YUI Compressor Maven插件在错误的时间执行和tomcat插件不使用yui压缩器输出

Question

我想为maven使用YUI Compressor插件来压缩我的CSS和JavaScript，但我遇到了两个问题。

1. 我的配置适当压缩和聚合JavaScript文件，但如果我跑mvn package做出war文件，Maven将压缩JavaScript文件之前，它的副本在src/main/webapp文件夹。这将覆盖所有压缩的CSS和JavaScript文件。我怎样才能解决这个问题？

2. 如何让tomcat maven插件使用压缩的JavaScript文件而不是我的src/main/webapp/scripts文件夹中的文件？当我的应用程序试图读取all.js时，它失败，因为它位于target/目录中，而不在我的src/main/webapps文件夹中。

   <!-- Tomcat --> 
       <plugin> 
        <groupId>org.codehaus.mojo</groupId> 
        <artifactId>tomcat-maven-plugin</artifactId> 
        <version>1.1</version> 
        <configuration> 
         <warFile>target/myapp-1.0.war</warFile> 
        </configuration> 
       </plugin> 
   
       <!-- YUI Compressor --> 
       <plugin> 
        <groupId>net.alchim31.maven</groupId> 
        <artifactId>yuicompressor-maven-plugin</artifactId> 
        <executions> 
         <execution> 
          <goals> 
           <goal>compress</goal> 
          </goals> 
         </execution> 
        </executions> 
        <configuration> 
         <excludes> 
          <exclude>**/jwplayer.js</exclude> 
          <exclude>**/audio-player-noswfobject.js</exclude> 
          <exclude>**/audio-player-uncompressed.js</exclude> 
          <exclude>**/audio-player.js</exclude> 
          <exclude>**/jscharts.js</exclude> 
          <exclude>**/jquery-ui-1.8.16.custom.min.js</exclude> 
         </excludes> 
         <nosuffix>true</nosuffix> 
         <jswarn>false</jswarn> 
         <force>false</force> 
         <aggregations> 
          <aggregation> 
           <removeIncluded>false</removeIncluded> 
           <insertNewLine>true</insertNewLine> 
           <output>${project.build.directory}/${project.build.finalName}/scripts/all.js</output> 
           <includes> 
            <include>**/json/json2.js</include> 
            <include>**/jwplayer/jwplayer.js</include> 
            <include>**/font/font.js</include> 
            <include>**/underscore/underscore.js</include> 
            <include>**/jquery/jquery-1.7.1.js</include> 
            <include>**/jquery/jquery-ui-1.8.16.custom.min.js</include> 
            <include>**/jquery/jquery.cookie.js</include> 
            <include>**/jquery/jquery.fancybox.js</include> 
            <include>**/jquery/jquery.highlight.js</include> 
            <include>**/jquery/jquery.jcrop.js</include> 
            <include>**/jquery/jquery.tmpl.js</include> 
            <include>**/jquery/farbtastic.js</include> 
            <include>**/jscharts/jscharts.js</include> 
   
            <include>**/myapp/homepage.js</include> 
           </includes> 
          </aggregation> 
         </aggregations> 
        </configuration> 
       </plugin> 
   

