不能 运行 maven 项目。试试 运行 '--enable-preview'
Cant run maven project. Try running with '--enable-preview'
我只是无法将我的 Maven spring 启动项目 运行...我想我已经尝试了互联网上的所有方法。我现在很绝望。
这是我尝试 运行 项目时的输出：
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ mvn -e org.springframework.boot:spring-boot-maven-plugin:run
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------------< net.candidatis:tierone >-----------------------
[INFO] Building tierone 0.0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] >>> spring-boot-maven-plugin:2.4.1:run (default-cli) > test-compile @ tierone >>>
[INFO]
[INFO] --- maven-resources-plugin:3.2.0:resources (default-resources) @ tierone ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Using 'UTF-8' encoding to copy filtered properties files.
[INFO] Copying 1 resource
[INFO] Copying 2 resources
[INFO] The encoding used to copy filtered properties files have not been set. This means that the same encoding will be used to copy filtered properties files as when copying other filtered resources. This might not be what you want! Run your build with --debug to see which files might be affected. Read more at https://maven.apache.org/plugins/maven-resources-plugin/examples/filtering-properties-files.html
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ tierone ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 59 source files to /var/www/git/miw/tiger/TigerT1/target/classes
[INFO]
[INFO] --- maven-resources-plugin:3.2.0:testResources (default-testResources) @ tierone ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Using 'UTF-8' encoding to copy filtered properties files.
[INFO] skip non existing resourceDirectory /var/www/git/miw/tiger/TigerT1/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ tierone ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] <<< spring-boot-maven-plugin:2.4.1:run (default-cli) < test-compile @ tierone <<<
[INFO]
[INFO]
[INFO] --- spring-boot-maven-plugin:2.4.1:run (default-cli) @ tierone ---
[INFO] Attaching agents: []
Error: LinkageError occurred while loading main class net.candidatis.tierone.TieroneApplication
java.lang.UnsupportedClassVersionError: Preview features are not enabled for net/candidatis/tierone/TieroneApplication (class file version 59.65535). Try running with '--enable-preview'
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8.449 s
[INFO] Finished at: 2021-04-20T11:35:12+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.4.1:run (default-cli) on project tierone: Application finished with exit code: 1 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.4.1:run (default-cli) on project tierone: Application finished with exit code: 1
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:64)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.apache.maven.plugin.MojoExecutionException: Application finished with exit code: 1
at org.springframework.boot.maven.RunMojo.runWithForkedJvm (RunMojo.java:101)
at org.springframework.boot.maven.AbstractRunMojo.doRunWithForkedJvm (AbstractRunMojo.java:296)
at org.springframework.boot.maven.AbstractRunMojo.run (AbstractRunMojo.java:261)
at org.springframework.boot.maven.AbstractRunMojo.execute (AbstractRunMojo.java:233)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:64)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR]
[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/MojoExecutionException
我的pom.xml文件
<properties>
<java.version>15</java.version>
</properties>
.
.
.
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<release>15</release> <!-- <release>13/14/15</release> -->
<compilerArgs>--enable-preview</compilerArgs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M3</version>
<configuration>
<argLine>--enable-preview</argLine>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
我已将 maven 环境变量 MAVEN_OPTS="--enable-preview" 添加到 PATH。
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ echo $MAVEN_OPTS
--enable-preview
我创造了
我在我的项目 .mvn 子文件夹中创建了一个 jvm.config 文件
olw@candidatis:/var/www/git/miw/tiger/TigerT1/.mvn$ cat jvm.config
--enable-preview
Maven 使用 Java 15
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ mvn -version
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /opt/apache-maven-3.6.3
Java version: 15.0.2, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-15-oracle
Default locale: de_AT, platform encoding: UTF-8
OS name: "linux", version: "4.2.0-42-generic", arch: "amd64", family: "unix"
我的 JAVA_HOME 变量指向那个库
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ echo $JAVA_HOME
/usr/lib/jvm/java-15-oracle
全部在我的路径中：
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ echo $PATH
/usr/lib/jvm/java-15-oracle/bin/java:/opt/apache-maven-3.6.3/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
我找到的所有解决方案都只是关于我已经完成的。
有人可以帮我吗？
此致...
我怀疑 Maven 的 jvm.config 不起作用的原因是因为这些参数适用于运行 Maven 的 JVM，但是 Spring Boot 的 run 目标是分叉一个新的 JVM 进程没有那些参数。
您可以使用 fork 配置 属性 禁用分叉，以便您的应用程序与 Maven 在同一 JVM 中运行，或者为分叉进程指定 jvmArguments。
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
...
