如何解决如何为payara micro设置空上下文根？
我的应用程序可在不设置任何上下文根的情况下使用payara服务器，但是payara micro将默认上下文根设置为我的war文件的名称。如果使用payara micro，如何将上下文根设置为空？
其中一种方法是将战争名称设置为ROOT.war，但使用该名称，在部署时会出现以下错误。我尝试将xerces-2.9.1 jar放在--addLibs中，但不起作用。
2020-08-20T21:36:53.110+0200] [] [SEVERE] [] [javax.enterprise.system.tools.deployment.common] [tid: _ThreadID=1 _ThreadName=main] [timeMillis: 1597952213110] [levelValue: 1000] [[
Exception while invoking class com.sun.enterprise.web.WebApplication start method
java.lang.Exception: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: java.lang.AbstractMethodError
at com.sun.enterprise.web.WebApplication.start(WebApplication.java:136)
at org.glassfish.internal.data.EngineRef.start(EngineRef.java:123)
at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:280)
at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:344)
at com.sun.enterprise.v3.server.ApplicationLifecycle.initialize(ApplicationLifecycle.java:584)
at fish.payara.deployment.admin.InitializeAllApplicationsCommand.execute(InitializeAllApplicationsCommand.java:75)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:558)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:554)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:360)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:553)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:584)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:576)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:360)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:575)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1496)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:120)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1878)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1754)
at com.sun.enterprise.admin.cli.embeddable.CommandExecutorImpl.executeCommand(CommandExecutorImpl.java:183)
at com.sun.enterprise.admin.cli.embeddable.CommandExecutorImpl.run(CommandExecutorImpl.java:96)
at fish.payara.micro.impl.PayaraMicroImpl.bootStrap(PayaraMicroImpl.java:1063)
at fish.payara.micro.impl.PayaraMicroImpl.create(PayaraMicroImpl.java:211)
at fish.payara.micro.impl.PayaraMicroImpl.main(PayaraMicroImpl.java:200)
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 fish.payara.micro.boot.loader.MainMethodRunner.run(MainMethodRunner.java:50)
at fish.payara.micro.boot.loader.Launcher.launch(Launcher.java:114)
at fish.payara.micro.boot.loader.Launcher.launch(Launcher.java:73)
at fish.payara.micro.boot.PayaraMicroLauncher.create(PayaraMicroLauncher.java:87)
at fish.payara.micro.boot.PayaraMicroLauncher.main(PayaraMicroLauncher.java:71)
at fish.payara.micro.PayaraMicro.main(PayaraMicro.java:397)
]]
解决方法
首先，您不会因为将应用程序重命名为ROOT.war而收到错误消息。如果在最新版本的Payara Micro上发生这种情况，则应提出一个github问题：https://github.com/payara/Payara/issues
现在回到问题。您可以将--contextroot命令行选项设置为/来设置上下文根：
java -jar payara-micro.jar --contextroot / app.war
如果部署多个应用程序或资源，则可以在部署文件的名称中指定上下文根，并用冒号（或Windows上的分号）分隔，例如：
java -jar payara-micro.jar app.war:/
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