整了好几天都弄不了老大的HTTPHELPER类的返回状态值

langbin

我想判断一下读取网站的返回值比如网站不通的情况下提示网络不通
或者网站出现404之类的提示服务器正在维护当中。
但怎么弄也取不了返回状态值。

站长苏飞

[code=csharp]  if (result.StatusCode == System.Net.HttpStatusCode.OK)
            {
                //表示访问成功，具体的大家就参考HttpStatusCode类
            }[/code]

这个不是在教程里面有吗？你不能光下载类不看教程啊。
http://www.sufeinet.com/thread-2766-1-1.html

langbin

站长苏飞 发表于 2013-6-7 08:29
这个不是在教程里面有吗？你不能光下载类不看教程啊。
http://www.sufeinet.com/thread-2766-1-1.html

我试过用这样的了。但是不行。

站长苏飞

langbin 发表于 2013-6-7 23:30
我试过用这样的了。但是不行。

怎么可能会不行呢，网站的状态肯定都在这里包含着，不是不行，而是你没有能明白什么是网站状态吧，网站状态有上百种呢System.Net.HttpStatusCode这是网站状态枚举类，他总计有如下状态
[code=csharp]#region 程序集 System.dll, v4.0.30319
// C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\System.dll
#endregion

using System;

namespace System.Net
{
    // 摘要:
    //     包含为 HTTP 定义的状态代码的值。
    public enum HttpStatusCode
    {
        // 摘要:
        //     Equivalent to HTTP status 100.System.Net.HttpStatusCode.Continue indicates
        //     that the client can continue with its request.
        Continue = 100,
        //
        // 摘要:
        //     Equivalent to HTTP status 101.System.Net.HttpStatusCode.SwitchingProtocols
        //     indicates that the protocol version or protocol is being changed.
        SwitchingProtocols = 101,
        //
        // 摘要:
        //     Equivalent to HTTP status 200.System.Net.HttpStatusCode.OK indicates that
        //     the request succeeded and that the requested information is in the response.这是最常接收的状态代码。
        OK = 200,
        //
        // 摘要:
        //     Equivalent to HTTP status 201.System.Net.HttpStatusCode.Created indicates
        //     that the request resulted in a new resource created before the response was
        //     sent.
        Created = 201,
        //
        // 摘要:
        //     Equivalent to HTTP status 202.System.Net.HttpStatusCode.Accepted indicates
        //     that the request has been accepted for further processing.
        Accepted = 202,
        //
        // 摘要:
        //     Equivalent to HTTP status 203.System.Net.HttpStatusCode.NonAuthoritativeInformation
        //     indicates that the returned metainformation is from a cached copy instead
        //     of the origin server and therefore may be incorrect.
        NonAuthoritativeInformation = 203,
        //
        // 摘要:
        //     Equivalent to HTTP status 204.System.Net.HttpStatusCode.NoContent indicates
        //     that the request has been successfully processed and that the response is
        //     intentionally blank.
        NoContent = 204,
        //
        // 摘要:
        //     Equivalent to HTTP status 205.System.Net.HttpStatusCode.ResetContent indicates
        //     that the client should reset (not reload) the current resource.
        ResetContent = 205,
        //
        // 摘要:
        //     Equivalent to HTTP status 206.System.Net.HttpStatusCode.PartialContent indicates
        //     that the response is a partial response as requested by a GET request that
        //     includes a byte range.
        PartialContent = 206,
        //
        // 摘要:
        //     Equivalent to HTTP status 300.System.Net.HttpStatusCode.MultipleChoices indicates
        //     that the requested information has multiple representations.默认操作是将此状态视为重定向，并遵循与此响应关联的
        //     Location 头的内容。
        MultipleChoices = 300,
        //
        // 摘要:
        //     Equivalent to HTTP status 300.System.Net.HttpStatusCode.Ambiguous indicates
        //     that the requested information has multiple representations.默认操作是将此状态视为重定向，并遵循与此响应关联的
        //     Location 头的内容。
        Ambiguous = 300,
        //
        // 摘要:
        //     Equivalent to HTTP status 301.System.Net.HttpStatusCode.MovedPermanently
        //     indicates that the requested information has been moved to the URI specified
        //     in the Location header.接收到此状态时的默认操作为遵循与响应关联的 Location 头。
        MovedPermanently = 301,
        //
        // 摘要:
        //     Equivalent to HTTP status 301.System.Net.HttpStatusCode.Moved indicates that
        //     the requested information has been moved to the URI specified in the Location
        //     header.接收到此状态时的默认操作为遵循与响应关联的 Location 头。原始请求方法为 POST 时，重定向的请求将使用 GET 方法。
        Moved = 301,
        //
        // 摘要:
        //     Equivalent to HTTP status 302.System.Net.HttpStatusCode.Found indicates that
        //     the requested information is located at the URI specified in the Location
        //     header.接收到此状态时的默认操作为遵循与响应关联的 Location 头。原始请求方法为 POST 时，重定向的请求将使用 GET 方法。
