微信支付官方坑太多，我们来精简
我把官方的代码，打包成了 an.wxapi.dll。
里面主要替换了下注释。呵呵。然后修改了几个地方。
修改一、Config.cs
1 namespace an.wxapi
2 {
3 public class WxPayConfig
4 {
5
6 public static string AppKey(string key)
7 {
8 return System.Configuration.ConfigurationManager.AppSettings[key];
9 }
10
11 /// <summary>
12 /// APPID：绑定支付的APPID（必须配置）
13 /// </summary>
14 public static string APPID {
15 get
16 {
17 return AppKey("wx_appid");
18 }
19 }
20
21 /// <summary>
22 /// KEY：商户支付密钥，参考开户邮件设置（必须配置）
23 /// </summary>
24 public static string KEY
25 {
26 get {
27 return AppKey("wx_key");
28 }
29 }
30 /// <summary>
31 /// 商户号（必须配置）
32 /// </summary>
33 public static string MCHID
34 {
35 get {
36 return AppKey("wx_mchid");
37 }
38 }
39 /// <summary>
40 /// APPSECRET：公众帐号secert（仅JSAPI支付的时候需要配置）
41 /// </summary>
42 public static string APPSECRET
43 {
44 get {
45 return AppKey("wx_appsecret");
46 }
47 }
48 /// <summary>
49 /// 证书路径,注意应该填写绝对路径（仅退款、撤销订单时需要）
50 /// </summary>
51 public static string SSLCERT_PATH
52 {
53 get
54 {
55 return AppKey("wx_sslcert_path");
56 }
57 }
58 /// <summary>
59 /// 证书密码，默认商户号为密码
60 /// </summary>
61 public static string SSLCERT_PASSWORD
62 {
63 get
64 {
65 return AppKey("wx_sslcert_password");
66 }
67 }
68
69 /// <summary>
70 /// 支付结果通知回调url，用于商户接收支付结果
71 /// </summary>
72 public static string NOTIFY_URL
73 {
74 get
75 {
76 return AppKey("wx_notify_url");
77 }
78 }
79
80 /// <summary>
81 /// 商户系统后台机器IP,此参数可手动配置也可在程序中自动获取
82 /// </summary>
83 public static string IP = "8.8.8.8";
84
85 /// <summary>
86 /// 代理服务器设置,默认IP和端口号分别为0.0.0.0和0，此时不开启代理（如有需要才设置）
87 /// </summary>
88 public static string PROXY_URL = "http://10.152.18.220:8080";
89
90 /// <summary>
91 ///上报信息配置，测速上报等级，0.关闭上报; 1.仅错误时上报; 2.全量上报
92 /// </summary>
93 public static int REPORT_LEVENL = 1;
94
95 /// <summary>
96 /// 日志等级，0.不输出日志；1.只输出错误信息; 2.输出错误和正常信息; 3.输出错误信息、正常信息和调试信息
97 /// </summary>
98
99 public static int LOG_LEVENL
100 {
101 get
102 {
103 string log_levenl = "0";
104 if(AppKey("log_leven")!="")
105 {
106 log_levenl = AppKey("log_leven");
107 }
108 return Convert.ToInt32(log_levenl);
109 }
110 }
111
112 }
113 }
只是把静态的替换成可以从web.config里面调用的。
修改二、HttpService.cs
1 namespace an.wxapi
2 {
3 /// <summary>
4 /// http连接基础类，负责底层的http通信
5 /// </summary>
6 public class HttpService
7 {
8
9 public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
10 {
11 //直接确认，否则打不开
12 return true;
13 }
14
15 public static string Post(string xml, string url, bool isUseCert, int timeout)
16 {
17 System.GC.Collect();//垃圾回收，回收没有正常关闭的http连接
18
19 string result = "";//返回结果
20
21 HttpWebRequest request = null;
22 HttpWebResponse response = null;
23 Stream reqStream = null;
24
25 try
26 {
27 //设置最大连接数
28 ServicePointManager.DefaultConnectionLimit = 200;
29 //设置https验证方式
30 if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
31 {
32 ServicePointManager.ServerCertificateValidationCallback =
33 new RemoteCertificateValidationCallback(CheckValidationResult);
34 }
35
36 /***************************************************************
37 * 下面设置HttpWebRequest的相关属性
38 * ************************************************************/
39 request = (HttpWebRequest)WebRequest.Create(url);
40
41 request.Method = "POST";
42 request.Timeout = timeout * 1000;
43
44 //设置代理服务器
45 //WebProxy proxy = new WebProxy(); //定义一个网关对象
46 //proxy.Address = new Uri(WxPayConfig.PROXY_URL); //网关服务器端口:端口
47 //request.Proxy = proxy;
48
49 //设置POST的数据类型和长度
50 request.ContentType = "text/xml";
51 byte[] data = System.Text.Encoding.UTF8.GetBytes(xml);
52 request.ContentLength = data.Length;
53
54 //是否使用证书
55 if (isUseCert)
56 {
57 string path = HttpContext.Current.Request.PhysicalApplicationPath;
58 X509Certificate2 cert = new X509Certificate2(path + WxPayConfig.SSLCERT_PATH, WxPayConfig.SSLCERT_PASSWORD);
59 request.ClientCertificates.Add(cert);
