js css等静态文件版本控制,一处配置多处更新.net版【原创】

日常web开发中，我们修改了js、css等静态资源文件后，如果文件名不变的话，客户端浏览并不会及时获取最新的资源文件，这就很尴尬了

怎么办呢？

1.实习生：让客户清除缓存？，no ，客户是爸爸  不靠谱

2.初级开发：把文件名改了？，可以，但我们产品样式一天更新8百次，怎么办？不方便

<link href="/css/old.css" rel="stylesheet" type="text/css" />
<link href="/css/new.css" rel="stylesheet" type="text/css" />
...
<link href="/css/new800.css" rel="stylesheet" type="text/css" />

3.中级开发：加版本号？，可以，但这个文件，我们有好几个地方用，版本号都加的乱咯？ 不方便

<link href="/css/active.css?v=20181120" rel="stylesheet" type="text/css" />

4.中高级开发（小弟不才）：自己搞个，一处配置多处更新，.net版   舒服
    利用json的键值特性, 此处仅用js,css举例，其他图片等静态资源，都可以使用

  一、 新建json文件 cssjsversion.json

{
  //请添加需要刷新的js或css文件
  //说明："键值": "指向文件"
  //"css/common.css": "css/common_20170223.css"
  "pc/css/common.css": "pc/css/common.css?v=20170829001",
  "pc/css/active.css": "pc/css/active.css?v=20180620001",
  "pc/js/gasgoojs.common.base.js": "pc/js/gasgoojs.common.base.js?v=20170816001",
  "pc/js/event.js": "pc/js/event.js?v=20180508001",
  "pc/js/events.js": "pc/js/events.js?v=20180111007",
  "pc/js/masterpage.js": "pc/js/masterpage.js?v=20170918001",
  "pc/js/home.js": "pc/js/home.js?v=20171013001",
  "pc/js/af.js": "pc/js/af.js?v=20180810",
  "wap/css/common.css": "wap/css/common.css?v=20171222001",
  "wap/css/active.css": "wap/css/active.css?v=20171228001",
  "wap/css/css.css": "wap/css/css.css?v=20180813001",
  "wap/js/events.js": "wap/js/events.js?v=20180517002",
  "wap/js/event.js": "wap/js/event.js?v=20171222005",
  "wap/js/applyform.js": "wap/js/applyform.js?v=20171228001",
  "wap/js/masterpage.js": "wap/js/masterpage.js?v=20170918001",
  "ticket/css/ticket.css": "ticket/css/ticket.css?v=20180608",
    "pay/css/css.css": "pay/css/css.css?v=20180831"
}

view code

  二、 新建类contentconfig.cs

using system;
using system.collections.generic;
using system.linq;
using system.web;
using newtonsoft.json.linq;
using system.io;
using newtonsoft.json;

/// <summary>
/// contentconfig 的摘要说明
/// </summary>
public class contentconfig
{
    private static bool nocache = true;
    private static jobject builditems()
    {
        var json = file.readalltext(httpcontext.current.server.mappath("~/content/json/cssjsversion.json"));
        return jobject.parse(json);
    }

    public static jobject items
    {
        get
        {
            if (nocache || _items == null)
            {
                _items = builditems();
            }
            return _items;
        }
    }
    private static jobject _items;


    public static t getvalue<t>(string key)
    {

        try
        {
            return items[key].value<t>();
        }
        catch (exception)
        {

            return items["erro"].value<t>();
        }

    }

    public static string[] getstringlist(string key)
    {
        return items[key].select(x => x.value<string>()).toarray();
    }

    public static string getstring(string key)
    {
        return getvalue<string>(key);
    }

    public static int getint(string key)
    {
        return getvalue<int>(key);
    }
    public static string getjscssversionurl(string oldfilename)
    {
        string url = config.resource_path + "/";
        try
        {
            url += getstring(oldfilename);
        }
        catch (exception)//未找到 oldfilename
        {
            url += oldfilename;
        }
        return url;
    }

    /// <summary>
    /// 把json文本转为实体
    /// </summary>
    /// <typeparam name="t"></typeparam>
    /// <param name="input"></param>
    /// <returns></returns>
    public static t fromjson<t>(string input)
    {
        try
        {
            return jsonconvert.deserializeobject<t>(input);
        }
        catch (exception ex)
        {
            return default(t);
        }
    }
}

view code

  三、调用

js：

<script src="<%= contentconfig.getjscssversionurl("pc/js/home.js") %>"></script>

css:

 <link href="<%= contentconfig.getjscssversionurl("pc/css/common.css") %>" rel="stylesheet" type="text/css" />

 

5.高级开发：任何打包工具都可以做到，如webpack,grunt,gulp  牛逼666      正在学习...

 

后语：

  1. 第四个方法是笔者实际中使用的，有什么问题，也可以交流交流(*￣︶￣)

  2.方法那样使用，但不限于那样使用，随意发挥

  3.