</excludes>
<fork>false</fork><!-- jvmArguments OR this, but not both -->
<jvmArguments>--enable-preview</jvmArguments>
</configuration>
</plugin>
关于这 2 个属性以及其他可能有用的属性的文档是 here
我只是无法将我的 Maven spring 启动项目 运行...我想我已经尝试了互联网上的所有方法。我现在很绝望。
这是我尝试 运行 项目时的输出：
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ mvn -e org.springframework.boot:spring-boot-maven-plugin:run
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------------< net.candidatis:tierone >-----------------------
[INFO] Building tierone 0.0.1
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] >>> spring-boot-maven-plugin:2.4.1:run (default-cli) > test-compile @ tierone >>>
[INFO]
[INFO] --- maven-resources-plugin:3.2.0:resources (default-resources) @ tierone ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Using 'UTF-8' encoding to copy filtered properties files.
[INFO] Copying 1 resource
[INFO] Copying 2 resources
[INFO] The encoding used to copy filtered properties files have not been set. This means that the same encoding will be used to copy filtered properties files as when copying other filtered resources. This might not be what you want! Run your build with --debug to see which files might be affected. Read more at https://maven.apache.org/plugins/maven-resources-plugin/examples/filtering-properties-files.html
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ tierone ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 59 source files to /var/www/git/miw/tiger/TigerT1/target/classes
[INFO]
[INFO] --- maven-resources-plugin:3.2.0:testResources (default-testResources) @ tierone ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Using 'UTF-8' encoding to copy filtered properties files.
[INFO] skip non existing resourceDirectory /var/www/git/miw/tiger/TigerT1/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ tierone ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] <<< spring-boot-maven-plugin:2.4.1:run (default-cli) < test-compile @ tierone <<<
[INFO]
[INFO]
[INFO] --- spring-boot-maven-plugin:2.4.1:run (default-cli) @ tierone ---
[INFO] Attaching agents: []
Error: LinkageError occurred while loading main class net.candidatis.tierone.TieroneApplication
java.lang.UnsupportedClassVersionError: Preview features are not enabled for net/candidatis/tierone/TieroneApplication (class file version 59.65535). Try running with '--enable-preview'
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8.449 s
[INFO] Finished at: 2021-04-20T11:35:12+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.4.1:run (default-cli) on project tierone: Application finished with exit code: 1 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.4.1:run (default-cli) on project tierone: Application finished with exit code: 1
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:64)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.apache.maven.plugin.MojoExecutionException: Application finished with exit code: 1
at org.springframework.boot.maven.RunMojo.runWithForkedJvm (RunMojo.java:101)
at org.springframework.boot.maven.AbstractRunMojo.doRunWithForkedJvm (AbstractRunMojo.java:296)
at org.springframework.boot.maven.AbstractRunMojo.run (AbstractRunMojo.java:261)
at org.springframework.boot.maven.AbstractRunMojo.execute (AbstractRunMojo.java:233)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:64)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR]
[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/MojoExecutionException
我的pom.xml文件
<properties>
<java.version>15</java.version>
</properties>
.
.
.
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<release>15</release> <!-- <release>13/14/15</release> -->
<compilerArgs>--enable-preview</compilerArgs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M3</version>
<configuration>
<argLine>--enable-preview</argLine>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
我已将 maven 环境变量 MAVEN_OPTS="--enable-preview" 添加到 PATH。
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ echo $MAVEN_OPTS
--enable-preview
我创造了
我在我的项目 .mvn 子文件夹中创建了一个 jvm.config 文件
olw@candidatis:/var/www/git/miw/tiger/TigerT1/.mvn$ cat jvm.config
--enable-preview
Maven 使用 Java 15
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ mvn -version
Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /opt/apache-maven-3.6.3
Java version: 15.0.2, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-15-oracle
Default locale: de_AT, platform encoding: UTF-8
OS name: "linux", version: "4.2.0-42-generic", arch: "amd64", family: "unix"
我的 JAVA_HOME 变量指向那个库
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ echo $JAVA_HOME
/usr/lib/jvm/java-15-oracle
全部在我的路径中：
olw@candidatis:/var/www/git/miw/tiger/TigerT1$ echo $PATH
/usr/lib/jvm/java-15-oracle/bin/java:/opt/apache-maven-3.6.3/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
我找到的所有解决方案都只是关于我已经完成的。
有人可以帮我吗？
此致...
我怀疑 Maven 的 jvm.config 不起作用的原因是因为这些参数适用于运行 Maven 的 JVM，但是 Spring Boot 的 run 目标是分叉一个新的 JVM 进程没有那些参数。
您可以使用 fork 配置 属性 禁用分叉，以便您的应用程序与 Maven 在同一 JVM 中运行，或者为分叉进程指定 jvmArguments。
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
...
</excludes>
<fork>false</fork><!-- jvmArguments OR this, but not both -->
<jvmArguments>--enable-preview</jvmArguments>
</configuration>
</plugin>
关于这 2 个属性以及其他可能有用的属性的文档是 here