springboot+nginx+https+linux實現負載均衡加域名訪問簡單測試

1. 把springboot項目打包成三個jar包，並指定端口為

   14341，14342，14343

2. 下載騰訊雲免費ssl證書，解壓后會出現如下圖文件夾

   

3. 把nginx文件夾下的 .crt 和 .key文件復制到服務器，例如復制到

   /home/ssl/xxx.crt
   /home/ssl/xxx.key

4. 安裝好nginx默認配置文件在

   /usr/local/nginx/conf/nginx.conf

5. 修改nginx.conf配置文件實現https+負載均衡的簡單測試（此測試是在一台服務器上面進行）

   worker_processes  1;
   
   events {
       worker_connections  1024;
   }
   
   http {
       include       mime.types;
       default_type  application/octet-stream;
   
       sendfile        on;
       keepalive_timeout  65;
   
       upstream paint {
           server 127.0.0.1:14341 weight=2;
   	    server 127.0.0.1:14342 weight=1;
   	    server 127.0.0.1:14343 weight=1;
       }
   
       server {
           listen       443 ssl;
           server_name  www.xxx.com xxx.com;
           ssl_certificate /home/ssl/xxx.crt;
           ssl_certificate_key /home/ssl/xxx.key;
           ssl_session_timeout 5m;
           ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
           ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE;
           ssl_prefer_server_ciphers on;
           location / {
               proxy_pass http://paint;
           }
       }
   
       server {
           listen       80;
           server_name  www.xxx.com xxx.com;
           rewrite  ^(.*)$  https://${server_name}$1  permanent;
       }
   }

6. 以上nginx.conf配置文件即可實現，理論上來說weight設置的數值越大，訪問到的機率就會越大
7. 在linux上后台運行第一步准備的jar包

   nohup java -jar xx01-0.0.1-SNAPSHOT.jar >/home/log/logs1.txt &
   nohup java -jar xx02-0.0.1-SNAPSHOT.jar >/home/log/logs2.txt &
   nohup java -jar xx03-0.0.1-SNAPSHOT.jar >/home/log/logs3.txt &

8. 查看后台運行的任務

   jobs