Question

我在服务上做了所有正确的设置，但是当我尝试将大量JSON数据输出到我的WCF REST服务时，仍然得到相同的愚蠢的400 Bad Request。下面是我的服务Web.config。我已经挣扎了3个星期，但没有找到答案。这是响应中的异常细节：

“反序列化出错了 BuildStepResource类型的对象。该最大字符串内容长度配额（8192）在阅读时已超出 XML数据。这个配额可能会增加通过更改MaxStringContentLength 物业使用的XmlDictionaryReaderQuotas对象在创建XML阅读器时。“

<system.serviceModel>
        <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
        <bindings>
            <webHttpBinding>
                <binding name="nonSSLBinding" maxReceivedMessageSize="4194304" receiveTimeout="01:00:00" sendTimeout="01:00:00" >
                    <security mode="None">
                        <transport clientCredentialType="Ntlm"/>
                    </security>
                    <readerQuotas maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxDepth="2147483647" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647"/>
                </binding>
                <binding name="sslBinding" maxReceivedMessageSize="4194304" receiveTimeout="01:00:00" sendTimeout="01:00:00" >
                    <security mode="Transport">
                        <transport clientCredentialType="Basic"/>
                    </security>
                    <readerQuotas maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxDepth="2147483647" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647"/>
                </binding>
            </webHttpBinding>
        </bindings>
        <services>
            <service behaviorConfiguration="webBehavior" name="serviceEndpoints">
                <endpoint address="" binding="webHttpBinding" contract="ISWCRestService" bindingConfiguration="nonSSLBinding" behaviorConfiguration="customBehavior"/>
                <endpoint address="" binding="webHttpBinding" contract="ISWCRestService" bindingConfiguration="sslBinding" behaviorConfiguration="customBehavior"/>
                <endpoint address="" binding="webHttpBinding" contract="IXmlEndpoint" bindingConfiguration="nonSSLBinding" behaviorConfiguration="customBehavior"/>
                <endpoint address="" binding="webHttpBinding" contract="IXmlEndpoint" bindingConfiguration="sslBinding" behaviorConfiguration="customBehavior"/>
                <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
            </service>
        </services>
        <behaviors>
            <serviceBehaviors>
                <behavior name="webBehavior">
                    <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
                    <serviceDebug includeExceptionDetailInFaults="true"/>
                    <dataContractSerializer maxItemsInObjectGraph="2147483646" />
                </behavior>
            </serviceBehaviors>
            <endpointBehaviors>
                <behavior name="customBehavior">
                    <webHttp automaticFormatSelectionEnabled="false" helpEnabled="true"/>
                    <dataContractSerializer maxItemsInObjectGraph="2147483646" />
                </behavior>
            </endpointBehaviors>
        </behaviors>
    </system.serviceModel>

Answer 1

错误消息是指在读取时超出配额，这使我相信您需要增加客户端端的MaxStringContentLength属性，而不是在您的网络上的.config。

Answer 2

我遇到了与WCF客户端类似的问题。您必须在客户端和服务器上将MaxItemsInObjectGraph配置为更大。我不知道如何在JSON中这样做。

Answer 3

客户端配置 -

<binding name="yourBinding"  maxReceivedMessageSize="2147483647">
          <readerQuotas
            maxDepth="2147483647"
            maxStringContentLength="2147483647"
            maxArrayLength="2147483647"
            maxBytesPerRead="2147483647"
            maxNameTableCharCount="2147483647" />
</binding>

Answer 4

在你的web.config中试试这个：

    <system.web>
        <compilation debug="true" targetFramework="4.0" />
        <httpRuntime maxRequestLength="2147483647"/>
    </system.web>

将大型JSON数据发送到WCF ReST服务时获取400错误请求

4 个答案: