c# – XmlSerializer不使用sgen创建的XmlSerializers.dll
在我的Visual Studio 2010项目中,我使用以下Post-Build事件命令行来使用sgen来创建XmlSerializers.dll.
发布后事件: "$(ProgramFiles)Microsoft SDKsWindowsv7.0ABinNETFX 4.0 Toolssgen.exe" /a:"$(TargetPath)" /c:/keyfile:"c:myprojectmykey.snk" /f 我的项目名称很强,因此请使用相同的键来强名“XmlSerializers.dll”. VS在输出文件夹中创建XmlSerializers.dll. 但是,我注意到使用ProcessMonitor,.NET仍然在运行时调用CSC.exe.我来到这个post,用户有类似的问题,并通过使用XmlSerializer(Type)构造函数解决. 我在我的代码中使用了相同的技术,但它仍然调用csc.exe: var fs = new FileStream(SettingsFilePath,FileMode.Open); try { var serializer = new XmlSerializer(typeof(AppSettings)); settings = (AppSettings)serializer.Deserialize(fs); } finally { fs.Close(); } 我需要使用预编译的XML序列化的原因,因为性能和我有时看到Windows关闭时csc.exe错误.我的应用程序在表单关闭时保存数据,在关闭期间,它失败,因为Windows在关闭序列期间不允许新进程启动.我已经看到了通过预编译XML序列化来解决这个问题的建议. 有关为什么XmlSerializer不使用sgen创建的XmlSerializers.dll的任何建议? 谢谢. 解决方法
Possiby问题是不同的目标平台:默认情况下sgen使用’Any CPU'(MSIL),如果包含要反序列化或序列化的类型的程序集是为x86 o x64编译的,它将不会加载.XmlSerializers.dll
更一般地说,我看一下加载序列化程序集的.NET代码 – 这里有一些代码可以重现与单元测试相同的行为: /// <summary>Generates an identifier for the assembly of a specified type</summary> /// <remarks>Code copied from the .NET serialization classes - to emulate the same bahavior</remarks> /// <param name="type">The type</param> /// <returns>String identifying the type's assembly</returns> static string GenerateAssemblyId(Type type) { Module[] modules = type.Assembly.GetModules(); ArrayList list = new ArrayList(); for (int i = 0; i < modules.Length; i++) { list.Add(modules[i].ModuleVersionId.ToString()); } list.Sort(); StringBuilder sb = new StringBuilder(); for (int i = 0; i < list.Count; i++) { sb.Append(list[i].ToString()); sb.Append(","); } return sb.ToString(); } // GenerateAssemblyId /// <summary>Verifies that the serialization assembly for the specified type can be loaded</summary> /// <remarks>Code copied from the .NET serialization classes - to emulate the same behavior and tests</remarks> /// <param name="type">The type</param> static void AssertCanLoadXmlSerializers(Type type) { if (type == null) throw new ArgumentNullException("type"); Assembly serializerAssembly = null; // Create the name of the XML serilizers assembly from the type's one AssemblyName name = type.Assembly.GetName(true); name.Name = name.Name + ".XmlSerializers"; name.CodeBase = null; name.CultureInfo = CultureInfo.InvariantCulture; try { serializerAssembly = Assembly.Load(name); } catch (Exception e) { Assert.Fail("Unable to load XML serialization assembly for type '{0}': {1}",type.FullName,e.Message); } object[] attrs = serializerAssembly.GetCustomAttributes(typeof(XmlSerializerVersionAttribute),false); if (attrs == null || attrs.Length == 0) { Assert.Fail( "Unable to use XML serialization assembly '{1}' for type '{0}': it does not contain XmlSerializerVersionAttribute",serializerAssembly.FullName ); } if (attrs.Length > 1) { Assert.Fail( "Unable to use XML serialization assembly '{1}' for type '{0}': it contains multiple XmlSerializerVersionAttribute",serializerAssembly.FullName ); } XmlSerializerVersionAttribute assemblyInfo = (XmlSerializerVersionAttribute)attrs[0]; string assemblyId = GenerateAssemblyId(type); if (assemblyInfo.ParentAssemblyId != assemblyId) { Assert.Fail( "Unable to use XML serialization assembly '{1}' for type '{0}': it does not match assembly id '{2}'",serializerAssembly.FullName,assemblyId ); } } // AssertCanLoadXmlSerializers 只需调用AssertCanLoadXmlSerializers()传递类型,而不是需要序列化/反序列化.如果序列化程序集没有加载,您可以从错误消息中很好地了解原因. 我将它添加到我们的单元测试中,以便我可以合理地确定序列化程序集正常. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |