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這篇文章主要介紹了微信開發(fā)中如何調用自定義分享接口，具有一定借鑒價值，感興趣的朋友可以參考下，希望大家閱讀完這篇文章之后大有收獲，下面讓小編帶著大家一起了解一下。
引言：
工作中開發(fā)微信網(wǎng)站，簡稱微網(wǎng)站。由于微網(wǎng)站的分享內容是系統(tǒng)自動選取的當前網(wǎng)址，客戶需要改變分享的內容，即點擊屏幕右上角的分享按鈕，選擇發(fā)送給朋友和發(fā)送到朋友圈，其中的內容和圖片需要自定義。于是查找文檔微信JS-SDK說明文檔一文和網(wǎng)站眾多高手的經驗，大體知道了調用的步驟，但是具體如何調用才能成功卻是不了解的。經過一番試驗，終于成功調用發(fā)送朋友和發(fā)送到朋友圈兩個接口，此處記錄調用的具體過程。
步驟一：引用js文件。
在需要調用JS接口的頁面引入如下JS文件，（支持https）：http://res.wx.qq.com/open/js/jweixin-1.0.0.js
步驟二:通過config接口注入權限驗證配置
wx.config({
debug: true, // 開啟調試模式,調用的所有api的返回值會在客戶端alert出來，若要查看傳入的參數(shù)，可以在pc端打開，參數(shù)信息會通過log打出，僅在pc端時才會打印。
appId: '', // 必填，公眾號的唯一標識
timestamp: , // 必填，生成簽名的時間戳
nonceStr: '', // 必填，生成簽名的隨機串
signature: '',// 必填，簽名，見附錄1
jsApiList: [] // 必填，需要使用的JS接口列表，所有JS接口列表見附錄2
});網(wǎng)上眾多網(wǎng)友也是這樣寫的，但是具體如果配卻談之甚少，接下來介紹本文是如何調用的。
debug和appId，都不用說，很簡單。
timespan生成簽名的時間戳：
/// <summary>
/// 生成時間戳
/// 從 1970 年 1 月 1 日 00：00：00 至今的秒數(shù)，即當前的時間，且最終需要轉換為字符串形式
/// </summary>
/// <returns></returns>
public string getTimestamp()
{
TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
return Convert.ToInt64(ts.TotalSeconds).ToString();
}nonceStr生成簽名的隨機串：
/// <summary>
/// 生成隨機字符串
/// </summary>
/// <returns></returns>
public string getNoncestr()
{
Random random = new Random();
return MD5Util.GetMD5(random.Next(1000).ToString(), "GBK");
}/// <summary>
/// MD5Util 的摘要說明。 /// </summary>
public class MD5Util
{ public MD5Util()
{ //
// TODO: 在此處添加構造函數(shù)邏輯
//
}
/** 獲取大寫的MD5簽名結果 */
public static string GetMD5(string encypStr, string charset)
{ string retStr;
MD5CryptoServiceProvider m5 = new MD5CryptoServiceProvider();
//創(chuàng)建md5對象
byte[] inputBye; byte[] outputBye;
//使用GB2312編碼方式把字符串轉化為字節(jié)數(shù)組．
try
{
inputBye = Encoding.GetEncoding(charset).GetBytes(encypStr);
} catch (Exception ex)
{
inputBye = Encoding.GetEncoding("GB2312").GetBytes(encypStr);
}
outputBye = m5.ComputeHash(inputBye);
retStr = System.BitConverter.ToString(outputBye);
retStr = retStr.Replace("-", "").ToUpper();
return retStr;
}
}View Code
/// <summary>
/// MD5Util 的摘要說明。
/// </summary>
public class MD5Util
{
public MD5Util()
{
//
// TODO: 在此處添加構造函數(shù)邏輯
//
}
/** 獲取大寫的MD5簽名結果 */
public static string GetMD5(string encypStr, string charset)
{
string retStr;
MD5CryptoServiceProvider m5 = new MD5CryptoServiceProvider();
//創(chuàng)建md5對象
byte[] inputBye;
byte[] outputBye;
//使用GB2312編碼方式把字符串轉化為字節(jié)數(shù)組．
try
{
inputBye = Encoding.GetEncoding(charset).GetBytes(encypStr);
}
catch (Exception ex)
{
inputBye = Encoding.GetEncoding("GB2312").GetBytes(encypStr);
}
outputBye = m5.ComputeHash(inputBye);
retStr = System.BitConverter.ToString(outputBye);
retStr = retStr.Replace("-", "").ToUpper();
return retStr;
}
}singature簽名的生成比較麻煩。
首先生成獲取access_token（有效期7200秒，開發(fā)者必須在自己的服務全局緩存access_token）
public string Getaccesstoken()
{
string appid = System.Configuration.ConfigurationManager.AppSettings["WXZjAppID"].ToString();
string secret = System.Configuration.ConfigurationManager.AppSettings["WXZjAppSecret"].ToString();
string urljson = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appid + "&secret=" + secret;
string strjson = "";
UTF8Encoding encoding = new UTF8Encoding();
HttpWebRequest myRequest =
(HttpWebRequest)WebRequest.Create(urljson);
myRequest.Method = "GET";
myRequest.ContentType = "application/x-www-form-urlencoded";
HttpWebResponse response;
Stream responseStream;
StreamReader reader;
string srcString;
response = myRequest.GetResponse() as HttpWebResponse;
responseStream = response.GetResponseStream();
reader = new System.IO.StreamReader(responseStream, Encoding.UTF8);
srcString = reader.ReadToEnd();
reader.Close();
if (srcString.Contains("access_token"))
{
