在`WEB-INF / lib`文件夹中找不到jar文件的解决方案，也没有在`src / main / resources`文件夹中找到？
我有一个在Jetty / App Engine / Spring上运行的Java应用程序。
从pom删除一些jar文件并将它们放入WEB-INF/lib文件夹后，它们不再可见 – 我收到了大量的"Cannot find symbol"构建错误。
我也尝试将jar放在src/main/resources文件夹中 – 但结果相同。
如何在不引用它们的情况下使这些jar子找到它们？
PASCAL问题的最新消息：
以下是我收到的“无法查找资源”消息：
Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/htmlunit/2.8/htmlunit-2.8.pom [INFO] Unable to find resource 'htmlunit:htmlunit:pom:2.8' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn/re pository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/htmlunit/2.8/htmlunit-2.8.pom [INFO] Unable to find resource 'htmlunit:htmlunit:pom:2.8' in repository jboss-repo (https://repository.jboss.org/nexus/content/groups /public) Downloading: http://repo1.maven.org/maven2/htmlunit/htmlunit/2.8/htmlunit-2.8.pom [INFO] Unable to find resource 'htmlunit:htmlunit:pom:2.8' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/apache-mime/0.6/apache-mime-0.6.pom [INFO] Unable to find resource 'htmlunit:apache-mime:pom:0.6' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn /repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/apache-mime/0.6/apache-mime-0.6.pom [INFO] Unable to find resource 'htmlunit:apache-mime:pom:0.6' in repository jboss-repo (https://repository.jboss.org/nexus/content/gro ups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/apache-mime/0.6/apache-mime-0.6.pom [INFO] Unable to find resource 'htmlunit:apache-mime:pom:0.6' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/commons-codec/1.4/commons-codec-1.4.pom [INFO] Unable to find resource 'htmlunit:commons-codec:pom:1.4' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/s vn/repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/commons-codec/1.4/commons-codec-1.4.pom [INFO] Unable to find resource 'htmlunit:commons-codec:pom:1.4' in repository jboss-repo (https://repository.jboss.org/nexus/content/g roups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/commons-codec/1.4/commons-codec-1.4.pom [INFO] Unable to find resource 'htmlunit:commons-codec:pom:1.4' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/commons-collections/3.2.1/commons-collections-3.2.1.pom [INFO] Unable to find resource 'htmlunit:commons-collections:pom:3.2.1' in repository maven-gae-repo (http://maven-gae-plugin.googleco de.com/svn/repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/commons-collections/3.2.1/commons-collections-3.2.1.pom [INFO] Unable to find resource 'htmlunit:commons-collections:pom:3.2.1' in repository jboss-repo (https://repository.jboss.org/nexus/c ontent/groups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/commons-collections/3.2.1/commons-collections-3.2.1.pom [INFO] Unable to find resource 'htmlunit:commons-collections:pom:3.2.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/commons-logging/1.1.1/commons-logging-1.1.1.pom [INFO] Unable to find resource 'htmlunit:commons-logging:pom:1.1.1' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.c om/svn/repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/commons-logging/1.1.1/commons-logging-1.1.1.pom [INFO] Unable to find resource 'htmlunit:commons-logging:pom:1.1.1' in repository jboss-repo (https://repository.jboss.org/nexus/conte nt/groups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/commons-logging/1.1.1/commons-logging-1.1.1.pom [INFO] Unable to find resource 'htmlunit:commons-logging:pom:1.1.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/cssparser/0.9.5/cssparser-0.9.5.pom [INFO] Unable to find resource 'htmlunit:cssparser:pom:0.9.5' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn /repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/cssparser/0.9.5/cssparser-0.9.5.pom [INFO] Unable to find resource 'htmlunit:cssparser:pom:0.9.5' in repository jboss-repo (https://repository.jboss.org/nexus/content/gro ups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/cssparser/0.9.5/cssparser-0.9.5.pom [INFO] Unable to find resource 'htmlunit:cssparser:pom:0.9.5' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/htmlunit-core-js/2.8/htmlunit-core-js-2.8.pom [INFO] Unable to find resource 'htmlunit:htmlunit-core-js:pom:2.8' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.co m/svn/repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/htmlunit-core-js/2.8/htmlunit-core-js-2.8.pom [INFO] Unable to find resource 'htmlunit:htmlunit-core-js:pom:2.8' in repository jboss-repo (https://repository.jboss.org/nexus/conten t/groups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/htmlunit-core-js/2.8/htmlunit-core-js-2.8.pom [INFO] Unable to find resource 'htmlunit:htmlunit-core-js:pom:2.8' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/httpclient/4.0.1/httpclient-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpclient:pom:4.0.1' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/sv n/repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/httpclient/4.0.1/httpclient-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpclient:pom:4.0.1' in repository jboss-repo (https://repository.jboss.org/nexus/content/gr oups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/httpclient/4.0.1/httpclient-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpclient:pom:4.0.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/httpcore/4.0.1/httpcore-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpcore:pom:4.0.1' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn/ repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/httpcore/4.0.1/httpcore-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpcore:pom:4.0.1' in repository jboss-repo (https://repository.jboss.org/nexus/content/grou ps/public) Downloading: http://repo1.maven.org/maven2/htmlunit/httpcore/4.0.1/httpcore-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpcore:pom:4.0.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/httpmime/4.0.1/httpmime-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpmime:pom:4.0.1' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn/ repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/httpmime/4.0.1/httpmime-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpmime:pom:4.0.1' in repository jboss-repo (https://repository.jboss.org/nexus/content/grou ps/public) Downloading: http://repo1.maven.org/maven2/htmlunit/httpmime/4.0.1/httpmime-4.0.1.pom [INFO] Unable to find resource 'htmlunit:httpmime:pom:4.0.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/nekohtml/1.9.14/nekohtml-1.9.14.pom [INFO] Unable to find resource 'htmlunit:nekohtml:pom:1.9.14' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn /repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/nekohtml/1.9.14/nekohtml-1.9.14.pom [INFO] Unable to find resource 'htmlunit:nekohtml:pom:1.9.14' in repository jboss-repo (https://repository.jboss.org/nexus/content/gro ups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/nekohtml/1.9.14/nekohtml-1.9.14.pom [INFO] Unable to find resource 'htmlunit:nekohtml:pom:1.9.14' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/sac/1.3/sac-1.3.pom [INFO] Unable to find resource 'htmlunit:sac:pom:1.3' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn/reposit ory) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/sac/1.3/sac-1.3.pom [INFO] Unable to find resource 'htmlunit:sac:pom:1.3' in repository jboss-repo (https://repository.jboss.org/nexus/content/groups/publ ic) Downloading: http://repo1.maven.org/maven2/htmlunit/sac/1.3/sac-1.3.pom [INFO] Unable to find resource 'htmlunit:sac:pom:1.3' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/serializer/2.7.1/serializer-2.7.1.pom [INFO] Unable to find resource 'htmlunit:serializer:pom:2.7.1' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/sv n/repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/serializer/2.7.1/serializer-2.7.1.pom [INFO] Unable to find resource 'htmlunit:serializer:pom:2.7.1' in repository jboss-repo (https://repository.jboss.org/nexus/content/gr oups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/serializer/2.7.1/serializer-2.7.1.pom [INFO] Unable to find resource 'htmlunit:serializer:pom:2.7.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/xalan/2.7.1/xalan-2.7.1.pom [INFO] Unable to find resource 'htmlunit:xalan:pom:2.7.1' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn/rep ository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/xalan/2.7.1/xalan-2.7.1.pom [INFO] Unable to find resource 'htmlunit:xalan:pom:2.7.1' in repository jboss-repo (https://repository.jboss.org/nexus/content/groups/ public) Downloading: http://repo1.maven.org/maven2/htmlunit/xalan/2.7.1/xalan-2.7.1.pom [INFO] Unable to find resource 'htmlunit:xalan:pom:2.7.