Eclipse 新建maven项目没有.classPath文件/不能创建新的资源文件/不能创建新的java类。。。。

最新推荐文章于 2020-10-26 20:01:26 发布
最新推荐文章于 2020-10-26 20:01:26 发布
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分类专栏： Java语言 文章标签： java maven eclipse
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本文链接：https://blog.youkuaiyun.com/zuoyexingchennn/article/details/50315487
本文介绍了在Eclipse中创建Maven项目时遇到的问题及解决方法。主要问题是无法创建sourcefolder并提示不是Java项目，解决方案包括更换较低版本的Maven、清理本地仓库等。

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前几天在使用eclipse创建新的maven项目的时候，发现不能创建新的source folder，在创建source folder的时候提示is not a java project。

打开项目目录发现，并没有.classPath文件。并且不能创建新的java类。

而使用eclipse创建普通java工程的时候，则没有以上的情况。

所以，确定应该是maven的问题。

解决办法：

第一步：
更换稍微低版本的maven（我开始使用的eclipse是luna版本，JDK为java 1.6，maven为3.2.5有问题，将maven更换为3.1.0）

第二部：
删除maven本地仓库的内容

重启eclipse即可

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/opt/homebrew/opt/openjdk@17/libexec/openjdk.jdk/Contents/Home/bin/java -Dmaven.multiModuleProjectDirectory=/Users/remin/Desktop/webrme/ruoyi-ai -Djansi.passthrough=true -Dmaven.home=/usr/local/apache-maven-3.9.11 -Dclassworlds.conf=/usr/local/apache-maven-3.9.11/bin/m2.conf -Dmaven.ext.class.path=/Applications/IntelliJ IDEA CE.app/Contents/plugins/maven/lib/maven-event-listener.jar -javaagent:/Applications/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar=57664 -Dfile.encoding=UTF-8 -classpath /usr/local/apache-maven-3.9.11/boot/plexus-classworlds.license:/usr/local/apache-maven-3.9.11/boot/plexus-classworlds-2.9.0.jar org.codehaus.classworlds.Launcher -Didea.version=2025.1.3 -s /usr/local/apache-maven-3.9.11/conf/settings.xml -Dmaven.repo.local=/usr/local/apache-maven-3.9.11/maven-repository install [INFO] Scanning for projects... Downloading from aliyunmaven: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-starter-parent/3.4.4/spring-boot-starter-parent-3.4.4.pom [WARNING] Failed to create tracking file parent '/usr/local/apache-maven-3.9.11/maven-repository/org/springframework/boot/spring-boot-starter-parent/3.4.4/spring-boot-starter-parent-3.4.4.pom.lastUpdated' java.nio.file.AccessDeniedException: /usr/local/apache-maven-3.9.11/maven-repository/org at sun.nio.fs.UnixException.translateToIOException (UnixException.java:90) at sun.nio.fs.UnixException.rethrowAsIOException (UnixException.java:106) at sun.nio.fs.UnixException.rethrowAsIOException (UnixException.java:111) at sun.nio.fs.UnixFileSystemProvider.createDirectory (UnixFileSystemProvider.java:397) at java.nio.file.Files.createDirectory (Files.java:700) at java.nio.file.Files.createAndCheckIsDirectory (Files.java:807) at java.nio.file.Files.createDirectories (Files.java:793) at org.eclipse.aether.internal.impl.DefaultTrackingFileManager.update (DefaultTrackingFileManager.java:77) at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.write (DefaultUpdateCheckManager.java:529) at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.touchArtifact (DefaultUpdateCheckManager.java:476) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.evaluateDownloads (DefaultArtifactResolver.java:636) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:545) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:449) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:261) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact (DefaultArtifactResolver.java:243) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact (DefaultRepositorySystem.java:278) at org.apache.maven.project.ProjectModelResolver.resolveModel (ProjectModelResolver.java:172) at org.apache.maven.project.ProjectModelResolver.resolveModel (ProjectModelResolver.java:218) at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally (DefaultModelBuilder.java:1033) at org.apache.maven.model.building.DefaultModelBuilder.readParent (DefaultModelBuilder.java:825) at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:336) at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:248) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:447) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:546) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:546) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:367) at org.apache.maven.graph.DefaultGraphBuilder.collectProjects (DefaultGraphBuilder.java:351) at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor (DefaultGraphBuilder.java:342) at org.apache.maven.graph.DefaultGraphBuilder.build (DefaultGraphBuilder.java:76) at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:448) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:197) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283) at org.apache.maven.cli.MavenCli.main (MavenCli.java:206) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:569) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314) at org.codehaus.classworlds.Launcher.main (Launcher.java:41) [ERROR] Internal error: java.io.UncheckedIOException: java.nio.file.AccessDeniedException: /usr/local/apache-maven-3.9.11/maven-repository/org -> [Help 1] org.apache.maven.InternalErrorException: Internal error: java.io.UncheckedIOException: java.nio.file.AccessDeniedException: /usr/local/apache-maven-3.9.11/maven-repository/org at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:109) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283) at org.apache.maven.cli.MavenCli.main (MavenCli.java:206) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:569) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314) at org.codehaus.classworlds.Launcher.main (Launcher.java:41) Caused by: java.io.UncheckedIOException: java.nio.file.AccessDeniedException: /usr/local/apache-maven-3.9.11/maven-repository/org at org.eclipse.aether.internal.impl.DefaultTrackingFileManager.update (DefaultTrackingFileManager.java:80) at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.write (DefaultUpdateCheckManager.java:529) at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.touchArtifact (DefaultUpdateCheckManager.java:476) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.evaluateDownloads (DefaultArtifactResolver.java:636) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:545) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:449) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:261) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact (DefaultArtifactResolver.java:243) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact (DefaultRepositorySystem.java:278) at org.apache.maven.project.ProjectModelResolver.resolveModel (ProjectModelResolver.java:172) at org.apache.maven.project.ProjectModelResolver.resolveModel (ProjectModelResolver.java:218) at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally (DefaultModelBuilder.java:1033) at org.apache.maven.model.building.DefaultModelBuilder.readParent (DefaultModelBuilder.java:825) at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:336) at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:248) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:447) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:546) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:546) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:367) at org.apache.maven.graph.DefaultGraphBuilder.collectProjects (DefaultGraphBuilder.java:351) at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor (DefaultGraphBuilder.java:342) at org.apache.maven.graph.DefaultGraphBuilder.build (DefaultGraphBuilder.java:76) at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:448) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:197) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283) at org.apache.maven.cli.MavenCli.main (MavenCli.java:206) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:569) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314) at org.codehaus.classworlds.Launcher.main (Launcher.java:41) Caused by: java.nio.file.AccessDeniedException: /usr/local/apache-maven-3.9.11/maven-repository/org at sun.nio.fs.UnixException.translateToIOException (UnixException.java:90) at sun.nio.fs.UnixException.rethrowAsIOException (UnixException.java:106) at sun.nio.fs.UnixException.rethrowAsIOException (UnixException.java:111) at sun.nio.fs.UnixFileSystemProvider.createDirectory (UnixFileSystemProvider.java:397) at java.nio.file.Files.createDirectory (Files.java:700) at java.nio.file.Files.createAndCheckIsDirectory (Files.java:807) at java.nio.file.Files.createDirectories (Files.java:793) at org.eclipse.aether.internal.impl.DefaultTrackingFileManager.update (DefaultTrackingFileManager.java:77) at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.write (DefaultUpdateCheckManager.java:529) at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.touchArtifact (DefaultUpdateCheckManager.java:476) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.evaluateDownloads (DefaultArtifactResolver.java:636) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:545) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:449) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:261) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact (DefaultArtifactResolver.java:243) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact (DefaultRepositorySystem.java:278) at org.apache.maven.project.ProjectModelResolver.resolveModel (ProjectModelResolver.java:172) at org.apache.maven.project.ProjectModelResolver.resolveModel (ProjectModelResolver.java:218) at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally (DefaultModelBuilder.java:1033) at org.apache.maven.model.building.DefaultModelBuilder.readParent (DefaultModelBuilder.java:825) at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:336) at org.apache.maven.model.building.DefaultModelBuilder.build (DefaultModelBuilder.java:248) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:447) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:546) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:546) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:410) at org.apache.maven.project.DefaultProjectBuilder.build (DefaultProjectBuilder.java:367) at org.apache.maven.graph.DefaultGraphBuilder.collectProjects (DefaultGraphBuilder.java:351) at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor (DefaultGraphBuilder.java:342) at org.apache.maven.graph.DefaultGraphBuilder.build (DefaultGraphBuilder.java:76) at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:448) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:197) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283) at org.apache.maven.cli.MavenCli.main (MavenCli.java:206) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:569) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314) at org.codehaus.classworlds.Launcher.main (Launcher.java:41) [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/InternalErrorException 进程已结束，退出代码为 1
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IDEA.app/Contents/plugins/java/lib/aether-dependency-resolver.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/java/lib/maven-resolver-connector-basic.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/java/lib/maven-resolver-transport-file.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/java/lib/maven-resolver-transport-http.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/JavaEE/lib/jasper-v2-rt.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/Kotlin/lib/jps/kotlin-jps-plugin.jar:/Applications/IntelliJ IDEA.app/Contents/lib/util-8.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/eclipse/lib/eclipse-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/eclipse/lib/eclipse-common.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/JavaEE/lib/javaee-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/uiDesigner/lib/jps/java-guiForms-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/platform-langInjection/lib/java-langInjection-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/javaFX/lib/javaFX-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/javaFX/lib/javaFX-common.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/Groovy/lib/groovy-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/Groovy/lib/groovy-constants-rt.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/maven/lib/maven-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/gradle-java/lib/gradle-jps.jar:/Applications/IntelliJ IDEA.app/Contents/plugins/JPA/lib/jps/javaee-jpa-jps.jar" org.jetbrains.jps.cmdline.BuildMain 127.0.0.1 51208 7afa89d5-1c1a-475b-b7f1-716032bd02c2 /Users/sunhuidong/Library/Caches/JetBrains/IntelliJIdea2024.1/compile-server nice: /Library/Java/JavaVirtualMachines/jdk-21.jdk/Contents/Home/bin/java: No such file or directory
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随后，在IDE（如IntelliJ IDEA或Eclipse）中新建一个Maven项目[^1]。 2. **导入MyBatis及相关依赖** 在`pom.xml`文件中添加必要的依赖项，包括MyBatis核心库、数据库驱动以及日志组件等。以下是典型的POM配置示例...
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