无法张贴的WebRequest如果内容长度> 7KB使用C＃ [英] Could not post on WebRequest if the Content Length > 7kb using C#

问题描述

我想发布一个JSON给我们的Web服务。我的问题是，当我的request.ContentLength超过7KB。我会在request.GetResponse得到一个网络异常500（）。但如果我的request.ContentLength低于7KB，我的职位是成功发送。

错误消息：

 远程服务器返回错误：（ 500内部服务器错误。 
  

源代码：

 公共静态字符串JsonPost（字符串URL，字符串的方法，串POSTDATA）
 {
 URI地址=新的URI（URL +方法）; 
 HttpWebRequest的要求= WebRequest.Create（地址）HttpWebRequest的; 
 request.Method =POST; 
 request.ContentType =应用/ JSON; 
的byte [] byteData = UTF8Encoding.UTF8.GetBytes（POSTDATA）; 
 request.ContentLength = byteData.Length; 
使用（流postStream = request.GetRequestStream（））
 {
 postStream.Write（byteData，0，byteData.Length）;使用
} 
试
 {
（HttpWebResponse响应= request.GetResponse（）作为HttpWebResponse）
 {
 StreamReader的读者=新的StreamReader（response.GetResponseStream （））; 
串JsonResponse = reader.ReadToEnd（）; 
返回JsonResponse; 
} 
} 
赶上（引发WebException前）
 {
字符串消息=（（System.Net.HttpWebResponse）（ex.Response））状态说明。 
如果（message.Contains（忙））
返回消息; 
，否则
抛出新的异常（消息）; 
} 
} 
  

Web.config文件：

 <？XML版本=1.0>？; 
 
<结构> 
<的appSettings> 
<添加键=网页：版本值=1.0.0.0/> 
<添加键=ClientValidationEnabledVALUE =真/> 
<添加键=UnobtrusiveJavaScriptEnabledVALUE =真/> 
< /的appSettings> 
 
<&的System.Web GT; 
将;的httpRuntime executionTimeout =180的maxRequestLength =1048576useFullyQualifiedRedirectUrl =假minFreeThreads =8
 minLocalRequestFreeThreads =4appRequestQueueLimit =100enableVersionHeader =真/> 
 
<编译调试=真targetFramework =4.0> 
<&集会GT; 
<添加组件=System.Web.Abstractions，版本= 4.0.0.0，文化=中性公钥= 31BF3856AD364E35/> 
<添加组件=System.Web.Helpers，版本= 1.0.0.0，文化=中性公钥= 31BF3856AD364E35/> 
<添加组件=System.Web.Routing，版本= 4.0.0.0，文化=中性公钥= 31BF3856AD364E35/> 
<添加组件=System.Web.Mvc，版本= 3.0.0.0，文化=中性公钥= 31BF3856AD364E35/> 
<添加组件=System.Web.WebPages，版本= 1.0.0.0，文化=中性公钥= 31BF3856AD364E35/> 
< /组件> 
< /编译> 
 
<身份验证模式=表格> 
<形式loginUrl =〜/首页/无Cookie =自动检测超时=2880/> 
< /认证> 
 
<会员> 
<供应商> 
<清/> 
<添加名称=AspNetSqlMembershipProviderTYPE =System.Web.Security.SqlMembershipProvider的connectionStringName =ApplicationServices
 enablePasswordRetrieval =假enablePasswordReset设置=真requiresQuestionAndAnswer =假requiresUniqueEmail =假
 maxInvalidPasswordAttempts =5minRequiredPasswordLength =6minRequiredNonalphanumericCharacters =0passwordAttemptWindow =10
的applicationName =//> 
< /供应商> 
< /会员> 
 
<型材> 
<供应商> 
<清/> 
<添加名称=AspNetSqlProfileProviderTYPE =System.Web.Profile.SqlProfileProvider的connectionStringName =ApplicationServices的applicationName =//> 
< /供应商> 
< / profile文件> 
 
