CentOS7安装javaJdk1.8、部署多台tomcat

一：安装JDK

1. 去oracle官网下载liunx版jdk1.8

2.进入java目录

[root@iZwz91nfqrmmcjz3ax4vqvZ ~]# cd /usr/java

上传文件，解压文件 创建软链接 

[root@iZwz91nfqrmmcjz3ax4vqvZ java]# tar -zxvf jdk-8u111-linux-x64.tar.gz

[root@iZwz91nfqrmmcjz3ax4vqvZ java]# ls -n /usr/java/jdk1.8.0_111 /usr/java/latestjdk

3. 配置环境 打开etc/profile文件

[root@iZwz91nfqrmmcjz3ax4vqvZ java]# vi /etc/profile

安i进入编辑

JAVA_HOME=/usr/java/jdk/latestjdk
JAVA_BIN=$JAVA_HOME/bin
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
CLASSPATH=$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib/dt.jar
export JAVA_HOME JRE_HOME PATH CLASSPATH

 按 Esc 键、输入 :wq 回车，保持并退出。

启用新的配置

[root@iZwz91nfqrmmcjz3ax4vqvZ java]# source /etc/profile

查看JDK版本

[root@iZwz91nfqrmmcjz3ax4vqvZ java]# java -version

 java
version "1.8.0_91"
 Java(TM) SE Runtime Environment (build 1.8.0_91-b14)
 Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode)

二：安装多台tomcat

本次这里配置3台Tomcat，请求通过nginx处理进入
2.1  上传tomcat包，解压 ，本次是tomcat7

[root@iZwz91nfqrmmcjz3ax4vqvZ ~]# cd /usr/java
[root@iZwz91nfqrmmcjz3ax4vqvZ java]# tar -zxvf apache-tomcat-7.0.73.tar.gz
[root@iZwz91nfqrmmcjz3ax4vqvZ java]# mv /usr/java/apache-tomcat-7.0.73   /usr/java/tomcat-job-server
[root@iZwz91nfqrmmcjz3ax4vqvZ java]# tar -zxvf apache-tomcat-7.0.73.tar.gz
[root@iZwz91nfqrmmcjz3ax4vqvZ java]# mv /usr/java/apache-tomcat-7.0.73   /usr/java/tomcat-job-c
[root@iZwz91nfqrmmcjz3ax4vqvZ java]# tar -zxvf apache-tomcat-7.0.73.tar.gz
mv /usr/java/apache-tomcat-7.0.73   /usr/java/tomcat-job-b
2.2 修改3个tomcat的配置文件
8080那个tomcat配置文件不用修改
[root@iZwz91nfqrmmcjz3ax4vqvZ java]# cd tomcat-job-c/conf/
[root@iZwz91nfqrmmcjz3ax4vqvZ conf]# vi server.xml

<Serverport="9005"shutdown="SHUTDOWN">　端口：8005->9005

<Connectorport="9080"maxHttpHeaderSize="8192"端口：8080->8081

maxThreads="150"minSpareThreads="25"maxSpareThreads="75"

enableLookups="false"redirectPort="8443"acceptCount="100"

connectionTimeout="20000"disableUploadTimeout="true"/>

<Connectorport="9009"端口：8009->9009

enableLookups="false"redirectPort="8443"protocol="AJP/1.3"/>

[root@iZwz91nfqrmmcjz3ax4vqvZ conf]# cd /usr/java/tomcat-job-b/conf/
[root@iZwz91nfqrmmcjz3ax4vqvZ conf]# vi server.xml

<Serverport="9005"shutdown="SHUTDOWN">　端口：8005->9006

<Connectorport="9080"maxHttpHeaderSize="8192"端口：8080->8082

maxThreads="150"minSpareThreads="25"maxSpareThreads="75"

enableLookups="false"redirectPort="8443"acceptCount="100"

