jdk的安装与nignx的安装

毕业设计——系统部署（二）

一、修改服务器主机名

hostnamectl set-hostname hyh

重启后生效

二、安装jdk

1.卸载系统自带jdk

因为centos自带openjdk，我们较为常用的是oracle jdk所以先卸载自带jdk

• 查看系统自带java

  • java -version
  • 

• 查看系统中系统中的openjdk套件

  • rpm -qa | grep java
  • 

• 卸载openjdk套件，noarch无需处理

  • rpm -e --nodeps java-1.7.0-openjdk-headless-1.7.0.261-2.6.22.2.el7_8.x86_64
    rpm -e --nodeps java-1.8.0-openjdk-headless-1.8.0.272.b10-1.el7_9.x86_64
    rpm -e --nodeps java-1.8.0-openjdk-1.8.0.272.b10-1.el7_9.x86_64
    rpm -e --nodeps java-1.7.0-openjdk-1.7.0.261-2.6.22.2.el7_8.x86_64
    

2.下载JDK

• 地址：https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html

  

• 下载需要oracle账号，请自己注册。下载后的文件，可使用图形界面点击下载，也可以使用wget下载

​ 目录将存在于当前用户home目录下的download文件夹中

3.安装JDK

• 将文件移动到/usr/java

  cp jdk-8u271-linux-x64.tar.gz /usr/java
  

• 解压jdk

  • 右键图形解压

    tar -xvf jdk-8u271-linux-x64.tar.gz
    

  • 

• 配置环境变量

  • 打开环境变量文件 gedit /etc/profile

  • 在文件的末尾添加图下代码

    export JAVA_HOME=/usr/java/jdk1.8.0_271
    export PATH=$PATH:$JAVA_HOME/bin
    

• 使配置文件生效

  source /etc/profile
  

• 验证jdk

  java -version
  

  

三、安装nginx

1.安装环境

• 安装gcc，用于编译nignx源码

 yum install gcc-c++

• 安装pcre-devel ，nginx 的 http 模块使用 pcre 来解析正则表达式

yum install -y pcre pcre-devel 

• 安装zlib，nginx 使用zlib对http包的内容进行gzip

yum install -y zlib zlib-devel 

• 安装OpenSSL ，nignx中配置 https需要使用

yum install -y openssl openssl-devel

2.下载nignx

• 1.官网下载 http://nginx.org/en/download.html 下载stable版本

• 2.代码下载

  wget -c https://nginx.org/download/nginx-1.18.0.tar.gz
  

3.安装nignx

• 根目录使用ls命令可以看到下载的nginx压缩包，然后解压

tar -zxvf nginx-1.16.1.tar.gz 

• 解压后进入目录

cd nginx-1.18.0 

• 使用默认配置

./configure 

• 编译安装

make

make install

• 查找安装路径，默认都是这个路径

whereis nginx 

• 启动、停止nginx

cd /usr/local/nginx/sbin/ 
./nginx     #启动 
./nginx -s stop  #停止nginx，kill命令强制杀掉nginx进程 
./nginx -s quit  #停止并退出nginx，等待nginx进程处理完任务再进行停止
./nginx -s reload  #重新加载配置文件，修改nginx.conf后使用该命令，新配置即可生效

• 此处可以设置全局变量

  • 编辑/etc/profile

  • vim /etc/profile
    

• 在最后一行添加配置，:wq保存

  • PATH=$PATH:/usr/local/nginx/sbin
    export PATH
    

• 使配置立即生效

  • source /etc/profile
    

• 命令可以变成

nginx
nginx -s stop
nginx -s quit
nginx -s reload

• 重启nginx，建议先停止，再启动

nginx -s stop 
nginx 

• 查看nginx进程，如下返回，即为成功

ps aux|grep nginx

4.开机启动nginx

• 进入到/lib/systemd/system/目录

  cd /lib/systemd/system/
  

• 第二步：创建nginx.service文件，并编辑

  gedit nginx.service
  

  文件内容

  [Unit]
  Description=nginx service
  After=network.target 
     
  [Service] 
  Type=forking 
  ExecStart=/usr/local/nginx/sbin/nginx
  ExecReload=/usr/local/nginx/sbin/nginx -s reload
  ExecStop=/usr/local/nginx/sbin/nginx -s quit
  PrivateTmp=true 
     
  [Install] 
  WantedBy=multi-user.target
  

• 第三步：加入开机自启动

  systemctl enable nginx
  

附：nginx配置文件

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    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  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;
	
    client_header_buffer_size 10240k;
    large_client_header_buffers 6 10240k;


    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
        listen       8088;
        server_name  www.xxxx.tech;
	  rewrite ^(.*)$ https://$server_name$1 permanent;
    }

# Settings for a TLS enabled server.
#
#    server {
#        listen       443 ssl http2 default_server;
#        listen       [::]:443 ssl http2 default_server;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        ssl_certificate "/etc/pki/nginx/server.crt";
#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
#        ssl_session_cache shared:SSL:1m;
#        ssl_session_timeout  10m;
#        ssl_ciphers HIGH:!aNULL:!MD5;
#        ssl_prefer_server_ciphers on;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        location / {
#        }
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

server {
        listen       443 ssl;
        server_name  www.xxxx.tech;
	  root	/usr/share/nginx/dist;

        ssl_certificate "/etc/nginx/key/1_www.xxxx.tech_bundle.crt";
        ssl_certificate_key "/etc/nginx/key/2_www.xxxx.tech.key";
        ssl_session_cache shared:SSL:1m;
        ssl_session_timeout  10m;
        ssl_ciphers HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers on;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

	  

        location / {
		try_files  $uri $uri/ /index.html;
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }

}