在javaEE项目中，需要将工程部署到远程服务器上，如果部署的频率比较高，手动部署的方式就比较麻烦，可以利用Ant工具实现快捷的部署。这篇博文详细介绍了ant配置的步骤（http://www.cnblogs.com/GloriousOnion/archive/2012/12/18/2822817.html），但是在tomcat7以上不适用，需要修改配置，具体如下：
1.配置tomcat的用户角色
tomcat7中的用户角色有：
manager-gui — Access to the HTML interface.
manager-status — Access to the "Server Status" page only.
manager-script — Access to the tools-friendly plain text interface that is described in this document, and to the "Server Status" page.
manager-jmx — Access to JMX proxy interface and to the "Server Status" page.
我们要用到的是manager-script，在tomcat-users.xml 中进行配置。加入以下代码：
<role rolename="manager-script" />
<user username="用户名"password="密码" roles="manager-script">
2.配置Ant环境
3.编写build.xml文件
<project name="工程名"default="redeploy" basedir=".">
< !-- Configure the directory into which the web application is built-->
<property name="build" value="${basedir}/build"/>
< !-- Configure the context path for this application -->
<property name="path" value="/应用的名称"/>
< !-- Configure properties to access the Manager application -->
<property name="url" value="http://你的域名/manager/text"/>
< property name="username" value="步骤1中配置的用户名"/>
<property name="password" value="步骤1中配置的密码"/>
< !-- Configure the custom Ant tasks for the Manager application-->
<taskdef name="deploy" classname="org.apache.catalina.ant.DeployTask"/>
< taskdef name="list" classname="org.apache.catalina.ant.ListTask"/>
< taskdef name="reload" classname="org.apache.catalina.ant.ReloadTask"/>
< taskdef name="findleaks" classname="org.apache.catalina.ant.FindLeaksTask"/>
< taskdef name="resources" classname="org.apache.catalina.ant.ResourcesTask"/>
< taskdef name="start" classname="org.apache.catalina.ant.StartTask"/>
< taskdef name="stop" classname="org.apache.catalina.ant.StopTask"/>
< taskdef name="undeploy" classname="org.apache.catalina.ant.UndeployTask"/>
< !-- Executable Targets -->
<target name="compile" description="Compile web application">
< !-- ... construct web application in ${build} subdirectory, and
generated a ${path}.war ... -->
<delete dir="${build}"/>
<mkdir dir="${build}"/>
<war destfile="${build}/school.war" webxml="WebRoot/WEB-INF/web.xml">
<classes dir="WebRoot/WEB-INF/classes">
<exclude name="**/*.xml"/>
</classes>
<lib dir="WebRoot/WEB-INF/lib" />
< fileset dir="WebRoot">
<include name="**/**.*" />
<exclude name="**/*.jar"/>
<exclude name="**/*.class"/>
< /fileset>
</war>
< /target>
< target name="deploy" description="Install web application" depends="compile">
< deploy url="${url}" username="${username}" password="${password}" path="${path}" war="${build}/school.war"/>
< /target>
< target name="reload" description="Reload web application" depends="compile">
< reload url="${url}" username="${username}" password="${password}" path="${path}"/>
< /target>
< target name="undeploy" description="Remove web application">
< undeploy url="${url}" username="${username}" password="${password}" path="${path}"/>
< /target>
<target name="redeploy" description="Remove and Install web application">
<antcall target="undeploy"/>
<antcall target="deploy"/>
</target>
</project>
最后运行该文件，你的工程就可以部署到远程tomcat上了。
具体的说明可参考官方的文档：
http://tomcat.apache.org/tomcat-7.0-doc/manager-howto.html#Executing_Manager_Commands_With_Ant
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