先思考，如果我要挖掘一个qq获取好友列表的接口，那么必须找到一个网页在哪里会调用读取用户的好友列表。
然后这里要你从好友列表里面选择，那么这里肯定会出现一个ajax异步读取，这个jajx请求的响应也许就是你的好友列表。
接着在右边开发者工具里面会抓到很多请求包，那么你能一眼从众多的请求包中发现friend_show_qqfriends是显示QQ好友。
然后返回的json里面uin是QQ，groupid是分组id，remark是备注之类的。
QQ空间的，获取好友接口：http://user./p/r/cgi-bin/tfriend/friend_show_qqfriends.cgi?uin=867597730&follow_flag=1&groupface_flag=0&fupdate=1&g_tk=20372033
返回
_Callback({“code”:0,“subcode”:0,“message”:””,“default”:0,“data”:{“items”:[{“uin”:79620,“groupid”:15,“name”:”蔓越莓味哒曲奇”,“remark”:”曲奇”,“img”:”http://qlogo1./qzone/79620/79620/30″,“yellow”:-1,“online”:0,“v6”:1},
这个接口返回格式是callback的回调函数也就是意味着可以跨域获取？但是别忘记了这个接口请求需要带上一个参数也就是g_tk，这个g_tk是要用skey和QQ来计算的，并且需要验证cookie，所以意味着你也无法通过穷举g_tk来获取他人的好友列表，因此这个接口的安全性是不容置疑的。
package org.myJsoup;import java.io.IOException;import java.util.List;import java.util.Map;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClientBuilder;import org.apache.http.util.EntityUtils;import com.fasterxml.jackson.databind.ObjectMapper;import com.testmail.MailUtilByYock;public class QZoneCrawlFriends {public static void main(String[] args) throws IOException {CloseableHttpClient client = HttpClientBuilder.create().build();HttpGet get = new HttpGet("https://h5./proxy/domain/r./cgi-bin/tfriend/friend_show_qqfriends.cgi?uin=1968568204&follow_flag=1&groupface_flag=0&fupdate=1&g_tk=1618527651");get.addHeader("Accept","*/*");get.addHeader("Accept-Encoding", "gzip,deflate,sdch");get.addHeader("Accept-Language", "zh-CN,zh;q=0.8");get.addHeader("referer", "http://user./1968568204");get.addHeader("User-Agent","Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36");get.addHeader("Cookie","pgv_pvid=9819136700; pgv_info=ssid=s6397738714; rv2=80EE89992BE55328CF8338C99CFAEE34CBBC055C4F5ECF894A; property20=A7B48B66A2D072B8FF5247EDB8EDE20A6C9898B2079E2E522E2A57D73C545AFBB41C103681E2A7E5; __Q_w_s_hat_seed=1; __Q_w_s__QZN_TodoMsgCnt=1; pgv_pvi=9889131520; pgv_si=s7529074688; RK=p8ULeKXiGJ; ptui_loginuin=1968568204; ptisp=cnc; ptcz=deee8e0b7cc45b3e11aed27680441216e0f1de716869ceff0772f5c5dd54cf18; pt2gguin=o1968568204; uin=o1968568204; skey=@GmTwovsnK; p_uin=o1968568204; p_skey=g5EU8BU5M50Eg1Ry4*xxDFaBgCOLo2liCSUgI2VIIYg_; pt4_token=PZ9V0DRBiVLhaupZk*KSn3XXK7TZaYVpkZBzxaD08i8_; Loading=Yes; qzspeedup=sdch; blabla=dynamic; QZ_FE_WEBP_SUPPORT=1; cpu_performance_v8=1");try {CloseableHttpResponse response = client.execute(get);String bodyAsString = EntityUtils.toString(response.getEntity());bodyAsString = bodyAsString.substring(10,bodyAsString.length()-2);ObjectMapper objectMapper = new ObjectMapper();StringBuffer sb = new StringBuffer();sb.append("<html><head></head><body>");Map map = objectMapper.readValue(bodyAsString, Map.class);Map map2 = (Map) map.get("data");List<Map> map3 = (List<Map>) map2.get("items");for (int i = 0; i < map3.size(); i++) {sb.append("<p><img src="+map3.get(i).get("img")+"/>"+map3.get(i).get("uin") + "\n"+ "昵称："+map3.get(i).get("name")+"("+map3.get(i).get("remark")+")"+"\n</P>");}sb.append("</body></html>");String receiveEmail = "1968568204@";String receiveNick = "longyi";String subject = "Your QQ friends:";String contents = sb.toString();MailUtilByYock.sendMail(receiveEmail, receiveNick, subject, contents);response.close();client.close();} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}
最后利用QQ好友列表获取接口实现了：qq好友列表获取
还有微信好友列表获取了解更多可Q群：675172950 交流学习。
