如何從終端執行 spring-boot:run 以進行遠程調試

Question

我正在嘗試運行./mvnw spring-boot:run命令，以便我可以對該進程進行遠程調試。

我試過

 ./mvnw exec:exec 
           -Dexec.executable="java" 
           -Dexec.args="-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005"
           spring-boot:run

我得到了Listening for transport dt_socket at address: 5005的日志

但是我收到錯誤並且 maven 進程退出

[INFO] --- exec-maven-plugin:1.5.0:exec (default-cli) @ sample-project ---
Listening for transport dt_socket at address: 5005
Usage: java [-options] class [args...]
           (to execute a class)
   or  java [-options] -jar jarfile [args...]
           (to execute a jar file)
where options include:
    -d32          use a 32-bit data model if available
    -d64          use a 64-bit data model if available
    -server       to select the "server" VM
                  The default VM is server.

    -cp <class search path of directories and zip/jar files>
    -classpath <class search path of directories and zip/jar files>
                  A ; separated list of directories, JAR archives,
                  and ZIP archives to search for class files.
    -D<name>=<value>
                  set a system property
    -verbose:[class|gc|jni]
                  enable verbose output
    -version      print product version and exit
    -version:<value>
                  Warning: this feature is deprecated and will be removed
                  in a future release.
                  require the specified version to run
    -showversion  print product version and continue
    -jre-restrict-search | -no-jre-restrict-search
                  Warning: this feature is deprecated and will be removed
                  in a future release.
                  include/exclude user private JREs in the version search
    -? -help      print this help message
    -X            print help on non-standard options
    -ea[:<packagename>...|:<classname>]
    -enableassertions[:<packagename>...|:<classname>]
                  enable assertions with specified granularity
    -da[:<packagename>...|:<classname>]
    -disableassertions[:<packagename>...|:<classname>]
                  disable assertions with specified granularity
    -esa | -enablesystemassertions
                  enable system assertions
    -dsa | -disablesystemassertions
                  disable system assertions
    -agentlib:<libname>[=<options>]
                  load native agent library <libname>, e.g. -agentlib:hprof
                  see also, -agentlib:jdwp=help and -agentlib:hprof=help
    -agentpath:<pathname>[=<options>]
                  load native agent library by full pathname
    -javaagent:<jarpath>[=<options>]
                  load Java programming language agent, see java.lang.instrument
    -splash:<imagepath>
                  show splash screen with specified image
See http://www.oracle.com/technetwork/java/javase/documentation/index.html for more details.
[ERROR] Command execution failed.
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
        at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:404)
        at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:166)
        at org.codehaus.mojo.exec.ExecMojo.executeCommandLine(ExecMojo.java:764)
        at org.codehaus.mojo.exec.ExecMojo.executeCommandLine(ExecMojo.java:711)
        at org.codehaus.mojo.exec.ExecMojo.execute(ExecMojo.java:289)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
        at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.maven.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:39)
        at org.apache.maven.wrapper.WrapperExecutor.execute(WrapperExecutor.java:122)
        at org.apache.maven.wrapper.MavenWrapperMain.main(MavenWrapperMain.java:50)
[INFO] ------------------------------------------------------------------------

如何從終端發送 execute spring-boot:run以便我可以將其用於遠程調試？

注意我使用 Maven Wrapper 來執行 Maven 生命周期過程，因此，我無權訪問mvnDebug

Answer 1

如果您已經在項目中使用spring-boot:run來運行應用程序，那么只需按照插件文檔中的說明來調試服務器....

https://docs.spring.io/spring-boot/docs/2.4.x/maven-plugin/reference/htmlsingle/#run-example-debug

mvn spring-boot:run \
    -Dspring-boot.run.jvmArguments="-Xdebug \
          -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005"

如果您的項目中有spring-boot插件，那么只需使用spring-boot.run.jvmArguments屬性

如果您還沒有使用 spring-boot 插件，那么您不應該將 spring-boot:run 傳遞給 Java。 Java對此一無所知。 要從命令行運行 jar，請使用“java -jar”...，因此需要在 exec:exec 命令中反映出來。 此外，您還需要查看 exec 插件以了解如何將其傳遞給 jvm 參數（這是設置調試所需的參數）。 只需使用 spring-boot 插件就容易一些。