java - YUI Compressor Maven 插件在错误的时间执行，而 tomcat 插件未使用 yui-compressor 输出

Question

我正在尝试使用 Maven 的 YUI Compressor 插件来压缩我的 CSS 和 JavaScript，但我遇到了两个问题。

1. 我的配置正确地压缩和聚合了 JavaScript 文件，但是如果我运行 mvn package 来制作一个 war 文件，maven 会在复制 src 之前压缩 JavaScript 文件/main/webapp 文件夹。这将覆盖所有压缩的 css 和 JavaScript 文件。我该如何解决这个问题？

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，它失败了，因为它位于 target/ 目录中，而不是在我的 src/main/webapps 文件夹。

       <!-- 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>
   

还是我只是以错误的方式实现了我的目标？

这是打包war时的maven输出。你可以看到，即使我在预打包阶段告诉 yui:compress 目标，它仍然发生在复制资源之前，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]

即使更改阶段确实有效，我也必须让此压缩在 tomcat:run 之前运行。

maven 是否是您认为的工作的错误工具？还是 maven/java 不适合繁重的 javascript 开发？为什么这么难？

Answer 1

我遇到了类似的问题，我将阶段更改为 package.希望这也会对其他人有所帮助。

这很棘手。这与 nosuffix 配置选项有关。如果删除 nosuffix 选项，缩小会按预期工作。

如果你真的必须有nosuffix那么你需要将执行阶段改为“打包”。

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

prepare-resources 之前的任何阶段都不起作用，因为构建 war 时，它会从原始源位置获取 js，从而覆盖目标目录中的缩小 js(在 prepare-resources 阶段创建)。

当您删除 nosuffix 时，缩小会起作用，因为在打包阶段，文件名不同，因此不会覆盖文件，您将在目标目录中看到缩小和未缩小的 js 文件。