一、添加文章
1、KindEditor富文本编辑器
到官方网站http://kindeditor.net/down.php下载最新版本,解压后把代码复制到项目的Scripts文件夹下。
2、添加界面的显示。
在ArticleController中添加Add 方法
/// <summary> /// 添加文章 /// </summary> /// <returns>视图页面</returns> public ActionResult Add() { return View(); }
右键添加Article的强类型视图,代码如下
@section scripts{ <script type=\"text/javascript\" src=\"~/Scripts/KindEditor/kindeditor-min.js\"></script> <script type=\"text/javascript\"> //编辑框 KindEditor.ready(function (K) { window.editor = K.create(\'#Content\', { height: \'500px\' }); }); </script> } @model Ninesky.Models.Article @using (Html.BeginForm()) { @Html.AntiForgeryToken() <div class=\"form-horizontal\" role=\"form\"> <h4>添加文章</h4> <hr /> @Html.ValidationSummary(true) <div class=\"form-group\"> <label class=\"control-label col-sm-2\" for=\"CommonModel_CategoryID\">栏目</label> <div class=\"col-sm-10\"> <input id=\"CommonModel_CategoryID\" name=\"CommonModel.CategoryID\" data-options=\"url:\'@Url.Action(\"JsonTree\", \"Category\", new { model=\"Article\" })\'\" class=\"easyui-combotree\" style=\"height: 34px; width: 280px;\" /> @Html.ValidationMessageFor(model => model.CommonModel.CategoryID)</div> </div> <div class=\"form-group\"> @Html.LabelFor(model => model.CommonModel.Title, new { @class = \"control-label col-sm-2\" }) <div class=\"col-sm-10\"> @Html.TextBoxFor(model => model.CommonModel.Title, new { @class = \"form-control\" }) @Html.ValidationMessageFor(model => model.CommonModel.Title) </div> </div> <div class=\"form-group\"> @Html.LabelFor(model => model.Author, new { @class = \"control-label col-sm-2\" }) <div class=\"col-sm-10\"> @Html.TextBoxFor(model => model.Author, new { @class = \"form-control\" }) @Html.ValidationMessageFor(model => model.Author) </div> </div> <div class=\"form-group\"> @Html.LabelFor(model => model.Source, new { @class = \"control-label col-sm-2\" }) <div class=\"col-sm-10\"> @Html.TextBoxFor(model => model.Source, new { @class = \"form-control\" }) @Html.ValidationMessageFor(model => model.Source) </div> </div> <div class=\"form-group\"> @Html.LabelFor(model => model.Intro, new { @class = \"control-label col-sm-2\" }) <div class=\"col-sm-10\"> @Html.TextAreaFor(model => model.Intro, new { @class = \"form-control\" }) @Html.ValidationMessageFor(model => model.Intro) </div> </div> <div class=\"form-group\"> @Html.LabelFor(model => model.Content, new { @class = \"control-label col-sm-2\" }) <div class=\"col-sm-10\"> @Html.EditorFor(model => model.Content) @Html.ValidationMessageFor(model => model.Content) </div> </div> <div class=\"form-group\"> @Html.LabelFor(model => model.CommonModel.DefaultPicUrl, new { @class = \"control-label col-sm-2\" }) <div class=\"col-sm-10\"> <img id=\"imgpreview\" class=\"thumbnail\" src=\"\" /> @Html.HiddenFor(model => model.CommonModel.DefaultPicUrl) <a id=\"btn_picselect\" class=\"easyui-linkbutton\">选择…</a> @Html.ValidationMessageFor(model => model.CommonModel.DefaultPicUrl) </div> </div> <div class=\"form-group\"> <div class=\"col-sm-offset-2 col-sm-10\"> <input type=\"submit\" value=\"添加\" class=\"btn btn-default\" /> </div> </div> </div> }
效果如图
3、后台接受的处理。
[ValidateInput(false)] [HttpPost] [ValidateAntiForgeryToken] public ActionResult Add(Article article) { if(ModelState.IsValid) { //设置固定值 article.CommonModel.Hits = 0; article.CommonModel.Inputer = User.Identity.Name; article.CommonModel.Model = \"Article\"; article.CommonModel.ReleaseDate = System.DateTime.Now; article.CommonModel.Status = 99; article = articleService.Add(article); if (article.ArticleID > 0) { return View(\"AddSucess\", article); } } return View(article); }
