C#
1.获取签名
public class WeiXinJsSignature
{
/// <summary>
/// 构造函数
/// </summary>
public WeiXinJsSignature()
{
string url = ConfigurationManager.AppSettings["UrlAddress"] + "/Home/Index";//分享的页面地址
Timestamp = GetTimeStamp();
Noncestr = Guid.NewGuid().ToString().Replace("-", "");
string jsapiTicket = GetTicket();
string sourceStr = string.Format("jsapi_ticket={0}&noncestr={1}×tamp={2}&url={3}", jsapiTicket, Noncestr, Timestamp, url);
Signature = GetSHA1(sourceStr);
}
/// <summary>
/// 公众号的唯一标识
/// </summary>
public string AppId { get; set; }
/// <summary>
/// 生成签名的时间戳
/// </summary>
public string Timestamp { get; set; }
/// <summary>
/// 生成签名的随机串
/// </summary>
public string Noncestr { get; set; }
/// <summary>
/// 签名
/// </summary>
public string Signature { get; set; }
/// <summary>
/// 获取JsApiTicket
/// </summary>
/// <returns></returns>
public string GetTicket()
{
string ticket = string.Empty;
try
{
string JsApiTicketUrl = System.Configuration.ConfigurationManager.AppSettings["JsApiTicket"];
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(JsApiTicketUrl);
request.Method = "GET";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
string JsApiTicketString = string.Empty;
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
JsApiTicketString = reader.ReadToEnd();
LogWriter.ToTrace(string.Format("获取JSAPITicke 结果：{0}", JsApiTicketString));
}
var jsApiTicketObj = new { Code = "", ErrorMessage = "", AppId = "", JsApiTicket = "" };
var ticketObj = JsonConvert.DeserializeAnonymousType(JsApiTicketString, jsApiTicketObj);
ticket = ticketObj.JsApiTicket;
AppId = ticketObj.AppId;
LogWriter.ToTrace(string.Format("获取JsApiTicket成功:{0} Appid:{1}", ticket, AppId));
}
catch (Exception ex)
{
LogWriter.ToError(string.Format("获取JsApiTicket失败:{0}", ex.ToString()));
}
return ticket;
}
/// <summary>
/// 获取当前时间戳
/// </summary>
/// <returns></returns>
private string GetTimeStamp()
{
DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
return ((int)(DateTime.Now - startTime).TotalSeconds).ToString();
}
/// <summary>
/// SHA1加密
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
private string GetSHA1(string source)
{
string rethash = "";
try
{
System.Security.Cryptography.SHA1 hash = System.Security.Cryptography.SHA1.Create();
System.Text.ASCIIEncoding encoder = new System.Text.ASCIIEncoding();
byte[] combined = encoder.GetBytes(source);
hash.ComputeHash(combined);
var sb = new StringBuilder();
foreach (var t in hash.Hash)
{
sb.Append(t.ToString("x2"));
}
rethash = sb.ToString();
//rethash = Convert.ToBase64String(hash.Hash);
}
catch (Exception ex)
{
LogWriter.ToError("加密失败 : " + ex.Message);
}
return rethash;
}
}
2.配置
appsettings配置 <add key="JsApiTicket" value="http://IP:port/api/JsApiTicket" /> <add key="UrlAddress" value="http://localhost:5876" /> 这个是部署的分享页面服务的地址
3.返回给前端签名
private WeiXinJsSignature GetSignature()
{
WeiXinJsSignature WXJsSign = new WeiXinJsSignature();
return WXJsSign;
}
ViewData["WeiXinJsSignature"] = JsonConvert.SerializeObject(GetSignature());
html
html
<input type="hidden" id="WeiXinJsSignature" value="@ViewData["WeiXinJsSignature"]" />
js
引入<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
WeiXinJsMng: {
WeiXinJsSignature: {},
init: function () {
var WeiXinJsSignature = $("#WeiXinJsSignature").val();
blogMng.WeiXinJsMng.WeiXinJsSignature = JSON.parse(WeiXinJsSignature);
var apiList = ['previewImage', 'onMenuShareTimeline', 'onMenuShareAppMessage', 'onMenuShareQQ', 'onMenuShareWeibo', 'onMenuShareQZone'];
//初始化配置
wx.config({
debug: false,
appId: blogMng.WeiXinJsMng.WeiXinJsSignature.AppId,
timestamp: blogMng.WeiXinJsMng.WeiXinJsSignature.Timestamp,
nonceStr: blogMng.WeiXinJsMng.WeiXinJsSignature.Noncestr,
signature: blogMng.WeiXinJsMng.WeiXinJsSignature.Signature,
jsApiList: apiList
});
window.share_config = {
"share": {
"imgUrl": "http://mweb.zhijiaxing.net/rvmeventshare/Content/Img/icon120.png",//分享图，默认当相对路径处理，所以使用绝对路径的的话，“http://”协议前缀必须在。
"desc": "车生活的美好瞬间尽在智驾行，快到碗里来...",//摘要,如果分享到朋友圈的话，不显示摘要。
"title": '智驾行-圈子日志分享',//分享卡片标题
"link": window.location.href,//分享出去后的链接，这里可以将链接设置为另一个页面。
"success": function () {//分享成功后的回调函数
},
'cancel': function () {
// 用户取消分享后执行的回调函数
}
}
};
wx.ready(function () {
wx.onMenuShareAppMessage(share_config.share);
wx.onMenuShareQQ(share_config.share);
wx.onMenuShareWeibo(share_config.share);
wx.onMenuShareQZone(share_config.share);
wx.onMenuShareTimeline(share_config.share);
});
} }
WeiXinJsMng.init();
这个是点击查看大图的js代码：你可以了解一下
imgPreview: function () {
var imgs = $("#BlogImgList").children("img");
var srcList = [];
$.each(imgs, function (i, item) {
if ($(item).attr("originalsrc").length > 0) {
srcList.push($(item).attr("originalsrc"));
$(item).click(function (e) {
// 通过这个API就能直接调起微信客户端的图片播放组件了
wx.previewImage({
current: $(this).attr("originalsrc"), // 当前显示图片的http链接
urls: srcList // 需要预览的图片http链接列表
});
});
}
});
}
微信H5页面再分享到朋友圈，朋友，qq,qq空间，qq微博不显示图表描述
原因：
获取微信签名需要四个参数
jsapi_ticket 调用http://172.31.240.5:9017/api/JsApiTicket获取，无需参数
noncestr 随机字符串
timestamp 时间戳
url 分享的h5页面地址（nginx域名+文件夹代理配置+控制器+方法+参数）
例如：http://mweb.zhijiaxing.net/circlerelationblog/Home/Index?type=11&id=5ea5b237-6ae5-49af-b7e5-64a583b1a321&ck=Zl8P3aQsTP36bskInAqlxL6p_yl9Z_emxvL8eTZsUiabYh22MoIVQw%3d%3d&from=singlemessage&isappinstalled=0
url错误导致签名报错 invalid signature
