C# 如何自定义WCF错误行为
我正在创建一个WCF服务来提供REST-fulWebHTTP服务。这就是我想要的: 这将返回JSON/XML格式的结果 这将返回一条自定义错误消息,而不是标准的“未找到端点”。错误C# 如何自定义WCF错误行为,c#,wcf,C#,Wcf,我正在创建一个WCF服务来提供REST-fulWebHTTP服务。这就是我想要的: 这将返回JSON/XML格式的结果 这将返回一条自定义错误消息,而不是标准的“未找到端点”。错误 我阅读了关于IErrorHandler接口和扩展WebHttpBehavior类的内容。但不起作用。最简单的方法是定义处理“未找到”案例的操作-使用“*”的UriTemplate(如果没有其他模板与传入请求匹配,它将匹配)。下面的代码显示了一个示例 public class Post_0424d917_89cd_
我阅读了关于IErrorHandler接口和扩展WebHttpBehavior类的内容。但不起作用。最简单的方法是定义处理“未找到”案例的操作-使用“*”的UriTemplate(如果没有其他模板与传入请求匹配,它将匹配)。下面的代码显示了一个示例
public class Post_0424d917_89cd_43c8_be70_5d4c6934b48c
{
[ServiceContract]
public interface ITest
{
[WebGet(UriTemplate = "/Echo?text={text}")]
string EchoGet(string text);
[WebInvoke(UriTemplate = "/Echo")]
string EchoPost(string text);
[WebGet(UriTemplate = "*")]
Stream ErrorForGet();
[WebInvoke(UriTemplate = "*")]
Stream ErrorForPost();
}
public class Service : ITest
{
public string EchoGet(string text) { return text; }
public string EchoPost(string text) { return text; }
public Stream ErrorForPost() { return this.ErrorForGet(); }
public Stream ErrorForGet()
{
WebOperationContext.Current.OutgoingResponse.StatusCode = HttpStatusCode.NotFound;
WebOperationContext.Current.OutgoingResponse.ContentType = "text/html";
string result = @"<html>
<head>
<title>Resource not found</title>
</head>
<body>
<h1>This resource cannot be found</h1>
</body>
</html>";
return new MemoryStream(Encoding.UTF8.GetBytes(result));
}
}
static void SendRequest(string uri, string method, string contentType, string body)
{
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(uri);
req.Method = method;
if (!String.IsNullOrEmpty(contentType))
{
req.ContentType = contentType;
}
if (body != null)
{
byte[] bodyBytes = Encoding.UTF8.GetBytes(body);
req.GetRequestStream().Write(bodyBytes, 0, bodyBytes.Length);
req.GetRequestStream().Close();
}
HttpWebResponse resp;
try
{
resp = (HttpWebResponse)req.GetResponse();
}
catch (WebException e)
{
resp = (HttpWebResponse)e.Response;
}
Console.WriteLine("HTTP/{0} {1} {2}", resp.ProtocolVersion, (int)resp.StatusCode, resp.StatusDescription);
foreach (string headerName in resp.Headers.AllKeys)
{
Console.WriteLine("{0}: {1}", headerName, resp.Headers[headerName]);
}
Console.WriteLine();
Console.WriteLine(new StreamReader(resp.GetResponseStream()).ReadToEnd());
Console.WriteLine();
Console.WriteLine(" *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* ");
Console.WriteLine();
}
public static void Test()
{
string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
ServiceHost host = new ServiceHost(typeof(Service), new Uri(baseAddress));
host.AddServiceEndpoint(typeof(ITest), new WebHttpBinding(), "").Behaviors.Add(new WebHttpBehavior());
host.Open();
Console.WriteLine("Host opened");
SendRequest(baseAddress + "/Echo?text=hello", "GET", null, null);
SendRequest(baseAddress + "/Echo", "POST", "application/json", "\"world\"");
SendRequest(baseAddress + "/NotFound", "GET", null, null);
SendRequest(baseAddress + "/NotFound", "POST", "text/xml", "<body/>");
Console.Write("Press ENTER to close the host");
Console.ReadLine();
host.Close();
}
}
public class Post_0424d917_89cd_43c8_be70_5d4c6934b48c
{
[服务合同]
公共接口测试
{
[WebGet(UriTemplate=“/Echo?text={text}”)]
字符串EchoGet(字符串文本);
[WebInvoke(UriTemplate=“/Echo”)]
字符串EchoPost(字符串文本);
[WebGet(UriTemplate=“*”)]
流错误忘记();
[WebInvoke(UriTemplate=“*”)]
Stream ErrorForPost();
}
公共类服务:ITest
{
公共字符串EchoGet(字符串文本){返回文本;}
公共字符串EchoPost(字符串文本){返回文本;}
公共流ErrorForPost(){返回this.ErrorForForPost();}
公共流错误忘记()
{
WebOperationContext.Current.OutgoingResponse.StatusCode=HttpStatusCode.NotFound;
WebOperationContext.Current.OutgoingResponse.ContentType=“text/html”;
字符串结果=@“
找不到资源
找不到此资源
";
返回新的MemoryStream(Encoding.UTF8.GetBytes(result));
}
}
静态void SendRequest(字符串uri、字符串方法、字符串内容类型、字符串正文)
{
HttpWebRequest req=(HttpWebRequest)HttpWebRequest.Create(uri);
要求方法=方法;
如果(!String.IsNullOrEmpty(contentType))
{
req.ContentType=ContentType;
}
if(body!=null)
{
byte[]bodyBytes=Encoding.UTF8.GetBytes(body);
req.GetRequestStream().Write(bodyBytes,0,bodyBytes.Length);
req.GetRequestStream().Close();
}
HttpWebResponse resp;
尝试
{
resp=(HttpWebResponse)req.GetResponse();
}
捕获(WebE例外)
{
resp=(HttpWebResponse)e.Response;
}
WriteLine(“HTTP/{0}{1}{2}”,resp.ProtocolVersion,(int)resp.StatusCode,resp.StatusDescription);
foreach(分别在header.allkey中的字符串headerName)
{
WriteLine(“{0}:{1}”,headerName,resp.header[headerName]);
}
Console.WriteLine();
Console.WriteLine(新的StreamReader(resp.GetResponseStream()).ReadToEnd());
Console.WriteLine();
Console.WriteLine(“*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*”;
Console.WriteLine();
}
公共静态无效测试()
{
string baseAddress=“http://“+Environment.MachineName+”:8000/服务”;
ServiceHost主机=新ServiceHost(类型(服务),新Uri(基地址));
host.AddServiceEndpoint(typeof(ITest),new-WebHttpBinding(),“”)。Behaviors.Add(new-WebHttpBehavior());
host.Open();
Console.WriteLine(“主机已打开”);
SendRequest(baseAddress+“/Echo?text=hello”、“GET”、null、null);
SendRequest(baseAddress+“/Echo”、“POST”、“application/json”、“world\”);
SendRequest(baseAddress+“/NotFound”、“GET”、null、null);
SendRequest(baseAddress+“/NotFound”、“POST”、“text/xml”、““”);
控制台。写入(“按ENTER键关闭主机”);
Console.ReadLine();
host.Close();
}
}