在WCF服务中,如果我们遇到了程序中的字符串过长的话,应该如何正确处理呢?在这里我们将会为大家详细介绍一下WCF字符串的相关应用技巧,以帮助大家解决在实际应用中出现的一些特定问题。#t#
编写基于WCF服务的程序时,向WCF服务端发送一长串的HTML源码,结果客户端收到提示如下:
WCF字符串格式化程序尝试对消息反序列化时引发异常: 对操作“AddArticle”的请求消息正文进行反序列化时出现错误。读取 XML 数据时,超出最大字符串内容长度配额 (8192)。通过更改在创建 XML 读取器时所使用的 XmlDictionaryReaderQuotas 对象的 MaxStringContentLength 属性,可增加此配额。 第 64 行,位置为 79。
主要是maxStringContentLength和maxReceivedMessageSize的设置会影响到消息的发送和接收,于是全部改为2MB大小,即2097152。
客户端app.config修改:
- < bindings>
- < basicHttpBinding>
- < binding name="BasicHttpBinding_ShareService" closeTimeout="00:01:00"
- openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
- allowCookies="false" bypassProxyOnLocal="false"
hostNameComparisonMode="StrongWildcard"- maxBufferSize="65536" maxBufferPoolSize="524288"
maxReceivedMessageSize="2097152"- messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
- useDefaultWebProxy="true">
- < !-- Reset maxStringContentLength for deserialize -->
- < readerQuotas maxDepth="32" maxStringContentLength="2097152"
maxArrayLength="16384"- maxBytesPerRead="4096" maxNameTableCharCount="16384" />
- < security mode="None">
- < transport clientCredentialType="None" proxyCredentialType="None"
- realm="" />
- < message clientCredentialType="UserName" algorithmSuite="Default" />
- < /security>
- < /binding>
- < /basicHttpBinding>
- < /bindings>
服务端web.config修改:
- < system.serviceModel>
- < !-- add for the message size -->
- < bindings>
- < basicHttpBinding>
- < binding name="NewBinding2MB" maxReceivedMessageSize="2097152">
- < readerQuotas maxStringContentLength="2097152" />
- < /binding>
- < /basicHttpBinding>
- < /bindings>
- < !-- add for the message size -->
- < behaviors>
- < serviceBehaviors>
- < behavior name="Web.WCF.ShareServiceBehavior">
- < serviceMetadata httpGetEnabled="true"/>
- < serviceDebug includeExceptionDetailInFaults="false"/>
- < /behavior>
- < /serviceBehaviors>
- < /behaviors>
- < serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
- < services>
- < service behaviorConfiguration="Web.WCF.ShareServiceBehavior"
name="Web.WCF.ShareService">- < endpoint address="" binding="basicHttpBinding"
bindingConfiguration="NewBinding2MB" contract="Web.WCF.ShareService"/>- < endpoint address="mex" binding="mexHttpBinding"
contract="IMetadataExchange"/>- < /service>
- < /services>
- < /system.serviceModel>
以上就是针对WCF字符串过程的解决方法。