上一节，我们举例创建了公众平台标签"陕西"，之所以讲述微信公众号标签是因为最近有个需求，客户要求根据不同的用户展示不同的公众号菜单，所以去微信公众平台管理中心看了下个性化菜单的接口，其中就有一项，根据关注用户的标签来区分展示菜单。小编会在讲述完标签之后，还会示例利用微信公众平台标签创建个性化菜单。
1. 获取公众号已创建的标签
接口调用请求说明
http请求方式：GET（请使用https协议） https://api.weixin.qq.com/cgi-bin/tags/get?access_token=ACCESS_TOKEN
返回说明
{
"tags":[{
"id":1,
"name":"每天一罐可乐星人",
"count":0 //此标签下粉丝数
},{
"id":2,
"name":"星标组",
"count":0
},{
"id":127,
"name":"广东",
"count":5
}
]
}2. java代码获取标签示例
1),获取access_token
/***
* 获取token V型知识库 www.vxzsk.com
* @param appid
* @param appSecret
* @return
*/
public static String getToken(String appid,String appSecret){
String url ="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+appid+"&secret="+appSecret+"";
String backData=TestMenu.sendGet(url, "utf-8", 10000);
JSONObject jsonObject = JSONObject.fromObject(backData);
String access_token=jsonObject.getString("access_token");//调用接口凭证
return access_token;
}说明：appid 和 appSecret分别为应用id和应用秘钥，读者登录自己的公众号管理平台自行查询
TestMenu.sendGet代码
/***
* 模拟get请求 V型知识库 www.vxzsk.com
* @param url
* @param charset
* @param timeout
* @return
*/
public static String sendGet(String url, String charset, int timeout)
{
String result = "";
try
{
URL u = new URL(url);
try
{
URLConnection conn = u.openConnection();
conn.connect();
conn.setConnectTimeout(timeout);
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), charset));
String line="";
while ((line = in.readLine()) != null)
{
result = result + line;
}
in.close();
} catch (IOException e) {
return result;
}
}
catch (MalformedURLException e)
{
return result;
}
return result;
}2), 获取公众号已创建的标签示例代码
/****
* 获取标签
* @param access_token
* @return
*/
public static String getTags(String access_token){
String url ="https://api.weixin.qq.com/cgi-bin/tags/get?access_token=";//获取标签接口
String jsonData = TestMenu.sendGet(url+access_token,"utf-8",10000);
System.out.println("请求接口返回"+jsonData);
return jsonData;
}3. 完整代码示例 main方法 可直接执行(appid和appSecret替换为自己公众号)
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import net.sf.json.JSONObject;
/**
* V型知识库 www.vxzsk.com
* **/
public class TestMenu {
/***
* Post 请求*
*/
public static String sendPost(String requrl,String param){
URL url;
String sTotalString="";
try {
url = new URL(requrl);
URLConnection connection = url.openConnection();
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("Content-Type", "text/xml");
// connection.setRequestProperty("Content-Length", body.getBytes().length+"");
connection.setRequestProperty("User-Agent",
"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)");
connection.setDoOutput(true);
OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "utf-8");
out.write(param); // 向页面传递数据。post的关键所在！
out.flush();
out.close();
// 一旦发送成功，用以下方法就可以得到服务器的回应：
String sCurrentLine;
sCurrentLine = "";
sTotalString = "";
InputStream l_urlStream;
l_urlStream = connection.getInputStream();
// 传说中的三层包装阿！
BufferedReader l_reader = new BufferedReader(new InputStreamReader(
l_urlStream));
while ((sCurrentLine = l_reader.readLine()) != null) {
sTotalString += sCurrentLine + "\r\n";
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(sTotalString);
return sTotalString;
}
/***
* 模拟get请求
* @param url
* @param charset
* @param timeout
* @return
*/
public static String sendGet(String url, String charset, int timeout)
{
String result = "";
try
{
URL u = new URL(url);
try
{
URLConnection conn = u.openConnection();
conn.connect();
conn.setConnectTimeout(timeout);
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), charset));
String line="";
while ((line = in.readLine()) != null)
{
result = result + line;
}
in.close();
} catch (IOException e) {
return result;
}
}
catch (MalformedURLException e)
{
return result;
}
return result;
}
/***
* 获取token
* @param appid
* @param appSecret
* @return
*/
public static String getToken(String appid,String appSecret){
String url ="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+appid+"&secret="+appSecret+"";
String backData=TestMenu.sendGet(url, "utf-8", 10000);
JSONObject jsonObject = JSONObject.fromObject(backData);
String access_token=jsonObject.getString("access_token");//调用接口凭证
return access_token;
}
/***
* 创建标签
* @param access_token
* @return
*/
public static String createTags(String access_token){
//2,创建用户标签
String create_tags_url="https://api.weixin.qq.com/cgi-bin/tags/create?access_token=";//创建标签接口
String params = "{ \"tag\" : { \"name\" : \"陕西\"}}";
String jsonData = TestMenu.sendPost(create_tags_url+access_token, params);
System.out.println("请求接口返回"+jsonData);
return jsonData;
}
/****
* 获取标签
* @param access_token
* @return
*/
public static String getTags(String access_token){
String url ="https://api.weixin.qq.com/cgi-bin/tags/get?access_token=";//获取标签接口
String jsonData = TestMenu.sendGet(url+access_token,"utf-8",10000);
System.out.println("请求接口返回"+jsonData);
return jsonData;
}
/**
* @param args
*/
public static void main(String[] args) {
String appId = AppConst.APP_ID;//应用id
String appSecret = AppConst.APPSECRET;//应用秘钥
//1，获取access_token
String access_token = TestMenu.getToken(appId, appSecret);
System.out.println("token值："+access_token);
//2，获取公众号已创建的标签
String tags = TestMenu.getTags(access_token);
System.out.println("公众号已创建的标签："+tags);
}
}
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