1、官网下载nginx稳定版
2、下载之后,解压到指定的目录
3、在nginx目录下打开cmd控制台,输入start nginx ,然后在浏览器页面输入localhost,出现如下界面则表示安装成功。默认监听80端口号。
4、负载均衡配置(打开nginx.conf)
weight代表权重越大则访问该服务的次数占比就越多
设置负载均衡配置(lezu 可以任意命令)
#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;
#负载均衡配置
upstream lezu{
server 127.0.0.1:8080 weight=1;
server 127.0.0.1:8081 weight=1;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
proxy_pass http://lezu;
}
#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;
# }
#}
}
配置完成之后通过 nginx -s reload 命令来刷新配置文件
5、springboot启动两个项目设置端口
–server.port=8080
–server.port=8081
6、通过接口测试工具进行测试访问
/**
* 单机业务
*
* @return
*/
@RequestMapping("/deductStock1")
public String deductStock1() throws InterruptedException {
/**
* 单机下单操作
* 存在的问题:
* 并发量过大会存在超卖
*/
//商品数量
// int stock = Integer.parseInt(redisTemplate.opsForValue().get("stock"));
// if (stock > 0) {
// int resultStock = stock - 1;
// redisTemplate.opsForValue().set("stock", resultStock + "");
// System.out.println("扣减成功,剩余库存:" + resultStock);
// } else {
// System.out.println("扣减失败,库存不足!");
// }
/**
* 使用synchronized来进行加锁操作
* 存在的问题:
* 分布式多台机器应用下会存在超卖
*/
synchronized (this) {
int stock = Integer.parseInt(redisTemplate.opsForValue().get("stock"));
if (stock > 0) {
int resultStock = stock - 1;
redisTemplate.opsForValue().set("stock", resultStock + "");
System.out.println("扣减成功,剩余库存:" + resultStock);
} else {
System.out.println("扣减失败,库存不足!");
}
}
/**
* 使用ReentrantLock加锁
* 存在的问题:
* 分布式多台机器应用下会存在超卖
*/
// lock.lock();
// try {
// int stock = Integer.parseInt(redisTemplate.opsForValue().get("stock"));
// if (stock > 0) {
// int resultStock = stock - 1;
// redisTemplate.opsForValue().set("stock", resultStock + "");
// System.out.println("扣减成功,剩余库存:" + resultStock);
// } else {
// System.out.println("扣减失败,库存不足!");
// }
// } catch (Exception e) {
// e.printStackTrace();
// return "error";
// } finally {
// lock.unlock();
// }
return "success";
}
成功实现负载均衡效果
nginx命令
查看Nginx的版本号:nginx -V
启动Nginx:start nginx
快速停止或关闭Nginx:nginx -s stop
正常停止或关闭Nginx:nginx -s quit
配置文件修改重装载命令:nginx -s reload
查看windows任务管理器下Nginx的进程命令:tasklist /fi “imagename eq nginx.exe”
Original: https://blog.csdn.net/weixin_42169734/article/details/124953186
Author: EvenBoy
Title: windows中nginx配置负载均衡
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