调用获取用户信息接口代码：
 public CustomerVO getUserInfo(String code) {
     WxConf conf = getWxConf();
     
     if (!conf.openflag) {
      CustomerVO retVo = new CustomerVO();
      retVo.setOpenid(code);
      return retVo;
     }
     
     Map<String,String> map = getOpenIdAndAccessToken(conf.appId, conf.appSecret, conf.tokenUrl, code);
     String openId = map.get("openId");
     String accessToken = map.get("accessToken");
     
        String url =String.format(conf.userInfoUrl, accessToken, openId);
        LOGGER.info("http call wxapi[getUserInfo]...");
        String response = wxapiClient.httpCall(url, "GET", null); //httpsRequestToString(url, "GET", null);
        LOGGER.info("http call wxapi[getUserInfo] response:{}", response);
        JSONObject jsonObject = JSON.parseObject(response);


        CustomerVO retVo=new CustomerVO();
        retVo.setOpenid(openId);
        retVo.setCountry(jsonObject.getString("country"));
        retVo.setProvince(jsonObject.getString("province"));
        retVo.setCity(jsonObject.getString("city"));
        retVo.setSex(String.valueOf(jsonObject.getInteger("sex")));
        retVo.setNickname(jsonObject.getString("country"));
        retVo.setHeadimgurl(jsonObject.getString("headimgurl"));
        retVo.setLanguage(jsonObject.getString("language"));


        return retVo;
    }


下面是http请求的方法源码：
@Override
 public String httpCall(String url, String method, String body) {
  return httpsRequestToString(url, method, body);
 }


 private static String httpsRequestToString(String path, String method, String body) {
  if (path == null || method == null) {
   return null;
  }


  String response = null;
  InputStream inputStream = null;
  InputStreamReader inputStreamReader = null;
  BufferedReader bufferedReader = null;
  HttpsURLConnection conn = null;
  try {
   TrustManager[] tm = { new JEEWeiXinX509TrustManager() };
   SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
   sslContext.init(null, tm, new java.security.SecureRandom());
   SSLSocketFactory ssf = sslContext.getSocketFactory();
   URL url = new URL(path);
   conn = (HttpsURLConnection) url.openConnection();
   conn.setSSLSocketFactory(ssf);


   conn.setDoOutput(true);
   conn.setDoInput(true);
   conn.setUseCaches(false);
   conn.setRequestMethod(method);
   if (null != body) {
    OutputStream outputStream = conn.getOutputStream();
    outputStream.write(body.getBytes("UTF-8"));
    outputStream.close();
   }


   inputStream = conn.getInputStream();
   inputStreamReader = new InputStreamReader(inputStream, "UTF-8");
   bufferedReader = new BufferedReader(inputStreamReader);
   String str = null;
   StringBuffer buffer = new StringBuffer();
   while ((str = bufferedReader.readLine()) != null) {
    buffer.append(str);
   }


   response = buffer.toString();
   LOGGER.info("response:{}", response);
  } catch (Exception e) {
   e.printStackTrace();
   LOGGER.info("httpsRequestToString Exception:{}", e.getMessage());
  } finally {
   if (conn != null) {
    conn.disconnect();
   }
   try {
    bufferedReader.close();
    inputStreamReader.close();
    inputStream.close();
   } catch (IOException e) {
    e.printStackTrace();
    LOGGER.info("httpsRequestToString finally Exception:{}", e.getMessage());
   }
  }
  return response;
 }