【MVC】获取项目中所有的控制器-试图

在C#中，实现动态获取类和方法主要通过反射来实现，要引用System.Reflection。

方法一：

public ActionResult GetControllerAndAction()
{
    //创建控制器类型列表
    List<Type> controllerTypes = new List<Type>();
    
    //加载程序集
    var assembly = Assembly.Load("MPMS");

    //获取程序集下所有的类，通过Linq筛选继承IController类的所有类型
    controllerTypes.AddRange(assembly.GetTypes().Where(type => typeof(IController).IsAssignableFrom(type) && type.Name != "ErrorController"));

    //创建动态字符串，拼接json数据    注：现在json类型传递数据比较流行，比xml简洁
    StringBuilder jsonBuilder = new StringBuilder();    
    jsonBuilder.Append("[");

    //遍历控制器类
    foreach (var controller in controllerTypes)
    {
        jsonBuilder.Append("{\"controllerName\":\"");
        jsonBuilder.Append(controller.Name);
        jsonBuilder.Append("\",\"controllerDesc\":\"");
        jsonBuilder.Append((controller.GetCustomAttribute(typeof(DescriptionAttribute)) as DescriptionAttribute) == null ? "" : (controller.GetCustomAttribute(typeof(DescriptionAttribute)) as DescriptionAttribute).Description);
        
        //获取对控制器的描述Description
        jsonBuilder.Append("\",\"action\":[");

        //获取控制器下所有返回类型为ActionResult的方法，对MVC的权限控制只要限制所以的前后台交互请求就行，统一为ActionResult
        var actions = controller.GetMethods().Where(method => method.ReturnType.Name == "ActionResult");    
        foreach (var action in actions)
        {
            jsonBuilder.Append("{\"actionName\":\"");
            jsonBuilder.Append(action.Name);
            jsonBuilder.Append("\",\"actionDesc\":\"");
            jsonBuilder.Append((action.GetCustomAttribute(typeof(DescriptionAttribute)) as DescriptionAttribute) == null ? "" : (action.GetCustomAttribute(typeof(DescriptionAttribute)) as DescriptionAttribute).Description);    //获取对Action的描述
            jsonBuilder.Append("\"},");
        }
        jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
        jsonBuilder.Append("]},");
    }
    jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
    jsonBuilder.Append("]");
    return Content(jsonBuilder.ToString());
}

方法二：

/// <summary>
/// 通过反射得到所有可用的action
/// </summary>
/// <returns></returns>
public static List<string> GetALLPageByReflection()
{
    List<string> actions = new List<string>();
    var asm = System.Reflection.Assembly.GetExecutingAssembly();
    System.Collections.Generic.List<Type> typeList = new List<Type>();
    var types = asm.GetTypes();
    foreach (Type type in types)
    {
        string s = type.FullName.ToLower();
        if (type.Name.StartsWith("AccountCont")) continue;
        if (s.StartsWith("mvctmm.controllers.") && s.EndsWith("controller"))
            typeList.Add(type);
    }
    typeList.Sort(delegate (Type type1, Type type2) { return type1.FullName.CompareTo(type2.FullName); });
    foreach (Type type in typeList)
    {
        //Response.Write(type.Name.Replace("Controller","") + "<br/>\n");
        System.Reflection.MemberInfo[] members = type.FindMembers(System.Reflection.MemberTypes.Method,
        System.Reflection.BindingFlags.Public |
        System.Reflection.BindingFlags.Static |
        System.Reflection.BindingFlags.NonPublic |        //【位屏蔽】
        System.Reflection.BindingFlags.Instance |
        System.Reflection.BindingFlags.DeclaredOnly,
        Type.FilterName, "*");
        foreach (var m in members)
        {
            if (m.DeclaringType.Attributes.HasFlag(System.Reflection.TypeAttributes.Public) != true)
                continue;
            string controller = type.Name.Replace("Controller", "");
            string action = m.Name;
            string url = "/" + controller + "/" + action;
            actions.Add(url);
        }
    }
    return actions;
}