tomcat加载外部项目

一般的项目都是放到webapps下的，我们这里做一个外部配置

<?xml version='1.0' encoding='utf-8'?>
<Server port="2001" shutdown="SHUTDOWN">
<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <Listener className="org.apache.catalina.core.JasperListener" />
  <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"
              />
  </GlobalNamingResources>
  <Service name="Catalina">
  
    <Connector port="8081" protocol="HTTP/1.1"
               connectionTimeout="20000"
        maxThreads="3000" 
        maxPostSize="-1" 
        maxHttpHeaderSize ="102400" 
               minSpareThreads="250" 
               acceptCount="2000" 
               enableLookups="false" 
               compression="on" 
               URIEncoding="UTF-8"
               compressionMinSize="2048" 
               noCompressionUserAgents="gozilla,traviata" 
               compressableMimeType="text/html,text/xml,text/css,text/plain,text/javascript,application/x-javascript,application/javascript" 
               />
               
    <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"
                xmlValidation="false" 
                xmlNamespaceAware="false">

                <Context 
                    path=""  //这里放空就行
                    docBase="/data/rs" //项目路径，可以写绝对，也可以写相对，相对的自己更具自己的项目位置修改
                    allowLinking="true" 
                    reloadable="false"
                    privileged="true" >
                </Context>
<!--        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log." suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" /> -->

      </Host>
    </Engine>
  </Service>
</Server>

如果启动出现问题
java.lang.IllegalStateException:ContainerBase.addChild:start:org.apache.catalina.Life， ContainerBase.addChild: start: 
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].
StandardContext[]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at 
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
atorg.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at
 org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1090)
at
 org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1900)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at
 java.util.concurrent.FutureTask.run(FutureTask.java:262)

org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina

解决方法：
　更改tomcat配置文件catalina.properties。
  tomcat.util.scan.DefaultJarScanner.jarsToSkip= 值后面加",*"


启动界面乱码
修改日志配置文件logging.properties中的控制台编码

java.util.logging.ConsoleHandler.level = FINE
java.util.logging.ConsoleHandler.formatter = org.apache.juli.OneLineFormatter
java.util.logging.ConsoleHandler.encoding = GBK