TOMCAT

Posted 2020-09-01

Tomcat--》java

#rpm -ivh jdkXXXXX
#tar -xf apache-tomcatXXXXX
#mv apache-tomcat /usr/local/tomcat
#ls /usr/local/tomcat

#/usr/local/tomcat/bin/catalin.sh start


Tomcat配置文件语法格式
<server>
   <service>
      <connector port=8080/>
      <connector port=8000/>
        <engine default=a>
          <host name=a> xx</host>
          <host name=b> xxx</host>
          <host name=c> xxx</host>
        </engine>
   </service>
</server>


实验1：虚拟主机
#vim /usr/local/tomcat/conf/server.xml
... ...
   <Host name="www.a.com"  appBase="a" unpackWARs="true" autoDeploy="true">
   </Host>
   <Host name="www.b.com"  appBase="b" unpackWARs="true" autoDeploy="true">
   </Host>
#cd /usr/local/tomcat
#mkdir -p {a,b}/ROOT
#echo "AA" > a/ROOT/index.html
#echo "BB" > b/ROOT/index.html
#/usr/local/tomcat/bin/catalina.sh stop
#/usr/local/tomcat/bin/catalina.sh start

客户端验证：
#vim /etc/hosts
192.168.2.100  www.a.com  www.b.com

#firefox http://www.a.com:8080
#firefox http://www.b.com:8080



++++++++++++++++++++++++

实验2:
    
#vim /usr/local/tomcat/conf/server.xml
... ...
   <Host name="www.a.com"  appBase="a" unpackWARs="true" autoDeploy="true">
  <Context path="" docBase="base" reloadable="true"/>
   </Host>
   <Host name="www.b.com"  appBase="b" unpackWARs="true" autoDeploy="true">
   </Host>
#cd /usr/local/tomcat
#mkdir a/base
#echo "base" > a/base/index.html

#/usr/local/tomcat/bin/catalina.sh stop
#/usr/local/tomcat/bin/catalina.sh start

 
appBase=a     网站根路径
docBase=XX    默认java项目
path=用户地址栏



+++++++++++++++++++++++++++
实验：tomcat加密网站

1.生成私钥证书文件
#keytool -genkeypair -alias tomcat -keyalg RSA -keystore /usr/local/tomcat/keystore
根据提示：输入密码，国家，单位，部门登信息

2.修改tomcat配置文件，启用加密功能
#vim /usr/local/tomcat/conf/server.xml
... ...
<Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"
maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
keystoreFile="/usr/local/tomcat/keystore" keystorePass="123456" clientAuth="false" sslProtocol="TLS" />
开启150个线程，启用加密功能，协议头部为https,证书文件为/usr/local/tomcat/keystore，证书文件的密码为123456

#/usr/local/tomcat/bin/catalina.sh stop
#/usr/local/tomcat/bin/catalina.sh start


客户端验证：
#firefox https://www.a.com:8443


+++++++++++++++++++++++++++++
tomcat进程优化:
#vim tomcat/conf/server.xml
... ...
<Connector port=“8080“
protocol="HTTP/1.1“
maxThreads="1000“
//最大线程数
minSpareThreads="100“
//最少空闲进程
maxSpareThreads="1000“
//最大空闲进程
enableLookups="false“
//不对客户端IP进行反向DNS解析
URIEncoding="utf-8“
//编码
acceptCount="1000“
//监听端口队列最大数
/>


调整Java虚拟机内存：
#vim /usr/local/tomcat/bin/catalina.sh

249行：添加如下内容jvm虚拟机的最小内存和最大内存修改为1024M
JAVA_OPTS="-Djava.awt.headless=true -Dfile.encoding=UTF-8 -server -Xms1024m -Xmx1024m"
--------------------------------------------------------------------------------------------------------------