在做架构的时候DAL、BLL的base类里有Add方法,我们可以直接使用ArticleService.Add方法添加到数据库
添加文章功能就实现了,但是不能上传附件,不能选择首页图片,不能删除多余的附件。下面就来实现附件功能。
二、附件上传
目标可以上传附件(图片,文件等),文件保存到上传目录中,且数据库中保存相应记录,可以浏览文件列表,未使用的附件可以删除记录。
一、添加附件
在AttachmentController添加Upload()方法,方法方法把文件写入磁盘中把附件的记录也保存到数据库中,中间会用到读取配置文件,见《.Net MVC 网站中配置文件的读写》。
/// <summary> /// 上传附件 /// </summary> /// <returns></returns> public ActionResult Upload() { var _uploadConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(\"~\").GetSection(\"UploadConfig\") as Ninesky.Models.Config.UploadConfig; //文件最大限制 int _maxSize = _uploadConfig.MaxSize; //保存路径 string _savePath; //文件路径 string _fileParth = \"~/\" + _uploadConfig.Path + \"/\"; //文件名 string _fileName; //扩展名 string _fileExt; //文件类型 string _dirName; //允许上传的类型 Hashtable extTable = new Hashtable(); extTable.Add(\"image\", _uploadConfig.ImageExt); extTable.Add(\"flash\", _uploadConfig.FileExt); extTable.Add(\"media\", _uploadConfig.MediaExt); extTable.Add(\"file\", _uploadConfig.FileExt); //上传的文件 HttpPostedFileBase _postFile = Request.Files[\"imgFile\"]; if (_postFile == null) return Json(new { error = \'1\', message = \"请选择文件\" }); _fileName = _postFile.FileName; _fileExt = Path.GetExtension(_fileName).ToLower(); //文件类型 _dirName = Request.QueryString[\"dir\"]; if (string.IsNullOrEmpty(_dirName)) { _dirName = \"image\"; } if (!extTable.ContainsKey(_dirName)) return Json(new { error = 1, message = \"目录类型不存在\" }); //文件大小 if (_postFile.InputStream == null || _postFile.InputStream.Length > _maxSize) return Json(new { error = 1, message = \"文件大小超过限制\" }); //检查扩展名 if (string.IsNullOrEmpty(_fileExt) || Array.IndexOf(((string)extTable[_dirName]).Split(\',\'), _fileExt.Substring(1).ToLower()) == -1) return Json(new { error = 1, message = \"不允许上传此类型的文件。 \\n只允许\" + ((String)extTable[_dirName]) + \"格式。\" }); _fileParth += _dirName + \"/\" + DateTime.Now.ToString(\"yyyy-MM\") + \"/\"; _savePath = Server.MapPath(_fileParth); //检查上传目录 if (!Directory.Exists(_savePath)) Directory.CreateDirectory(_savePath); string _newFileName = DateTime.Now.ToString(\"yyyyMMdd_hhmmss\") + _fileExt; _savePath += _newFileName; _fileParth += _newFileName; //保存文件 _postFile.SaveAs(_savePath); //保存数据库记录 attachmentService.Add(new Attachment() { Extension = _fileExt.Substring(1), FileParth = _fileParth, Owner = User.Identity.Name, UploadDate = DateTime.Now, Type = _dirName }); return Json(new { error = 0, url = Url.Content(_fileParth) }); }
二、查询附件列表
打开InterfaceAttachmentService接口,添加两个方法,都进行了注释比较容易理解,直接上代码。
/// <summary> /// 查找附件列表 /// </summary> /// <param name=\"modelID\">公共模型ID</param> /// <param name=\"owner\">所有者</param> /// <param name=\"type\">类型</param> /// <returns></returns> IQueryable<Models.Attachment> FindList(Nullable<int> modelID, string owner, string type); /// <summary> /// 查找附件列表 /// </summary> /// <param name=\"modelID\">公共模型ID</param> /// <param name=\"owner\">所有者</param> /// <param name=\"type\">所有者</param> /// <param name=\"withModelIDNull\">包含ModelID为Null的</param> /// <returns></returns> IQueryable<Models.Attachment> FindList(int modelID, string owner, string type,bool withModelIDNull);
AttachmentService中写现实代码
public IQueryable<Models.Attachment> FindList(Nullable<int> modelID, string owner, string type) { var _attachemts = CurrentRepository.Entities.Where(a => a.ModelID == modelID); if (!string.IsNullOrEmpty(owner)) _attachemts = _attachemts.Where(a => a.Owner == owner); if (!string.IsNullOrEmpty(type)) _attachemts = _attachemts.Where(a => a.Type == type); return _attachemts; } public IQueryable<Models.Attachment> FindList(int modelID, string owner, string type, bool withModelIDNull) { var _attachemts = CurrentRepository.Entities; if (withModelIDNull) _attachemts = _attachemts.Where(a => a.ModelID == modelID || a.ModelID == null); else _attachemts = _attachemts.Where(a => a.ModelID == modelID); if (!string.IsNullOrEmpty(owner)) _attachemts = _attachemts.Where(a => a.Owner == owner); if (!string.IsNullOrEmpty(type)) _attachemts = _attachemts.Where(a => a.Type == type); return _attachemts; }
