ASP.NET MVC 使用分部视图制作公共头部，尾部，并通过ViewBag传值

一：新建分部视图

二：布局页_Layout.cshtml上调用

不灵活，不能传递数据，引用静态公共部分

@Html.Partial("_Head")

@Html.Partial("~/Views/Shared/_Head.cshtml")

通过控制器方法引入分部视图，控制器里可以向分部视图传递数据，引用动态公共部分

@Html.Action("Head", "Home")

三：代码展示：

布局页_Layout.cshtml，因为@RenderSection只能放在布局页，所以@Html.Action("Foot", "Home")下面的一坨就没放在_Foot里面，会报错。

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>@ViewBag.Title</title>
    @Html.Action("Meta", "Home")
    <link rel="stylesheet" href="~/Content/font-awesome/css/font-awesome.min.css">
    <link rel="stylesheet" href="~/Content/layui/css/layui.css" />
    <link rel="stylesheet" href="~/Content/css/master.css" />
    <link rel="stylesheet" href="~/Content/css/gloable.css" />
    <link rel="stylesheet" href="~/Content/css/nprogress.css" />
    @RenderSection("css", required: false)
</head>
<body>
    @Html.Action("Head", "Home")
    @RenderBody()
    @Html.Action("Foot", "Home")
    <script src="~/Content/layui/layui.js"></script>
    <script src="~/Content/js/yss/gloable.js"></script>
    <script src="~/Content/js/plugins/nprogress.js"></script>
    <script>NProgress.start();</script>
    @RenderSection("js", required: false)
    <script>
        window.onload = function () {
            NProgress.done();
        };
    </script>
    <script>
        (function () {
            var bp = document.createElement('script');
            var curProtocol = window.location.protocol.split(':')[];
            if (curProtocol === 'https') {
                bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
            }
            else {
                bp.src = 'http://push.zhanzhang.baidu.com/push.js';
            }
            var s = document.getElementsByTagName("script")[];
            s.parentNode.insertBefore(bp, s);
        })();
    </script>
</body>
</html>

我把控制器方法写在了首页，因为博客首页头部尾部不公共的，其实写哪里都一样，返回分部视图就ok。

首页控制器：/Home

返回分部视图千万不要用 return View(model.GetWebSiteInfo());  会默认找~Views/Home/ 下面的视图，严重错误，IIS Express直接崩掉自动退出

using RightControl.IService;
using RightControl.WebApp.Models;
using System.Web.Mvc;

namespace RightControl.WebApp.Controllers
{
    public class HomeController : Controller
    {
        public IArticleService service { get; set; }
        WebSiteInfo model = new WebSiteInfo();
        // GET: Home
        public ActionResult Index()
        {
            ViewBag.HotArtileList = service.GetHotArticle();
            return View(model.GetWebSiteInfo());
        }
        public ActionResult Meta()
        {
            ViewBag.Site = model.GetWebSiteInfo();
            return PartialView("~/Views/Shared/_Meta.cshtml");
        }
        public ActionResult Head()
        {
            ViewBag.Site = model.GetWebSiteInfo();
            return PartialView("~/Views/Shared/_Head.cshtml");
        }
        public ActionResult Foot()
        {
            ViewBag.Site = model.GetWebSiteInfo();
            return PartialView("/Views/Shared/_Foot.cshtml");
        }
    }
}

_Meta.cshtml

<meta name="keywords" content="@ViewBag.Site.MetaKey" />
<meta name="description" content="@ViewBag.Site.MetaDescribe">

_Head.cshtml

<div class="header">
</div>
<header class="gird-header">
    <div class="header-fixed">
        <div class="header-inner">
            <a href="javascript:void(0)" class="header-logo" id="logo">@ViewBag.Site.SiteName</a>
            <nav class="nav" id="nav">
                <ul>
                    <li><a href="/Home">首页</a></li>
                    <li><a href="/Article">博客</a></li>
                    <li><a href="/Feedback">留言</a></li>
                    <li><a href="/Diarys">日记</a></li>
                    <li><a href="/Links">友链</a></li>
                    <li><a href="/About">关于</a></li>
                </ul>
            </nav>
            <a href="/User/QQLogin" class="blog-user">
                <i class="fa fa-qq"></i>
            </a>
            <a class="phone-menu">
                <i></i>
                <i></i>
                <i></i>
            </a>
        </div>
    </div>
</header>

_Foot.cshtml

<footer class="grid-footer">
    <div class="footer-fixed">
        <div class="copyright">
            <div class="info">
                <div class="contact">
                    <a href="@ViewBag.Site.Gitee" class="github" target="_blank"><i class="fa fa-github"></i></a>
                    <a href="https://wpa.qq.com/msgrd?v=3&uin=@ViewBag.Site.QQ&site=qq&menu=yes" class="qq" target="_blank" title="@ViewBag.Site.QQ"><i class="fa fa-qq"></i></a>
                    <a href="https://mail.qq.com/cgi-bin/qm_share?t=qm_mailme&email=@ViewBag.Site.Mail" class="email" target="_blank" title="@ViewBag.Site.Mail"><i class="fa fa-envelope"></i></a>
                    <a href="javascript:void(0)" class="weixin"><i class="fa fa-weixin"></i></a>
                </div>
                <p class="mt05">
                    @ViewBag.Site.CopyRight
                </p>
            </div>
        </div>
    </div>
</footer>

最终效果：

头部尾部提取公共部分还有一种做法，不用分部视图，直接用布局页：

新建BaseController控制器，里面获取网站头部尾部需要的WebSiteInfo信息，除开博客首页每个页面的控制器都继承它，布局页直接使用BaseController的WebSiteInfo信息，通过ViewBag的方式给布局页头尾赋值。

最后总结，个人还是喜欢用分部视图来抽出头部尾部的，继承BaseController的方法虽然不用新建部分视图，但是也要每个有公共头尾的页面控制器去继承它，想想也有点膈应。