一个tomcat下部署不同端口多个应用 野性酷女 2021-06-24 15:59 509阅读 0赞 通过配置tmcat的server.xml来实现多端口多应用: <?xml version='1.0' encoding='utf-8'?> <Server port="8005" shutdown="SHUTDOWN"> <!-- Security listener. Documentation at /docs/config/listeners.html <Listener className="org.apache.catalina.security.SecurityListener" /> --> <!--APR library loader. Documentation at /docs/apr.html --> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html --> <Listener className="org.apache.catalina.core.JasperListener" /> <!-- Prevent memory leaks due to use of particular java/javax APIs--> <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" /> <GlobalNamingResources> <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> <Service name="Catalina"> <Connector port="8080" protocol="org.apache.coyote.http11.Http11AprProtocol" URIEncoding="UTF-8" enableLookups="false" acceptCount="500" connectionTimeout="5000" disableUploadTimeout="true" maxThreads="1500" maxSpareThreads="50" minSpareThreads="25" 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="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"> <Context docBase="/data/java/appstore-api" path="/" reloadable="false" /> </Host> </Engine> </Service> <Service name="web"> <Connector port="8088" protocol="HTTP/1.1" maxThreads="700" acceptCount="100" connectionTimeout="2000" redirectPort="8445" URIEncoding="UTF-8"/> <Engine name="web" defaultHost="localhost"> <Host name="localhost" appBase="webapp1"> <Context docBase="/data/java/appstore-web" path="" reloadable="true" /> </Host> </Engine> </Service> <Service name="web2"> <Connector port="8089" protocol="HTTP/1.1" maxThreads="700" acceptCount="100" connectionTimeout="2000" redirectPort="8445" URIEncoding="UTF-8"/> <Engine name="web2" defaultHost="localhost"> <Host name="localhost" appBase="webapp2"> <Context docBase="/data/java/appstore-web2" path="" reloadable="true" /> </Host> </Engine> </Service> </Server> 1、按照上面的配置,启动tomcat,可以发现: 1)启动tomcat后,在tomcat配置目录:/usr/local/tomcat/conf下,除了默认的Catalina文件夹外,还会生成web1和web2两个文件夹。原因是Engine组件中,指定了所用的web1和web2。当然,我们可以将不同service组件的Engine name都指定成Catalina。 2)启动tomcat后,在tomcat目录:/usr/local/tomcat下,除了默认的webapps文件夹外,还会生成webapp1和webapp2两个目录。原因是Host组件中,指定了appBase伟webapp1和webapp2.当然,我们可以将不同service组件的Host appBase指定成默认的webapps。 2、配置说明: 1)appBase是虚拟主机存放webapp的目录,它可以是相对路径,也可以是绝对路径。如果是相对路径,则相对于$CATALINA\_HOME,严格并准确地说是CATALINA\_BASE。 2)**path是URI的匹配路径**,相当于nginx的location后的路径。tomcat要求每个虚拟主机必须配置一个空字符串的path,该条context作为URI无法被明确匹配时的默认context,它相当于nginx中location / \{\}的作用。 3)**docBase则是每个webapp的存放目录(或者是已归档的war文件)**,它可以是相对路径,也可以是绝对路径,提供相对路径时它相对于appBase。该目录一般在appBase的目录下,但并不规定一定要放在appBase下。对于web服务来说,它相当于nginx的root指令,但对于webapp来说,一个context就相当于一个webapp,而docBase正是webapp的路径。 3、注意: 1)如果多个项目都用了spring框架,那么在配置成一个tomcat多端口多应用时,可能会报错: 13-Apr-2018 12:52:08.716 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class org.springframework.web.util.Log4jConfigListener java.lang.IllegalStateException: Web app root system property already set to different value: 'webapp.root' = [/data/ttbrain-log-admin/] instead of [/data/Disu/] - Choose unique values for the 'webAppRootKey' context-param in your web.xml files! at org.springframework.web.util.WebUtils.setWebAppRootSystemProperty(WebUtils.java:151) at org.springframework.web.util.Log4jWebConfigurer.initLogging(Log4jWebConfigurer.java:116) at org.springframework.web.util.Log4jConfigListener.contextInitialized(Log4jConfigListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4727) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5189) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) 原因是:部署在同一容器中的Web项目,要配置不同的<param-value>,不能重复,否则就会报上面类似的错误。 2)解决方法:在web.xml中加上: <context-param> <param-name>webAppRootKey</param-name> <param-value>webapp.root</param-value> </context-param> "webapp.root"这个字符串可以随便写任何字符串。如果不配置默认值是"webapp.root"。可以用System.getProperty("webapp.root")来动态获项目的运行路径。 3)加载方式: Spring通过org.springframework.web.util.WebAppRootListener 这个监听器来运行时的项目路径。但是如果在web.xml中已经配置了 org.springframework.web.util.Log4jConfigListener这个监听器,则不需要配置WebAppRootListener了。因为Log4jConfigListener已经包含了WebAppRootListener的功能 一般配置类型下面的例子: <!-- 加载Log4J 配置文件 --> <context-param> <param-name>log4jConfigLocation</param-name> <param-value>WEB-INF/conf/log4j.properties</param-value> </context-param> <context-param> <param-name>log4jRefreshInterval</param-name> <param-value>3000</param-value> </context-param> <listener> <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> </listener> 在log4j.properties配置文件,就可以按下面的方式使用$\{webapp.root\}:log4j.appender.file.File=$\{webapp.root\}/WEB-INF/logs/sample.log 就可以在运行时动态的找出项目的路径 参考:https://www.cnblogs.com/f-ck-need-u/p/8120008.html
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