//CommonJsonModel model = new CommonJsonModel(srcString);
HP.CPS.BLL.WeiXin.CommonJsonModel model = new BLL.WeiXin.CommonJsonModel(srcString);
strjson = model.GetValue("access_token");
Session["access_tokenzj"] = strjson;
}
return strjson;
}public class CommonJsonModelAnalyzer
{ protected string _GetKey(string rawjson)
{ if (string.IsNullOrEmpty(rawjson)) return rawjson;
rawjson = rawjson.Trim(); string[] jsons = rawjson.Split(new char[] { ':' }); if (jsons.Length < 2) return rawjson; return jsons[0].Replace("\"", "").Trim();
} protected string _GetValue(string rawjson)
{ if (string.IsNullOrEmpty(rawjson)) return rawjson;
rawjson = rawjson.Trim(); string[] jsons = rawjson.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries); if (jsons.Length < 2) return rawjson;
StringBuilder builder = new StringBuilder(); for (int i = 1; i < jsons.Length; i++)
{
builder.Append(jsons[i]);
builder.Append(":");
} if (builder.Length > 0)
builder.Remove(builder.Length - 1, 1); string value = builder.ToString(); if (value.StartsWith("\""))
value = value.Substring(1); if (value.EndsWith("\""))
value = value.Substring(0, value.Length - 1); return value;
} protected List<string> _GetCollection(string rawjson)
{ //[{},{}]
List<string> list = new List<string>(); if (string.IsNullOrEmpty(rawjson)) return list;
rawjson = rawjson.Trim();
StringBuilder builder = new StringBuilder(); int nestlevel = -1; int mnestlevel = -1; for (int i = 0; i < rawjson.Length; i++)
{ if (i == 0) continue; else if (i == rawjson.Length - 1) continue; char jsonchar = rawjson[i]; if (jsonchar == '{')
{
nestlevel++;
} if (jsonchar == '}')
{
nestlevel--;
} if (jsonchar == '[')
{
mnestlevel++;
} if (jsonchar == ']')
{
mnestlevel--;
} if (jsonchar == ',' && nestlevel == -1 && mnestlevel == -1)
{
list.Add(builder.ToString());
builder = new StringBuilder();
} else
{
builder.Append(jsonchar);
}
} if (builder.Length > 0)
list.Add(builder.ToString()); return list;
}
} public class CommonJsonModel : CommonJsonModelAnalyzer
{ private string rawjson; private bool isValue = false; private bool isModel = false; private bool isCollection = false; public CommonJsonModel(string rawjson)
{ this.rawjson = rawjson; if (string.IsNullOrEmpty(rawjson)) throw new Exception("missing rawjson");
rawjson = rawjson.Trim(); if (rawjson.StartsWith("{"))
{
isModel = true;
} else if (rawjson.StartsWith("["))
{
isCollection = true;
} else
{
isValue = true;
}
} public string Rawjson
{ get { return rawjson; }
} public bool IsValue()
{ return isValue;
} public bool IsValue(string key)
{ if (!isModel) return false; if (string.IsNullOrEmpty(key)) return false; foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson); if (!model.IsValue()) continue; if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value); return submodel.IsValue();
}
} return false;
} public bool IsModel()
{ return isModel;
} public bool IsModel(string key)
{ if (!isModel) return false; if (string.IsNullOrEmpty(key)) return false; foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson); if (!model.IsValue()) continue; if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value); return submodel.IsModel();
}
} return false;
} public bool IsCollection()
{ return isCollection;
} public bool IsCollection(string key)
{ if (!isModel) return false; if (string.IsNullOrEmpty(key)) return false; foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson); if (!model.IsValue()) continue; if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value); return submodel.IsCollection();
}
} return false;
} /// <summary>
/// 當模型是對象，返回擁有的key /// </summary>
/// <returns></returns>
public List<string> GetKeys()
{ if (!isModel) return null;
List<string> list = new List<string>(); foreach (string subjson in base._GetCollection(this.rawjson))
