1.web应用达成war包
通过命令行打war包:jar -cvf xxx.war xxx
因为放到webapps里电脑会自动识别，自动解压
2.relodeable="true" 自动下载新更新的web应用（web 应用大的话不建议配置，重新加载很烧）
<Host name="www.snowing.com" appBase="/Users/snowing/Downloads/snowing">
<Context path="" docBase="/Users/snowing/Downloads/snowing/1" relodeable="true"/>
</Host>
3.conf—》context.xml中配置的web应用被所有共享
如果加了relodeable="true"，这个tomcat下的所有web应用都会自动加载
4.Tomcat体系结构和配置https连接器
Tomcat是一个server
server 里service里有多个连接找到引擎，引擎里有多个主机，主机里配置了web应用
5.远程修改tomcat时可以用conf里tomcat-users.xml
<!--
NOTE: The sample user and role entries below are intended for use with the
examples web application. They are wrapped in a comment and thus are ignored
when reading this file. If you wish to configure these users for use with the
examples web application, do not forget to remove the <!.. ..> that surrounds
them. You will also need to set the passwords to something appropriate.
manager-gui - 允许访问HTML GUI和状态页
manager-script - 允许访问文本界面和状态页面
manager-jmx - 允许访问JMX代理和状态页面
manager-status - 只允许访问状态页
-->
<role rolename="tomcat"/>
<role rolename="role1"/>
<role rolename="manager-gui"/>
<role rolename="manager-jmx"/>
<role rolename="manager-status"/>
<role rolename="admin-script"/>
<role rolename="admin-gui"/>
<user username="manager-gui" password="xxxx" roles="manager-gui"/>
<user username="admin-gui" password="xxxxx" roles="admin-gui"/>
<user username="admin-script" password="xxxxx" roles="admin-script"/>
<user username="manager-jmx" password="xxxxxx" roles="manager-jmx"/>
<user username="manager-status" password="xxxxx" roles="manager-status"/>
<user username="both" password="xxxxxx" roles="tomcat,role1"/>
<user username="role1" password="xxxxxxx" roles="role1"/>