Nginx的使用

作为反向代理服务器

server {
        listen       8080;                 #监听端口
        server_name  127.0.0.1;			   #服务器ip

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            proxy_pass http://127.0.0.1:8001;      #代理ip加端口
			proxy_set_header Host $host:$server_port;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        }

        #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;
        #}
    }

代理项目配置负载均衡

1. 创建两个项目，启动

@SpringBootApplication
@RestController
public class Nginx1Application {

    public static void main(String[] args) {
        SpringApplication.run(Nginx1Application.class, args);
    }

    @GetMapping("/hello")
    public String hello() {
        return "hello1";
    }
}

@SpringBootApplication
@RestController
public class Nginx2Application {

    public static void main(String[] args) {
        SpringApplication.run(Nginx2Application.class, args);
    }
    @GetMapping("/hello")
    public String hello() {
        return "hello2";
    }
}

2. 修改nginx配置文件

#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;
 
	#####添加这里#####
 
    #服务器集群
    upstream nginx.test.com{
        server 127.0.0.1:8001 weight=1;
        server 127.0.0.1:8002 weight=2;#可以在这里加权重
    }
 
	#################    
    
    server {
        listen       8081;    #监听端口
        server_name  localhost;
 
        #charset koi8-r;
 
        #access_log  logs/host.access.log  main;
 
        location / {
			############还有这里##########
 
            proxy_pass http://nginx.test.com; #name要和upstream的name 一致
            proxy_redirect default;
 
			##############################
            #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;
    #    }
    #}
 
}

3. hosts文件添加映射：127.0.0.1 nginx.test.com
4. 启动项目和nginx。
5. 访问:http://nginx.test.com:8081/hello hello1和hello2将按照权重配置进行访问。