C#微信开发-微信JS-SDK(1)之通过config接口注入权限验证配置

时间:2015-06-13 12:43:23   收藏:0   阅读:1229

官方文档是微信JS-SDK的使用步骤http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html#JSSDK.E4.BD.BF.E7.94.A8.E6.AD.A5.E9.AA.A4

,很多人在config接口注入权限验证配置的时候出现signature(签名无效),在这把自己开发的代码分享一下

一、验证权限我们需要获取四个参数appId、timestamp、nonceStr、signature
参数获取详细见官方文档:http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html#.E9.99.84.E5.BD.951-JS-SDK.E4.BD.BF.E7.94.A8.E6.9D.83.E9.99.90.E7.AD.BE.E5.90.8D.E7.AE.97.E6.B3.95
注意:①access_token获取方法见我之前的的文章http://www.cnblogs.com/net-xiejun/p/4422890.html

   ②jsapi_ticket获取到jsapi_ticket有效时间为7200s,因为每天获取的jsapi_ticket数量有限,所以也必须缓存,方法见代码
CS代码:
 1         #region 验证JsApi权限配置
 2         /// <summary>
 3         /// 获取JsApi权限配置的数组/四个参数
 4         /// </summary>
 5         /// <returns></returns>
 6         public string GetJsApiInfo(string Appid, string Appsecret)
 7         {
 8             string timestamp = CommonMethod.ConvertDateTimeInt(DateTime.Now).ToString();//生成签名的时间戳
 9             string nonceStr = CommonMethod.GetRandCode(16);//生成签名的随机串
10             string url = System.Web.HttpContext.Current.Request.Url.AbsoluteUri.ToString();//当前的地址
11             string jsapi_ticket = "";
12             //ticket 缓存7200秒
13             if (System.Web.HttpContext.Current.Session["jsapi_ticket"] == null)
14             {
15                 jsapi_ticket = CommonMethod.WebRequestPostOrGet("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + BasicApi.GetTokenSession(Appid, Appsecret) + "&type=jsapi", "");
16                 System.Web.HttpContext.Current.Session["jsapi_ticket"] = jsapi_ticket;
17                 System.Web.HttpContext.Current.Session.Timeout = 7200;
18             }
19             else
20             {
21                 jsapi_ticket = System.Web.HttpContext.Current.Session["jsapi_ticket"].ToString();
22             }
23             Dictionary<string, object> respDic = (Dictionary<string, object>)Jss.DeserializeObject(jsapi_ticket);
24             jsapi_ticket = respDic["ticket"].ToString();//获取ticket
25             string[] ArrayList = { "jsapi_ticket=" + jsapi_ticket, "timestamp=" + timestamp, "noncestr=" + nonceStr, "url=" + url };
26             Array.Sort(ArrayList);
27             string signature = string.Join("&", ArrayList);
28             signature = FormsAuthentication.HashPasswordForStoringInConfigFile(signature, "SHA1").ToLower();
29             return "{\"appId\":\"" + Appid + "\", \"timestamp\":" + timestamp + ",\"nonceStr\":\"" + nonceStr + "\",\"signature\":\"" + signature + "\"}";
30         }
31         #endregion

二、js文件,页面多的话建议单独见一个js文件 每次引用js文件 就可以,代码如下:

 1 /*!
 2 * http://xxxxx.com/ 谢俊个人博客
 3  * 使用前需要配置安全域名 在公众号后台微信功能设置
 4  * 引用js文件 http://res.wx.qq.com/open/js/jweixin-1.0.0.js 还有 jquery.js
 5  * Copyright 2015,谢俊
 6  * 时间:2015年6月9号 10:18
 7  */
 8 function wxconfig(data) {
 9     wx.config({
10         debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来,若要查看传入的参数,可以在pc端打开,参数信息会通过log打出,仅在pc端时才会打印。
11         appId: data.appId, // 必填,公众号的唯一标识
12         timestamp: data.timestamp, // 必填,生成签名的时间戳
13         nonceStr: data.nonceStr, // 必填,生成签名的随机串
14         signature: data.signature,// 必填,签名,见附录1
15         jsApiList: [
16         ‘checkJsApi‘,
17         ‘onMenuShareTimeline‘,
18         ‘onMenuShareAppMessage‘,
19         ‘onMenuShareQQ‘,
20         ‘onMenuShareWeibo‘,
21         ‘hideMenuItems‘,
22         ‘showMenuItems‘,
23         ‘hideAllNonBaseMenuItem‘,
24         ‘showAllNonBaseMenuItem‘,
25         ‘translateVoice‘,
26         ‘startRecord‘,
27         ‘stopRecord‘,
28         ‘onRecordEnd‘,
29         ‘playVoice‘,
30         ‘pauseVoice‘,
31         ‘stopVoice‘,
32         ‘uploadVoice‘,
33         ‘downloadVoice‘,
34         ‘chooseImage‘,
35         ‘previewImage‘,
36         ‘uploadImage‘,
37         ‘downloadImage‘,
38         ‘getNetworkType‘,
39         ‘openLocation‘,
40         ‘getLocation‘,
41         ‘hideOptionMenu‘,
42         ‘showOptionMenu‘,
43         ‘closeWindow‘,
44         ‘scanQRCode‘,
45         ‘chooseWXPay‘,
46         ‘openProductSpecificView‘,
47         ‘addCard‘,
48         ‘chooseCard‘,
49         ‘openCard‘
50         ] // 必填,需要使用的JS接口列表,所有JS接口列表见附录2
51     });
52 }
53 
54 wx.ready(function () {
55     //是否支持js接口
56     document.querySelector(‘#checkJsApi‘).onclick = function () {
57         wx.checkJsApi({
58             jsApiList: [
59               ‘onMenuShareTimeline‘,
60               ‘onMenuShareAppMessage‘,
61               ‘onMenuShareQQ‘,
62               ‘onMenuShareWeibo‘
63             ],
64             success: function (res) {
65                 alert(JSON.stringify(res));
66             }
67         });
68     };
69 })

三、页面调用,引用相关js文件后代码如下

<script>
    var data = ‘@Html.Raw(ViewData["JsApiirray"].ToString())‘;
    data = eval("(" + data + ")");//实例化
    wxconfig(data);
</script>

 注:JsApiirray为后台调用GetJsApiInfo方法获取的json格式的字符串"{\"appId\":\"" + Appid + "\", \"timestamp\":" + timestamp + ",\"nonceStr\":\"" + nonceStr + "\",\"signature\":\"" + signature + "\"}";

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