近日在使用wcf的restfull架構服務時遭遇到了提交大數據的問題。web
大數據包含兩種情形:json
1)單條數據量過大。restful
2)提交或獲取的數據條數過多。架構
在測試時發現,默認設置下當單條JSON數據大於30K時服務便不予受理。app
提交或獲取數據大小的限制來自兩方面,即IIS服務和WCF服務。ide
這兩方面的限制均可以經過配置WCF服務端的Web.config相關配置節點的方式解決。測試
廢話不說了,直接上解決方案。大數據
<?xml version="1.0" encoding="utf-8"?> <configuration> <connectionStrings> <add name="BaseConnectionString" connectionString="server=.\SQLEXPRESS;database=TLPBizF;uid=*******;pwd==*******;" providerName="System.Data.SqlClient" /> <add name="BizDBConnectionString" connectionString="server=.\SQLEXPRESS;database=TLPBizDB;uid==******;pwd==*******;" providerName="System.Data.SqlClient" /> </connectionStrings> <appSettings> <add key="TimeOutMinutes" value="20" /> <add key="BizDBName" value="TLPBizDB"/> <add key="aspnet:MaxJsonDeserializerMembers" value="1500000000" /> </appSettings> <system.web> <compilation debug="true" targetFramework="4.0" /> </system.web> <system.webServer> <modules runAllManagedModulesForAllRequests="true" /> <handlers accessPolicy="Read, Execute, Script" /> <staticContent> <mimeMap fileExtension=".svc" mimeType="application/octet-stream" /> </staticContent> </system.webServer> </configuration>
<?xml version="1.0" encoding="utf-8"?> <configuration> <connectionStrings> <add name="BaseConnectionString" connectionString="server=.\SQLEXPRESS;database=TLPBizF;uid=*******;pwd==*******;" providerName="System.Data.SqlClient" /> <add name="BizDBConnectionString" connectionString="server=.\SQLEXPRESS;database=TLPBizDB;uid==*******;;pwd==*******;" providerName="System.Data.SqlClient" /> </connectionStrings> <appSettings> <add key="TimeOutMinutes" value="20" /> <add key="BizDBName" value="TLPBizDB"/> <add key="aspnet:MaxJsonDeserializerMembers" value="1500000000" /> </appSettings> <system.web> <compilation debug="true" targetFramework="4.0" /> <httpRuntime maxRequestLength="2147483644"/> </system.web> <system.web.extensions> <scripting> <webServices> <jsonSerialization maxJsonLength="2147483644"/> </webServices> </scripting> </system.web.extensions> <system.serviceModel> <behaviors> <serviceBehaviors> <behavior> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> <dataContractSerializer maxItemsInObjectGraph="2147483647"/> </behavior> <behavior name="BigDataServiceBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="false"/> <dataContractSerializer maxItemsInObjectGraph="2147483647"/> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> <standardEndpoints> <webHttpEndpoint> <!-- 服務節點配置 --> <standardEndpoint name="BigDataServiceEndPoint" transferMode="Buffered" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" defaultOutgoingResponseFormat="Json" helpEnabled="true" automaticFormatSelectionEnabled="true"> <readerQuotas maxDepth="64" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647" maxBytesPerRead="2147483647" maxArrayLength="2147483647" ></readerQuotas> </standardEndpoint> </webHttpEndpoint> </standardEndpoints> <services> <!-- 服務對應配置 --> <service name="SFiresoft.TLP.Services.BizCoreService" behaviorConfiguration="BigDataServiceBehavior"> <endpoint endpointConfiguration="BigDataServiceEndPoint" kind="webHttpEndpoint" contract="SFiresoft.TLP.Services.IBizCoreService" > </endpoint> </service> </services> </system.serviceModel> <system.webServer> <modules runAllManagedModulesForAllRequests="true" /> <handlers accessPolicy="Read, Execute, Script" /> <staticContent> <mimeMap fileExtension=".svc" mimeType="application/octet-stream" /> </staticContent> </system.webServer> </configuration>
對比:ui
1)system.web節點: spa
<httpRuntime maxRequestLength="2147483644"/>
應對IIS服務請求數據大小限制的設置。
2)system.serviceModel節點下「webHttpEndpoint」的配置:
<standardEndpoint name="MyPoint" transferMode="Buffered" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" defaultOutgoingResponseFormat="Json" helpEnabled="false" automaticFormatSelectionEnabled="true"> <readerQuotas maxDepth="64" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647" maxBytesPerRead="2147483647" maxArrayLength="2147483647" ></readerQuotas> </standardEndpoint>
此處:
如服務地址:http://localhost:9900/MapService.svc
查看服務方式:http://localhost:9900/MapService.svc/help
以下圖:
3)system.serviceModel節點下「service」的配置:
<services> <service name="SFiresoft.TLP.Services.BizCoreService" behaviorConfiguration="Wcf4BigData.Web.BigDataServiceBehavior"> <endpoint endpointConfiguration="MyPoint" kind="webHttpEndpoint" contract="SFiresoft.TLP.Services.IBizCoreService"> </endpoint> </service> </services>
其餘的很少說了自悟。
着重參考:《已配置的Web.config》
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