今天研究對象是Ant，用于對msms系統(tǒng)進行Tomcat的自動部署。
遇到一個怪問題，百思不得其解：
通過ant depoly可以把msms.war部署到tomcat上。當然，要求這時候webapps下面沒有msms目錄。
看tomcat的紀錄，加載msms.war正常，網頁也可以打開。
通過ant undeploy，可以把msms卸載。Tomcat顯示：
Undeploying context [/msms]
正常卸載了。問題是，去看webapps目錄下面，居然有一個msms目錄的殘骸，里面保留的目錄是
WEB-INF\lib
有以下幾個文件殘留著：
commons-digester.jar
commons-validator.jar
struts.jar
這時候msms目錄也無法手工刪除，必須停掉tomcat后才能刪除。
我裝的tomcat是5.5。不知道是否還有人遇到過這種情況，我反正是暈了。
build.properties文件如下：
tomcat.dir=C:/ApacheGroup/Tomcat5.5
tomcat.webapps=C:/ApacheGroup/Tomcat5.5/webapps
tomcat.manager.url=http://localhost:8080/manager
tomcat.manager.username=admin
tomcat.manager.password=xxxxxxxx
build.xml文件如下：
<?xml version="1.0"?>
<project name="msms" default="compile" basedir=".">
??? <!-- Ant Tomcat Task Definition -->
??? <taskdef name="deploy" classname="org.apache.catalina.ant.DeployTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <taskdef name="undeploy" classname="org.apache.catalina.ant.UndeployTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <taskdef name="install" classname="org.apache.catalina.ant.InstallTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <taskdef name="reload" classname="org.apache.catalina.ant.ReloadTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <taskdef name="list" classname="org.apache.catalina.ant.ListTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <taskdef name="start" classname="org.apache.catalina.ant.StartTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <taskdef name="stop" classname="org.apache.catalina.ant.StopTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <property name="build" value="build" />
??? <property name="dist" value="dist" />
??? <property name="src" value="src/java" />
??? <property name="test" value="src/test" />
??? <property name="war-config" value="src/config" />
??? <property name="report" value="report" />
??? <property name="lib" value="lib" />
??? <property name="web" value="web" />
??? <property name="meta" value="meta" />
??? <property name="context-path" value="${ant.project.name}" />
??? <property file="build.properties" />
??? <path id="build.classpath">
??? ??? <fileset file="${lib}/*.jar" />
??? ??? <fileset dir="${tomcat.dir}/common/lib">
??? ??? ??? <include name="*.jar" />
??? ??? </fileset>
??? ??? <fileset dir="${tomcat.dir}/common/endorsed">
??? ??? ??? <include name="*.jar" />
??? ??? </fileset>
??? ??? <pathelement path="${build}" />
??? </path>
??? <!-- Hibernate Tool Task Definition -->
??? <taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="build.classpath" />
???
??? <target name="clean">
??? ??? <echo message="Cleaning up the build and dist directories" />
??? ??? <delete dir="${build}" />
??? ??? <mkdir dir="${build}" />
??? ??? <delete dir="${dist}" />
??? ??? <mkdir dir="${dist}" />
??? </target>
??? <target name="copy-resources">
??? ??? <copy todir="${build}">
??? ??? ??? <fileset dir="${src}">
??? ??? ??? ??? <exclude name="**/*.java" />
??? ??? ??? ??? <exclude name="**/*.hbm.xml" />
??? ??? ??? </fileset>
??? ??? </copy>
??? </target>
??? <target name="compile" depends="copy-resources">
??? ??? <javac destdir="${build}" srcdir="${src}:${test}">
??? ??? ??? <classpath refid="build.classpath" />
??? ??? </javac>
??? </target>
??? <target name="initdb" depends="compile">
??? ??? <hibernatetool destdir="${build}">
??? ??? ??? <classpath>
??? ??? ??? ??? <path location="${build}" />
??? ??? ??? </classpath>
??? ??? ??? <annotationconfiguration configurationfile="src/java/hibernate.cfg.xml" />
??? ??? ??? <hbm2ddl create="true" />
??? ??? </hibernatetool>
??? </target>
??? <target name="run" depends="compile">
??? ??? <java fork="true" classname="cn.ac.rcpa.msms.tools.ProjectManager" classpathref="build.classpath">
??? ??? ??? <classpath path="${build}" />
??? ??? ??? <arg value="${action}" />
??? ??? ??? <arg value="${project}" />
??? ??? ??? <arg value="${description}" />
??? ??? </java>
??? </target>
??? <target name="test" depends="compile" description="run junit test">
??? ??? <delete dir="${report}" />
??? ??? <mkdir dir="${report}" />
??? ??? <junit dir="." fork="true" printsummary="on" haltonfailure="false" failureproperty="tests.failed" showoutput="true">
??? ??? ??? <classpath refid="build.classpath" />
??? ??? ??? <formatter type="brief" />
??? ??? ??? <batchtest todir="${report}">
??? ??? ??? ??? <fileset dir="${build}">
