使用ant打包js文件

为了减少http请求，以及缩小js的体积，我们需要把游戏中用到的所有js打包成一个，在配置好jdk，ant，相应jar包后，这里的jar包是compiler.jar，google荣誉出品，配置build.xml如下

<?xml version="1.0"?>
<project name="Javascript compress project" basedir="." default="compile">

    <!-- The classpath should be modified to the real closure compiler jar file path -->
    <taskdef name="jscomp" classname="com.google.javascript.jscomp.ant.CompileTask" classpath="build/compiler.jar"/>
    <target name="compile">
        <jscomp compilationLevel="simple" warning="quiet"
                debug="false" output="./game.min.js">
                <!-- Uncomment the line below to enable sourcemap generation -->
            <!--sourceMapOutputFile="./cocos2d-js-sourcemap" sourceMapFormat="V3"> -->
            <sources dir="./">
                <!-- You may need to modify the file name to the actual downloaded file name -->
				<file name="cocos2d-js-v3.0.js"/>
				<file name="resource.js"/>
				<file name="Constant.js"/>
				<file name="Map.js"/>
                <!-- Put your own js files here, dependency order is also important -->
            </sources>
        </jscomp>
    </target>
</project>

然后cd到相应的根目录，执行ant，十几秒输出文件game.min.js，大功告成。