<启用roleManager =false的> 
<供应商> 
<清/> 
<添加名称=AspNetSqlRoleProviderTYPE =System.Web.Security.SqlRoleProvider的connectionStringName =ApplicationServices的applicationName =//> 
<添加名称=AspNetWindowsTokenRoleProviderTYPE =System.Web.Security.WindowsTokenRoleProvider的applicationName =//> 
< /供应商> 
< / roleManager> 
 
<网页> 
<&命名空间GT; 
<添加命名空间=System.Web.Helpers/> 
<添加命名空间=System.Web.Mvc/> 
<添加命名空间=System.Web.Mvc.Ajax/> 
<添加命名空间=System.Web.Mvc.Html/> 
<添加命名空间=System.Web.Routing/> 
<添加命名空间=System.Web.WebPages/> 
< /命名空间> 
< /页> 
< /system.web> 
 
< system.webServer> 
<安全> 
<的requestFiltering> 
< requestLimits maxAllowedContentLength =1073741824/> 
< /的requestFiltering> 
< /安全> 
<验证validateIntegratedModeConfiguration =FALSE/> 
<模块runAllManagedModulesForAllRequests =真/> 
< /system.webServer> 
 
<运行> 
< assemblyBinding的xmlns =瓮：架构 - 微软COM：asm.v1> 
< dependentAssembly> 
< assemblyIdentity名称=System.Web.Mvc公钥=31bf3856ad364e35/> 
< bindingRedirect oldVersion =1.0.0.0-2.0.0.0NEWVERSION =3.0.0.0/> 
< / dependentAssembly> 
< / assemblyBinding> 
< /运行> 
< /结构> 
  

异常日志：

 （System.Net.HttpWebResponse）（ex.Response）{System.Net.HttpWebResponse} System.Net.HttpWebResponse 
基{System.Net.HttpWebResponse} System.Net.WebResponse {系统。 Net.HttpWebResponse} 
字符集ISO-8859-1的字符串
 ContentEncoding，串
 CONTENTLENGTH 1047长
的ContentTypetext / html的串
饼干{系统.Net.CookieCollection} System.Net.CookieCollection 
接头{
访问控制允许来源：* 
的Content-Length：1047 
的Cache-Control：私人
含量类型：text / html的
日期：星期二，2012年9月18日22时33分36秒GMT 
的Set-Cookie：ASP.NET_SessionId = belurseo1i0ureppkspetw1a;路径= /;仅Http 
服务器：Microsoft-IIS / 7.0 
的X ASPNET-版本：4.0.30319 
的X技术，通过：ASP.NET 
} System.Net.WebHeaderCollection 
 IsMutuallyAuthenticated假布尔
上次更改{2012年9月19日上午6时34分07秒} System.DateTime的
法POST字符串
 ProtocolVersion {1.1} System.Version 
 ResponseUri {HTTP：//localhost/service.svc/Update}的System.Uri 
服务器微软-IIS / 7.0的字符串
的StatusCode InternalServerError System.Net.HttpStatusCode 
状态说明遇到服务器错误处理请求，请查看服务器日志以了解更多详细信息。字符串
 SupportsHeaders真布尔
  

解决方案

试试这个：

 ％WINDIR％\system32\inetsrv\appcmd设置配置-section：的requestFiltering -requestLimits.maxAllowedContentLength 1000000 
  

如果你只是想将其设置为你的应用程序：

 ％WINDIR％\system32\inetsrv\appcmd设置配置默认Web站点/<您的应用程序与GT; -section：的requestFiltering -requestLimits.maxAllowedContentLength 1000000 
  

您可以找到更多的限制选项的这里。

希望这有助于

I am trying to post a Json to our web service. My problem is that when my request.ContentLength exceeds 7kb. I will get a web exception 500 at request.GetResponse(). But if my request.ContentLength is below 7kb, my post is successfully sent.

Error Message:

 The remote server returned an error: (500) Internal Server Error.

