maven中用yuicompressor和closure-compiler对js、css文件进行压缩

转载自：http://matychen.iteye.com/blog/1477350

项目采用maven构建的时候，需要压缩js，css等，网上找了相关资料，自己综合了下～ 

直接放代码： 

<!-- js压缩 -->
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>yuicompressor-maven-plugin</artifactId>
                <version>1.3.0</version>
                <executions>
                    <execution>
                        <phase>install</phase>
                        <goals>
                            <goal>compress</goal>
                        </goals>
                        <configuration>
                            <excludes>
                                <exclude>**/*.min.js</exclude>
                                <exclude>**/*-min.js</exclude>
                            </excludes>
                            <nosuffix>true</nosuffix>
                            <linebreakpos>-1</linebreakpos>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <!-- native2ascii -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>native2ascii-maven-plugin</artifactId>
                <version>1.0-beta-1</version>
                <executions>
                    <execution>
                        <phase>install</phase>
                        <goals>
                            <goal>native2ascii</goal>
                        </goals>
                        <configuration>
                            <workDir>${project.build.directory}/${project.build.finalName}</workDir>
                            <excludes>
                                <exclude>**/*.css</exclude>
                            </excludes>
                            <includes>
                                <include>resources/js/*.js</include>
                            </includes>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

更喜欢采用谷歌的closure-compiler + maven-antrun-plugin 

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.4</version>
                <executions>
                    <execution>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>com.google.javascript</groupId>
                                    <artifactId>closure-compiler</artifactId>
                                    <version>r1810</version>
                                    <type>jar</type>
                                    <overWrite>true</overWrite>
                                    <outputDirectory>${project.build.directory}/compressor</outputDirectory>
                                    <destFileName>closure-compiler.jar</destFileName>
                                </artifactItem>
                                <artifactItem>
                                    <groupId>com.yahoo.platform.yui</groupId>
                                    <artifactId>yuicompressor</artifactId>
                                    <version>2.4.6</version>
                                    <type>jar</type>
                                    <overWrite>true</overWrite>
                                    <outputDirectory>${project.build.directory}/compressor</outputDirectory>
                                    <destFileName>yuicompressor.jar</destFileName>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>1.7</version>
                <executions>
                    <execution>
                        <phase>install</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                        <configuration>
                            <tasks>
                                <echo message="开始压缩 JS 文件. 请耐心等待！" />
                                <property name="yuicompressor" value="${project.build.directory}/compressor/yuicompressor.jar" />
                                <property name="closure-compiler" value="${project.build.directory}/compressor/closure-compiler.jar" />
                                <property name="css.compress.directory" value="${project.build.directory}/${project.build.finalName}/resources" />
                                <property name="js.compress.directory" value="${css.compress.directory}/js" />
                                <apply executable="java" parallel="false" failonerror="true" dest="${js.compress.directory}">
                                    <fileset dir="${js.compress.directory}" includes="**/*.js" />
                                    <arg line="-jar" />
                                    <arg path="${closure-compiler}" />
                                    <arg line="--warning_level DEFAULT" />
                                    <arg line="--compilation_level SIMPLE_OPTIMIZATIONS" />
                                    <arg line="--js" />
                                    <srcfile />
                                    <arg line="--js_output_file" />
                                    <targetfile />
                                    <mapper type="regexp" from="^(.*).(js)$" to="1-min.2" />
                                </apply>
                                <move todir="${js.compress.directory}">
                                    <fileset dir="${js.compress.directory}" includes="**/*.js" />
                                    <mapper type="regexp" from="^(.*)-min.(js)$" to="1.2" />
                                </move>
                                <echo message="成功压缩 JS 文件" />
                                <echo message="开始压缩 CSS 文件. 请耐心等待！" />
                                <apply executable="java" parallel="false" failonerror="true" dest="${css.compress.directory}">
                                    <fileset dir="${css.compress.directory}" includes="**/*.css" />
                                    <arg line="-jar" />
                                    <arg path="${yuicompressor}" />
                                    <arg line="--charset UTF-8" />
                                    <arg value="--type"/>
                                    <arg value="css"/>
                                    <srcfile />
                                    <arg line="-o" />
                                    <targetfile />
                                    <mapper type="regexp" from="^(.*).(css)$" to="1-min.2" />
                                </apply>
                                <move todir="${css.compress.directory}">
                                    <fileset dir="${css.compress.directory}" includes="**/*.css" />
                                    <mapper type="regexp" from="^(.*)-min.(css)$" to="1.2" />
                                </move>
                                <echo message="成功压缩 CSS 文件" />
                            </tasks>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

JQUERY 的压缩工具 uglifyjs版本的配置，必须要有nodejs环境 （executable="node"）即在cmd中能够执行 node --version. uglifyjs可以在https://github.com/mishoo/UglifyJS 下载，下载后续稍稍修改bin/uglifyjs，把里面的 

var uglify = require("uglify-js")

修改为 

var uglify = require("./uglify-js");//或者 ../uglify-js

因为uglify-js默认是在bin目录外面的。 

如需更新uglify的版本，每次覆盖相应文件，只修改上面文件即可。 

<echo message="开始压缩 JS 文件. 请耐心等待！" />
                                <property name="uglifyjs" value="${project.build.directory}/compressor/uglify/uglifyjs" />
                                <property name="yuicompressor" value="${project.build.directory}/compressor/yuicompressor.jar" />
                                <property name="closure-compiler" value="${project.build.directory}/compressor/closure-compiler.jar" />
                                <property name="css.compress.directory" value="${project.build.directory}/${project.build.finalName}/resources" />
                                <property name="js.compress.directory" value="${css.compress.directory}/js" />
                                <apply executable="node" parallel="false" failonerror="true" dest="${js.compress.directory}">
                                    <fileset dir="${js.compress.directory}" includes="**/*.js" />
                                    <arg line=" ${uglifyjs}" />
                                    <arg line=" --ascii" />
                                    <arg line=" -o" />
                                    <targetfile />
                                    <srcfile />
                                    <mapper type="regexp" from="^(.*).(js)$" to="1-min.2" />
                                </apply>
                                <move todir="${js.compress.directory}">
                                    <fileset dir="${js.compress.directory}" includes="**/*.js" />
                                    <mapper type="regexp" from="^(.*)-min.(js)$" to="1.2" />
                                </move>