消费WCF休息4从ASP。净 [英] Consuming WCF Rest 4 From ASP . NET
问题描述
我是一个完整的ASP .NET新手。我写了一组使用WCF 4休息入门套件Web服务。我把一切从一个Flash应用程序内，但我想写一个快速和肮脏的管理面板供自己使用有没有必要写在Flash中。
我想，这会更快得到这个和ASP中运行。所以，问题是考虑这样一个WCF功能：
[WebInvoke（UriTemplate =/登录/方法=POST）]
公共用户登录信息（用户用户）
{
// code在这里
//要么抛出WebFaultException或会话ID返回用户登录
我怎么会消耗这从ASP净页面使用用户名，密码，提交盒，它要么显示错误401的等或成功（returneduser.sessionid）。
谢谢！
请注意：
我知道如何在C＃中通过HTTP调用REST服务。这真的是有好办法，在ASP来，由于这个问题，或者它只是使格式如：
＆LT; ASP：内容ID =内容2ContentPlaceHolderID =日程地址搜索Maincontent=服务器＆GT;
＆LT;形式的行动=WebForm2.aspx.cs＆GT;
＆LT; ASP：文本框的id =电子邮件=服务器/＆GT;
＆LT; ASP：文本框的id =密码=服务器/＆GT;
＆LT; ASP：按钮的ID =Button1的的OnClick =OnButtonClick=服务器文本=登录/＆GT;
＆LT; /表及GT;
＆LT; ASP：标签ID =labelResult=服务器/＆GT;
＆LT; / ASP：内容＆GT;
然后在单击code背后做这样的事情：
保护无效OnButtonClick（对象发件人，EventArgs的发送）
{
HttpWebRequest的REQ = WebRequest.Create（HTTP：//本地主机：35810 /用户/登录/）作为HttpWebRequest的; 字符串userString = UsefulStuff.Serialization.SerializationUtil。
SerializeDataContractToString（typeof运算（用户），新用户（）{电子邮件=新的电子邮件（textboxUsername.text）
密码=新密码（textboxPassword.text）}）; 字符串strResponse = GetHttpPostResponse（REQ，userString）; 用户recievedUser = UsefulStuff.Serialization.SerializationUtil.DeserializeDataContractString（
typeof运算（用户），strResponse）的用户; labelResult.Text = recievedUser.SessionId;
}
公共静态字符串GetHttpPostResponse（HttpWebRequest的HttpWebRequest的，字符串serializedPayload）
{
httpWebRequest.Method =POST;
httpWebRequest.ContentType =文/ XML;
httpWebRequest.ContentLength = serializedPayload.Length; StreamWriter的streamOut =新的StreamWriter（httpWebRequest.GetRequestStream（），Encoding.ASCII）;
streamOut.Write（serializedPayload）;
streamOut.Close（）; StreamReader的streamIn =新的StreamReader（httpWebRequest.GetResponse（）GetResponseStream（））; 字符串strResponse = streamIn.ReadToEnd（）;
streamIn.Close（）; 返回strResponse;
}
基本方法来调用REST服务是HttpWebRequest的
序列化到XML //用户对象
数据的XElement =新的XElement（用户，
新的XElement（用户名，用户名）
新的XElement（密码，密码）
）;MemoryStream的dataSream =新的MemoryStream（）;
data.Save（数据流）;HttpWebRequest的要求=（HttpWebRequest的）WebRequest.Create（YourServiceUrl）;
request.Method =POST;
request.ContentType =application / xml进行;
//你需要知道的长度，它有你访问请求流前设置
request.ContentLength = dataStream.Length;使用（流requestStream = request.GetRequestStream（））
{
dataStream.CopyTo（requestStream）;
requestStream.Close（）;
}HttpWebResponse响应= request.GetResponse（）;
如果（response.Status ==的HTTPStatus code.Unauthorized）
{
...
}
其他
{
...
}
response.Close（）;
I am a complete ASP .NET newbie. I've written a set of web services using the WCF 4 Rest Starter Kit. I call everything from within a Flash application but I want to write a quick and dirty admin panel for myself to use which has no need to be written in Flash.
I figure it will be faster to get this up and running in ASP. So the question is consider a WCF function like this:
[WebInvoke(UriTemplate = "/Login/", Method = "POST")]
public User Login(User user)
{
// Code here
// Either throw a WebFaultException or return the logged in user with a session id
How would I consume this from an ASP .Net page with a username, password, submit box and it either displays errors 401's etc or success (returneduser.sessionid).
Thanks!
Note: I am aware of how to call a Rest service over Http in C#. It's really a question of is there a "nice way" to due this in ASP or is it just make a form like:
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<form action="WebForm2.aspx.cs" >
<asp:textbox id="Email" runat="server"/>
<asp:textbox id="Password" runat="server"/>
<asp:Button id="Button1" OnClick="OnButtonClick" runat="server" Text="Login"/>
</form>
<asp:Label ID="labelResult" runat="server" />
</asp:Content>
Then on click in the code behind do something like this:
protected void OnButtonClick(object sender, EventArgs e)
{
HttpWebRequest req = WebRequest.Create("http://localhost:35810/Users/Login/") as HttpWebRequest;
String userString = UsefulStuff.Serialization.SerializationUtil.
SerializeDataContractToString(typeof(User), new User() { Email = new Email(textboxUsername.text),
Password = new Password(textboxPassword.text) });
String strResponse = GetHttpPostResponse(req, userString);
User recievedUser = UsefulStuff.Serialization.SerializationUtil.DeserializeDataContractString(
typeof(User), strResponse) as User;
labelResult.Text = recievedUser.SessionId;
}
public static String GetHttpPostResponse(HttpWebRequest httpWebRequest, String serializedPayload)
{
httpWebRequest.Method = "POST";
httpWebRequest.ContentType = "text/xml";
httpWebRequest.ContentLength = serializedPayload.Length;
StreamWriter streamOut = new StreamWriter(httpWebRequest.GetRequestStream(), Encoding.ASCII);
streamOut.Write(serializedPayload);
streamOut.Close();
StreamReader streamIn = new StreamReader(httpWebRequest.GetResponse().GetResponseStream());
string strResponse = streamIn.ReadToEnd();
streamIn.Close();
return strResponse;
}
Basic approach to call REST service is by HttpWebRequest
// User object serialized to XML
XElement data = new XElement("User",
new XElement("UserName", UserName),
new XElement("Password", Password)
);
MemoryStream dataSream = new MemoryStream();
data.Save(dataStream);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(YourServiceUrl);
request.Method = "POST";
request.ContentType = "application/xml";
// You need to know length and it has to be set before you access request stream
request.ContentLength = dataStream.Length;
using (Stream requestStream = request.GetRequestStream())
{
dataStream.CopyTo(requestStream);
requestStream.Close();
}
HttpWebResponse response = request.GetResponse();
if (response.Status == HttpStatusCode.Unauthorized)
{
...
}
else
{
...
}
response.Close();
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