connectionTimeout="20000"disableUploadTimeout="true"/>

<Connectorport="9009"端口：8009->9010

enableLookups="false"redirectPort="8443"protocol="AJP/1.3"/>

关闭防火墙
[root@iZwz91nfqrmmcjz3ax4vqvZ ~]# chkconfig  iptables off

2.3 启动每个tomcat

[root@iZwz91nfqrmmcjz3ax4vqvZ ~]# cd /usr/java/tomcat-job-server/bin
[root@iZwz91nfqrmmcjz3ax4vqvZ bin]# ./startup.sh
Using CATALINA_BASE:   /usr/java/tomcat-job-server
Using CATALINA_HOME:   /usr/java/tomcat-job-server
Using CATALINA_TMPDIR: /usr/java/tomcat-job-server/temp
Using JRE_HOME:        /usr/java/latestjdk
Using CLASSPATH:       /usr/java/tomcat-job-server/bin/bootstrap.jar:/usr/java/tomcat-job-server/bin/tomcat-juli.jar
Tomcat started.
[root@iZwz91nfqrmmcjz3ax4vqvZ bin]# cd /usr/java/tomcat-job-c/bin
[root@iZwz91nfqrmmcjz3ax4vqvZ bin]# ./startup.sh
Using CATALINA_BASE:   /usr/java/tomcat-job-c
Using CATALINA_HOME:   /usr/java/tomcat-job-c
Using CATALINA_TMPDIR: /usr/java/tomcat-job-c/temp
Using JRE_HOME:        /usr/java/latestjdk
Using CLASSPATH:       /usr/java/tomcat-job-c/bin/bootstrap.jar:/usr/java/tomcat-job-c/bin/tomcat-juli.jar
Tomcat started.
[root@iZwz91nfqrmmcjz3ax4vqvZ bin]# cd /usr/java/tomcat-job-c/bin
[root@iZwz91nfqrmmcjz3ax4vqvZ bin]# ./startup.sh
Using CATALINA_BASE:   /usr/java/tomcat-job-c
Using CATALINA_HOME:   /usr/java/tomcat-job-c
Using CATALINA_TMPDIR: /usr/java/tomcat-job-c/temp
Using JRE_HOME:        /usr/java/latestjdk
Using CLASSPATH:       /usr/java/tomcat-job-c/bin/bootstrap.jar:/usr/java/tomcat-job-c/bin/tomcat-juli.jar
Tomcat started.
[root@iZwz91nfqrmmcjz3ax4vqvZ bin]#

访问http://xxx.xxx.xxx.xxx:端口号   出现下面界面就成功了
http://120.77.213.193:8081/
3.通过nginx方向代理

[root@iZwz91nfqrmmcjz3ax4vqvZ bin]# cd /usr/java/nginx/conf/
[root@iZwz91nfqrmmcjz3ax4vqvZ conf]# vi nginx.conf

http{
加入：

server_tokens	 off;

proxy_connect_timeout 10;
proxy_read_timeout 180;
proxy_send_timeout 5;
proxy_buffer_size 16k;
proxy_buffers 4 64k;
proxy_busy_buffers_size 128k;
proxy_temp_file_write_size 128k;

client_header_buffer_size 256k;
large_client_header_buffers 4 256k;

#启动GZIP压缩CSS和JS
gzip on;
# 压缩级别 1-9,默认是1，级别越高压缩率越大，当然压缩时间也就越长
gzip_comp_level 5;
gzip_min_length  1100;
# 压缩类型
gzip_types text/plain application/x-javascript application/json text/javascript text/css;

upstream job_server_http {
server 127.0.0.1:8080;
}

upstream job_c_http {
server 127.0.0.1:8081;
}

upstream job_b_http {
server 127.0.0.1:8082;
}

server:{
//加入:
location ^~ /joinf-job-c  {

            proxy_redirect         off;

            proxy_set_header       Host $host;

            proxy_set_header  X-Real-IP  $remote_addr;

            proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;

            proxy_pass      http://job_c_http;

            root   html;

            index  index.html index.htm;

        }

location ^~ /joinf-job-b  {

            proxy_redirect         off;

            proxy_set_header       Host $host;

            proxy_set_header  X-Real-IP  $remote_addr;

            proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;

            proxy_pass      http://job_b_http;

            root   html;

            index  index.html index.htm;

        }
}
}

重启nginx

[root@iZwz91nfqrmmcjz3ax4vqvZ bin]#  /usr/java/nginx/sbin/nginx -s reload

测试
原来：http://120.77.213.193:8081/joinf-job-c

现在：http://120.77.213.193/joinf-job-c       效果一样