ASP.NET MVC创建XML文件并实现元素增删改

如果创建如下的XML：

  
    darren
  

创建XML文件

在HomeController中，在根目录下创建new.xml文件：

        public ActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public ActionResult AddXml()
        {
            string path = Server.MapPath("~/new.xml");
            XDocument doc = new XDocument(
                    new XDeclaration("1.0","utf-8","yes"),
                    new XElement("Students",new XElement("Student",
                            new XAttribute("Id","1"),
                            new XElement("Name","darren")
                        ))
                );
            doc.Save(path);
            return Json(new {msg = true}, JsonRequestBehavior.AllowGet);
        }

在Index.cshtml中通过异步请求：

@model IEnumerable

@{
    ViewBag.Title = "Index";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

Index



@section scripts
{
    
}

显示XML文件元素

修改HomeController中的Index方法为：

        public ActionResult Index()
        {
            string path = Server.MapPath("~/new.xml");
            List result = new List();

            var nodes = ReadXML(path).Descendants("Student");

            foreach (var node in nodes)
            {
                Student student = new Student();
                student.Id = Convert.ToInt32(node.Attribute("Id").Value);
                foreach (var ele in node.Elements())
                {
                    student.Name = ele.Value;
                }
                result.Add(student);
            }

            return View(result);
        }

        private XDocument ReadXML(string path)
        {
            XDocument xDoc = new XDocument();
            xDoc = XDocument.Load(path);
            return xDoc;
        }

修改Home/Index.cshtml为：

@model IEnumerable

@{
    ViewBag.Title = "Index";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

Index




    @foreach (var item in Model)
    {
        
    }

    

        
编号
        
姓名
    

            
@item.Id
            
@item.Name
            
@Html.ActionLink("修改","Update","Home",new {id= item.Id},null)
            
@Html.ActionLink("删除","Delete","Home", new {id = item.Id},null)
        



@Html.ActionLink("创建","Create","Home")

@section scripts
{
    
}

添加元素到XML文件中

HomeController中：

        public ActionResult Create()
        {
            return View();
        }

        [HttpPost]
        public ActionResult Create(Student student)
        {
            string path = Server.MapPath("~/new.xml");
            XDocument xd = XDocument.Load(path);

            XElement newStudent = new XElement("Student",
                new XAttribute("Id", student.Id),
                new XElement("Name",student.Name));

            xd.Root.Add(newStudent);
            xd.Save(path);
            return RedirectToAction("Index");
        }

Home/Create.csthml中：

@model MvcApplication1.Models.Student

@{
    ViewBag.Title = "Create";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

Create

@using (Html.BeginForm("Create", "Home", FormMethod.Post, new {id = "addForm"}))
{
    @Html.LabelFor(m => m.Id)
    @Html.EditorFor(m => m.Id)

    

    @Html.LabelFor(m => m.Name)
    @Html.EditorFor(m => m.Name)

    

    
}

修改XML文件中的元素

HomeController中：

        public ActionResult Update(string id)
        {
            string path = Server.MapPath("~/new.xml");
            XElement xe = XElement.Load(path);
            var studentXe = xe.Elements("Student").Where(e => e.Attribute("Id").Value == id).FirstOrDefault();

            Student student = new Student();
            student.Id = Convert.ToInt32(studentXe.Attribute("Id").Value);
            student.Name = studentXe.Element("Name").Value;
            return View(student);
        }

        [HttpPost]
        public ActionResult Update(Student student)
        {
            string path = Server.MapPath("~/new.xml");
            var studentId = student.Id.ToString();
            XDocument xd = XDocument.Load(path);
            XElement node =
                xd.Root.Elements("Student").Where(e => e.Attribute("Id").Value == studentId).FirstOrDefault();
            node.SetElementValue("Name", student.Name);
            xd.Save(path);
            return RedirectToAction("Index");
        }

Home/Update.csthml中：

@model MvcApplication1.Models.Student

@{
    ViewBag.Title = "Update";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

Update

@using (Html.BeginForm("Update", "Home", FormMethod.Post, new {id = "editForm"}))
{
    @Html.HiddenFor(m => m.Id)
    
    @Html.LabelFor(m => m.Name)
    @Html.EditorFor(m => m.Name)

    

    
}

删除XML文件中的元素

HomeController中：

        public ActionResult Delete(string id)
        {
            string path = Server.MapPath("~/new.xml");
            XElement xe = XElement.Load(path);
            var studentXe = xe.Elements("Student").Where(e => e.Attribute("Id").Value == id).FirstOrDefault();

            Student student = new Student();
            student.Id = Convert.ToInt32(studentXe.Attribute("Id").Value);
            student.Name = studentXe.Element("Name").Value;
            return View(student);
        }

        [HttpPost]
        public ActionResult Delete(Student student)
        {
            string path = Server.MapPath("~/new.xml");
            var studentId = student.Id.ToString();
            XDocument xd = XDocument.Load(path);
            xd.Root.Elements("Student").Where(e => e.Attribute("Id").Value == studentId).Remove();
            xd.Save(path);
            return RedirectToAction("Index");
        }

Home/Delete.cshtml中：

@model MvcApplication1.Models.Student

@{
    ViewBag.Title = "Delete";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

Delete

@Model.Id


@Model.Name



@using (Html.BeginForm("Delete", "Home", FormMethod.Post, new {id = "delForm"}))
{
    @Html.HiddenFor(m => m.Id)
    
}

到此这篇关于ASP.NET MVC创建XML文件并实现元素增删改的文章就介绍到这了。希望对大家的学习有所帮助，也希望大家多多支持脚本之家。