{ string key = new CommonJsonModel(subjson).Key; if (!string.IsNullOrEmpty(key))
list.Add(key);
} return list;
} /// <summary>
/// 當模型是對象，key對應是值，則返回key對應的值 /// </summary>
/// <param name="key"></param>
/// <returns></returns>
public string GetValue(string key)
{ if (!isModel) return null; if (string.IsNullOrEmpty(key)) return null; foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson); if (!model.IsValue()) continue; if (model.Key == key) return model.Value;
} return null;
} /// <summary>
/// 模型是對象，key對應是對象，返回key對應的對象 /// </summary>
/// <param name="key"></param>
/// <returns></returns>
public CommonJsonModel GetModel(string key)
{ if (!isModel) return null; if (string.IsNullOrEmpty(key)) return null; foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson); if (!model.IsValue()) continue; if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value); if (!submodel.IsModel()) return null; else
return submodel;
}
} return null;
} /// <summary>
/// 模型是對象，key對應是集合，返回集合 /// </summary>
/// <param name="key"></param>
/// <returns></returns>
public CommonJsonModel GetCollection(string key)
{ if (!isModel) return null; if (string.IsNullOrEmpty(key)) return null; foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson); if (!model.IsValue()) continue; if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value); if (!submodel.IsCollection()) return null; else
return submodel;
}
} return null;
} /// <summary>
/// 模型是集合，返回自身 /// </summary>
/// <returns></returns>
public List<CommonJsonModel> GetCollection()
{
List<CommonJsonModel> list = new List<CommonJsonModel>(); if (IsValue()) return list; foreach (string subjson in base._GetCollection(rawjson))
{
list.Add(new CommonJsonModel(subjson));
} return list;
} /// <summary>
/// 當模型是值對象，返回key /// </summary>
private string Key
{ get
{ if (IsValue()) return base._GetKey(rawjson); return null;
}
} /// <summary>
/// 當模型是值對象，返回value /// </summary>
private string Value
{ get
{ if (!IsValue()) return null; return base._GetValue(rawjson);
}
}
}View Code
public class CommonJsonModelAnalyzer
{
protected string _GetKey(string rawjson)
{
if (string.IsNullOrEmpty(rawjson))
return rawjson;
rawjson = rawjson.Trim();
string[] jsons = rawjson.Split(new char[] { ':' });
if (jsons.Length < 2)
return rawjson;
return jsons[0].Replace("\"", "").Trim();
}
protected string _GetValue(string rawjson)
{
if (string.IsNullOrEmpty(rawjson))
return rawjson;
rawjson = rawjson.Trim();
string[] jsons = rawjson.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
if (jsons.Length < 2)
return rawjson;
StringBuilder builder = new StringBuilder();
for (int i = 1; i < jsons.Length; i++)
{
builder.Append(jsons[i]);
builder.Append(":");
}
if (builder.Length > 0)
builder.Remove(builder.Length - 1, 1);
string value = builder.ToString();
if (value.StartsWith("\""))
value = value.Substring(1);
if (value.EndsWith("\""))
value = value.Substring(0, value.Length - 1);
return value;
}
protected List<string> _GetCollection(string rawjson)
{
//[{},{}]
List<string> list = new List<string>();
if (string.IsNullOrEmpty(rawjson))
return list;
rawjson = rawjson.Trim();
StringBuilder builder = new StringBuilder();
int nestlevel = -1;
int mnestlevel = -1;
for (int i = 0; i < rawjson.Length; i++)
{
if (i == 0)
continue;
else if (i == rawjson.Length - 1)
continue;
char jsonchar = rawjson[i];
if (jsonchar == '{')
{
nestlevel++;
}
if (jsonchar == '}')
{
nestlevel--;
}
if (jsonchar == '[')
{
mnestlevel++;
}
if (jsonchar == ']')
{
mnestlevel--;
}
if (jsonchar == ',' && nestlevel == -1 && mnestlevel == -1)
{
list.Add(builder.ToString());
builder = new StringBuilder();
}
else
{
builder.Append(jsonchar);
}
}
if (builder.Length > 0)