60 Log.Debug("WxPayApi", "PostXml used cert");
61 }
62
63 //往服务器写入数据
64 reqStream = request.GetRequestStream();
65 reqStream.Write(data, 0, data.Length);
66 reqStream.Close();
67
68 //获取服务端返回
69 response = (HttpWebResponse)request.GetResponse();
70
71 //获取服务端返回数据
72 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
73 result = sr.ReadToEnd().Trim();
74 sr.Close();
75 }
76 catch (System.Threading.ThreadAbortException e)
77 {
78 Log.Error("HttpService", "Thread - caught ThreadAbortException - resetting.");
79 Log.Error("Exception message: {0}", e.Message);
80 System.Threading.Thread.ResetAbort();
81 }
82 catch (WebException e)
83 {
84 Log.Error("HttpService", e.ToString());
85 if (e.Status == WebExceptionStatus.ProtocolError)
86 {
87 Log.Error("HttpService", "StatusCode : " + ((HttpWebResponse)e.Response).StatusCode);
88 Log.Error("HttpService", "StatusDescription : " + ((HttpWebResponse)e.Response).StatusDescription);
89 }
90 throw new WxPayException(e.ToString());
91 }
92 catch (Exception e)
93 {
94 Log.Error("HttpService", e.ToString());
95 throw new WxPayException(e.ToString());
96 }
97 finally
98 {
99 //关闭连接和流
100 if (response != null)
101 {
102 response.Close();
103 }
104 if (request != null)
105 {
106 request.Abort();
107 }
108 }
109 return result;
110 }
111
112 /// <summary>
113 /// 处理http GET请求，返回数据
114 /// </summary>
115 /// <param name="url">请求的url地址</param>
116 /// <returns>http GET成功后返回的数据，失败抛WebException异常</returns>
117 public static string Get(string url)
118 {
119 System.GC.Collect();
120 string result = "";
121
122 HttpWebRequest request = null;
123 HttpWebResponse response = null;
124
125 //请求url以获取数据
126 try
127 {
128 //设置最大连接数
129 ServicePointManager.DefaultConnectionLimit = 200;
130 //设置https验证方式
131 if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
132 {
133 ServicePointManager.ServerCertificateValidationCallback =
134 new RemoteCertificateValidationCallback(CheckValidationResult);
135 }
136
137 /***************************************************************
138 * 下面设置HttpWebRequest的相关属性
139 * ************************************************************/
140 request = (HttpWebRequest)WebRequest.Create(url);
141
142 request.Method = "GET";
143
144 //设置代理
145 //WebProxy proxy = new WebProxy();
146 //proxy.Address = new Uri(WxPayConfig.PROXY_URL);
147 //request.Proxy = proxy;
148
149 //获取服务器返回
150 response = (HttpWebResponse)request.GetResponse();
151
152 //获取HTTP返回数据
153 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
154 result = sr.ReadToEnd().Trim();
155 sr.Close();
156 }
157 catch (System.Threading.ThreadAbortException e)
158 {
159 Log.Error("HttpService", "Thread - caught ThreadAbortException - resetting.");
160 Log.Error("Exception message: {0}", e.Message);
161 System.Threading.Thread.ResetAbort();
162 }
163 catch (WebException e)
164 {
165 Log.Error("HttpService", e.ToString());
166 if (e.Status == WebExceptionStatus.ProtocolError)
167 {
168 Log.Error("HttpService", "StatusCode : " + ((HttpWebResponse)e.Response).StatusCode);
169 Log.Error("HttpService", "StatusDescription : " + ((HttpWebResponse)e.Response).StatusDescription);
170 }
171 throw new WxPayException(e.ToString());
172 }
173 catch (Exception e)
174 {
175 Log.Error("HttpService", e.ToString());
176 throw new WxPayException(e.ToString());
177 }
178 finally
179 {
180 //关闭连接和流
181 if (response != null)
182 {
183 response.Close();
184 }
185 if (request != null)
186 {
187 request.Abort();
188 }
189 }
190 return result;
191 }
192 }
193 }
主要注释掉了设置代理服务器，基本上就注释掉这个就可以用了。
前台页面，我只用了三个（JsApiPayPage.aspx,ProductPage.aspx,ResultNotifyPage.aspx）
因为我只需要做微信里面的网页支付，其他很多功能我都不需要。所以。BIN文件夹，也只需要LitJSON.dll，RestSharp.dll,an.wxapi.dll(我上面打包的)
ProductPage.aspx(主要获取用户的openid和access_token)
1 <%@ Page Language="C#" Inherits="an.web" %>