由于KindEditor文件管理需要从服务器获取json格式文件列表,在Ninesky.Web.Areas.Member.Models中单独给列表格式写个视图模型。AttachmentManagerViewModel
namespace Ninesky.Web.Areas.Member.Models { /// <summary> /// KindEditor文件管理中文件视图模型 /// <remarks> /// 创建:2014.03.09 /// </remarks> /// </summary> public class AttachmentManagerViewModel { public bool is_dir{get;set;} public bool has_file {get;set;} public int filesize {get;set;} public bool is_photo{get;set;} public string filetype{get;set;} public string filename{get;set;} public string datetime { get; set; } } }
在AttachmentController添加返回文件列表的方法FileManagerJson。方法供KindEditor的文件管理器调用
/// <summary> /// 附件管理列表 /// </summary> /// <param name=\"id\">公共模型ID</param> /// <param name=\"dir\">目录(类型)</param> /// <returns></returns> public ActionResult FileManagerJson(int? id ,string dir) { Models.AttachmentManagerViewModel _attachmentViewModel; IQueryable<Attachment> _attachments; //id为null,表示是公共模型id为null,此时查询数据库中没有跟模型对应起来的附件列表(以上传,但上传的文章……还未保存) if (id == null) _attachments = attachmentService.FindList(null, User.Identity.Name, dir); //id不为null,返回指定模型id和id为null(新上传的)附件了列表 else _attachments = attachmentService.FindList((int)id, User.Identity.Name, dir, true); //循环构造AttachmentManagerViewModel var _attachmentList = new List<Models.AttachmentManagerViewModel>(_attachments.Count()); foreach(var _attachment in _attachments) { _attachmentViewModel = new Models.AttachmentManagerViewModel() { datetime = _attachment.UploadDate.ToString(\"yyyy-MM-dd HH:mm:ss\"), filetype = _attachment.Extension, has_file = false, is_dir = false, is_photo = _attachment.Type.ToLower() == \"image\" ? true : false, filename = Url.Content(_attachment.FileParth) }; FileInfo _fileInfo = new FileInfo(Server.MapPath(_attachment.FileParth)); _attachmentViewModel.filesize = (int)_fileInfo.Length; _attachmentList.Add(_attachmentViewModel); } return Json(new { moveup_dir_path = \"\", current_dir_path = \"\", current_url = \"\", total_count = _attachmentList.Count, file_list = _attachmentList },JsonRequestBehavior.AllowGet); }
3、为图片创建缩略图
把创建缩略图的方法写着Common项目中
在Ninesky.Common的Picture类中添加方法
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Drawing; using System.Drawing.Drawing2D; using System.Security.Cryptography; namespace Ninesky.Common { /// <summary> /// 图片相关 /// <remarks> /// 创建:2014.02.11 /// </remarks> /// </summary> public class Picture { /// <summary> /// 创建缩略图 /// </summary> /// <param name=\"originalPicture\">原图地址</param> /// <param name=\"thumbnail\">缩略图地址</param> /// <param name=\"width\">宽</param> /// <param name=\"height\">高</param> /// <returns>是否成功</returns> public static bool CreateThumbnail(string originalPicture, string thumbnail, int width, int height) { //原图 Image _original = Image.FromFile(originalPicture); // 原图使用区域 RectangleF _originalArea = new RectangleF(); //宽高比 float _ratio = (float)width/height; if(_ratio > ((float)_original.Width/_original.Height)) { _originalArea.X =0; _originalArea.Width = _original.Width; _originalArea.Height = _originalArea.Width / _ratio; _originalArea.Y = (_original.Height - _originalArea.Height) / 2; } else { _originalArea.Y = 0; _originalArea.Height = _original.Height; _originalArea.Width = _originalArea.Height * _ratio; _originalArea.X = (_original.Width - _originalArea.Width) / 2; } Bitmap _bitmap = new Bitmap(width, height); Graphics _graphics = Graphics.FromImage(_bitmap); //设置图片质量 _graphics.InterpolationMode = InterpolationMode.High; _graphics.SmoothingMode = SmoothingMode.HighQuality; //绘制图片 _graphics.Clear(Color.Transparent); _graphics.DrawImage(_original, new RectangleF(0, 0, _bitmap.Width, _bitmap.Height), _originalArea, GraphicsUnit.Pixel); //保存 _bitmap.Save(thumbnail); _graphics.Dispose(); _original.Dispose(); _bitmap.Dispose(); return true; } } }
