public class SettingExceptionProvider { public static Dictionary<Type, ExceptionConfig> Container = new Dictionary<Type, ExceptionConfig>(); static SettingExceptionProvider() { InitContainer(); } //读取配置信息，初始化容器 private static void InitContainer() { var section = WebConfigurationManager.GetSection("settingException") as SettingExceptionSection; if(section == null) { return; } InitFromGroups(section.Exceptions.Groups); InitFromAddCollection(section.Exceptions.AddCollection); } private static void InitFromGroups(GroupCollection groups) { foreach (var group in groups.Cast<GroupElement>()) { ExceptionConfig config = new ExceptionConfig(); config.View = group.View; config.Handler = CreateHandler(group.Handler); foreach(var item in group.AddCollection.Cast<AddElement>()) { Exception ex = CreateException(item.Exception); config.Exception = ex; Container[ex.GetType()] = config; } } } private static void InitFromAddCollection(AddCollection collection) { foreach(var item in collection.Cast<AddElement>()) { ExceptionConfig config = new ExceptionConfig(); config.View = item.View; config.Handler = CreateHandler(item.Handler); config.Exception = CreateException(item.Exception); Container[config.Exception.GetType()] = config; } } //根据完全限定名创建IExceptionHandler对象 private static IExceptionHandler CreateHandler(string fullName) { if(string.IsNullOrEmpty(fullName)) { return null; } Type type = Type.GetType(fullName); return Activator.CreateInstance(type) as IExceptionHandler; } //根据完全限定名创建Exception对象 private static Exception CreateException(string fullName) { if(string.IsNullOrEmpty(fullName)) { return null; } Type type = Type.GetType(fullName); return Activator.CreateInstance(type) as Exception; } }
以下是各个配置节点的信息：
settingExceptions节点：
/// <summary> /// settingExceptions节点 /// </summary> public class SettingExceptionSection : ConfigurationSection { [ConfigurationProperty("exceptions",IsRequired=true)] public ExceptionsElement Exceptions { get { return (ExceptionsElement)base["exceptions"]; } } }
exceptions节点：
/// <summary> /// exceptions节点 /// </summary> public class ExceptionsElement : ConfigurationElement { private static readonly ConfigurationProperty _addProperty = new ConfigurationProperty("", typeof(AddCollection), null, ConfigurationPropertyOptions.IsDefaultCollection); [ConfigurationProperty("", IsDefaultCollection = true)] public AddCollection AddCollection { get { return (AddCollection)base[_addProperty]; } } [ConfigurationProperty("groups")] public GroupCollection Groups { get { return (GroupCollection)base["groups"]; } } }
Group节点集：
/// <summary> /// group节点集 /// </summary> [ConfigurationCollection(typeof(GroupElement),AddItemName="group")] public class GroupCollection : ConfigurationElementCollection { /*override*/ protected override ConfigurationElement CreateNewElement() { return new GroupElement(); } protected override object GetElementKey(ConfigurationElement element) { return element; } }
group节点：
/// <summary> /// group节点 /// </summary> public class GroupElement : ConfigurationElement { private static readonly ConfigurationProperty _addProperty = new ConfigurationProperty("", typeof(AddCollection), null, ConfigurationPropertyOptions.IsDefaultCollection); [ConfigurationProperty("view")] public string View { get { return base["view"].ToString(); } } [ConfigurationProperty("handler")] public string Handler { get { return base["handler"].ToString(); } } [ConfigurationProperty("", IsDefaultCollection = true)] public AddCollection AddCollection { get { return (AddCollection)base[_addProperty]; } } }
add节点集：
/// <summary> /// add节点集 /// </summary> public class AddCollection : ConfigurationElementCollection { /*override*/ protected override ConfigurationElement CreateNewElement() { return new AddElement(); } protected override object GetElementKey(ConfigurationElement element) { return element; } }
add节点：