Unity & 微信公众号 - 实现扫码关注登录

/// <summary>/// 获取access_token接口的响应结构/// </summary>[Serializable]
publicclassGetTokenResponse{
/// <summary>/// 获取到的凭证/// </summary>publicstringaccess_token;
/// <summary>/// 凭证有效时间，单位：秒/// </summary>publicintexpires_in;
}

usingSystem;
usingUnityEngine;
usingSystem.Collections;
usingUnityEngine.Networking;
publicclassGetTokenExample : MonoBehaviour{
//开发者IDprivateconststringappId="";
//开发者密码privateconststringappSecret="";
privatevoidStart()
    {
StartCoroutine(RequestCoroutine());
    }
privateIEnumeratorRequestCoroutine()
    {
stringurl=$"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={appId}&secret={appSecret}";
using(UnityWebRequestrequest=UnityWebRequest.Get(url))
        {
yieldreturnrequest.SendWebRequest();
if (request.result==UnityWebRequest.Result.Success)
            {
//这里使用LitJson反序列化 也可以使用其他序列化/反序列化工具varresponse=JsonMapper.ToObject<GetTokenResponse>(request.downloadHandler.text);
Debug.Log($"获取到的access_token：{response.access_token}");
Debug.Log($"access_token有效时间：{response.expires_in}秒");
            }
else            {
Debug.LogError($"获取access_token失败：{request.error}");
            }
        }
    }
}

[Serializable]
publicclassGetTicketPost{
/// <summary>/// 该二维码有效时间，以秒为单位。 最大不超过2592000（即30天），此字段如果不填，则默认有效期为60秒。/// </summary>publicintexpire_seconds;
/// <summary>/// 二维码类型，QR_SCENE为临时的整型参数值，QR_STR_SCENE为临时的字符串参数值，QR_LIMIT_SCENE为永久的整型参数值，QR_LIMIT_STR_SCENE为永久的字符串参数值/// </summary>publicstringaction_name;
/// <summary>/// 二维码详细信息/// </summary>publicActionInfoaction_info;
}
[Serializable]
publicclassActionInfo{
publicSceneInfoscene;
}
[Serializable]
publicclassSceneInfo{
/// <summary>/// 场景值ID，临时二维码时为32位非0整型，永久二维码时最大值为100000（目前参数只支持1--100000）/// </summary>publicintscene_id;
/// <summary>/// 场景值ID（字符串形式的ID），字符串类型，长度限制为1到64/// </summary>publicstringscene_str;
}
[Serializable]
publicclassGetTicketResponse{
/// <summary>/// 获取的二维码ticket，凭借此ticket可以在有效时间内换取二维码。/// </summary>publicstringticket;
/// <summary>/// 该二维码有效时间，以秒为单位。 最大不超过2592000（即30天）。/// </summary>publicintexpire_seconds;
/// <summary>/// 二维码图片解析后的地址，开发者可根据该地址自行生成需要的二维码图片/// </summary>publicstringurl;
}

usingSystem;
usingUnityEngine;
usingSystem.Text;
usingSystem.Collections;
usingUnityEngine.Networking;
publicclassGetTicketExample : MonoBehaviour{
privateconststringaccess_token="";
privatevoidStart()
    {
StartCoroutine(RequestCoroutine());
    }
privateIEnumeratorRequestCoroutine()
    {
stringurl=$"https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={access_token}";
vardata=newGetTicketPost()
        {
expire_seconds=604800,
action_name="QR_STR_SCENE",
action_info=newActionInfo()
            {
scene=newSceneInfo()
                {
scene_id=123,
scene_str="test"                }
            }
        };
using (UnityWebRequestrequest=UnityWebRequest.Post(url, UnityWebRequest.kHttpVerbPOST))
        {
stringjson=JsonMapper.ToJson(data);
byte[] bytes=Encoding.UTF8.GetBytes(json);
request.uploadHandler=newUploadHandlerRaw(bytes);
request.downloadHandler=newDownloadHandlerBuffer();
yieldreturnrequest.SendWebRequest();
if (request.result==UnityWebRequest.Result.Success)
            {
Debug.Log(request.downloadHandler.text);
//这里使用LitJson反序列化 也可以使用其他序列化/反序列化工具varresponse=JsonMapper.ToObject<GetTicketResponse>(request.downloadHandler.text);
Debug.Log($"获取到的ticket：{response.ticket}");
Debug.Log($"有效时间：{response.expire_seconds}秒");
Debug.Log($"url：{response.url}");
            }
else            {
Debug.LogError($"获取ticket失败：{request.error}");
            }
        }
    }
}

usingUnityEngine;
usingSystem.Text;
usingUnityEngine.UI;
usingSystem.Collections;
usingUnityEngine.Networking;
/// <summary>/// ticket换取二维码/// </summary>publicclassGetQRCodeExample : MonoBehaviour{
privateconststringticket="gQHc7zwAAAAAAAAAAS5odHRwOi8vd2VpeGluLnFxLmNvbS9xLzAyQWIwbzlOYVg4eVAxN3YtV055Y0UAAgRfRDFiAwSAOgkA";
privatevoidStart()
    {
StartCoroutine(RequestCoroutine());
    }
privateIEnumeratorRequestCoroutine()
    {
stringurl=$"https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket={UrlEncode(ticket)}";
using (UnityWebRequestrequest=UnityWebRequest.Get(url))
        {
request.downloadHandler=newDownloadHandlerTexture();
yieldreturnrequest.SendWebRequest();
if (request.result==UnityWebRequest.Result.Success)
            {
Texture2Dqrcode=DownloadHandlerTexture.GetContent(request);
Spritesprite=Sprite.Create(qrcode, newRect(0, 0, 430, 430), Vector2.zero);
newGameObject("二维码").AddComponent<SpriteRenderer>().sprite=sprite;
            }
else            {
Debug.LogError($"ticket换取二维码失败：{request.error}");
            }
        }
    }
publicstringUrlEncode(stringcontent)
    {
StringBuildersb=newStringBuilder();
foreach (charchincontent)
        {
if (ch>='0'&&ch<='9')
            {
sb.Append(ch);
            }
elseif (ch>='a'&&ch<='z'||ch>='A'&&ch<='Z')
            {
sb.Append(ch);
            }
elseif (ch>=0x4e00&&ch<=0x9fa5)
            {
foreach (bytebinEncoding.UTF8.GetBytes(ch.ToString()))
                {
sb.Append(@"%"+b.ToString("X"));
                }
            }
elseif ('-'==ch||'_'==ch||'.'==ch||'+'==ch||'*'==ch||'('==ch||')'==ch||','==ch||'&'==ch||'/'==ch||':'==ch||';'==ch||'='==ch||'?'==ch||'@'==ch||'`'==ch||'^'==ch||'['==ch||']'==ch||'<'==ch||'>'==ch)
            {
sb.Append(ch);
            }
else            {
foreach (bytebinEncoding.UTF8.GetBytes(ch.ToString()))// -_.+*(),&/:;=?@`~^[]<>                {
sb.Append(@"%"+b.ToString("X"));
                }
            }
        }
returnsb.ToString();
    }
}