Unicode处理工具类。

        String url = String.format("https://api.weixin.qq.com/sns/userinfo?" +
                "access_token=%s&openid=%s", wxToken.getAccess_token(), wxToken.getOpenid());
        HttpClient.get(url, new TextCallback() {
            @Override
            public void onSuccess(Map<String, List<String>> headers, String result) {
                Logger.debug("获取微信用户信息UTF8-Emoji编码前:" + result);
                result = UnicodeUtils.emojiEncode(false, result);
                Logger.debug("获取微信用户信息UTF8-Emoji编码后:" + result);
                WXUserInfo wxUserInfo = new Gson().fromJson(result, WXUserInfo.class);
                WXAuthCallback callback = WeChatSDK.getAuthCallback();
                if (callback != null) {
                    callback.onUserInfoReceived(wxUserInfo);
                }
            }

            @Override
            public void onError(int code, Throwable throwable) {
                if (callback != null) {
                    callback.onTokenCheckFailed("微信用户信息获取出错: " + code);
                }
            }
        });

[
  {
    "name": "HASH KEY",
    "unified": "0023-FE0F-20E3",
    "docomo": "E6E0",
    "au": "EB84",
    "softbank": "E210",
    "google": "FE82C"
  },
  {
    "unified": "002A-FE0F-20E3"
  },
  {
    "name": "KEYCAP 0",
    "unified": "0030-FE0F-20E3",
    "docomo": "E6EB",
    "au": "E5AC",
    "softbank": "E225",
    "google": "FE837"
  },
  {
    "name": "KEYCAP 1",
    "unified": "0031-FE0F-20E3",
    "docomo": "E6E2",
    "au": "E522",
    "softbank": "E21C",
    "google": "FE82E"
  },
...省略...
]

{
  "E150": "0001F68F",
  "E030": "0001F338",
  "E151": "0001F6BB",
  "E152": "0001F46E",
  "E031": "0001F531",
  "E032": "0001F339",
  "E153": "0001F3E3",
...省略...
}

{
    "E150": "\uD83D\uDE8F",
    "E030": "\uD83C\uDF38",
    "E151": "\uD83D\uDEBB",
    "E152": "\uD83D\uDC6E",
    "E031": "\uD83D\uDD31",
    "E032": "\uD83C\uDF39",
    "E153": "\uD83C\uDFE3",
...省略...
}

{
  "E150": "🚏",
  "E030": "🌸",
  "E151": "🚻",
  "E152": "👮",
  "E031": "🔱",
  "E032": "🌹",
  "E153": "🏣",
...省略...
}