前端js和css的压缩合并之YUI-Compressor

me：注：早已经迁往github上了。

地址：https://github.com/yui/yuicompressor/blob/master/README.md

 

From：http://www.everycoding.com/coding/80.html

YUI Compressor Maven插件压缩 js、css并输出war包

YUI Compressor是一款非常强大JS混淆和压缩工具。目前很多Javascript框架都使用YUI Compressor进行了代码压缩。据说鼎鼎有名的Jquery框架也是使用YUI Compressor进行压缩。YUI Compressor压缩的好处是不仅大大减少js、css的体积，同时在对javascript代码的混淆压缩中对属性命名的替换，使得压缩过的js不易阅读，能起到源码的保护作用。本文主要介绍YUI Compressor的使用方法和技巧。

一、在Maven pom.xml文件中，添加YUI Compressor 插件。代码如下：

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<plugin>     <groupId>net.alchim31.maven</groupId>     <artifactId>yuicompressor-maven-plugin</artifactId>     <version>1.3.0</version>     <executions>         <execution>             <goals>                 <goal>compress</goal>             </goals>         </execution>     </executions>     <configuration>         <skip>false</skip>         <!-- 读取js,css文件采用UTF-8编码 -->         <encoding>UTF-8</encoding>         <jswarn>false</jswarn>         <!-- 若存在已压缩的文件，会先对比源文件是否有改动。有改动便压缩，无改动就不压缩 -->         <force>false</force>         <!-- <suffix>.min</suffix> -->         <nosuffix>true</nosuffix>         <!-- 在指定的列号后插入新行 -->         <linebreakpos>-1</linebreakpos>         <!-- 压缩之前先执行聚合文件操作 -->         <preProcessAggregates>true</preProcessAggregates>         <aggregations>             <aggregation>                 <removeIncluded>true</removeIncluded>                 <insertNewLine>true</insertNewLine>                 <inputDir>${project.build.directory}/${project.build.finalName}/resources/static/js                 </inputDir>                 <output>${project.build.directory}/${project.build.finalName}/build/js/basic.min.js                 </output>                 <includes>                     <include>jquery-1.7.2.js</include>                     <include>everycoding.js</include>                     <include>front.js</include>                 </includes>             </aggregation>             <aggregation>                 <insertNewLine>true</insertNewLine>                 <inputDir>${project.build.directory}/${project.build.finalName}/resources/static/css                 </inputDir>                 <output>${project.build.directory}/${project.build.finalName}/build/css/basic.min.css                 </output>                 <includes>                     <include>common.css</include>                     <include>front.css</include>                 </includes>             </aggregation>         </aggregations>     </configuration> </plugin>

aggregations：管理需要分类合并的Js、Css

二、使用Maven命令执行压缩：

1	mvn yuicompressor:compress

三、打war时，如果需要排除未压缩的js、css文件，可使用如下方法：

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<plugin>     <groupId>org.apache.maven.plugins</groupId>     <artifactId>maven-war-plugin</artifactId>     <version>2.4</version>     <configuration>         <warSourceExcludes>**/*.js,**/*.css</warSourceExcludes>     </configuration> </plugin>

YUI Compressor官网：http://yui.github.io/yuicompressor/

相关配置参数说明：http://alchim31.free.fr/mvnsites/yuicompressor-maven-plugin/compress-mojo.html

 

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