list.Add(builder.ToString());
return list;
}
}
public class CommonJsonModel : CommonJsonModelAnalyzer
{
private string rawjson;
private bool isValue = false;
private bool isModel = false;
private bool isCollection = false;
public CommonJsonModel(string rawjson)
{
this.rawjson = rawjson;
if (string.IsNullOrEmpty(rawjson))
throw new Exception("missing rawjson");
rawjson = rawjson.Trim();
if (rawjson.StartsWith("{"))
{
isModel = true;
}
else if (rawjson.StartsWith("["))
{
isCollection = true;
}
else
{
isValue = true;
}
}
public string Rawjson
{
get { return rawjson; }
}
public bool IsValue()
{
return isValue;
}
public bool IsValue(string key)
{
if (!isModel)
return false;
if (string.IsNullOrEmpty(key))
return false;
foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson);
if (!model.IsValue())
continue;
if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value);
return submodel.IsValue();
}
}
return false;
}
public bool IsModel()
{
return isModel;
}
public bool IsModel(string key)
{
if (!isModel)
return false;
if (string.IsNullOrEmpty(key))
return false;
foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson);
if (!model.IsValue())
continue;
if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value);
return submodel.IsModel();
}
}
return false;
}
public bool IsCollection()
{
return isCollection;
}
public bool IsCollection(string key)
{
if (!isModel)
return false;
if (string.IsNullOrEmpty(key))
return false;
foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson);
if (!model.IsValue())
continue;
if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value);
return submodel.IsCollection();
}
}
return false;
}
/// <summary>
/// 當模型是對象，返回擁有的key
/// </summary>
/// <returns></returns>
public List<string> GetKeys()
{
if (!isModel)
return null;
List<string> list = new List<string>();
foreach (string subjson in base._GetCollection(this.rawjson))
{
string key = new CommonJsonModel(subjson).Key;
if (!string.IsNullOrEmpty(key))
list.Add(key);
}
return list;
}
/// <summary>
/// 當模型是對象，key對應是值，則返回key對應的值
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public string GetValue(string key)
{
if (!isModel)
return null;
if (string.IsNullOrEmpty(key))
return null;
foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson);
if (!model.IsValue())
continue;
if (model.Key == key)
return model.Value;
}
return null;
}
/// <summary>
/// 模型是對象，key對應是對象，返回key對應的對象
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public CommonJsonModel GetModel(string key)
{
if (!isModel)
return null;
if (string.IsNullOrEmpty(key))
return null;
foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson);
if (!model.IsValue())
continue;
if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value);
if (!submodel.IsModel())
return null;
else
return submodel;
}
}
return null;
}
/// <summary>
/// 模型是對象，key對應是集合，返回集合
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public CommonJsonModel GetCollection(string key)
{
if (!isModel)
return null;
if (string.IsNullOrEmpty(key))
return null;
foreach (string subjson in base._GetCollection(this.rawjson))
{
CommonJsonModel model = new CommonJsonModel(subjson);
if (!model.IsValue())
continue;
if (model.Key == key)
{
CommonJsonModel submodel = new CommonJsonModel(model.Value);
if (!submodel.IsCollection())
return null;
else
return submodel;
}
}
return null;
}
/// <summary>
/// 模型是集合，返回自身
/// </summary>
/// <returns></returns>
public List<CommonJsonModel> GetCollection()
{
List<CommonJsonModel> list = new List<CommonJsonModel>();
if (IsValue())
return list;
foreach (string subjson in base._GetCollection(rawjson))
{
list.Add(new CommonJsonModel(subjson));
}
return list;
}
/// <summary>
/// 當模型是值對象，返回key
/// </summary>
private string Key