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/xercesImpl/2.9.1/xercesImpl-2.9.1.pom [INFO] Unable to find resource 'htmlunit:xercesImpl:pom:2.9.1' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/sv n/repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/xercesImpl/2.9.1/xercesImpl-2.9.1.pom [INFO] Unable to find resource 'htmlunit:xercesImpl:pom:2.9.1' in repository jboss-repo (https://repository.jboss.org/nexus/content/gr oups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/xercesImpl/2.9.1/xercesImpl-2.9.1.pom [INFO] Unable to find resource 'htmlunit:xercesImpl:pom:2.9.1' in repository central (http://repo1.maven.org/maven2) Downloading: http://maven-gae-plugin.googlecode.com/svn/repository/htmlunit/xml-apis/1.3.04/xml-apis-1.3.04.pom [INFO] Unable to find resource 'htmlunit:xml-apis:pom:1.3.04' in repository maven-gae-repo (http://maven-gae-plugin.googlecode.com/svn /repository) Downloading: https://repository.jboss.org/nexus/content/groups/public/htmlunit/xml-apis/1.3.04/xml-apis-1.3.04.pom [INFO] Unable to find resource 'htmlunit:xml-apis:pom:1.3.04' in repository jboss-repo (https://repository.jboss.org/nexus/content/gro ups/public) Downloading: http://repo1.maven.org/maven2/htmlunit/xml-apis/1.3.04/xml-apis-1.3.04.pom [INFO] Unable to find resource 'htmlunit:xml-apis:pom:1.3.04' in repository central (http://repo1.maven.org/maven2)
它们都与htmlunit版本2.8相关，而不是我之前说过导致错误的gdata库。
这些是我正在尝试构建的项目的pom文件中的相应htmlunit条目：
htmlunit htmlunit 2.8 htmlunit apache-mime 0.6 htmlunit commons-codec 1.4 htmlunit commons-collections 3.2.1 htmlunit commons-logging 1.1.1 htmlunit cssparser 0.9.5 htmlunit htmlunit-core-js 2.8 htmlunit httpclient 4.0.1 htmlunit httpcore 4.0.1 htmlunit httpmime 4.0.1 htmlunit nekohtml 1.9.14 htmlunit sac 1.3 htmlunit serializer 2.7.1 htmlunit xalan 2.7.1 htmlunit xercesImpl 2.9.1 htmlunit xml-apis 1.3.04
正如您所猜测的那样，我本地maven存储库中的htmlunit没有pom文件。 我也记不起我是如何安装它的。 在包含jar文件的每个子目录中，没有pom文件 – 而是一个名为htmlunit-2.8.pom.lastUpdated的文件，其中包含以下文本：
#Last modified on: Tue Oct 26 13:43:29 BST 2010 #Tue Oct 26 13:43:29 BST 2010 http\://maven-gae-plugin.googlecode.com/svn/repository=1288097006231 https\://repository.jboss.org/nexus/content/groups/public=1288097009578 http\://repo1.maven.org/maven2=1288097009912
您可能会问我为什么使用2.8版本 – 它包含一些对我的项目至关重要的补丁。 版本2.7从maven依赖构建良好：
net.sourceforge.htmlunit htmlunit 2.7
但是当我使用它时：
net.sourceforge.htmlunit htmlunit 2.8
在构建期间出现“命令行太长”时出错：
10/26/10 9:03:27 PM BST: [ERROR] Standard error from the DataNucleus tool + org.datanucleus.enhancer.DataNucleusEnhancer : 10/26/10 9:03:27 PM BST: [ERROR] -------------------- 10/26/10 9:03:27 PM BST: [ERROR] The command line is too long.
正如我在下面的评论中提到的，我想将它们从pom中移除，因为即使它们在我的本地Maven存储库中，而maven正在构建项目，它总是说它正在尝试下载这些本地依赖项中的每一个，增加额外的时间到每个构建周期。
您没有显示任何描述确切问题的跟踪（这通常有帮助），但除非您的本地依赖项是SNAPSHOT依赖项（并且这对于手动安装的工件来说是一个糟糕的选择），我不认为您对该行为的描述是准确的。
我希望将这些jar子复制到可以通过构建过程找到它们的位置，但是没有Maven每次都尝试下载任何资源。
我的猜测是，依赖项只是缺少.pom文件，这是Maven试图下载的内容。 使用以下命令在本地存储库中安装JAR时，可以告诉Maven为您生成此pom：
mvn install：install-file -Dfile = your-artifact-1.0.jar \
[-DgroupId = org.some.group] \
[-DartifactId =你的神器]
[-Dversion = 1.0] \
[-Dpackaging = jar] \
[-DgeneratePom =真]
无论看起来多么可怕，我发现Maven在这里的行为更加可怕。
使用system范围依赖性似乎并不可怕， 这是一种可怕的， 令人沮丧的做法 ，应该在99,999％的案例中避免使用。 引用提供的链接：
system：在项目生命周期的某个阶段需要此依赖项，但这是系统特定的。 不鼓励使用此范围：这被认为是一种“高级”function，只有在您真正理解其使用的所有后果时才能使用，如果实际上无法量化则可能非常困难。 根据定义，此范围使您的构建不可移植。 在某些边缘情况下可能是必要的。 系统范围包括
元素，该元素指向此依赖项在本地计算机上的物理位置。 因此，它用于指代预期存在于给定本地机器上而不是存储库中的某个工件; 并且其路径可能因机器而异。systemPath元素可以在其路径中引用环境变量：例如${JAVA_HOME}。
只要以正确的方式使用Maven，就不会有问题。 有了system范围的依赖关系（为什么人们一直建议滥用它们？！），我预测会有更多的麻烦。
正如您所猜测的那样，我本地maven存储库中的htmlunit没有pom文件。 我也记不起我是如何安装它的。
所以我不是疯了:)显然，我的建议是解决问题并提供丢失的.pom文件。 如果您不想重新安装工件（以便Maven可以生成它们），您可以手动创建.pom 。 像这样的简单文件就足够了：
4.0.0 ze.groupId some-artifact-id XYZ
但请不要切换到system范围的依赖关系，从长远来看，这将弊大于利。
您可能会问我为什么使用2.8版本 – 它包含一些对我的项目至关重要的补丁。
你当然有充分的理由，我甚至不会讨论它们。
（…）我在构建过程中遇到“命令行太长”的错误：
这很不幸，你应该把这个问题报告给datanucleus。
org.companyname artifact versionNumber system PATH_TO_YOUR_JAR
尝试这样的事情
范围系统的依赖关系始终可用，并且不会在存储库中查找。 它们通常用于告诉Maven有关JDK或VM提供的依赖关系。 因此，系统依赖性对于解决现在由JDK提供的工件的依赖性特别有用，但是可以在之前单独下载。 典型示例是JDBC标准扩展或Java身份validation和授权服务（JAAS）。
一个简单的例子是：
... javax.sql jdbc-stdext 2.0 system ${java.home}/lib/rt.jar ...
- 资源