        Found = 302,
        //
        // 摘要:
        //     Equivalent to HTTP status 302.System.Net.HttpStatusCode.Redirect indicates
        //     that the requested information is located at the URI specified in the Location
        //     header.接收到此状态时的默认操作为遵循与响应关联的 Location 头。原始请求方法为 POST 时，重定向的请求将使用 GET 方法。
        Redirect = 302,
        //
        // 摘要:
        //     Equivalent to HTTP status 303.System.Net.HttpStatusCode.SeeOther automatically
        //     redirects the client to the URI specified in the Location header as the result
        //     of a POST.用 GET 生成对 Location 头所指定的资源的请求。
        SeeOther = 303,
        //
        // 摘要:
        //     Equivalent to HTTP status 303.System.Net.HttpStatusCode.RedirectMethod automatically
        //     redirects the client to the URI specified in the Location header as the result
        //     of a POST.用 GET 生成对 Location 头所指定的资源的请求。
        RedirectMethod = 303,
        //
        // 摘要:
        //     Equivalent to HTTP status 304.System.Net.HttpStatusCode.NotModified indicates
        //     that the client's cached copy is up to date.未传输此资源的内容。
        NotModified = 304,
        //
        // 摘要:
        //     Equivalent to HTTP status 305.System.Net.HttpStatusCode.UseProxy indicates
        //     that the request should use the proxy server at the URI specified in the
        //     Location header.
        UseProxy = 305,
        //
        // 摘要:
        //     Equivalent to HTTP status 306.System.Net.HttpStatusCode.Unused is a proposed
        //     extension to the HTTP/1.1 specification that is not fully specified.
        Unused = 306,
        //
        // 摘要:
        //     Equivalent to HTTP status 307.System.Net.HttpStatusCode.TemporaryRedirect
        //     indicates that the request information is located at the URI specified in
        //     the Location header.接收到此状态时的默认操作为遵循与响应关联的 Location 头。原始请求方法为 POST 时，重定向的请求还将使用
        //     POST 方法。
        TemporaryRedirect = 307,
        //
        // 摘要:
        //     Equivalent to HTTP status 307.System.Net.HttpStatusCode.RedirectKeepVerb
        //     indicates that the request information is located at the URI specified in
        //     the Location header.接收到此状态时的默认操作为遵循与响应关联的 Location 头。原始请求方法为 POST 时，重定向的请求还将使用
        //     POST 方法。
        RedirectKeepVerb = 307,
        //
        // 摘要:
        //     Equivalent to HTTP status 400.System.Net.HttpStatusCode.BadRequest indicates
        //     that the request could not be understood by the server.System.Net.HttpStatusCode.BadRequest
        //     is sent when no other error is applicable, or if the exact error is unknown
        //     or does not have its own error code.
        BadRequest = 400,
        //
        // 摘要:
        //     Equivalent to HTTP status 401.System.Net.HttpStatusCode.Unauthorized indicates
        //     that the requested resource requires authentication.WWW-Authenticate 头包含如何执行身份验证的详细信息。
        Unauthorized = 401,
        //
        // 摘要:
        //     Equivalent to HTTP status 402.System.Net.HttpStatusCode.PaymentRequired is
        //     reserved for future use.
        PaymentRequired = 402,
        //
        // 摘要:
        //     Equivalent to HTTP status 403.System.Net.HttpStatusCode.Forbidden indicates
        //     that the server refuses to fulfill the request.
        Forbidden = 403,
        //
        // 摘要:
        //     Equivalent to HTTP status 404.System.Net.HttpStatusCode.NotFound indicates
        //     that the requested resource does not exist on the server.
        NotFound = 404,
        //
        // 摘要:
        //     Equivalent to HTTP status 405.System.Net.HttpStatusCode.MethodNotAllowed
        //     indicates that the request method (POST or GET) is not allowed on the requested
        //     resource.
        MethodNotAllowed = 405,
        //
        // 摘要:
        //     Equivalent to HTTP status 406.System.Net.HttpStatusCode.NotAcceptable indicates
        //     that the client has indicated with Accept headers that it will not accept
        //     any of the available representations of the resource.
        NotAcceptable = 406,
        //
        // 摘要:
        //     Equivalent to HTTP status 407.System.Net.HttpStatusCode.ProxyAuthenticationRequired
        //     indicates that the requested proxy requires authentication.Proxy-authenticate
        //     头包含如何执行身份验证的详细信息。
        ProxyAuthenticationRequired = 407,
        //
        // 摘要:
        //     Equivalent to HTTP status 408.System.Net.HttpStatusCode.RequestTimeout indicates
        //     that the client did not send a request within the time the server was expecting
        //     the request.
        RequestTimeout = 408,
        //
        // 摘要:
        //     Equivalent to HTTP status 409.System.Net.HttpStatusCode.Conflict indicates
        //     that the request could not be carried out because of a conflict on the server.
        Conflict = 409,
        //
        // 摘要:
        //     Equivalent to HTTP status 410.System.Net.HttpStatusCode.Gone indicates that
        //     the requested resource is no longer available.
        Gone = 410,
        //
        // 摘要:
        //     Equivalent to HTTP status 411.System.Net.HttpStatusCode.LengthRequired indicates
        //     that the required Content-length header is missing.
        LengthRequired = 411,
        //
        // 摘要:
        //     Equivalent to HTTP status 412.System.Net.HttpStatusCode.PreconditionFailed
        //     indicates that a condition set for this request failed, and the request cannot
        //     be carried out.条件是用条件请求标头（如 If-Match、If-None-Match 或 If-Unmodified-Since）设置的。
        PreconditionFailed = 412,
        //
        // 摘要:
        //     Equivalent to HTTP status 413.System.Net.HttpStatusCode.RequestEntityTooLarge
        //     indicates that the request is too large for the server to process.
        RequestEntityTooLarge = 413,
        //
        // 摘要:
        //     Equivalent to HTTP status 414.System.Net.HttpStatusCode.RequestUriTooLong
        //     indicates that the URI is too long.
        RequestUriTooLong = 414,
        //
        // 摘要:
        //     Equivalent to HTTP status 415.System.Net.HttpStatusCode.UnsupportedMediaType
        //     indicates that the request is an unsupported type.
        UnsupportedMediaType = 415,
        //
        // 摘要:
        //     Equivalent to HTTP status 416.System.Net.HttpStatusCode.RequestedRangeNotSatisfiable
        //     indicates that the range of data requested from the resource cannot be returned,
        //     either because the beginning of the range is before the beginning of the
        //     resource, or the end of the range is after the end of the resource.
        RequestedRangeNotSatisfiable = 416,
        //
        // 摘要:
        //     Equivalent to HTTP status 417.System.Net.HttpStatusCode.ExpectationFailed
        //     indicates that an expectation given in an Expect header could not be met
        //     by the server.
        ExpectationFailed = 417,
        //
        // 摘要:
        //     Equivalent to HTTP status 500.System.Net.HttpStatusCode.InternalServerError
        //     indicates that a generic error has occurred on the server.
        InternalServerError = 500,
        //
        // 摘要:
        //     Equivalent to HTTP status 501.System.Net.HttpStatusCode.NotImplemented indicates
        //     that the server does not support the requested function.
        NotImplemented = 501,
        //
        // 摘要:
        //     Equivalent to HTTP status 502.System.Net.HttpStatusCode.BadGateway indicates
        //     that an intermediate proxy server received a bad response from another proxy
        //     or the origin server.
        BadGateway = 502,
        //
        // 摘要:
        //     Equivalent to HTTP status 503.System.Net.HttpStatusCode.ServiceUnavailable
        //     indicates that the server is temporarily unavailable, usually due to high
        //     load or maintenance.
        ServiceUnavailable = 503,
        //
        // 摘要:
        //     Equivalent to HTTP status 504.System.Net.HttpStatusCode.GatewayTimeout indicates
        //     that an intermediate proxy server timed out while waiting for a response
        //     from another proxy or the origin server.
        GatewayTimeout = 504,
        //
        // 摘要:
        //     Equivalent to HTTP status 505.System.Net.HttpStatusCode.HttpVersionNotSupported
        //     indicates that the requested HTTP version is not supported by the server.
        HttpVersionNotSupported = 505,
    }
}
[/code]
总计在C#中会统计出这些，基本上所有的状态都在里面，
我感觉你应该不是说的这个状态吧，而应该是说的网站内容是否正常吧，
这个不好分，因为这些状态各有各的意思，我建议你去取网页上一个关键字，如果发现返回的Html中没有就是正常的，
OK状态就是200状态，表示网站是通的，而301 302都是跳转，也是正常的状态，你的网站只要能打开就是Ok，说明是正常的，你说的正常应该是能不能正常显示数据吧。
这样的话是没有办法判断的，因为谁也不知道网站上的数据到底是什么，就算是什么也没有，就输出一个1也是正常的OK。Httphelper只能判断状态，不能替你判断网页的内容是否正确。

站长苏飞

http://www.sufeinet.com/thread-3589-1-1.html

Eagle

已经解决了，又算路过！

baichong6730165

强烈支持楼主ing……