{
get
{
if (IsValue())
return base._GetKey(rawjson);
return null;
}
}
/// <summary>
/// 當模型是值對象，返回value
/// </summary>
private string Value
{
get
{
if (!IsValue())
return null;
return base._GetValue(rawjson);
}
}
}接著獲取jsapi_ticket：
用第一步拿到的access_token 采用http GET方式請求獲得jsapi_ticket（有效期7200秒，開發(fā)者必須在自己的服務全局緩存jsapi_ticket）
public string Getjsapi_ticket()
{
string accesstoken = (string)Session["access_tokenzj"];
string urljson = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + accesstoken + "&type=jsapi";
string strjson = "";
UTF8Encoding encoding = new UTF8Encoding();
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(urljson);
myRequest.Method = "GET";
myRequest.ContentType = "application/x-www-form-urlencoded";
HttpWebResponse response = myRequest.GetResponse() as HttpWebResponse;
Stream responseStream = response.GetResponseStream();
StreamReader reader = new System.IO.StreamReader(responseStream, Encoding.UTF8);
string srcString = reader.ReadToEnd();
reader.Close();
if (srcString.Contains("ticket"))
{
HP.CPS.BLL.WeiXin.CommonJsonModel model = new BLL.WeiXin.CommonJsonModel(srcString);
strjson = model.GetValue("ticket");
Session["ticketzj"] = strjson;
}
return strjson;
}最后生成signature：
public string Getsignature(string nonceStr, string timespanstr)
{
if (Session["access_tokenzj"] == null)
{
Getaccesstoken();
}
if (Session["ticketzj"] == null)
{
Getjsapi_ticket();
}
string url = Request.Url.ToString();
string str = "jsapi_ticket=" + (string)Session["ticketzj"] + "&noncestr=" + nonceStr +
"×tamp=" + timespanstr + "&url=" + url;// +"&wxref=mp.weixin.qq.com";
string singature = SHA1Util.getSha1(str);
string ss = singature;
return ss;
}class SHA1Util
{
public static String getSha1(String str)
{
//建立SHA1對象
SHA1 sha = new SHA1CryptoServiceProvider();
//將mystr轉換成byte[]
ASCIIEncoding enc = new ASCIIEncoding();
byte[] dataToHash = enc.GetBytes(str);
//Hash運算
byte[] dataHashed = sha.ComputeHash(dataToHash);
//將運算結果轉換成string
string hash = BitConverter.ToString(dataHashed).Replace("-", "");
return hash;
}
}class SHA1Util
{ public static String getSha1(String str)
{ //建立SHA1對象
SHA1 sha = new SHA1CryptoServiceProvider(); //將mystr轉換成byte[]
ASCIIEncoding enc = new ASCIIEncoding(); byte[] dataToHash = enc.GetBytes(str); //Hash運算
byte[] dataHashed = sha.ComputeHash(dataToHash); //將運算結果轉換成string
string hash = BitConverter.ToString(dataHashed).Replace("-", ""); return hash;
}
}View Code
本文調用實例：
<script type="text/javascript">
wx.config({
debug: false,
appId: '<%=corpid %>',
timestamp: <%=timestamp%>,
nonceStr: '<%=nonceStr%>',
signature: '<%=signature %>',
jsApiList: ['onMenuShareTimeline', 'onMenuShareAppMessage']
});
</script>步驟三：調用接口
在進行完第二步的調用后，步驟三就顯得非常輕巧了。
wx.ready(function(){ // config信息驗證后會執(zhí)行ready方法，所有接口調用都必須在config接口獲得結果之后，config是一個客戶端的異步操作，所以如果需要在頁面加載時就調用相關接口，則須把相關接口放在ready函數(shù)中調用來確保正確執(zhí)行。對于用戶觸發(fā)時才調用的接口，則可以直接調用，不需要放在ready函數(shù)中。});本文的調用實例是：
<script type="text/javascript" >
wx.ready(function () {
wx.onMenuShareAppMessage({
title: '<%=shareTitle %>',
desc: '<%=shareContent %>',
link: '<%=currentUrl %>',
imgUrl: '<%=shareImageUrl %>'
});
wx.onMenuShareTimeline({
title: '<%=shareContent %>',
link: '<%=currentUrl %>',
imgUrl: '<%=shareImageUrl %>'
});
})
</script><script type="text/javascript" >
wx.ready(function () {
wx.onMenuShareAppMessage({
title: '<%=shareTitle %>',
desc: '<%=shareContent %>',
link: '<%=currentUrl %>',
imgUrl: '<%=shareImageUrl %>'
});
wx.onMenuShareTimeline({
title: '<%=shareContent %>',
link: '<%=currentUrl %>',
imgUrl: '<%=shareImageUrl %>'
});
})
</script>感謝你能夠認真閱讀完這篇文章，希望小編分享的“微信開發(fā)中如何調用自定義分享接口”這篇文章對大家有幫助，同時也希望大家多多支持億速云，關注億速云行業(yè)資訊頻道，更多相關知識等著你來學習!
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