或者，我只是要我的目标走错了路？

这里是打包战争时的maven输出。你可以看到，即使我告诉yui:compress目标，在预包装阶段，仍然是资源的复制之前发生，因为这发生在package阶段：

[INFO] ------------------------------------------------------------------------ 
[INFO] Building My App 1.0 
[INFO] ------------------------------------------------------------------------ 
Downloading: http://repo1.maven.org/maven2/net/alchim31/maven/yuicompressor-maven-plugin/maven-metadata.xml 
Downloading: http://snapshots.repository.codehaus.org/net/alchim31/maven/yuicompressor-maven-plugin/maven-metadata.xml 
Downloading: http://download.java.net/maven/2/net/alchim31/maven/yuicompressor-maven-plugin/maven-metadata.xml 
Downloading: http://oss.sonatype.org/content/groups/public/net/alchim31/maven/yuicompressor-maven-plugin/maven-metadata.xml 
Downloaded: http://oss.sonatype.org/content/groups/public/net/alchim31/maven/yuicompressor-maven-plugin/maven-metadata.xml (442 B at 2.1 KB/sec) 
Downloaded: http://repo1.maven.org/maven2/net/alchim31/maven/yuicompressor-maven-plugin/maven-metadata.xml (403 B at 0.9 KB/sec) 
[INFO] 
[INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @ myapp --- 
[INFO] Using 'UTF-8' encoding to copy filtered resources. 
[INFO] Copying 26 resources 
[INFO] Copying 4 resources 
[INFO] 
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ myapp --- 
[INFO] Nothing to compile - all classes are up to date 
[INFO] 
[INFO] --- maven-compiler-plugin:2.3.2:compile (default) @ myapp --- 
[INFO] Nothing to compile - all classes are up to date 
[INFO] 
[INFO] --- aspectj-maven-plugin:1.3:compile (default) @ myapp --- 
[INFO] 
[INFO] --- maven-resources-plugin:2.4.3:testResources (default-testResources) @ myapp --- 
[INFO] Using 'UTF-8' encoding to copy filtered resources. 
[INFO] Copying 11 resources 
[INFO] 
[INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @ myapp --- 
[INFO] Nothing to compile - all classes are up to date 
[INFO] 
[INFO] --- aspectj-maven-plugin:1.3:test-compile (default) @ myapp --- 
[INFO] No modifications found skipping aspectJ compile 
[INFO] 
[INFO] --- maven-surefire-plugin:2.6:test (default-test) @ myapp --- 
[INFO] Tests are skipped. 
[INFO] 
[INFO] --- yuicompressor-maven-plugin:1.2:compress (default) @ myapp --- 
[INFO] 960.css (9989b) -> 960.css (5897b)[59%] 
[INFO] base.css (24210b) -> base.css (16437b)[67%] 
[INFO] reset.css (2062b) -> reset.css (1096b)[53%] 
[INFO] text.css (1270b) -> text.css (598b)[47%] 
[INFO] tinymce.css (1994b) -> tinymce.css (1277b)[64%] 
[INFO] jquery.fancybox-1.3.4.css (8852b) -> jquery.fancybox-1.3.4.css (6975b)[78%] 
[INFO] farbtastic.css (1362b) -> farbtastic.css (478b)[35%] 
[INFO] jquery.jcrop.css (748b) -> jquery.jcrop.css (582b)[77%] 
[INFO] base.css (34567b) -> base.css (25034b)[72%] 
[INFO] jquery-ui-1.8.11.custom.css (33994b) -> jquery-ui-1.8.11.custom.css (25351b)[74%] 
.... (tons of javascript files) 
[INFO] why.js (515b) -> why.js (354b)[68%] 
[INFO] underscore.js (26960b) -> underscore.js (9472b)[35%] 
[INFO] total input (1832512b) -> output (1198425b)[65%] 
[INFO] generate aggregation : C:\Users\egervari\IdeaProjects\myapp-development\target\myapp-1.0\scripts\all.js 
[INFO] all.js (564342b) 
[INFO] nb warnings: 0, nb errors: 0 
[INFO] 
[INFO] --- maven-war-plugin:2.1.1:war (default-war) @ myapp --- 
[INFO] Packaging webapp 
[INFO] Assembling webapp [myapp] in [C:\Users\egervari\IdeaProjects\myapp-development\target\myapp-1.0] 
[INFO] Processing war project 
[INFO] Copying webapp resources [C:\Users\egervari\IdeaProjects\myapp-development\src\main\webapp] 

即使改变阶段所做的工作，那么我也必须在tomcat:run之前得到这个压缩文件。

是行家只为你认为错误的工作工具？或者是maven/java只是没有达到与重JavaScript开发鼻烟？为什么这么难？

Answer 1

我遇到类似的问题，我改变了我的阶段包。希望这会帮助其他人。

这是棘手。这与nosuffix配置选项有关。如果您删除nosuffix选项，缩小按预期工作。

如果你真的不得不nosuffix那么你需要执行阶段更改为“包”。

<executions> 
     <execution> 
     <phase>package</phase> 
      <goals> 
    ...... 
    ..... 

