nginx和apache添加brotli算法压缩网站

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什么是brotli?

brotli是Google开发的最新压缩算法,有效减少网站传输数据
具体内容请查看WIKI
https://en.wikipedia.org/wiki/Brotli

安装依赖文件[仅限centos]

yum groupinstall 'Development Tools' -y
yum install cmake -y

编译安装brotli库

wget https://github.com/google/brotli/archive/v1.0.3.tar.gz
tar -zxvf v1.0.3.tar.gz
cd brotli-1.0.3
./configure-cmake
make
make test
make install

apache/nginx添加编译参数

 "--enable-brotli"  \
"--with-brotli=/usr/local/lib" \   #apache官方模块,依赖brotli库

--add-module=../ngx_brotli-master   #添加ngx_brotli模块编译

ngx_brotli模块下载地址
https://github.com/google/ngx_brotli
https://github.com/eustas/ngx_brotli
20211010更新:
brotli更新了最新版本,nginx已经不需要主动编译依赖库,只需要将依赖放入相关目录即可
--add-module=../ngx_brotli-1.0.0rc

wget https://github.com/google/ngx_brotli/archive/refs/tags/v1.0.0rc.tar.gz 
tar zxvf v1.0*.gz
cd  ngx_brotli*/deps
wget  https://github.com/google/brotli/archive/refs/tags/v1.0.9.tar.gz
tar zxvf  v1.0*.gz
mv  brotli-*/*  brotli

apache/nginx修改配置文件
http://httpd.apache.org/docs/2.4/mod/mod_brotli.html
apache修改文件 /etc/httpd/conf/extra/httpd-deflate.conf

<IfModule brotli_module>
 SetOutputFilter BROTLI_COMPRESS;DEFLATE
 SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip no-brotli dont-vary
 BrotliCompressionQuality  6
 BrotliCompressionWindow 18
 AddOutputFilterByType BROTLI_COMPRESS text/html text/plain text/css text/xml
 AddOutputFilterByType BROTLI_COMPRESS application/x-javascript application/javascript
 AddOutputFilterByType BROTLI_COMPRESS application/rss+xml
 AddOutputFilterByType BROTLI_COMPRESS application/xml
 AddOutputFilterByType BROTLI_COMPRESS application/json
</IfModule>

#nginx配置文件  
    brotli on;
    brotli_types text/html text/plain text/javascript text/css text/xml text/x-component application/javascript application/x-javascript application/xml application/json application/xhtml+xml application/rss+xml application/atom+xml application/x-font-ttf application/vnd.ms-fontobject image/svg+xml image/x-icon font/opentype;
    brotli_static off;
    brotli_comp_level 6;
    brotli_buffers 8 16k;
    brotli_window 512k;
    brotli_min_length 512;

出错解决办法
nginx: error while loading shared libraries: libbrotlienc.so.1: cannot open shared object file: No such file or directory
可行的解决方案之一，是把对应的库文件做软链接：

# 64 位系统 
 ln -s /usr/local/lib/libbrotlienc.so.1 /lib64 
 ln -s /usr/local/lib/libbrotlicommon.so.1  /lib64
 
# 32 位系统 
ln -s /usr/local/lib/libbrotlienc.so.1 /lib 
ln -s /usr/local/lib/libbrotlicommon.so.1  /lib

重载nginx，若无报错，即问题解决
nginx -s reload

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