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Key points of front-end optimization of DiscuzX by Jinchengba_PHP tutorial

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Release: 2016-07-21 15:34:24
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最近,康盛的DX版本基本确定,至少短期内不会大变了,因此,我对晋城吧的整站进行了前端优化,把自己 所做的操作记录下来,一是有个记录,防止忘掉,二是和网上的朋友们共享下自己的心得。

前端优化 推荐工具

火狐浏览器+Yslow+google pagespeed+Firebug 具体下载地址 请自行百度

一、DX后台 及DIY的优化

1.首页DIY避免过多层的嵌套

DX的每一个框架都会产生非常多非常多非常多的 代码。我的首页已经尽可能简单了,结果光 DOM 有1600+,囧死我了。

所以,尽可能不要用过多的框架嵌套

2.避免过多的用户头像调用

首页的会员调用是使用重定向的,会减慢网页的速度,UCenter倒是能改为伪静态,但是目前是有BUG的,没有自定义头像 的会员头像是无法显示的

3.打开Gzip

在网站后台 或者到config.php文件 将Gzip打开

4.背景图尽可能重复利用,减少背景图的数量

各个栏目的背景图尽可能一样,这样可以重复利用图片,要找到美观和速度之间的平衡,这一条,我其实也还在不断的尝试 中,这里推荐监控宝的服务器访 问速度跟踪,可以全局掌握自己网站被用户访问时的速度状况。

5.打开并设置好后台的各种优化和缓存

关于这方面的资料很多,我就不在这里浪费时间了,(被pia飞~~~)

二、代码 及空间优化

1.利用minify压缩合并js

DX的CSS 基本合并的很好,一个页面一到2个,但是JS就很多了。打开你的模板的common目录的header.htm,看到么。密密麻麻的js ,而过 多的文件会造成连接过多,减慢速度。

这里我们利用minify将其合并 压缩 缓存

首先,下载minify的压缩包,解压,将min文件夹上传到网站根目录。

然后修改2个文件:

1.min 文件夹下的groupsConfig.php

/**
* Groups configuration for default Minify implementation
* @package Minify
*/
/**
* You may wish to use the Minify URI Builder app to suggest
* changes. http://yourdomain/min/builder/
**/
return array(

在上边的代码后边加上如下的代码

'portal' => array('//static/js/common.js', '//static/js/home_friendselector.js', '//static/js/forum.js', '//static/js/portal.js'),

               'forum' => array('//static/js/common.js', '//static/js/home_friendselector.js', '//static/js/forum.js'),

                'home' => array('//static/js/common.js', '//static/js/home_friendselector.js', '//static/js/home_cookie.js', '//static/js/home_common.js', '//static/js/home_face.js', '//static/js/home_manage.js'),

                    'userapp' => array('//static/js/common.js', '//static/js/home_friendselector.js', '//static/js/forum.js', '//static/js/home_common.js'),

2.修改模板的header.htm

什么??这个文件在哪里????我被你们打败了。。

修改如下 ,将第一段代码 替换为第二段


                   
                   
                           
                   
                          
                           
                           
                           
                  
                         
                  
                          
                  
                  
                          
                  
                   {subtemplate common/css_diy}

替换为


                          
                   
                           
                   
                           
                   
                           
                   
                  
                          
                  
                   {subtemplate common/css_diy}

打开晋城吧首页,点开源代码 ,看看 开头 的 head 里的 js 是不是少了很多啊

2.修改图片、flash、css、js的缓存时间

为上述东东设置缓存一个长长的缓存时间。比如1年,那么在第一次访问后,用户在这一年中都不用下载背景图,flash,css,js 。当然前提是你没有修改

方法 是修改网站根目录.htaccess文件

加入如下代码


   
    Header set Cache-Control "max-age=43200″
   

    #cache css, javascript and text files for one week
  
    Header set Cache-Control "max-age=604800″
   

    #cache flash and images for one month
  
   Header set Cache-Control "max-age=2592000″
 

   #disable cache for script files
  
   Header unset Cache-Control
  

  

3. Summary

Well, these are the temporary optimizations. Through these optimizations, the yslow score of Jincheng Bar has increased from 50 D to 80+ B, and the score of some pages is 90+ A. Overall it is very effective.

If you need to forward this article, please keep the Jincheng Bar link. If you can help me become a friend link, I would be very grateful. . .

Attached are the ratings of some websites on Yslow in 2007

Amazon   D

AOL   F

CNN   F

eBay   C

Google

MSN   F

MySpace D

Wikipedia C

Yahoo!  A

YouTube  D

Author: Jinchengba

Article source: http://www.jincheng8.com.cn/thread-303-1-1.html

http://www.bkjia.com/PHPjc/322414.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/322414.htmlTechArticleRecently, Kangsheng’s DX version is basically confirmed, at least in the short term, it will not change significantly. Therefore, I am optimistic about Jincheng The entire site of the bar has been front-end optimized and recorded the operations done. First, there is...
source:php.cn
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