远程服务器返回错误：(400) Bad Request

Question

我收到以下错误：

"远程服务器返回错误： (400) 错误请求”

“请求超时”

有时在使用网络服务连接到主机时。如果返回的 XML 为 5 kb，则它工作正常，但如果大小为 450kb 或更大，则显示错误。

以下是我的代码以及驻留在客户端系统中的配置文件。我们无权访问服务器的设置。

 Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim fileName As String = Server.MapPath("capitaljobs2.xml")

        Dim client = New CapitalJobsService.DataServiceClient("WSHttpBinding_IDataService", "http://xyz/webservice.svc")


        Dim userAccount = New UserAccount()

        'replace here 
        Dim jobAdList = client.GetProviderJobs(userAccount)

        '## Needed only to create XML files - do not ucomment - will overwrite files 
        'if (jobAdList != null) 
        ' SerialiseJobAds(fileName, jobAdList); 

        '## Read new ads from Xml file 
        Dim capitalJobsList = DeserialiseJobdAds(fileName)
        UpdateProviderJobsFromXml(client, userAccount, capitalJobsList)              
        client.Close()
    End Sub

 Private Shared Function DeserialiseJobdAds(ByVal fileName As String) As CapitalJobsService.CapitalJobsList
        Dim capitalJobsList As CapitalJobsService.CapitalJobsList
        ' Deserialize the data and read it from the instance 
        If File.Exists(fileName) Then
            Dim fs = New FileStream(fileName, FileMode.Open)
            Dim reader = XmlDictionaryReader.CreateTextReader(fs, New XmlDictionaryReaderQuotas())
            Dim ser2 = New DataContractSerializer(GetType(CapitalJobsList))
            capitalJobsList = DirectCast(ser2.ReadObject(reader, True), CapitalJobsList)
            reader.Close()
            fs.Close()
            Return capitalJobsList
        End If
        Return Nothing
    End Function

还有配置文件

 <system.web>
 <httpRuntime maxRequestLength="524288" />
  </system.web>
    <system.serviceModel>
        <bindings>
            <wsHttpBinding>
        <binding name="WSHttpBinding_IDataService" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false">
          <readerQuotas maxDepth="2000000" maxStringContentLength="2000000" maxArrayLength="2000000" maxBytesPerRead="2000000" maxNameTableCharCount="2000000" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />
                    <security mode="None">
                        <transport clientCredentialType="Windows" proxyCredentialType="None" realm=""/>
                        <message clientCredentialType="Windows" negotiateServiceCredential="true" establishSecurityContext="true"/>
                    </security>
                </binding>
            </wsHttpBinding>
        </bindings>
        <client>
            <endpoint address="http://xyz/DataService.svc" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IDataService" contract="CapitalJobsService.IDataService" name="WSHttpBinding_IDataService">
                                <identity>
                    <dns value="localhost"/>
                </identity>
            </endpoint>
        </client>
    </system.serviceModel>

我正在使用“Fiddler”来跟踪它正在读取和终止文件的活动

* FIDDLER：RawDisplay 在 16384 个字符处被截断。右键单击到 禁用截断。 *

但在配置中没有提到数字 16348。

你能确定错误是在客户端还是服务器端？以上设置在客户端。

提前致谢。

Answer 1

也许你可以像这个线程中的建议一样增加调用的超时时间 Setting Timeout Value For .NET Web Service