MVC创建XML,并实现增删改
如果创建如下的XML:
<?xml version="1.0" encoding="utf-8" standalone="yes"?> <Students> <Student Id="1"> <Name>darren</Name> </Student> </Students>
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<MvcApplication1.Models.Student> @{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } <h2>Index</h2> <input type="button" value="创建XML" id="create"/> @section scripts { <script type="text/javascript"> $(function() { $(‘#create‘).on(‘click‘, function() { $.ajax({ url: ‘@Url.Action("AddXml", "Home")‘, dataType: ‘json‘, data: {}, type: ‘POST‘, success: function(data) { if (data.msg) { alert(‘创建成功‘); } } }); }); }); </script> }
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<Student> result = new List<Student>();
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<MvcApplication1.Models.Student> @{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } <h2>Index</h2> <input type="button" value="创建XML" id="create"/> <table> <tr> <th>编号</th> <th>姓名</th> </tr> @foreach (var item in Model) { <tr> <td>@item.Id</td> <td>@item.Name</td> <td>@Html.ActionLink("修改","Update","Home",new {id= item.Id},null)</td> <td>@Html.ActionLink("删除","Delete","Home", new {id = item.Id},null)</td> </tr> } </table> <br/> @Html.ActionLink("创建","Create","Home") @section scripts { <script type="text/javascript"> $(function() { $(‘#create‘).on(‘click‘, function() { $.ajax({ url: ‘@Url.Action("AddXml", "Home")‘, dataType: ‘json‘, data: {}, type: ‘POST‘, success: function(data) { if (data.msg) { alert(‘创建成功‘); } } }); }); }); </script> }
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"; } <h2>Create</h2> @using (Html.BeginForm("Create", "Home", FormMethod.Post, new {id = "addForm"})) { @Html.LabelFor(m => m.Id) @Html.EditorFor(m => m.Id) <br/> @Html.LabelFor(m => m.Name) @Html.EditorFor(m => m.Name) <br/> <input type="submit" value="创建"/> }
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"; } <h2>Update</h2> @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) <br/> <input type="submit" value="修改"/> }
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"; } <h2>Delete</h2> @Model.Id <br/> @Model.Name <br/> @using (Html.BeginForm("Delete", "Home", FormMethod.Post, new {id = "delForm"})) { @Html.HiddenFor(m => m.Id) <input type="submit" value="删除"/> }
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