开发和定义自己的task
ant是一个可以扩充的构建工具，开发者可以开发自己的java类来扩充ant。下面是一个简单的扩充类:
package com.mydomain;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
public class MyVeryOwnTask extends Task {
private String msg;
// The method executing the task
public void execute() throws BuildException {
System.out.println(msg);
}
// The setter for the "message" attribute
public void setMessage(String msg) {
this.msg = msg;
}
}
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
public class MyVeryOwnTask extends Task {
private String msg;
// The method executing the task
public void execute() throws BuildException {
System.out.println(msg);
}
// The setter for the "message" attribute
public void setMessage(String msg) {
this.msg = msg;
}
}
这个扩展任务将有一个属性message，ant在执行这个任务时会调用execute方法。下面是在build.xml配置文件中使用这个扩展的示例：
<?xml version="1.0"?>
<project name="OwnTaskExample" default="main" basedir=".">
<taskdef name="mytask" classname="com.mydomain.MyVeryOwnTask">
<classpath>
<pathelement location="where/u/put/the/class/"/>
</classpath>
<target name="main">
<mytask message="Hello World! MyVeryOwnTask works!"/>
</target>
</project>
<project name="OwnTaskExample" default="main" basedir=".">
<taskdef name="mytask" classname="com.mydomain.MyVeryOwnTask">
<classpath>
<pathelement location="where/u/put/the/class/"/>
</classpath>
<target name="main">
<mytask message="Hello World! MyVeryOwnTask works!"/>
</target>
</project>
