问题描述
我正在尝试部署一个 Jetty9 应用程序，我已经按照客户给出的一些松散指示安装了该应用程序。我已经能够在端口 8081 上启动服务器，但在我进行 curl localhost:8081 测试时一直出现 404 错误。
然后我使用以下内容设置 /opt/jetty9/contexts/root.xml：
<?xml version="1.0" encoding="ISO-8859-1"?>
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
<Set name="contextpath">/</Set>
<Set name="war">
/opt/jetty9/myproj/myproj.war
</Set>
<Set name="virtualHosts">
<Array type="java.lang.String">
<Item>myproj.mydomain.com</Item>
</Array>
</Set>
</Configure>
这一切似乎没问题，但是当我启动服务器时，这是我得到的堆栈跟踪：
2021-02-07 12:40:00.536:INFO::main: Logging initialized @344ms to org.eclipse.jetty.util.log.StdErrLog
2021-02-07 12:40:00.717:INFO:oejs.Server:main: jetty-9.4.18.v20190429; built: 2019-04-29T20:42:08.989Z; git: e1bc35120a6617ee3df052294e433f3a25ce7097; jvm 1.8.0_282-b08
2021-02-07 12:40:00.736:INFO:oejdp.ScanningAppProvider:main: Deployment monitor [file:///opt/jetty9/contexts/] at interval 1
2021-02-07 12:40:01.069:INFO:oeja.AnnotationConfiguration:main: Scanning elapsed time=98ms
2021-02-07 12:40:01.215:INFO:oejs.session:main: DefaultSessionIdManager workerName=node0
2021-02-07 12:40:01.215:INFO:oejs.session:main: No SessionScavenger set,using defaults
2021-02-07 12:40:01.216:INFO:oejs.session:main: node0 Scavenging every 660000ms
Loading config from:/opt/configuration.properties
Setting the system to DEBUG mode
java.io.FileNotFoundException: /opt/configuration.properties (No such file or directory)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:93)
at com.cit.common.utils.ConfigurationManager.getContents(ConfigurationManager.java:243)
at com.cit.common.utils.ConfigurationManager.readConfigContent(ConfigurationManager.java:256)
at com.cit.common.utils.ConfigurationManager.<init>(ConfigurationManager.java:53)
at com.cit.common.utils.ConfigurationManager.getInstance(ConfigurationManager.java:79)
at com.cit.common.utils.DaemonManager.start(DaemonManager.java:22)
at com.cit.common.utils.ServletListener.contextinitialized(ServletListener.java:69)
at org.eclipse.jetty.server.handler.ContextHandler.callContextinitialized(ContextHandler.java:957)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextinitialized(ServletContextHandler.java:553)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:922)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:365)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1497)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1459)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:852)
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:278)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:46)
at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:192)
at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:502)
at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:151)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:172)
at org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:436)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:65)
at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:610)
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:529)
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:392)
at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:145)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:576)
at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:238)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:167)
at org.eclipse.jetty.server.Server.start(Server.java:418)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:119)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.Server.doStart(Server.java:382)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1572)
at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1512)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1511)
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.eclipse.jetty.start.Main.invokeMain(Main.java:220)
at org.eclipse.jetty.start.Main.start(Main.java:490)
at org.eclipse.jetty.start.Main.main(Main.java:77)
2021-02-07 12:40:01.244:WARN:oejw.WebAppContext:main: Failed startup of context o.e.j.w.WebAppContext@6895a785{myproj,/,file:///tmp/jetty-0.0.0.0-8081-myproj.war-_-myproj.mydomain.com-2499359659101806391.dir/webapp/,UNAVAILABLE,myproj.mydomain.com}{/opt/jetty9/myproj/myproj.war}
java.lang.NullPointerException
at com.cit.common.utils.ConfigurationManager.<init>(ConfigurationManager.java:53)
at com.cit.common.utils.ConfigurationManager.getInstance(ConfigurationManager.java:79)
at com.cit.common.utils.DaemonManager.start(DaemonManager.java:22)
at com.cit.common.utils.ServletListener.contextinitialized(ServletListener.java:69)
at org.eclipse.jetty.server.handler.ContextHandler.callContextinitialized(ContextHandler.java:957)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextinitialized(ServletContextHandler.java:553)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:922)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:365)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1497)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1459)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:852)
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:278)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:46)
at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:192)
at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:502)
at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:151)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:172)
at org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:436)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:65)
at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:610)
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:529)
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:392)
at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:145)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:576)
at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:238)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:167)
at org.eclipse.jetty.server.Server.start(Server.java:418)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:119)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.Server.doStart(Server.java:382)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1572)
at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1512)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1511)
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.eclipse.jetty.start.Main.invokeMain(Main.java:220)
at org.eclipse.jetty.start.Main.start(Main.java:490)
at org.eclipse.jetty.start.Main.main(Main.java:77)
2021-02-07 12:40:01.256:INFO:oejs.AbstractConnector:main: Started ServerConnector@49ec71f8{HTTP/1.1,[http/1.1]}{0.0.0.0:8081}
2021-02-07 12:40:01.272:INFO:oejus.SslContextFactory:main: x509=X509@8f4ea7c(jetty,h=[],w=[]) for Server@436813f3[provider=null,keyStore=file:///opt/jetty9/etc/keystore,trustStore=file:///opt/jetty9/etc/keystore]
2021-02-07 12:40:01.273:INFO:oejus.SslContextFactory:main: x509=X509@74fe5c40(1,trustStore=file:///opt/jetty9/etc/keystore]
2021-02-07 12:40:01.322:INFO:oejs.AbstractConnector:main: Started ServerConnector@689604d9{SSL,[ssl,http/1.1]}{0.0.0.0:4430}
2021-02-07 12:40:01.322:INFO:oejs.Server:main: Started @1130ms
这里明显的错误是没有 /opt/configuration.properties...但是我找不到任何文件甚至引用了这个文件，或者任何关于这个配置应该是什么及其内容的在线内容？我根本不知道码头，或者根本不知道用于网络的 Java，我试图通过部署这个应用程序来帮某人一个忙，但过去几天我一直在用头撞墙......任何指针都是真的赞赏。谢谢
解决方法
从您发布的堆栈跟踪来看，在我看来，Jetty 已启动并正在启动 Web 应用程序。此 Web 应用程序配置了一些侦听器，并且侦听器正在尝试初始化 ConfigurationManager。
由于所有这些看起来您的中间件安装没问题，而且 Web 应用程序仍有需求，请询问您的客户这是否与应用程序相关。