Question

我有一个简单的WCF服务方法：

[OperationContract]
public SetupGameResult SetupGame(long player1Id, long player2Id, long myPlayerId)
    {
        if(player1Id == 0 || player2Id == 0 || myPlayerId == 0)
        {
            throw new ArgumentException();
        }

        ... // other code
    }

我在Silverlight应用程序中只在一个地方调用此服务。这里：

        if(player1Id == 0 || player2Id == 0 || myPlayerId == 0)
        {
            throw new ArgumentException();
        }

        // Setup Game
        GameServiceClient gameService = new GameServiceClient();
        gameService.SetupGameCompleted += new EventHandler<SetupGameCompletedEventArgs>(gameService_SetupGameCompleted);
        gameService.SetupGameAsync(player1Id, player2Id, myPlayerId);

通常，SetupGame 永远不会使用myPlayerId = 0 调用。但是为了确保我在调用服务方法之前检查。

问题是服务方法被正确调用一次，在第二次调用时会抛出参数异常，因为myPlayerId = 0.。

这是奇怪的原因，如果它是0，我会在调用之前检查。

可能是什么问题？

修改
似乎序列化/反序列化确实存在问题。

但原因可能有什么？

编辑2：
在建筑期间我收到以下警告。这可能是问题吗？

Warning 12  Client proxy generation for service 'Car_Motion.Web.Services.GameService' failed: Generating metadata files...
Warning: Unable to load a service with configName 'Car_Motion.Web.Services.GameService'. To export a service provide both the assembly containing the service type and an executable with configuration for this service.
Details:Either none of the assemblies passed were executables with configuration files or none of the configuration files contained services with the config name 'Car_Motion.Web.Services.GameService'.
Warning: No metadata files were generated. No service contracts were exported.
To export a service, use the /serviceName option. To export data contracts, specify the /dataContractOnly option. This can sometimes occur in certain security contexts, such as when the assembly is loaded over a UNC network file share. If this is the case, try copying the assembly into a trusted environment and running it.

提前致谢

Answer 1

Ben，我认为您的服务引用存在一些问题，并且未正确生成代理类，因此long值可能会获得默认值0。请检查以下项目

确保您的WCF服务已编译
尝试删除并添加服务引用一次
尝试从VS命令行手动运行svcutil.exe。 svcutil有一个已知的错误，当你使用配置文件对服务程序集运行它时，它会以你看到的方式失败。解决方法是在运行svcutil之前注释掉该部分。

参数的序列化/反序列化 - WCF服务调用不起作用

1 个答案: