我想将服务部署到2台服务器。我在一台服务器上成功,但在另一台服务器上失败。实际上,我尽力使它们的环境相同。错误日志如下:
2013-01-21 22:08:18.178:WARN:oejuc.AbstractLifeCycle:FAILED jsp: java.lang.NoSuchFieldError: IS_SECURITY_ENABLED java.lang.NoSuchFieldError: IS_SECURITY_ENABLED at org.apache.jasper.compiler.JspRuntimeContext.<init>(JspRuntimeContext.java:197) at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:150) at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:492) at org.eclipse.jetty.servlet.ServletHolder.doStart(ServletHolder.java:312) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59) at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:776) at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:258) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1213) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:699) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:454) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59) at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36) at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:183) at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:491) at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:138) at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:142) at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:53) at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:604) at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:535) at org.eclipse.jetty.util.Scanner.scan(Scanner.java:398) at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:332) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59) at org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:118) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59) at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:552) at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:227) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59) at org.eclipse.jetty.util.component.AggregateLifeCycle.doStart(AggregateLifeCycle.java:58) at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:53) at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:91) at org.eclipse.jetty.server.Server.doStart(Server.java:263) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:59) at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1215) at java.security.AccessController.doPrivileged(Native Method) at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1138) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.jetty.start.Main.invokeMain(Main.java:457) at org.eclipse.jetty.start.Main.start(Main.java:602) at org.eclipse.jetty.start.Main.main(Main.java:82)
感谢您的任何帮助。
java.lang.NoSuchFieldError: IS_SECURITY_ENABLED
这是Jasper JSP编译器内部类之一的一部分。该错误表明您(或Maven)出于某种原因在Webapp的/WEB- INF/lib文件夹中包含了Jasper JSP编译器JAR文件,而这些JAR文件应该已经由目标容器提供(在您的情况下为Jetty)。
/WEB- INF/lib
这样,只有在您的Web应用程序包含与目标容器具有 完全相同 版本的Jasper JAR文件时,它才起作用。但是,毕竟这不是正确的方法。这些Jasper JAR文件不属于webapp的/WEB-INF/lib。它们应该 已经 由目标容器提供。您需要在webapp的中删除它们/WEB-INF/lib。
/WEB-INF/lib
我不是Maven英雄,但是,到目前为止,您需要告诉它/WEB-INF/lib在构建的WAR文件夹中不要包含Jasper JAR文件。您可以通过将其依赖范围设置为来实现provided。
provided