TOMCAT------>web资源访问

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"/>