在AttachmentController添加生成缩略图的action
/// <summary> /// 创建缩略图 /// </summary> /// <param name=\"originalPicture\">原图地址</param> /// <returns>缩略图地址。生成失败返回null</returns> public ActionResult CreateThumbnail(string originalPicture) { //原图为缩略图直接返回其地址 if (originalPicture.IndexOf(\"_s\") > 0) return Json(originalPicture); //缩略图地址 string _thumbnail = originalPicture.Insert(originalPicture.LastIndexOf(\'.\'), \"_s\"); //创建缩略图 if (Common.Picture.CreateThumbnail(Server.MapPath(originalPicture), Server.MapPath(_thumbnail), 160, 120)) { //记录保存在数据库中 attachmentService.Add(new Attachment(){ Extension= _thumbnail.Substring(_thumbnail.LastIndexOf(\'.\')+1), FileParth=\"~\"+_thumbnail, Owner= User.Identity.Name, Type=\"image\", UploadDate= DateTime.Now}); return Json(_thumbnail); } return Json(null); }
三、整合
添加和上传附件都做好了,现在把他们整合到一起,我们就可以上传附件了。
打开Add视图,在创建KindEditor位置添加脚本
现在打开浏览器就可以上传和管理附件了
添加文章的最后一个字段是文章的默认首页图片,我希望点击选择按钮,可以在已上传中选择图片,并创建缩略图。
那么在Add视图里再弹出一个文件空间让用户选择已上传的文件,用户选择后讲选择的地址发送到服务器创建缩略图,并返回缩略图地址,然后将地址复制给隐藏表单,CommonModel_DefaultPicUrl,同事复制个<img />的src属性用来显示图片。Js代码如下:
//首页图片 var editor2 = K.editor({ fileManagerJson: \'@Url.Action(\"FileManagerJson\", \"Attachment\")\' }); K(\'#btn_picselect\').click(function () { editor2.loadPlugin(\'filemanager\', function () { editor2.plugin.filemanagerDialog({ viewType: \'VIEW\', dirName: \'image\', clickFn: function (url, title) { var url; $.ajax({ type: \"post\", url: \"@Url.Action(\"CreateThumbnail\", \"Attachment\")\", data: { originalPicture: url }, async: false, success: function (data) { if (data == null) alert(\"生成缩略图失败!\"); else { K(\'#CommonModel_DefaultPicUrl\').val(data); K(\'#imgpreview\').attr(\"src\", data); } editor2.hideDialog(); } }); } }); }); });
看下效果
在保存文章的action中删除未使用的附件
完整的Add方法代码
[ValidateInput(false)] [HttpPost] [ValidateAntiForgeryToken] public ActionResult Add(Article article) { if(ModelState.IsValid) { //设置固定值 article.CommonModel.Hits = 0; article.CommonModel.Inputer = User.Identity.Name; article.CommonModel.Model = \"Article\"; article.CommonModel.ReleaseDate = System.DateTime.Now; article.CommonModel.Status = 99; article = articleService.Add(article); if (article.ArticleID > 0) { //附件处理 InterfaceAttachmentService _attachmentService = new AttachmentService(); //查询相关附件 var _attachments = _attachmentService.FindList(null, User.Identity.Name, string.Empty).ToList(); //遍历附件 foreach(var _att in _attachments) { var _filePath = Url.Content(_att.FileParth); //文章首页图片或内容中使用了该附件则更改ModelID为文章保存后的ModelID if ((article.CommonModel.DefaultPicUrl != null && article.CommonModel.DefaultPicUrl.IndexOf(_filePath) >= 0) || article.Content.IndexOf(_filePath) > 0) { _att.ModelID = article.ModelID; _attachmentService.Update(_att); } //未使用改附件则删除附件和数据库中的记录 else { System.IO.File.Delete(Server.MapPath(_att.FileParth)); _attachmentService.Delete(_att); } } return View(\"AddSucess\", article); } } return View(article); }
单纯添加文章比较简单,复杂点在上传附件,浏览新添加的附件,删除文章中未使用的附件及生成缩略图上。KindEditor还支持批量上传附件,由于批量上传使用的swfupload,在提交时flash没传输cookie到服务器,无法验证用户导致上传失败,暂时无法使用批量上传,希望这篇文章可以对大家的学习有所帮助,大家可以结合小编之前发的文章进行学习,相信一定会有所收获。
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