Source code:

public static string JsonPost(string url, string method, string postData)
{
    Uri address = new Uri(url + method);
    HttpWebRequest request = WebRequest.Create(address) as HttpWebRequest;
    request.Method = "POST";
    request.ContentType = "application/json";
    byte[] byteData = UTF8Encoding.UTF8.GetBytes(postData);
    request.ContentLength = byteData.Length;
    using (Stream postStream = request.GetRequestStream())
    {
        postStream.Write(byteData, 0, byteData.Length);
    }
    try
    {
        using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
        {
            StreamReader reader = new StreamReader(response.GetResponseStream());
            string JsonResponse = reader.ReadToEnd();
            return JsonResponse;
        }
    }
    catch (WebException ex)
    {
        string message = ((System.Net.HttpWebResponse)(ex.Response)).StatusDescription;
        if (message.Contains("busy"))
            return message;
        else
            throw new Exception(message);
    }
}

Web.config:

        <?xml version="1.0"?>

<configuration>
  <appSettings>
    <add key="webpages:Version" value="1.0.0.0"/>
    <add key="ClientValidationEnabled" value="true"/>
    <add key="UnobtrusiveJavaScriptEnabled" value="true"/>
  </appSettings>

  <system.web>
    <httpRuntime executionTimeout="180" maxRequestLength="1048576" useFullyQualifiedRedirectUrl="false" minFreeThreads="8"
    minLocalRequestFreeThreads="4" appRequestQueueLimit="100" enableVersionHeader="true" />

    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Helpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web.WebPages, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      </assemblies>
    </compilation>

    <authentication mode="Forms">
      <forms loginUrl="~/Home/" cookieless="AutoDetect" timeout="2880" />
    </authentication>

    <membership>
      <providers>
        <clear/>
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices"
             enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
             maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
             applicationName="/" />
      </providers>
    </membership>

    <profile>
      <providers>
        <clear/>
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" />
      </providers>
    </profile>

    <roleManager enabled="false">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
      </providers>
    </roleManager>

    <pages>
      <namespaces>
        <add namespace="System.Web.Helpers" />
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
        <add namespace="System.Web.WebPages"/>
      </namespaces>
    </pages>
  </system.web>

  <system.webServer>
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="1073741824" />
      </requestFiltering>
    </security>
    <validation validateIntegratedModeConfiguration="false"/>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>

  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

Exception Logs:

    (System.Net.HttpWebResponse)(ex.Response)   {System.Net.HttpWebResponse}    System.Net.HttpWebResponse
    base    {System.Net.HttpWebResponse}    System.Net.WebResponse {System.Net.HttpWebResponse}
        CharacterSet    "ISO-8859-1"    string
        ContentEncoding ""  string
        ContentLength   1047    long
        ContentType "text/html" string
        Cookies {System.Net.CookieCollection}   System.Net.CookieCollection
        Headers {
            Access-Control-Allow-Origin: *
            Content-Length: 1047
            Cache-Control: private
            Content-Type: text/html
            Date: Tue, 18 Sep 2012 22:33:36 GMT
            Set-Cookie: ASP.NET_SessionId=belurseo1i0ureppkspetw1a; path=/; HttpOnly
            Server: Microsoft-IIS/7.0
            X-AspNet-Version: 4.0.30319
            X-Powered-By: ASP.NET
        }   System.Net.WebHeaderCollection
        IsMutuallyAuthenticated false   bool
        LastModified    {9/19/2012 6:34:07 AM}  System.DateTime
        Method  "POST"  string
        ProtocolVersion {1.1}   System.Version
        ResponseUri {http://localhost/service.svc/Update}   System.Uri
        Server  "Microsoft-IIS/7.0" string
        StatusCode  InternalServerError System.Net.HttpStatusCode
        StatusDescription   "The server encountered an error processing the request. Please see the server logs for more details."  string
        SupportsHeaders true    bool

解决方案

Try this:

%windir%\system32\inetsrv\appcmd set config -section:requestFiltering -requestLimits.maxAllowedContentLength:1000000

or if you only want to set it for your app:

%windir%\system32\inetsrv\appcmd set config "Default Web Site/<your app>" -section:requestFiltering -requestLimits.maxAllowedContentLength:1000000

You can find more limit options here.

Hope this helps

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