);return result;} catch (ClientProtocolException e) {out.println(String.format("http请求失败，uri{%s},exception{%s}", new Object[]{url, e}));} catch (IOException e) {out.println(String.format("IO Exception，uri{%s},exception{%s}", new Object[]{url, e}));} finally {if (null != httpClient) {httpClient.close();}}return null;}private static CloseableHttpClient declareHttpClientSSL(String url) {if (url.startsWith("https://")) {return sslClient();} else {return HttpClientBuilder.create().setConnectionManager(httpClientConnectionManager).build();}}/*** 设置SSL请求处理** @param*/private static CloseableHttpClient sslClient() {try {SSLContext ctx = SSLContext.getInstance("TLS");X509TrustManager tm = new X509TrustManager() {@Overridepublic X509Certificate[] getAcceptedIssuers() {return null;}@Overridepublic void checkClientTrusted(X509Certificate[] xcs, String str) {}@Overridepublic void checkServerTrusted(X509Certificate[] xcs, String str) {}};ctx.init(null, new TrustManager[]{tm}, null);SSLConnectionSocketFactory sslConnectionSocketFactory = SSLConnectionSocketFactory.getSocketFactory();return HttpClients.custom().setSSLSocketFactory(sslConnectionSocketFactory).build();} catch (NoSuchAlgorithmException e) {throw new RuntimeException(e);} catch (KeyManagementException e) {throw new RuntimeException(e);}}// this is configprivate static final String REQ_ENCODEING_UTF8 = "utf-8";private static PoolingHttpClientConnectionManager httpClientConnectionManager;public HttpHelper() {httpClientConnectionManager = new PoolingHttpClientConnectionManager();httpClientConnectionManager.setMaxTotal(100);httpClientConnectionManager.setDefaultMaxPerRoute(20);}// get 请求public static String httpGet(String url) throws Exception {return httpGet(url, null);}
}

如果出先第一行编码错误，
就把此处变
此处的编码格式改为GDK，在改回去，就ok了

调用该方法
String nameJson = mainApp.searchEnterpriseName(name);
将查找的json转化为list
Object enterpriseAppSearch = JSONObject.parseObject(nameJson, Object.class);

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