tomcat相关实验

同主机实现

1、安装并启动tomcat 1)OpenJDK的安装 yum install java-1.8.0-openjdk-devel.x86_64 确定JDK是否安装可以使用如下命令 java -version ##可以看到版本,说明安装成功 2)tomcat安装 yum install tomcat tomcat-admin-webapps tomcat-docs-webapp tomcat-webapps service tomcat start ss -ntl 监听的端口有三个:8080为http协议的接口,8009为ajp协议的接口,8005为管理接口 2、安装nginx并配置 vim /etc/nginx/nginx.conf 在server段增加如下内容 root /usr/local/tomcat/webapps/ROOT; ##表示访问静态文件就访问nginx的这个目录,此目录是tomcat默认根目录。 index index.jsp; location ~* \.(jsp|do)$ { ##访问的是jsp或者do结尾的动态文件就调度到后端主机tomcat proxy_pass :8080; } nginx -t service nginx restart ##这里直接访问80端口就可以了看到tomcat默认主页面了 2.实现LAT

同主机(静态网页)

1、安装并启动tomcat 1)OpenJDK的安装 yum install java-1.8.0-openjdk-devel.x86_64 确定JDK是否安装可以使用如下命令 java -version ##可以看到版本,说明安装成功 2)tomcat安装 yum install tomcat tomcat-admin-webapps tomcat-docs-webapp tomcat-webapps service tomcat start ss -ntl 监听的端口有三个:8080为http协议的接口,8009为ajp协议的接口,8005为管理接口 2、安装httpd服务并确保有ajp_module和http_module httpd -M |grep "proxy" ##查看模块是否已经加载,如果没有加载,要在配置文件中加载这些模块 proxy_module (shared) proxy_ajp_module (shared) ##表示反向代理时后端服务器是aip协议 proxy_balancer_module (shared) proxy_connect_module (shared) proxy_express_module (shared) proxy_fcgi_module (shared) proxy_fdpass_module (shared) proxy_ftp_module (shared) proxy_http_module (shared) ##表示反向代理时后端主机时http协议 proxy_scgi_module (shared) proxy_wstunnel_module (shared) 3、与后端tomcat使用http协议连接时配置 vim /etc/httpd/conf.d/tomcat.conf <virtualhost *:80> documentroot "/usr/share/tomcat/webapps/ROOT" <directory "usr/local/tomcat/webapps/ROOT"> require all granted </directory> proxyrequests off ##关闭正向代理,不加可以 proxyvia on proxypreservehost on proxypass "http://www.likecs.com/" "http://127.0.0.1:8080/" proxypassreverse "http://www.likecs.com/" "http://127.0.0.1:8080/" </virtualhost> httpd -t systemctl start httpd 测试: 4、与后tomcat连接时使用的ajp协议时的配置 vim /etc/httpd/conf.d/tomcat.conf <virtualhost *:80> documentroot "/usr/local/tomcat/webapps/ROOT" <directory "usr/local/tomcat/webapps/ROOT"> require all granted </directory> proxyrequests off proxyvia on proxypreservehost on proxypass "http://www.likecs.com/" "ajp://127.0.0.1:8009/" proxypassreverse "http://www.likecs.com/" "ajp://127.0.0.1:8009/" </virtualhost> httpd -t systemctl reload httpd 5、测试 3.实现lnmt的zrlog博客搭建

环境:
A主机:tomcat,nginx,ip地址为192.168.213.251
B主机:数据库,ip地址为192.168.213.253

1)在A上操作 1、安装openjdk yum install java-1.8.0-openjdk-devel.x86_64 java -version ---确认是否安装成功 2、安装tomcat yum install tomcat tomcat-admin-webapps tomcat-docs-webapp tomcat-webapps systemctl start tomcat :8080 ##可以访问tomcat的默认网站 3、将zrlog放到tomcat的根目录下 mv app/zrlog-1.7.1-release.war /usr/share/tomcat/webapps systemctl restart tomcat ls ##发现文件被自动解开 docs host-manager manager zrlog-1.7.1-release examples logs ROOT zrlog-1.7.1-release.war [root@centos7 webapps]#ln -s zrlog-1.7.1-release zrlog 4、安装nginx并修改配置 vim /etc/nginx/nginx.conf 在server段增加如下内容 root /usr/local/tomcat/webapps; ##表示访问静态文件就访问nginx的这个目录,此目录是tomcat默认根目录。 index index.jsp; location / { ##访问的是jsp或者do结尾的动态文件就调度到后端主机tomcat,此处为本地 proxy_pass :8080; } nginx -t service nginx restart ##这里直接访问80端口就可以了看到tomcat默认主页面了 2)在B上的设置 安装数据库 yum install mariadb-server systemctl start mariadb mysql create database zrlog; grant all on zrlog.* to zrloguser@\'%\' identified by "centos"; 3)测试: 登录网站 4.实现nginx和httpd反代tomcat集群

环境
A:nginx和httpd:192.168.213.253
B:tomcat:192.168.213.251
C:tomcat:192.168.213.254

1》nginx反代 1、在B和C上的设置 mkdir -pv /usr/share/tomcat/webapps/myapp/WEB-INF vim /usr/share/tomcat/webapps/myapp/index.jsp <%@ page language="java" %> <%@ page language="java" %> <html> <head><title>TomcatA</title></head> <body> <h1><font color="red">TomcatA.com</font></h1> ##在C上将颜色改为green,Tomcat改为B <table> <tr> <td>Session ID</td> <% session.setAttribute("shen.com","shen.com"); %> <td><%= session.getId() %></td> </tr> <tr> <td>Created on</td> <td><%= session.getCreationTime() %></td> </tr> </table> </body> </html> :8080/myapp/ :8080/myapp/ 2、A上设置 vim /etc/nginx/nginx.conf 在http中配置 upstream tomcatsrv { server 192.168.213.251:8080 ; server 192.168.213.254:8080 ; } server { listen 80 default_server; listen [::]:80 default_server; index index.jsp ; root /usr/share/tomcat/webapps/app; location / { proxy_pass ; } service nginx restart 2》httpd反代 1、在B和C上的设置同上 2、在调度器上的设置 vim /etc/httpd/conf.d/tomcat.conf <proxy balancer://tomcatsrvs> ##定义一个后端服务器组 BalancerMember :8080 ##如果和后端服务器连接的协议为ajp协议,把http改为ajp并且把端口改为8009即可 BalancerMember :8080 ProxySet lbmethod=byrequests </proxy> namevirtualhost *:80 <VirtualHost *:80> documentroot /app <Directory /app> Require all granted </Directory> ProxyVia On ProxyRequests Off ProxyPass / balancer://tomcatsrvs/ ProxyPassReverse / balancer://tomcatsrvs/ </VirtualHost> httpd -t service httpd start httpd的负载集群功能具有健康状态检查功能 可以把后端的一个tomcat停掉 然后访问 会发现不往关闭的tomcat主机调度了 5.实现httpd和nginx的会话粘性绑定

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