如何在WCF数据服务中执行巨大的基于rest的url

本文关键字：巨大 url rest 执行 WCF 数据 服务 | 更新日期: 2023-09-27 17:50:38

我使用Wcf数据服务(V3)。从IOS应用程序，他们将通过URL发送签名。问题是有时用户输入长签名在这种情况下，它会给出一个错误，如"Url太长"。如何在WCF数据服务上解决此问题?

提前谢谢。

如何在WCF数据服务中执行巨大的基于rest的url

如果客户端要传递给服务的消息比较大，建议使用POST。

你可以在这里找到WCF数据服务V3的操作指南:http://blogs.msdn.com/b/odatateam/archive/2011/10/17/actions-in-wcf-data-services.aspx

下面是设置WCF DS服务与Action支持的快速演示:

public class Service : DataService<Context>, IServiceProvider 
{
    public static void InitializeService(DataServiceConfiguration config)
    {
        config.SetEntitySetAccessRule("*", EntitySetRights.All);
        config.SetServiceActionAccessRule("*", ServiceActionRights.Invoke);
        config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V3;
    }
    public object GetService(Type serviceType)
    {
        return typeof(IDataServiceActionProvider) == serviceType ? new ActionProvider() : null;
    }
}
public class ActionProvider : IDataServiceActionProvider, IDataServiceActionResolver
{
    private static List<ServiceAction> actions;
    static ActionProvider()
    {
        ServiceAction movieRateAction = new ServiceAction(
             "Action1", // name of the action 
             ResourceType.GetPrimitiveResourceType(typeof(string)), // no return type i.e. void 
             null, // no return type means we don’t need to know the ResourceSet so use null. 
             OperationParameterBindingKind.Never,
             new ServiceActionParameter[] { 
              new ServiceActionParameter("val", ResourceType.GetPrimitiveResourceType(typeof(string))) 
           }
            );
        movieRateAction.SetReadOnly();
        actions = new List<ServiceAction>() { movieRateAction };
    }
    public IEnumerable<ServiceAction> GetServiceActions(DataServiceOperationContext operationContext)
    {
        return actions;
    }
    public bool TryResolveServiceAction(DataServiceOperationContext operationContext, string serviceActionName,
                                        out ServiceAction serviceAction)
    {
        serviceAction = null;
        return false;
    }
    public IEnumerable<ServiceAction> GetServiceActionsByBindingParameterType(DataServiceOperationContext operationContext,
                                                               ResourceType bindingParameterType)
    {
        return Enumerable.Empty<ServiceAction>();
    }
    public IDataServiceInvokable CreateInvokable(DataServiceOperationContext operationContext, ServiceAction serviceAction,
                                                 object[] parameterTokens)
    {
        return new DataServiceInvokable(parameterTokens);
    }
    public bool AdvertiseServiceAction(DataServiceOperationContext operationContext, ServiceAction serviceAction, object resourceInstance, bool resourceInstanceInFeed, ref ODataAction actionToSerialize)
    {
        actionToSerialize = null;
        return false;
    }
    public bool TryResolveServiceAction(DataServiceOperationContext operationContext, ServiceActionResolverArgs resolverArgs, out ServiceAction serviceAction)
    {
        serviceAction = actions[0];
        return true;
    }
}
 public class DataServiceInvokable : IDataServiceInvokable
 {
     private readonly object[] parameters;
     private string result;
     public DataServiceInvokable(object[] parameters)
     {
         this.parameters = parameters;
     }
     public object GetResult()
     {
         return result;
     }
     public void Invoke()
     {
         result = parameters[0] as string;
     }
 }

然后你可以发送一个POST请求到http://example.org/service.svc/Action1

头:内容类型:Application/json

请求主体:{"val":"MessageToPostHere…"}

如果你使用的是。net 4.0或更高版本，你可以尝试一下你的网页。配置文件:

<system.web>
...
    <httpRuntime maxUrlLength="500" />
....
</system.web>
相关文章：