手把手教你SSM搭建Easymall电商项目 (七)
手把手教你SSM搭建Easymall电商项目 (七)
一.关于图片问题
1.因为图片的是一些静态页面或者.jpg 文件 ，可以把他们单独拿出来 用一个软件来管理
nginx简介
nginx是一款轻量级WEB服务器，也是一款反向代理服务器
nginx能干什么
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1.可以支持Rails和PHP程序
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2.可以作为HTTP反向代理服务器
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3.作为负载均衡服务器
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4.作为邮件代理服务器
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5.帮助实现前端动静分离 (目前实现的动静分离 )
nginx特点
高稳定；高性能；资源占用少；功能丰富；模块化结构；支持热部署
Nginx能做什么有什么优势
客户端假设通过HTTP协议访问A网站中的应用服务器，那么网站管理者可在服务器加一个Nginx(也就是所谓的反向代理)，让客户端线先请求Nginx，随后Nginx去请求应用服务器，然后将结果返回给客户端。那么可能会有小伙伴疑惑既然可以直接访问HTTP，那为何要多此一举，去先访问代理呢，这么做就什么好处呢，优势如下。
优势1-支持负载均衡
当一个网站访问量特别大的时候，网站的各种速度都会越来越慢，一台服务器肯定是不够用了。这个时候就需要将应用部署在多台服务器上，将请求平摊给多台服务器来处理。这样的好处是，万一某一台服务器GG了，但只要还有其他的服务器正常运行，就不会影响使用。这个时候就可以通过Nginx反向代理来实现负载均衡。
二.项目部署
解压就可以用
这是 conf 文件下的nginx.conf配置文件 start 启动 stop停止
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
#负载均衡，有3台服务器，默认就是轮询
upstream jt_tomcats {
server 192.168.163.10:8080 weight=3;
server 192.168.163.10:8090 weight=1;
server 192.168.163.10:8100 down;
}
#测试案例
server {
listen 80;
server_name www.easymall.com;
location / {
proxy_pass http://127.0.0.1:8090;
#proxy_pass http://jt_tomcats;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#测试案例2
server {
listen 80;
server_name www.image.com;
location / {
root D://jt-upload;
}
}
#后台服务器
server {
listen 80;
server_name manage.jt.com;
location / {
proxy_pass http://127.0.0.1:8081;
#proxy_pass http://jt_tomcats;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#前台服务器
server {
listen 80;
server_name www.jt.com;
#charset koi8-r;
#access_log logs/host.access.log main;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
location / {
proxy_pass http://127.0.0.1:8082;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#SSO服务器
server {
listen 80;
server_name sso.jt.com;
#charset koi8-r;
#access_log logs/host.access.log main;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
location / {
proxy_pass http://127.0.0.1:8083;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#购物车服务器
server {
listen 80;
server_name cart.jt.com;
#charset koi8-r;
#access_log logs/host.access.log main;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
location / {
proxy_pass http://127.0.0.1:8084;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#订单服务器
server {
listen 80;
server_name order.jt.com;
#charset koi8-r;
#access_log logs/host.access.log main;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
location / {
proxy_pass http://127.0.0.1:8085;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#前台搜索服务器
server {
listen 80;
server_name search.jt.com;
#charset koi8-r;
#access_log logs/host.access.log main;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
location / {
proxy_pass http://127.0.0.1:8086;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#后台搜索服务器
server {
listen 80;
server_name solr.jt.com;
#charset koi8-r;
#access_log logs/host.access.log main;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
location / {
proxy_pass http://192.168.163.80:8983;
proxy_connect_timeout 600;
proxy_read_timeout 600;
}
}
#图片服务器
server {
listen 80;
server_name image.jt.com;
#charset koi8-r;
#access_log logs/host.access.log main;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
location / {
root D://jt-upload;
}
}
}
三.效果图
