From 0b46eca5530f8f1397b4486cffa23d50de4de2e6 Mon Sep 17 00:00:00 2001 From: SQB10190 Date: Thu, 20 May 2021 14:38:11 +0800 Subject: [PATCH] =?UTF-8?q?feat:=20=E9=A1=B5=E9=9D=A2=E9=9D=99=E6=80=81?= =?UTF-8?q?=E5=8C=96?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .gitignore | 1 + .../backmgr/Controllers/ArticleController.cs | 12 ++ Blog/Blog.csproj | 1 + Blog/Controllers/HomeController.cs | 5 +- Blog/Filters/StaticHtmlAttribute.cs | 110 ++++++++++++++++++ 5 files changed, 128 insertions(+), 1 deletion(-) create mode 100644 Blog/Filters/StaticHtmlAttribute.cs diff --git a/.gitignore b/.gitignore index 2622a0d..3df200e 100644 --- a/.gitignore +++ b/.gitignore @@ -215,3 +215,4 @@ _Pvt_Extensions/ ModelManifest.xml *.db3 /Blog/Upload +Blog/html/ diff --git a/Blog/Areas/backmgr/Controllers/ArticleController.cs b/Blog/Areas/backmgr/Controllers/ArticleController.cs index 5fadff4..adc93a6 100644 --- a/Blog/Areas/backmgr/Controllers/ArticleController.cs +++ b/Blog/Areas/backmgr/Controllers/ArticleController.cs @@ -4,6 +4,7 @@ using Blog.Service; using System; using System.Collections.Generic; +using System.IO; using System.Linq; using System.Web; using System.Web.Mvc; @@ -107,6 +108,7 @@ public JsonResult Add(string articleId, string title, string content, List _articleLabelService.Add(int.Parse(articleId), item); } } + RemoveHtmlFile(urlTitle); } catch (Exception ex) { @@ -154,6 +156,16 @@ private void AddValidate(string articleId, string title, string content, string // throw new ValidateException(102, $"标题请在50字内"); } + private void RemoveHtmlFile(string urlTitle) + { + string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "html", "Home-ViewArticle"); + string fileName = Path.Combine(path, urlTitle + ".html"); + if (System.IO.File.Exists(fileName)) + { + System.IO.File.Delete(fileName); + } + } + [HttpPost] [ValidateAntiForgeryToken] public ActionResult Del(int? id) diff --git a/Blog/Blog.csproj b/Blog/Blog.csproj index a5464f3..59baf3e 100644 --- a/Blog/Blog.csproj +++ b/Blog/Blog.csproj @@ -1055,6 +1055,7 @@ + diff --git a/Blog/Controllers/HomeController.cs b/Blog/Controllers/HomeController.cs index 994073b..1521b05 100644 --- a/Blog/Controllers/HomeController.cs +++ b/Blog/Controllers/HomeController.cs @@ -1,9 +1,11 @@ -using Blog.Models; +using Blog.Filters; +using Blog.Models; using Blog.Repository; using Blog.Service; using PagedList; using System; using System.Collections.Generic; +using System.IO; using System.Linq; using System.Web; using System.Web.Mvc; @@ -43,6 +45,7 @@ public ActionResult Detail(string id) return View(model); } + [StaticHtml] public ActionResult ViewArticle(string urlTitle) { if (string.IsNullOrEmpty(urlTitle)) diff --git a/Blog/Filters/StaticHtmlAttribute.cs b/Blog/Filters/StaticHtmlAttribute.cs new file mode 100644 index 0000000..59626fd --- /dev/null +++ b/Blog/Filters/StaticHtmlAttribute.cs @@ -0,0 +1,110 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Text; +using System.Web; +using System.Web.Mvc; +using System.IO; +using System.Web.UI; + +namespace Blog.Filters +{ + public class StaticHtmlAttribute : ActionFilterAttribute + { + //用于保存渲染后的html文本 + static StringBuilder sb; + //这几个Writer照着写就行了 + static StringWriter sw; + static HtmlTextWriter hw; + static TextWriter tw; + //自定义的静态页面的后缀名 + static string ext = ".html"; + //静态页面的绝对路径(包括后缀名) + string fileName = null; + ///静态页面的绝对路径(不包括后缀名) + static string path = null; + //静态文件是否存在 + bool FileExists = false; + + /// + /// Action执行前，判断当前页面是否已经被静态化（Views路径下是否存在html文件） + /// 如果存在静态文件则直接设置filterContext的result，即返回html作为结果，而不执行Action中代码 + /// 如果不存在静态页面文件，则不设置filterContext的result，此时将会执行Action中的代码 + /// + /// + public override void OnActionExecuting(ActionExecutingContext filterContext) + { + //根据controller和action信息 + string controller = filterContext.RouteData.Values["controller"].ToString(); + string action = filterContext.RouteData.Values["action"].ToString(); + string urlTitle = filterContext.RouteData.Values["urlTitle"].ToString(); + // object id = null; + //路由中是否包含可选参数id，如果有，则在文件名也要体现 + //if (!filterContext.RouteData.Values.TryGetValue("urlTitle", out id)) + //{ + // path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Views", controller, action); + // fileName = string.Format("{0}{1}", path, ext); + //} + //else + //{ + // path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Views", controller, action); + // fileName = string.Format("{0}{1}{2}", path, id.ToString(), ext); + //} + + path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "html", controller + "-" + action); + if (!Directory.Exists(path)) + { + Directory.CreateDirectory(path); + } + fileName = Path.Combine(path, urlTitle + ext); + + + //拼装后缀名 + + FileExists = File.Exists(fileName); + //如果文件存在，直接返回结果 + if (FileExists) + { + filterContext.Result = new FileContentResult(File.ReadAllBytes(fileName), "text/html; charset=utf-8"); + } + } + /// + /// 执行完Action后，但渲染页面前执行此处 + /// 渲染页面的意思是将cshtml中的后台代码，翻译为前台代码 + /// + /// + /// + public override void OnResultExecuting(ResultExecutingContext filterContext) + { + + if (!FileExists) + { + //保存html + sb = new StringBuilder(); + //两个writer + sw = new StringWriter(sb); + hw = new HtmlTextWriter(sw); + //记住Response中原本输出流，用于返回本次请求的html，与下一句配合使用 + //在渲染结束后，向tw内写入html内容 + tw = filterContext.RequestContext.HttpContext.Response.Output; + //过滤器自己输出流，用于获取渲染后的html内容 + filterContext.RequestContext.HttpContext.Response.Output = hw; + } + + } + public override void OnResultExecuted(ResultExecutedContext filterContext) + { + //如果是静态文件不存在 + if (!FileExists) + { + //获取渲染后的html文本 + string res = sb.ToString(); + //将文本写入到静态文件中 + new Action(() => File.WriteAllText(fileName, res)).BeginInvoke(null, null); + //向Response的输出流中写入本次请求的html + tw.Write(sb.ToString()); + } + } + } + +} \ No newline at end of file