用XML配置菜单的一种思路,附一些不太准确的测试代码

    /// <summary>
    /// Configs
    /// added by zbw911
    /// </summary>
    [XmlRoot("menulist")]
    public class MenuList
    {
        [XmlElement(ElementName = "group", Type = typeof(Group))]
        public Group[] groups;
    }

    /// <summary>
    /// 每个菜单的单元组
    /// </summary>
    public class Group
    {
        [XmlAttribute(AttributeName = "title")]
        public string title;

        [XmlArray(ElementName = "node")]
        [XmlArrayItem(ElementName = "node")]
        public Node[] Nodes;

    }


    /// <summary>
    /// 每个菜单的结点,每个结点下面还有可能会有菜单
    /// </summary>

    public class Node
    {
        [XmlElement(ElementName = "node")]
        public Node[] Nodes;

        [XmlAttribute("href")]
        public string href { get; set; }
        [XmlAttribute("target")]
        public string target { get; set; }
        [XmlAttribute("rel")]
        public string rel { get; set; }
        [XmlAttribute("name")]
        public string name { get; set; }
        [XmlAttribute(AttributeName = "title")]
        public string title { get; set; }
        [XmlAttribute(AttributeName = "url")]
        public string url { get; set; }
    }

上面定义的菜单的个结构,菜单由多个group组成,每个group 包含多个 node, node 是自包含，这样实现了无限级联菜单，

其实  group 也是可以 用node 来代替的，

但是，之所谓增加一个 group 无非也是为了使层次稍微清晰一点点。

下面是与之相关的一些测试代码，

    public class test
    {
        public MenuList t(out string all)
        {
            string applicationBaseDirectory = null;
            //try
            //{
            applicationBaseDirectory = AppDomain.CurrentDomain.BaseDirectory;
            //}
            //catch (Exception ex)
            //{
            //    //LogLog.Warn(declaringType, "Exception getting ApplicationBaseDirectory. ConfigFile property path [" + m_configFile + "] will be treated as an absolute path.", ex);
            //}

            //if (applicationBaseDirectory != null)
            //{
            // Just the base dir + the config file
            string fullPath2ConfigFile = HttpContext.Current.Server.MapPath("~/App_Data/Memu.xml");// Path.Combine(applicationBaseDirectory, "");
            //}
            //else
            //{
            //    fullPath2ConfigFile = m_configFile;
            //}

            var mySerializer = new XmlSerializer(typeof(MenuList));
            // To read the file, create a FileStream.
            var myFileStream = File.ReadAllBytes(fullPath2ConfigFile);

            // Call the Deserialize method and cast to the object type.
            var _Configuration = (MenuList)mySerializer.Deserialize(new MemoryStream(myFileStream));



            var xxx = new MenuList
                          {
                              groups = new[]
                                           {
                                               new Group
                                           {
                                               Nodes = new []{  new Node
                                                               {
                                                                   title = "tit",
                                                                   url = "u",
                                                                    Nodes = new[]
                                                                                {
                                                                                     new Node
                                                                                         {
                                                                                              href = "href",
                                                                                               name = "name"
                                                                                         },
                                                                                          new Node
                                                                                         {
                                                                                              href = "href",
                                                                                               name = "name"
                                                                                         }
                                                                                }
                                                                     
                                                               }
                                                               , new Node
                                                                                         {
                                                                                              href = "href",
                                                                                               name = "name"
                                                                                         },
                                                                                          new Node
                                                                                         {
                                                                                              href = "href",
                                                                                               name = "name"
                                                                                         }
                                               },
                                               title = "groptitle",
                                                
                                                                                
                                           },
                                           new Group
                                           {
                                               Nodes = new []{  new Node
                                                               {
                                                                   title = "tit",
                                                                   url = "u"
                                                               ,Nodes = new []{
                                                                    new Node
                                                                        {
                                                                             href = "",
                                                                             name = "name",
                                                                              rel = "aaa"
                                                                               , Nodes = new []
                                                                                             {
                                                                                                  new Node
                                                                                                      {
                                                                                                           href = "href",
                                                                                                            Nodes = new Node[]
                                                                                                                        {
                                                                                                                             new Node
                                                                                                                                 {
                                                                                                                                      href ="aaaaa"
                                                                                                                                 }
                                                                                                                        }
                                                                                                      }
                                                                                             }

                                                                        }
                                                               }                   
                                                               }
                                                
                                                },
                                               title = "groptitle"
                                           },
                                           }
                          };

            var stream = new MemoryStream();
            //stream.Seek(0, SeekOrigin.Begin);
            mySerializer.Serialize(stream, xxx);
            //StreamReader sr = new StreamReader(stream);
            //string all = sr.ReadToEnd();

            //stream.ToArray();

            all = System.Text.Encoding.Default.GetString(stream.ToArray());


            return _Configuration;



        }
    }

这样就可以从 一个 xml文件将之序列化一个 对象，然后再通过这个对象进行菜单的生成操作，

下面是大致的XML文件格式，

  <?xml version="1.0" ?>
- <menulist xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
- <group title="groptitle">
- <node>
- <Node title="tit" url="u">
  <node href="href" name="name" />
  <node href="href" name="name" />
  </Node>
  <Node href="href" name="name" />
  <Node href="href" name="name" />
  </node>
  </group>
- <group title="groptitle">
- <node>
- <Node title="tit" url="u">
- <node href="" rel="aaa" name="name">
- <node href="href">
  <node href="aaaaa" />
  </node>
  </node>
  </Node>
  </node>
  </group>
  </menulist>

最后说一句，实际上，菜单的生成不必要如此复杂，实际上我为的是将权限与菜单的对应放在一起，不去程序中写

if( 有什么权限）

    ｛显示某个菜单｝

这样的形式，才使用这样的方案。

实际上，生成菜单与权限对应还有其它方案，如 在 数据库中， 但这个实际上与这个方案类似。

不选择数据库，是因为，菜单的变化真不会有想像中如此那样多的变化，何改再去做一些CURD的方法呢，用最简单的方法来解决这个问题吧。