获取token)
1.登录微信公众平台，在基本配置里获取AppId和AppSecret
2.获取token（token获取到存本地，后续API都要带token访问）
需要在基本配置里配置ip白名单才能获取到token
/** TokenURL */ private final static String GET_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}"; /** APP_ID */ private final static String APP_ID = "wx1234567891011121"; /** APP_SECRET */ private final static String APP_SECRET = "123qgs4vg5yt67vsf8r9bri1011j1i2b"; /** * 获取token，默认7200秒过期，所以存redis7200秒取一次 * * @return 获取用户详情 */ public String getToken() { String redisKey = "Tencent:AccessToken"; String token = (String)redisUtils.get(redisKey); if(ObjectUtils.isEmpty(token)){ token = tencentService.getToken(); //设置缓存 2小时 redisUtils.setEx(redisKey,token, 7200, TimeUnit.SECONDS); } return token; } //tencentService.getToken(); @Override public String getToken(){ try { HttpClient client = HttpClients.createDefault(); String tokenUrl = MessageFormat.format(GET_TOKEN_URL, APP_ID, APP_SECRET); HttpGet request = new HttpGet(tokenUrl); HttpResponse response = client.execute(request); JSONObject object = getResponseJson(response); if (object == null) { return null; } return ObjectUtils.isEmpty(object) ? null : object.getString("access_token"); }catch (Exception e){ log.info(e.getMessage()); } return null; } //getResponseJson(); private static JSONObject getResponseJson(HttpResponse response) throws IOException { JSONObject json = null; HttpEntity entity = response.getEntity(); if(entity!=null){ String result = EntityUtils.toString(entity,"UTF-8"); json = JSONObject.parseObject(result); } if(ObjectUtils.isEmpty(json)){ return null; } return json; }//可能用到的包 import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject; import com.baomidou.mybatisplus.core.toolkit.ObjectUtils; import com.baomidou.mybatisplus.core.toolkit.StringUtils; import lombok.extern.slf4j.Slf4j; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.HttpClients; import org.apache.http.util.EntityUtils; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.text.MessageFormat; import java.util.Date; import java.util.Map;
