将数据表发送到WCF服务时发生序列化错误
本文关键字:序列化 服务 错误 WCF 数据表 | 更新日期: 2023-09-27 18:14:46
序列化消息Method1的正文时出错:"生成XML文档时出错。">
当我试图将数据表作为参数传递给WCF方法时,我遇到了这个错误,我已经在WCF服务中使用了这种类型的方法(即DataTable
作为参数(,这很好。
然而,在这种情况下,我认为原因可能是DataTable
的大小,但不确定。
已经尝试将maxReceivedMessageSize
、maxBufferSize
和maxStringContentLength
增加到5242880,也就是5MB(我认为这已经足够了(,但运气不佳。
发现了许多相关的文章,但没有人指出这个特定的问题,因此发布了。
请引导。
Update:
我的DataTable
还包含一些XML内容,这可能是问题所在,因为这是以XML格式序列化的。
我也遇到了同样的问题,但后来我意识到我忘记了命名数据表,只是检查一下你是否也遗漏了它…
DataTable dt = new DataTable();
...
dt.TableName = "Table1";
现在将该表作为参数传递,希望它能帮助
尝试在App.config
文件中添加behavior
配置(并在服务和端点中引用它(:
-
在服务器上:
<behaviors> <serviceBehaviors> <behavior name="MyServiceBehavior"> <dataContractSerializer maxItemsInObjectGraph="2147483647"/> </behavior> </serviceBehaviors> </behaviors>
-
在客户端:
<behaviors> <endpointBehaviors> <behavior name="MyClientBehavior"> <dataContractSerializer maxItemsInObjectGraph="2147483647"/> </behavior> </endpointBehaviors> </behaviors>
如果不起作用,请尝试设置绑定的最大值:
<bindings>
<netTcpBinding>
<binding name="MyBindingConf"
maxReceivedMessageSize="2147483647"
maxBufferSize="2147483647"
maxBufferPoolSize="2147483647"
sendTimeout="00:30:00">
<readerQuotas maxDepth="32"
maxStringContentLength="2147483647"
maxArrayLength="2147483647"
maxBytesPerRead="4096"
maxNameTableCharCount="16384" />
<security mode="None" />
</binding>
</netTcpBinding>
</bindings>
这里有一个关于如何增加SharePoint中托管的自定义WCF web服务的消息长度的好例子:
using System;
using System.Diagnostics;
using System.ServiceModel;
using System.ServiceModel.Channels;
using Microsoft.SharePoint.Client.Services;
namespace MyNamespace
{
public class MyFactory : MultipleBaseAddressBasicHttpBindingServiceHostFactory
{
protected override ServiceHost CreateServiceHost(Type serviceType,
Uri[] baseAddresses)
{
ServiceHost host = new MultipleBaseAddressBasicHttpBindingServiceHost(
serviceType, baseAddresses);
if (host != null)
{
host.Opening += new EventHandler(OnHost_Opening);
}
return host;
}
private void OnHost_Opening(object sender, EventArgs e)
{
Debug.Assert(sender != null);
ServiceHost host = sender as ServiceHost;
Debug.Assert(host != null);
// Configure the binding values
if (host.Description != null && host.Description.Endpoints != null)
{
foreach (var endPoint in host.Description.Endpoints)
{
if (endPoint != null && endPoint.Binding != null)
{
BasicHttpBinding basicBinding = endPoint.Binding
as BasicHttpBinding;
if (basicBinding != null)
{
ConfigureBasicHttpBinding(basicBinding);
}
}
}
}
}
private static void ConfigureBasicHttpBinding(BasicHttpBinding basicBinding)
{
Debug.Assert(basicBinding != null);
basicBinding.MaxReceivedMessageSize = Int32.MaxValue;
basicBinding.ReaderQuotas.MaxArrayLength = Int32.MaxValue;
basicBinding.ReaderQuotas.MaxBytesPerRead = Int32.MaxValue;
basicBinding.ReaderQuotas.MaxStringContentLength = Int32.MaxValue;
}
}
}
As you can see I’m setting maximum length of the incoming messages.
Now we need to modify our service svc file to use our custom Factory Configuration:
<%@ ServiceHost Language="C#" Debug="true"
Service="MyNamespace.MyService, $SharePoint.Project.AssemblyFullName$"
CodeBehind="MyService.svc.cs"
Factory="MyNamespace.MyFactory, $SharePoint.Project.AssemblyFullName$"%>
示例