JAVA高级面试进阶训练营视频教程

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使用ant对tomcat中的网站进行部署和更新，简单的方案就是把webapps下对应的目录和war文件删除，然后复制进新的war就可以了。

还有一种方案就是使用tomcat中提供的catalina-ant.jar里面提供了ant操作tomcat的一些操作

首先要在tomcat-users.xml 保证你有manager-scrpit的权限，注意不是manager-gui(因为这个权限对跨站攻击进行了保护，使用ANT访问会出现403错误)

然后你需要一个tomcatTasks.properties文件，内容如下(注意每行的结尾没有任何空格)

   1: deploy=org.apache.catalina.ant.DeployTask

   2: undeploy=org.apache.catalina.ant.UndeployTask

   3: reload=org.apache.catalina.ant.ReloadTask

   4: start=org.apache.catalina.ant.StartTask

   5: stop=org.apache.catalina.ant.StopTask

   6: list=org.apache.catalina.ant.ListTask

然后在你的配置文件中加入以下内容

   1: <path id="catalina-ant-classpath">

   2:     <fileset dir="${tomcat.home}/lib">

   3:         <include name="catalina-ant.jar"/>

   4:         <include name="tomcat-coyote.jar"/>

   5:         <include name="tomcat-util.jar"/>

   6:     </fileset>

   7:     <fileset dir="${tomcat.home}/bin">

   8:                 <include name="tomcat-juli.jar"/>

   9:     </fileset>

  10: </path>

  11:  

  12: <taskdef file="tomcatTasks.properties">

  13:     <classpath refid="catalina-ant-classpath"/>

  14: </taskdef>

还有几个属性需要设置，大家自己完善其中需要注意的是tomcat.manager.url，可以参考下面

   1: tomcat.manager.url=http://127.0.0.1:8080/manager/text

这样就可以参考以下代码，使用tomcat的API操作tomcat了

   1: <target name="install" description="Install application in Tomcat" depends="packWar">

   2:         <deploy url="${tomcat.manager.url}" 

   3:                 username="${tomcat.manager.username}" 

   4:                 password="${tomcat.manager.password}" 

   5:                 path="/${webapp.name}" war="${warFilePath}" />

   6:     </target>

   7:  

   8:     <target name="remove" description="Remove application from Tomcat">

   9:         <undeploy url="${tomcat.manager.url}" 

  10:                     username="${tomcat.manager.username}" 

  11:                     password="${tomcat.manager.password}" 

  12:                     path="/${webapp.name}" />

  13:     </target>

  14:  

  15:     <target name="reload" description="Reload application in Tomcat">

  16:         <reload url="${tomcat.manager.url}" 

  17:                 username="${tomcat.manager.username}" 

  18:                 password="${tomcat.manager.password}" 

  19:                 path="/${webapp.name}" />

  20:     </target>

  21:  

  22:     <target name="start" description="Start Tomcat application">

  23:         <start url="${tomcat.manager.url}" 

  24:                 username="${tomcat.manager.username}" 

  25:                 password="${tomcat.manager.password}" 

  26:                 path="/${webapp.name}" />

  27:     </target>

  28:  

  29:     <target name="stop" description="Stop Tomcat application">

  30:         <stop url="${tomcat.manager.url}" 

  31:                 username="${tomcat.manager.username}" 

  32:                 password="${tomcat.manager.password}" 

  33:                 path="/${webapp.name}" />

  34:     </target>

  35:  

  36:     <target name="list" description="List Tomcat applications">

  37:         <list url="${tomcat.manager.url}" 

  38:             username="${tomcat.manager.username}" 

  39:             password="${tomcat.manager.password}" />

  40:     </target>

 

但是

windows下的tomcat7会因为内存泄露的问题而有时候文件删除不掉（使用catalina-ant也会undeploy失败）！！！

比较极限的解决方案是是关闭tomcat，删除文件后在重启。相应的ant配置如下

   1: <target name="stop_tomcat">  

   2:     <echo>停止tomcat</echo>  

   3:     <exec executable="cmd" dir="${tomcat.home}/bin" failonerror="false"   

   4:                 output="${log.file}" append="true" >   

   5:         <env key="CATALINA_HOME" path="${tomcat.home}"/>  

   6:         <arg value="/c shutdown.bat" />     

   7:     </exec>  

   8: </target>  

   9:   

  10: <target name="start_tomcat">  

  11:     <echo>启动tomcat</echo>  

  12:     <exec executable="cmd" dir="${tomcat.home}/bin"  failonerror="false"   

  13:                 output="${log.file}" append="true" >    

  14:          <env key="CATALINA_HOME" path="${tomcat.home}"/>  

  15:          <arg value="/c startup.bat" />     

  16:     </exec>  

  17: </target>  

还有一个比较好的做法是修改tomcat的配置修改conf/context.xml中的内容修改成

   1: <Context antiResourceLocking="true">