??? ??? ??? ??? ??? <include name="**/*Test.*" />
??? ??? ??? ??? ??? <include name="**/Test*.*" />
??? ??? ??? ??? </fileset>
??? ??? ??? </batchtest>
??? ??? </junit>
??? ??? <fail if="tests.failed">
????? ***********************************************************
????? **** One or more tests failed! Check the output ... ****
????? ***********************************************************
??? </fail>
??? </target>
??? <target name="create-war" depends="clean, compile" description="build release war">
??? ??? <echo message="creation the WAR file...${context-path}.war" />
??? ??? <war destfile="${dist}/${context-path}.war" webxml="${meta}/web.xml">
??? ??? ??? <classes dir="${build}">
??? ??? ??? ??? <exclude name="**/*Test.*" />
??? ??? ??? ??? <exclude name="**/Test*.*" />
??? ??? ??? ??? <exclude name="hibernate.cfg.xml" />
??? ??? ??? </classes>
??? ??? ??? <lib dir="${lib}" />
??? ??? ??? <fileset dir="${web}" />
??? ??? ??? <zipfileset dir="${war-config}" prefix="WEB-INF/classes" />
??? ??? </war>
??? ??? <!--??? ??? <scp file="${dist}/${context-path}.war" todir="root:${password}@172.16.1.20:/usr/local/tomcat/webapps" trust="true" /> -->
??? </target>
??? <target name="deploy" description="Install application in Tomcat">
??? ??? <deploy url="${tomcat.manager.url}" username="${tomcat.manager.username}" password="${tomcat.manager.password}" path="/${context-path}" localWar="file:${dist}/${context-path}.war" />
??? </target>
??? <target name="undeploy" description="Remove application in Tomcat" if="already.deployed">
??? ??? <undeploy url="${tomcat.manager.url}" username="${tomcat.manager.username}" password="${tomcat.manager.password}" path="/${context-path}" />
??? </target>
??? <target name="reload" description="Reload application in Tomcat">
??? ??? <reload url="${tomcat.manager.url}" username="${tomcat.manager.username}" password="${tomcat.manager.password}" path="/${context-path}" />
??? </target>
??? <target name="start" description="Start Tomcat application">
??? ??? <start url="${tomcat.manager.url}" username="${tomcat.manager.username}" password="${tomcat.manager.password}" path="/${context-path}" />
??? </target>
??? <target name="stop" description="Stop Tomcat application">
??? ??? <stop url="${tomcat.manager.url}" username="${tomcat.manager.username}" password="${tomcat.manager.password}" path="/${context-path}" />
??? </target>
??? <target name="list" description="List Tomcat applications">
??? ??? <list url="${tomcat.manager.url}" username="${tomcat.manager.username}" password="${tomcat.manager.password}" />
??? </target>
??? <target name="deploy-application" description="Compile the web application...">
??? ??? <echo message="Undeploying the application only if it's deployed..." />
??? ??? <available file="${tomcat.webapps}/${context-path}.war" property="already.deployed" />
??? ??? <antcall target="undeploy" />
??? ??? <antcall target="create-war" />
??? ??? <antcall target="deploy" />
??? </target>
</project>
只有Windows上才會有的問題，
創(chuàng)建META-INF目錄， 在目錄里新建context.xml，加入如下內容
<?xml version="1.0" encoding="UTF-8"?>
<Context reloadable="true" antiResourceLocking="true">
</Context>
昨天的錯誤至今無法修正，即使重裝了Tomcat也不行。
不過，deploy到兩臺linux服務器上倒都成功了。
??? <taskdef name="deploy" classname="org.apache.catalina.ant.DeployTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <taskdef name="list" classname="org.apache.catalina.ant.ListTask">
??? ??? <classpath>
??? ??? ??? <path location="${tomcat.dir}/server/lib/catalina-ant.jar" />
??? ??? </classpath>
??? </taskdef>
??? <target name="deploy-web" description="Install application in Local Tomcat">
??? ??? <echo message="deploying to web ..." />
??? ??? <deploy url="http://172.16.1.20:8080/manager" username="${tomcat.manager.username}" password="${tomcat.manager.password}" path="/${context-path}" war="file:${dist}/${context-path}.war" update="true" />
??? </target>
??? <target name="list-web">
??? ??? <echo message="list web tomcat ..." />
??? ??? <list url="http://172.16.1.20:8080/manager" username="${tomcat.manager.username}" password="${tomcat.manager.password}" />
??? </target>
這里跟昨天的代碼有一點不一樣：
1、localWar改成了war。
原來更新遠程服務器的時候，總是顯示更新成功，但是到webapps目錄下總是沒有相應的war文件，通過調用
ant list-web
發(fā)現，有一個context-path是dist/msms，而且是stop狀態(tài)。哦，原來localWar的意思不是指開發(fā)的機器的local path，而是指把這個war被寫到服務器的什么地方。改成war就正常了。
2、不需要判斷是否已經deploy進而調用undeploy了，直接通過update="true"更新就可以了。