java微信接口之二—获取用户组

 1 import java.util.Arrays;
 2 
 3 import org.apache.http.HttpEntity;
 4 import org.apache.http.HttpResponse;
 5 import org.apache.http.HttpStatus;
 6 import org.apache.http.client.HttpClient;
 7 import org.apache.http.client.methods.HttpGet;
 8 import org.apache.http.impl.client.DefaultHttpClient;
 9 import org.apache.http.util.EntityUtils;
10 
11 import com.google.gson.JsonArray;
12 import com.google.gson.JsonObject;
13 import com.google.gson.JsonParser;
14 
15 public class Test
16 {
17     public static final String GET_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token";// 获取access
18     public static final String GET_USER_GROUP = "https://api.weixin.qq.com/cgi-bin/groups/get"; // url
19     public static final String APP_ID = "wxa549b28c24cf341e";
20     public static final String SECRET = "78d8a8cd7a4fa700142d06b96bf44a37";
21 
22     /**
23      * 获取用户组信息
24      * 
25      * @param url
26      *            访问url
27      * @param token
28      *            access_token
29      * @return id字符串，每个id以,分割
30      */
31     public static String getGroups(String url, String token)
32     {
33         String groupurl = String.format("%s?access_token=%s", url, token);
34         System.out.println(groupurl);
35         HttpClient client = new DefaultHttpClient();
36         HttpGet get = new HttpGet(groupurl);
37         String result = null;
38         try
39         {
40             HttpResponse res = client.execute(get);
41             String responseContent = null; // 响应内容
42             HttpEntity entity = res.getEntity();
43             responseContent = EntityUtils.toString(entity, "UTF-8");
44             JsonParser jsonparer = new JsonParser();// 初始化解析json格式的对象
45             JsonObject json = jsonparer.parse(responseContent)
46                     .getAsJsonObject();// 将json字符串转换为json对象
47             if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK)// 成功返回消息
48             {
49                 if (json.get("errcode") == null)// 不存在错误消息，成功返回
50                 {
51                     JsonArray groups = json.getAsJsonArray("groups"); // 返回对象数组
52                     StringBuffer buffer = new StringBuffer();
53                     for (int i = 0; i < groups.size(); i++)
54                     {
55                         buffer.append(groups.get(i).getAsJsonObject().get("id")
56                                 .getAsString()
57                                 + ",");
58                     }
59                     result = buffer.toString();
60                 }
61             }
62         }
63         catch (Exception e)
64         {
65             e.printStackTrace();
66         }
67         finally
68         { // 关闭连接 ,释放资源
69             client.getConnectionManager().shutdown();
70             return result;
71         }
72     }
73 
74     public static void main(String[] args) throws Exception
75     {
76         System.out.println("=========1获取token=========");
77         String accessToken = getToken(GET_TOKEN_URL, APP_ID, SECRET);// 获取token在微信之一中的方法获取token
78         if (accessToken != null)// token成功获取
79         {
80             String ids = getGroups(GET_USER_GROUP, accessToken);
81             if (ids != null)
82             {
83                 String[] idarray = ids.split(",");// 用户组id数组
84                 System.out.println(ids);
85             }
86         }
87     }
88 }