ANT antcontrib使用
写在前面:最近用ANT脚本用的比较的多,发现在ANT中使用条件判断有些麻烦,就查点资料,:(1)可以使用condition进行逻辑的判断,接受的属性是property,相当于boolean xx=true(或false),if,unless相当于if-else.(2)可以使用antcontrib.jar这个包文件,大概看了一下,就是将condition拿掉,使用我们熟悉的if-else-then的结果进行业务逻辑的判断!!
<?xml version="1.0" encoding="UTF-8"?>
<project name="cvs package" basedir="." default="packing_cvs_package.init">
?
? <!--<property name="hello" value="true"/>-->
?<!--ant-contrib classpath-->
? <input message="Please input the hello name:" addproperty="hello" />
?
? <taskdef resource="net/sf/antcontrib/antcontrib.properties">
??????? <classpath>
??????????? <pathelement location="E:/apache-ant-1.8.2/ant-contrib/ant-contrib-1.0b2.jar"/>
??????? </classpath>
? </taskdef>
? <!--default-->
?<target name="packing_cvs_package.init">
?<if>
??<equals arg1="${hello}" arg2="true"/>
??<then>
???? <echo >${hello} value is true</echo>
??</then>
?<elseif>
??<equals arg1="${hello}" arg2="false"/>
??<then>
???<echo >${hello} value is false</echo>
??</then>
?</elseif>
??<else>
??? <echo >${hello} value is unknowe</echo>
??</else>
?</if>
?</target>
</project>
?
上面的有些路径写绝对路径了,修改下:
?
<project name="imported" basedir="." default="packing_cvs_package.init">
? <dirname property="imported.basedir" file="${ant.file.imported}"/>?
?<property file="${imported.basedir}/base.properties"/>
? <input message="Please input the hello name:" addproperty="hello" />
?
? <!--ant-contrib classpath-->
? <taskdef resource="net/sf/antcontrib/antcontrib.properties">
??????? <classpath>
??????????? <pathelement location="${path}"/>
??????? </classpath>
? </taskdef>
? <!--default-->
?<target name="packing_cvs_package.init">
?<if>
??<equals arg1="${hello}" arg2="true"/>
??<then>
???? <echo >${hello} value is true</echo>
??</then>
?<elseif>
??<equals arg1="${hello}" arg2="false"/>
??<then>
???<echo >${hello} value is false</echo>
??</then>
?</elseif>
? <else>
??? <echo >${hello} value is unknowe</echo>
??</else>
?</if>
?</target>
?
</project>
?
base.properties文件的内容:
path=E:/apache-ant-1.8.2/ant-contrib/ant-contrib-1.0b2.jar
就是一个地址!!
?
