UglifyJS压缩jsp里面的js代码和js文件

若是你不知道UglifyJS就out了，jquery的官方压缩工具啦～ 

原本UglifyJS没有windows的客户端压缩工具，后来本身参照YUI的BAT工具（好像是淘宝一个哥们写的）改写了一个，具体见下面的说明。

UglifyJS
安装指南
=========
安装步骤：
0. 安装nodejs运行环境:http://nodejs.org/,设置nodejs的安装目录到PATH中，一句话CMD中输入 node --version：
--->C:\Users\xin>node --version
--->v0.6.15
1. 安装请点击 install.cmd
2. 卸载请点击 uninstall.cmd
3. 若是安装过以前的版本，请先卸载老版本
压缩测试：
选中 test.js, 执行右键菜单“Process with UglifyJS”，会生成 test-min.js.

jsp里面的script标签只能是:"<script>"和'<script type="text/javascript">'，其余的本身加入吧，查找代码：text.indexOf('<script type="text/javascript">') 

固然我以为这个工具最好能支持压缩jsp里的js代码啦，因此本身看了下bin下面的uglifyjs文件，无非就是一些js的函数，找到了修改代码的切入点：output(squeeze_it(text))，接下来就好办了，下图为修改先后的对比：

最后附上maven下面的压缩脚本： 

<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-resources-plugin</artifactId>
				<version>2.5</version>
				<executions>
					<execution>
						<id>copy-config</id>
						<goals>
							<goal>copy-resources</goal>
						</goals>
						<phase>compile</phase>
						<configuration>
							<outputDirectory>${project.build.directory}</outputDirectory>
							<resources>
								<resource>
									<directory>src/test/resources</directory>
									<includes>
										<include>uglify/*</include>
										<include>uglify/lib/*</include>
									</includes>
								</resource>
							</resources>
						</configuration>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-antrun-plugin</artifactId>
				<version>1.7</version>
				<executions>
					<execution>
						<phase>install</phase>
						<goals>
							<goal>run</goal>
						</goals>
						<configuration>
							<target>
								<echo message="开始用uglifyjs压缩 JSP 文件. 请耐心等待！" />
								<property name="uglifyjs" value="${project.build.directory}/uglify/uglifyjs" />
								<property name="jsp.compress.directory" value="${project.build.directory}/${project.build.finalName}/WEB-INF" />
								<apply executable="node" parallel="false" failonerror="true" dest="${jsp.compress.directory}">
									<fileset dir="${jsp.compress.directory}" includes="**/*.jsp" />
									<arg line=" ${uglifyjs}" />
									<arg line=" --ascii" />
									<arg line=" -o" />
									<targetfile />
									<srcfile />
									<mapper type="regexp" from="^(.*)\.(jsp)$" to="\1-min.\2" />
								</apply>
								<move todir="${jsp.compress.directory}">
									<fileset dir="${jsp.compress.directory}" includes="**/*.jsp" />
									<mapper type="regexp" from="^(.*)-min\.(jsp)$" to="\1.\2" />
								</move>
								<echo message="成功用uglifyjs压缩 JSP 文件" />
								
								<echo message="开始用uglifyjs压缩 JS 文件. 请耐心等待！" />
								<property name="uglifyjs" value="${project.build.directory}/uglify/uglifyjs" />
								<property name="js.compress.directory" value="${project.build.directory}/${project.build.finalName}/resources/js" />
								<apply executable="node" parallel="false" failonerror="true" dest="${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>
								<echo message="成功用uglifyjs压缩 JS 文件" />
								
							</target>
						</configuration>
					</execution>
				</executions>
			</plugin>
			<!-- CSS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>
							<includes>
								<include>**/*.css</include>
							</includes>
							<nosuffix>true</nosuffix><!-- 不须要后缀 -->
							<linebreakpos>-1</linebreakpos><!-- 是否在一行 -->
						</configuration>
					</execution>
				</executions>
			</plugin>

附件为： http://www.oschina.net/code/snippet_130931_10767