2 <%@ Import Namespace="an.wxapi" %>
3 <script runat="server">
4 protected override void OnLoad(EventArgs e)
5 {
6 JsApiPay jsApiPay = new JsApiPay(this);
7 jsApiPay.GetOpenidAndAccessToken();
8 wx_openid = jsApiPay.openid;
9 }
10 </script>
11 <!DOCTYPE html>
12 <html xmlns="http://www.w3.org/1999/xhtml">
13 <head>
14 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
15 <title></title>
16 </head>
17 <body>
18 <h2>商品一：价格为：1分</h2>
19 <p><a href="JsApiPayPage.aspx?openid=<%=wx_openid %>&total_fee=1&showwxpaytitle=1">去支付</a></p>
20 </body>
21 </html>
我比较懒，所以，我一般不用.cs文件，我喜欢写到一起。呵呵,（这样有个好处，不需要编译，即可运行。）
基本上是拿官方的过来，没怎么修改。
1 protected void Page_Load(object sender, EventArgs e)
2 {
3 Log.Info(this.GetType().ToString(), "page load");
4 if (!IsPostBack)
5 {
6 JsApiPay jsApiPay = new JsApiPay(this);
7 try
8 {
9 //调用【网页授权获取用户信息】接口获取用户的openid和access_token
10 jsApiPay.GetOpenidAndAccessToken();
11
12 //获取收货地址js函数入口参数
13 //wxEditAddrParam = jsApiPay.GetEditAddressParameters();
14 ViewState["openid"] = jsApiPay.openid;
15 }
16 catch (Exception ex)
17 {
18 Response.Write("<span style='color:#FF0000;font-size:20px'>" + "页面加载出错，请重试" +ex.Message +"</span>");
19 //Button1.Visible = false;
20 //Button2.Visible = false;
21 //Label1.Visible = false;
22 //Label2.Visible = false;
23 }
24 }
25 }
官方用的是ViewState这玩意，会产生庞大的垃圾代码，（反正我也不知道这玩意，有啥子用）
我的做法是：
1 namespace an
2 {
3 public class web : System.Web.UI.Page
4 {
5 public string wx_openid { get; set; }
6 public string wxJsApiParam { get; set; }
7 }
8 }
直接在an.web里面定义下属性，不完啦。
JsApiPayPage.aspx(这个页面用来提交支付请求)
1 <%@ Page Language="C#" Inherits="an.web" %>
2 <%@ Import Namespace="an.wxapi" %>
3 <script runat="server">
4 protected override void OnLoad(EventArgs e)
5 {
6 string openid = Request.QueryString["openid"];
7 string total_fee = Request.QueryString["total_fee"];
8
9 JsApiPay jsApiPay = new JsApiPay(this);
10 jsApiPay.openid = openid;
11 jsApiPay.total_fee = int.Parse(total_fee);
12
13 WxPayData unifiedOrderResult = jsApiPay.GetUnifiedOrderResult();
14 wxJsApiParam = jsApiPay.GetJsApiParameters();//获取H5调起JS API参数
15 }
16 </script>
17 <!DOCTYPE html>
18 <html xmlns="http://www.w3.org/1999/xhtml">
19 <head>
20 <meta http-equiv="content-type" content="text/html;charset=utf-8"/>
21 <meta name="viewport" content="width=device-width, initial-scale=1"/>
22 <title>微信支付样例-JSAPI支付</title>
23 </head>
24
25 <script type="text/javascript">
26
27 //调用微信JS api 支付
28 function jsApiCall()
29 {
30 WeixinJSBridge.invoke(
31 'getBrandWCPayRequest',
32 <%=wxJsApiParam%>,//josn串
33 function (res)
34 {
35 WeixinJSBridge.log(res.err_msg);
36 alert(res.err_code + res.err_desc + res.err_msg);
37 }
38 );
39 }
40
41 function callpay()
42 {
43 if (typeof WeixinJSBridge == "undefined")
44 {
45 if (document.addEventListener)
46 {
47 document.addEventListener('WeixinJSBridgeReady', jsApiCall, false);
48 }
49 else if (document.attachEvent)
50 {
51 document.attachEvent('WeixinJSBridgeReady', jsApiCall);
52 document.attachEvent('onWeixinJSBridgeReady', jsApiCall);
53 }
54 }
55 else
56 {
57 jsApiCall();
58 }
59 }
60
61 </script>
62
63 <body>
64 <input type="button" onclick="callpay()" value="立刻支付" />
65 </body>
66 </html>
ResultNotifyPage.aspx(回调)
1 <%@ Page Language="C#" Inherits="an.web" %>
2 <%@ Import Namespace="an.wxapi" %>
3 <script runat="server">
4 protected override void OnLoad(EventArgs e)
5 {
6 ResultNotify resultNotify = new ResultNotify(this);
7 resultNotify.ProcessNotify();
8 }
9 </script>
10 <!DOCTYPE html>
11 <html xmlns="http://www.w3.org/1999/xhtml">
12 <head>
13 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
14 <title></title>
15 </head>
16 <body>
17
18 </body>
19 </html>
很简单咯...
an.wxapi.dll 下载地址：http://files.cnblogs.com/files/ancms/an.wxapi.rar
本人很菜，希望以微薄之力帮助大家。
再次感谢：smallerpig
时间： 2024-11-02 12:49:25