java 调用企查查API查询企业信息

效果图：

首先需要设置token，API中要求token的格式为key+Timespan+SecretKey组成的32位md5加密的大写字符串，所以我也附赠了MD5加密的工具类。token要放在http的header 头中，所以我在get请求的工具类中增加了一个header。

//添加header 头httpGet.setHeader("Token",token);httpGet.setHeader("Timespan",timeSpan);

权限验证所提到的key，SecretKey均可在“我的接口”中查询到

下面附上代码。

HttpClientUtil ：HTTP请求的工具类。里面封装好了，get、post 有无参数的请求情况。

package dlighttop.apitest.apitest;import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;import org.apache.http.Header;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
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.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;public class HttpClientUtil {/*** 带参数的get请求* @param url* @param param* @return String*/public static String doGet(String url, Map<String, String> param) {// 创建Httpclient对象CloseableHttpClient httpclient = HttpClients.createDefault();String resultString = "";CloseableHttpResponse response = null;try {// 创建uriURIBuilder builder = new URIBuilder(url);if (param != null) {for (String key : param.keySet()) {builder.addParameter(key, param.get(key));}}URI uri = builder.build();// 创建http GET请求HttpGet httpGet = new HttpGet(uri);// 执行请求response = httpclient.execute(httpGet);// 判断返回状态是否为200if (response.getStatusLine().getStatusCode() == 200) {resultString = EntityUtils.toString(response.getEntity(), "UTF-8");}} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpclient.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}/*** 带参数的get请求* @param url* @param param* @return String*/public static String doGet(String url,String token,String timeSpan,Object o) {// 创建Httpclient对象CloseableHttpClient httpclient = HttpClients.createDefault();String resultString = "";CloseableHttpResponse response = null;try {// 创建uriURIBuilder builder = new URIBuilder(url);URI uri = builder.build();// 创建http GET请求HttpGet httpGet = new HttpGet(uri);//添加header 头httpGet.setHeader("Token",token);httpGet.setHeader("Timespan",timeSpan);// 执行请求response = httpclient.execute(httpGet);// 判断返回状态是否为200if (response.getStatusLine().getStatusCode() == 200) {resultString = EntityUtils.toString(response.getEntity(), "UTF-8");}} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpclient.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}//
//    /**
//     * 不带参数的get请求
//     * @param url
//     * @return String
//     */
//    public static String doGet(String url) {
//        return doGet(url, null);
//    }/*** 不带参数的get请求** @param s* @param url* @return String*/public static String doGet(String url, String token, String timeSpan) {return doGet(url, token,timeSpan,null);}/*** 带参数的post请求* @param url* @param param* @return String*/public static String doPost(String url, Map<String, String> param) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建参数列表if (param != null) {List<NameValuePair> paramList = new ArrayList<>();for (String key : param.keySet()) {paramList.add(new BasicNameValuePair(key, param.get(key)));}// 模拟表单UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);httpPost.setEntity(entity);}// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "utf-8");} catch (Exception e) {e.printStackTrace();} finally {try {response.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}/*** 不带参数的post请求* @param url* @return String*/public static String doPost(String url) {return doPost(url, null);}/*** 传送json类型的post请求* @param url* @param json* @return String*/public static String doPostJson(String url, String json) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建请求内容StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);httpPost.setEntity(entity);// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "utf-8");} catch (Exception e) {e.printStackTrace();} finally {try {response.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}
}

MD5Util:MD5加密的工具类。网上找的。生成32位大写MD5码

package dlighttop.apitest.apitest;import java.security.MessageDigest;/*** <p>* Description:* </p>* <p>* Copyright: Copyright (c)2015* </p>* <p>* Company: tope* </p>* <P>* Created Date :2015-7-27* </P>* * @author zhangfeng* @version 1.0*/
public class MD5Util {public final static String MD5(String s) {char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };try {byte[] btInput = s.getBytes();// 获得MD5摘要算法的 MessageDigest 对象MessageDigest mdInst = MessageDigest.getInstance("MD5");// 使用指定的字节更新摘要mdInst.update(btInput);// 获得密文byte[] md = mdInst.digest();// 把密文转换成十六进制的字符串形式int j = md.length;char str[] = new char[j * 2];int k = 0;for (int i = 0; i < j; i++) {byte byte0 = md[i];str[k++] = hexDigits[byte0 >>> 4 & 0xf];str[k++] = hexDigits[byte0 & 0xf];}return new String(str);} catch (Exception e) {e.printStackTrace();return null;}}public static void main(String[] args) {System.out.println(MD5("123456").toUpperCase());}
}

程序的入口，这里因为时间比较紧，所以写的比较乱。。。

package dlighttop.apitest.apitest;import dlighttop.core.utils.MD5Util;
import java.util.Date;public class identityCheck {public static boolean identityCheck(String token,String timeStamp){System.out.println("-----------------开始调用--------------->");System.out.println("token"+token);String key = "263d5d33**b54b2da7d7a2742fc17828";String keyword = "阿里巴巴";//企业关键字模糊查询String url = "http://api.qichacha.com/ECIV4/Search?key=" + key + "&dtype=json" + "&keyword=" + keyword;//企业关键字获取详细信息
//        String url = "http://api.qichacha.com/ECIV4/GetBasicDetailsByName?key=" + key + "&dtype=json" + "&keyword=" + keyword;System.out.println("请求url:" + url);boolean match = false; //是否匹配try {String result = HttpClientUtil.doGet(url,token,timeStamp);System.out.println("请求结果：" + result);} catch (Exception e) {e.printStackTrace();}System.out.println("<-----------------调用结束---------------");return match;}public static void main(String[] args) throws Exception{String key = "263d5d338cb54b2d**d7a2742fc17828";int secondTimestamp = getSecondTimestamp(new Date()); //精确到秒的时间戳String secretKey ="B24B271A56A3**F16B6B73FFF64D80B2"; //密钥String token = MD5Util.MD5(key+secondTimestamp+secretKey); //token:验证加密值（key+Timespan+SecretKey组成的32位md5加密的大写字符串）System.out.println(token);identityCheck(token,secondTimestamp+"");}/*** 获取精确到秒的时间戳* @return*/public static int getSecondTimestamp(Date date){if (null == date) {return 0;}String timestamp = String.valueOf(date.getTime());int length = timestamp.length();if (length > 3) {return Integer.valueOf(timestamp.substring(0,length-3));} else {return 0;}}
}

最后打个写好的包，记录一下，方便自己也方便大家。嘿嘿~

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