java - Tomcat 应用程序为 WEB-INF/lib 中的 Jar 抛出 java.lang.ClassNotFoundException

Question

我正在尝试添加 Boilerpipe 来对我的 Tomcat 项目进行网络抓取，但是当我这样做时，我往往会遇到问题。我将 jar 以及必要的资源（nekohtml-1.9.13.jar 和 xerces-2.9.1.jar）添加到我的 Web-INF/lib 文件夹并作为项目结构中的外部库。

但是，每次我尝试部署应用程序时，我都会java.io.ClassNotFoundException从 Tomcat 构建一段时间，但我不知道为什么。具体来说，Tomcat 告诉我访问被拒绝，但我不知道这可能意味着什么，因为它很容易访问同一文件夹中的其他 Jar。

这是Tomcat错误的完整堆栈跟踪

Error:Internal error: (java.io.FileNotFoundException) C:\Users\micro\IdeaProjects\Spectral_Phasor_Experimentation\out\artifacts\Spectral_Phasor_Experimentation_war_exploded\WEB-INF\lib\boilerpipe-1.2.0.jar (Access is denied)
java.io.FileNotFoundException: C:\Users\micro\IdeaProjects\Spectral_Phasor_Experimentation\out\artifacts\Spectral_Phasor_Experimentation_war_exploded\WEB-INF\lib\boilerpipe-1.2.0.jar (Access is denied)
    at java.base/java.io.FileOutputStream.open0(Native Method)
    at java.base/java.io.FileOutputStream.open(FileOutputStream.java:292)
    at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:235)
    at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:185)
    at com.intellij.openapi.util.io.FileUtil.openOutputStream(FileUtil.java:436)
    at com.intellij.openapi.util.io.FileUtil.performCopy(FileUtil.java:405)
    at com.intellij.openapi.util.io.FileUtil.copyContent(FileUtil.java:399)
    at org.jetbrains.jps.incremental.FSOperations.copy(FSOperations.java:413)
    at org.jetbrains.jps.incremental.artifacts.instructions.FilterCopyHandler.copyFile(FilterCopyHandler.java:40)
    at org.jetbrains.jps.incremental.artifacts.instructions.FileBasedArtifactRootDescriptor.copyFromRoot(FileBasedArtifactRootDescriptor.java:87)
    at org.jetbrains.jps.incremental.artifacts.IncArtifactBuilder.build(IncArtifactBuilder.java:160)
    at org.jetbrains.jps.incremental.artifacts.IncArtifactBuilder.build(IncArtifactBuilder.java:50)
    at org.jetbrains.jps.incremental.IncProjectBuilder.buildTarget(IncProjectBuilder.java:1034)
    at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:1015)
    at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:1071)
    at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:965)
    at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:794)
    at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:376)
    at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:178)
    at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:139)
    at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:288)
    at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:121)
    at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:228)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:830)
Please perform full project rebuild (Build | Rebuild Project)

我还在某处读到，在 WEB-INF/lib 文件夹中复制 Tomcat 的现有库是不好的，但我不确定我是否这样做了。这是我的 lib 文件夹中的内容：（其中大部分是由 IntelliJ 自动导入的）

javax.annotation.jar
javax.ejb.jar
javax.jms.jar
javax.persistence.jar
javax.resource.jar
javax.servlet.jar
javax.servlet.jsp.jar
javax.servlet.jsp.jstl.jar
javax.transaction.jar
joda-time-2.10.5.jar
jstl-1.2.jar
mysql-connector-java-5.1.48-bin.jar
taglibs-standard-jstlel-1.2.5.jar

任何帮助将不胜感激。

谢谢。

标签： javatomcatboilerpipe