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千行代码实现代理式AOP+属性的自动装配 V2.0 1、修复属性的植入逻辑 2、优化初始化结果的IL指令

千行代码实现代理式AOP+属性的自动装配

Emit实现从URL或者表单中创建对象。 可通过前缀实现创建多对象。 性能高效，实用性高。

C#解析CSV格式文件示例源码，内有详细注释哦

private void context_BeginRequest(object sender, EventArgs e) { HttpApplication app = sender as HttpApplication; if (app == null) return; string currentUrl = app.Context.Request.RawUrl; if (currentUrl.EndsWith(URL_SUFFIX, StringComparison.OrdinalIgnoreCase) == false) //后缀不符合的跳过 return; int p = currentUrl.IndexOf(URL_FLAG, StringComparison.OrdinalIgnoreCase); //无参的也跳过 if (p == -1) return; currentUrl = currentUrl.Substring(0, currentUrl.Length - URL_SUFFIX.Length); //去除后缀 string url = string.Format("{0}.aspx", currentUrl.Substring(0, p)); string query = FormmatUrlToQuery(currentUrl.Substring(p + URL_FLAG.Length)); app.Context.RewritePath(url, string.Empty, query); }

纯手工打造Emit实现AOP private static void OverrideMethods(TypeBuilder tb, MethodInfo method) { if (!method.IsPublic|| !method.IsVirtual || IsObjectMethod(method)) return; Type[] paramTypes = GetParameterTypes(method); MethodAttributes attr = MethodAttributes.Public | MethodAttributes.Family | MethodAttributes.HideBySig | MethodAttributes.Virtual; MethodBuilder mb = tb.DefineMethod(method.Name, attr, method.ReturnType, paramTypes); LocalBuilder result = null; ILGenerator il = mb.GetILGenerator(); bool is_void = method.ReturnType != typeof(void); if (is_void == false) result = il.DeclareLocal(method.ReturnType); object[] attrs = method.GetCustomAttributes(typeof(AspectAttribute), false); if (attrs != null) { //初始化所有当前方法用到的参数object[] CreateLocalParameterArr(il, paramTypes); //初始化AspectContext Type ctxType = typeof(AspectContext); ConstructorInfo info = ctxType.GetConstructor(Type.EmptyTypes); var ctx = il.DeclareLocal(ctxType); il.Emit(OpCodes.Newobj, info); il.Emit(OpCodes.Stloc, ctx); //给AspectContext的参数值属性ParameterArgs赋值 var propMethod = ctxType.GetMethod("set_ParameterArgs"); il.Emit(OpCodes.Ldloc, ctx); il.Emit(OpCodes.Ldloc_0); il.Emit(OpCodes.Call, propMethod); int m = attrs.Length; LocalBuilder[] lbs = new LocalBuilder[m]; MethodInfo[] endInvokeMethods = new MethodInfo[m]; //初始化标记的横切对象，并调用横切对象的BeforeInvoke方法 for (int i = 0; i < m; i++) { var tmpType = attrs[i].GetType(); var aspect = il.DeclareLocal(tmpType); ConstructorInfo tmpInfo = tmpType.GetCon