從ASP.NET網站發佈到Facebook頁面

Question

如何在asp.net網站上張貼Facebook頁面的牆上的內容。

谷歌搜索說，我必須創建一個應用程序來做到這一點。是否有可能發佈到Facebook牆而不創建應用程序？

不確定從哪裏開始。我嘗試了developers.facebook.com和csharpsdk.org。沒多少運氣。有沒有例子？或使用圖形API的教程？

Answer 1

在Facebook上創建應用程序是FB接受你的信息的最低要求。你所問的沒有多大意義。想象一下，如果任何人都可以向FB發帖，我們可能不會在這裏討論這件事（它現在已經死了，我很高興它是這樣）我建議你閱讀這些鏈接以便快速入門

• FB API一般： http://developers.facebook.com/docs/reference/javascript/FB.api/
• C＃SDK：http://developers.facebook.com/blog/post/395/
• 圖形API：http://developers.facebook.com/docs/reference/api/

希望這給一些出發點。祝你好運

Answer 2

當您在Facebook上創建應用程序的東西，讓你的獨特的應用程序ID和密碼使用以下（代碼後面）

using System; 
using System.Collections.Generic; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Globalization; 
using System.IO; 
using System.Net; 
using System.Runtime.Serialization.Json; 
using System.Web.Security; 
using System.Xml; 
using System.Collections.Specialized; 

namespace WebApplication1 
{ 
    public partial class _Default : System.Web.UI.Page 
    { 
     readonly static string myurl = "your url"; 
     readonly static string App_ID = "Your application id"; 
     readonly static string App_Secret = "your secret code"; 
     readonly static string scope = "email"; 
     FacebookUser me; 
     readonly static DataContractJsonSerializer userSerializer = new DataContractJsonSerializer(typeof(FacebookUser)); 


     protected void Page_Load(object sender, EventArgs e) 
     { 
      if (Session["code"] == null) 
      { 
       fbLogin.Visible = true; 
      } 
      else 
      { 
       fbLogin.Visible = false; 
      } 
     } 


     protected override void OnLoad(EventArgs e) 
     { 
      base.OnLoad(e); 
      if ((!IsPostBack) || Session["code"] == null) 
      { 
       string code = Request.QueryString["code"]; 
       if (code == null) 
       { 
        Session["code"] = null; 
       } 
       else 
       { 
        Session["code"] = code; 

        // oAuth = new oAuthFacebook(); 
        //// oAuthFacebook oFB = new oAuthFacebook(); 
        // //Response.Redirect(oFB.AuthorizationLinkGet()); 
        // oAuth.AccessTokenGet(Request["code"]); 
        // if (oAuth.Token.Length > 0) 
        // { 
        //  //We now have the credentials, so we can start making API calls 
        //  string url = "https://graph.facebook.com/me/likes?access_token=" + oAuth.Token; 
        //  string json = oAuth.WebRequest(oAuthFacebook.Method.GET, url, String.Empty); 
        // } 


       } 


       string error_description = Request.QueryString["error_description"]; 
       string originalReturnUrl = Request.QueryString["ReturnUrl"]; // asp.net logon param 
       Uri backHereUri = Request.Url; // modify for dev server 
       if (!string.IsNullOrEmpty(code)) // user is authenticated 
       { 
        me = GetUserDetails(code, backHereUri); 
        FormsAuthentication.SetAuthCookie(me.email, false); // authorize! 
        if (!string.IsNullOrEmpty(originalReturnUrl)) 
         Response.Redirect(originalReturnUrl); 
       } 
       if (!string.IsNullOrEmpty(error_description)) // user propably disallowed 
       { 
        OnError(error_description); 
       } 

       fbLogin.Visible = !User.Identity.IsAuthenticated; 

       if (string.IsNullOrEmpty(code)) 
       { 
        fbLogin.Visible = true; 
        LoginName1.Visible = false; 
       } 
       else 
       { 
        fbLogin.Visible = false; 
        LoginName1.Visible = true; 
        LoginName1.Text = "User Email: " + me.email.ToString() + " Name: " + me.first_name.ToString() + " Sname: " + me.last_name.ToString() + " Verified: " + me.verified.ToString(); 
       } 

       fbLogin.NavigateUrl = string.Format(
        CultureInfo.InvariantCulture, 
        "https://www.facebook.com/dialog/oauth?" 
        + "client_id={0}&scope={1}&redirect_uri={2}", 
        App_ID, 
        scope, 
        Uri.EscapeDataString(backHereUri.OriginalString)); 
      } 

     } 

     FacebookUser GetUserDetails(string code, Uri backHereUri) 
     { 
      Uri getTokenUri = new Uri(
       string.Format(
       CultureInfo.InvariantCulture, 
       "https://graph.facebook.com/oauth/access_token?" 
       + "client_id={0}&client_secret={1}&code={2}&redirect_uri={3}", 
       App_ID, 
       App_Secret, 
       Uri.EscapeDataString(code), 
       Uri.EscapeDataString(backHereUri.OriginalString)) 
       ); 
      using (var wc = new WebClient()) 
      { 
       string token = wc.DownloadString(getTokenUri); 
       Session["token"] = token; 
       Uri getMeUri = new Uri(
        string.Format(
        CultureInfo.InvariantCulture, 
        "https://graph.facebook.com/me?{0}", 
        token) 
        ); 
       using (var ms = new MemoryStream(wc.DownloadData(getMeUri))) 
       { 
        var me = (FacebookUser)userSerializer.ReadObject(ms); 
        return me; 
       } 
      } 
     } 

     void OnError(string error_description) 
     { 
      Controls.Add(new Label() 
      { 
       CssClass = "oauth-error", 
       Text = error_description 
      } 
      ); 
     } 

     [Serializable] 
     class FacebookUser 
     { 
      public long id; 
      public string name; 
      public string first_name; 
      public string last_name; 
      public string link; 
      public string email; 
      public string timezone; 
      public string locale; 
      public bool verified; 
      public string updated_time; 
     } 



     protected void Button1_Click(object sender, EventArgs e) 
     { 
      XmlDocument doc = new XmlDocument(); 
      WebRequest req = WebRequest.Create("https://api.facebook.com/restserver.php?method=links.getStats&urls=http://localhost:5064/default.aspx,http://www.facebook.com"); 
      WebResponse resp = req.GetResponse(); 
      StreamReader reader = new StreamReader(resp.GetResponseStream()); 
      string xml = reader.ReadToEnd(); 
      xml = xml.Replace("<?xml version=\"1.0\" encoding=\"UTF-8\"?>", "").Replace("links_getStats_response xmlns=\"http://api.facebook.com/1.0/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://api.facebook.com/1.0/ http://api.facebook.com/1.0/facebook.xsd\" list=\"true\"", "links_getStats_response"); 
      doc.LoadXml(xml); 

      XmlNodeList xnList = doc.SelectNodes("links_getStats_response/link_stat"); 
      foreach (XmlNode xn in xnList) 
      { 
       string fullurls = xn["url"].InnerText; 
       string likes = xn["like_count"].InnerText; 
       string comment = xn["comment_count"].InnerText; 
       string normalisedurls = xn["normalized_url"].InnerText; 

      } 

     } 



public string WebRequests(string method, string url, string postData) 
{ 

HttpWebRequest webRequest = null; 
StreamWriter requestWriter = null; 
string responseData = ""; 

webRequest = System.Net.WebRequest.Create(url) as HttpWebRequest; 
webRequest.Method = method.ToString(); 
webRequest.ServicePoint.Expect100Continue = false; 
webRequest.UserAgent = HttpContext.Current.Request.UserAgent; 
webRequest.Timeout = 20000; 
if (method == "POST") 
{ 
webRequest.ContentType = "application/x-www-form-urlencoded"; 
//POST the data. 
requestWriter = new StreamWriter(webRequest.GetRequestStream()); 
try 
{ 
requestWriter.Write(postData); 
} 
catch 
{ 
throw; 
} 
finally 
{ 
requestWriter.Close(); 
requestWriter = null; 
} 
} 

responseData = WebResponseGet(webRequest); 
webRequest = null; 
return responseData; 
} 

public string WebResponseGet(HttpWebRequest webRequest) 
{ 
StreamReader responseReader = null; 
string responseData = ""; 

try 
{ 
responseReader = new StreamReader(webRequest.GetResponse().GetResponseStream()); 
responseData = responseReader.ReadToEnd(); 
} 
catch 
{ 
throw; 
} 
finally 
{ 
webRequest.GetResponse().GetResponseStream().Close(); 
responseReader.Close(); 
responseReader = null; 
} 

return responseData; 
} 



protected void Button2_Click(object sender, EventArgs e) 
{ 
    if (Session["code"] != null) 
    { 
     string urls = "https://graph.facebook.com/me/feed?" + Session["token"]; 
     var json = WebRequests("POST", urls, "message=" + HttpUtility.UrlEncode("" + TextBox1.Text)); 
    } 
} 





    } 
} 


AND for default.aspx 


<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml"> 
<head runat="server"> 
    <title></title> 
</head> 
<body> 
    <form id="form1" runat="server"> 
    <div> 
    <asp:HyperLink runat="server" Text="Log in with Facebook" id="fbLogin"/><br /><br /> 

     <asp:Label ID="LoginName1" runat="server" Text="" Font-Bold="true"></asp:Label> 
     <br /> 
     <br /> 
<asp:Button ID="Button1" runat="server" Text="Get Likes And Comments" onclick="Button1_Click" /> 
     <br /> 
     <asp:TextBox ID="TextBox1" runat="server" Width="407px" Text="Testing Api by c# code"></asp:TextBox> 
     <asp:Button ID="Button2" runat="server" Text="Post To me" 
      onclick="Button2_Click" /> 
    </div> 

    </form> 

</body> 
</html> 

希望幫助