tomcat单机多实例

        需求是： 同一个tomcat服务下，可以访问多个域名。

        先来看看tomcat配置文件server.xml的结构

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<Server>
    <Service name=”xxx”>
        <Host  name=”aaa.com” appBase=”dir1″>
        </Host>
    </Service>
<Server>

        说明：

        Service下面可以定义监听的端口，包含了，而里面定义虚拟主机，即，定义站点的域名和站点的目录。

        两种方案：

  1. 可以在里面定义多个，这样就定义了多个站点，但端口不能变。

  2. 可以在里面定义多个，里再定义，这样做的好处是，可以更改监听端口。

        假设需求为：

        同一个服务器上跑两个站点

        www.aaa.com 监听端口是8080

        www.bbb.com 监听端口是8081

        配置文件内容为：

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<GlobalNamingResources>
<!– Editable user database that can also be used by
UserDatabaseRealm to authenticate users
–>
<Resource name=”UserDatabase” auth=”Container”
type=”org.apache.catalina.UserDatabase”
description=”User database that can be updated and saved”
factory=”org.apache.catalina.users.MemoryUserDatabaseFactory”
pathname=”conf/tomcat-users.xml” />
</GlobalNamingResources>
<!– A “Service” is a collection of one or more “Connectors” that share
a single “Container” Note: A “Service” is not itself a “Container”,
so you may not define subcomponents such as “Valves” at this level.
Documentation at /docs/config/service.html
–>
<Service name=”Catalina”>
<Connector port=”8080″ protocol=”HTTP/1.1″
connectionTimeout=”20000″
redirectPort=”8443″ />
<Connector port=”8009″ protocol=”AJP/1.3″ redirectPort=”8443″ />
<Engine name=”Catalina” defaultHost=”localhost”>
<Realm className=”org.apache.catalina.realm.LockOutRealm”>
<Realm className=”org.apache.catalina.realm.UserDatabaseRealm”
resourceName=”UserDatabase”/>
</Realm>
<Host name=”www.aaa.com” appBase=”webapps”
unpackWARs=”true” autoDeploy=”true”>
<Valve className=”org.apache.catalina.valves.AccessLogValve” directory=”logs”
prefix=”aaa.com_access” suffix=”.log”
pattern=”%h %l %u %t &quot;%r&quot; %s %b” />
</Host>
</Engine>
</Service>
<Service name=”aming”>
<Connector port=”8081″ protocol=”HTTP/1.1″
connectionTimeout=”20000″
redirectPort=”8443″ />
<Engine name=”aming” defaultHost=”localhost”>
<Realm className=”org.apache.catalina.realm.LockOutRealm”>
<Realm className=”org.apache.catalina.realm.UserDatabaseRealm”
resourceName=”UserDatabase”/>
</Realm>
<Host name=”www.bbb.com” appBase=”/data/tomcat”
unpackWARs=”true” autoDeploy=”true”>
<Valve className=”org.apache.catalina.valves.AccessLogValve” directory=”logs”
prefix=”bbb.com_access” suffix=”.log”
pattern=”%h %l %u %t &quot;%r&quot; %s %b” />
</Host>
</Engine>
</Service>
</Server>