任何阶段之前准备资源不起作用，因为战争是建立时，它从原来的源位置拿起JS，从而覆盖缩小的JS（创建过程中准备资源相）在目标目录。

缩小在删除nosuffix时起作用，因为在包阶段，文件名称不同，因此不会覆盖文件，您将在目标目录中看到缩小和非缩小的js文件。

Answer 2

要解决此问题，您可以事端等。

（1）放入的src/main/JS你的个人编码的JavaScript没有的src/main/webapp的。对JS放置使用mvn约定。 *注意：对于包含的图书馆，例如jQuery或其他任何东西，你可以将它们转储到src/main/webapp中，这很好。那些已经最小化了JavaScript，你永远不会修改。（2）调整你的YUI插件（a）忽略你没有编码的javascript，（b）编译压缩的javascript到一个输出文件夹。

 <plugin> 
      <groupId>net.alchim31.maven</groupId> 
      <artifactId>yuicompressor-maven-plugin</artifactId> 
      <version>1.5.1</version> 
      <executions> 
       <execution> 
        <goals> 
         <goal>compress</goal> 
        </goals> 
       </execution> 
      </executions> 
      <configuration> 
       <nosuffix>true</nosuffix> 

       <excludes> 
        <exclude>**/ui-framework/**</exclude> 
       </excludes> 
       <outputDirectory>${yui.outputdir}</outputDirectory> 
      </configuration> 
     </plugin> 

所以用这个，我们可以做以下练习。

mvn process-resources 


└── target 
├── classes 
│   ├── default.logback.xml 
│   └── props 
│    ├── default.props 
│    └── production.default.props 
├── packageLinkDefs.properties 
└── yui-compressed 
    └── jasmineDummyExample_element_mover.js 

这里的关键是，YUI正在编译压缩的JavaScript到自己的输出文件夹，战争插件不知道它。 （3）最后你只需要调整你的war插件来复制yui编译的源代码。

只要你遵循JavaScript规范的maven，你的javascript应该在src/main/js /下编码，默认情况下你的war插件不会复制你的javascipt（听起来很奇怪吧？）。

默认情况下，你的war插件将复制src/main/webapp下的任何静态资源。 这很方便，因为它允许您指示war插件保持将src/main/webapp复制到最终war文件的默认行为，此外还可以复制/ src/target/yui-compressed文件夹。以这种方式，两个文件夹中都没有重叠文件，输出目录中没有文件覆盖。

这下面的代码片段所示：

$ mvn war:war 
[INFO] Scanning for projects... 
[INFO] 
[INFO] ------------------------------------------------------------------------ 
[INFO] Building lift-someproject Project 1.0 
[INFO] ------------------------------------------------------------------------ 
[INFO] 
[INFO] --- maven-war-plugin:2.5:war (default-cli) @ lift-someproject --- 
[INFO] Packaging webapp 
[INFO] Assembling webapp [lift-someproject] in [D:\scalaWorkspace\liftsomeprojectTwo\lift-someproject\target\lift-someproject] 
[INFO] Processing war project 
[INFO] Copying webapp webResources [D:\scalaWorkspace\liftsomeprojectTwo\lift-someproject\target\yui-compressed] to [D:\scalaWorkspace\liftsomeprojectTwo\lift-someproject\target\lift-someproject] 
[INFO] Copying webapp resources [D:\scalaWorkspace\liftsomeprojectTwo\lift-someproject\src\main\webapp] 
[INFO] Webapp assembled in [820 msecs] 
[INFO] Building war: D:\scalaWorkspace\liftsomeprojectTwo\lift-someproject\target\lift-someproject.war 
[INFO] ------------------------------------------------------------------------ 
[INFO] BUILD SUCCESS 
[INFO] ------------------------------------------------------------------------ 
[INFO] Total time: 12.968s 
[INFO] Finished at: Tue Dec 23 20:17:59 CET 2014 
[INFO] Final Memory: 11M/246M 
[INFO] ------------------------------------------------------------------------ 

你可以调整你的WAR文件要知道你不压碎衣压缩JS文件的特殊文件夹：

<plugin> 
      <groupId>org.apache.maven.plugins</groupId> 
      <artifactId>maven-war-plugin</artifactId> 
      <version>2.5</version> 
      <configuration> 
       <webResources> 
        <resource> 
         <directory>${yui.outputdir}</directory> 
         <targetPath>js</targetPath> 
        </resource> 
       </webResources> 
      </configuration> 
     </plugin> 

如果您使用Jetty进行快速开发，您需要进一步研究该插件，以确保它在src/main/js中找到您的手工编码javascript。

这应该工作。