Netbeans 不会启动 Tomcat

【问题标题】：Netbeans won't start TomcatNetbeans 不会启动 Tomcat
【发布时间】：2023-03-16 20:10:02
【问题描述】：

我正在尝试使用 Netbeans 为我的家庭作业启动 Tomcat。因此，我通过单击工具 -> 服务器 -> 添加服务器 -> Apache Tomcat 或 TomEE -> /location/of/tomcat/directory/ 将 Tomcat 添加到 Netbeans 但在将服务器添加到 Netbeans 时我没有提供用户名和密码，因为我不想每次使用此服务器时都被提示输入密码。然后，我创建了一个 Web 应用程序，并在“Web Pages”文件夹下添加了一个非常简单的 index.html 文件以及一个 css 文件和一个简单的 jsp 文件。当我尝试通过单击播放按钮启动 Tomcat 时，我卡在了这一行：

21-Apr-2020 00:13:00.705 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [1,833] milliseconds

等待一段时间后，我从 Netbean 的控制台收到一条消息，说 Tomcat 无法启动。当我通过键入 localhost:8080 检查浏览器时，我得到以下信息 enter image description here

请参阅下面的完整输出：

 NOTE: Picked up JDK_JAVA_OPTIONS:  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
21-Apr-2020 00:17:51.345 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version name:   Apache Tomcat/9.0.34
21-Apr-2020 00:17:51.358 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Apr 3 2020 12:02:52 UTC
21-Apr-2020 00:17:51.358 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 9.0.34.0
21-Apr-2020 00:17:51.358 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Mac OS X
21-Apr-2020 00:17:51.358 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            10.15.4
21-Apr-2020 00:17:51.358 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          x86_64
21-Apr-2020 00:17:51.358 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /Library/Java/JavaVirtualMachines/jdk-14.jdk/Contents/Home
21-Apr-2020 00:17:51.359 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           14+36-1461
21-Apr-2020 00:17:51.359 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
21-Apr-2020 00:17:51.359 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /Users/kevinchen/Documents/apache-tomcat-9.0.34
21-Apr-2020 00:17:51.359 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /Users/kevinchen/Documents/apache-tomcat-9.0.34
21-Apr-2020 00:17:51.388 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.lang=ALL-UNNAMED
21-Apr-2020 00:17:51.389 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.base/java.io=ALL-UNNAMED
21-Apr-2020 00:17:51.389 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
21-Apr-2020 00:17:51.389 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/Users/kevinchen/Documents/apache-tomcat-9.0.34/conf/logging.properties
21-Apr-2020 00:17:51.389 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
21-Apr-2020 00:17:51.389 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dhttp.nonProxyHosts=localhost|127.0.0.1|Kevins-MacBook-Pro-2.local
21-Apr-2020 00:17:51.389 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
21-Apr-2020 00:17:51.389 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
21-Apr-2020 00:17:51.390 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027
21-Apr-2020 00:17:51.390 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
21-Apr-2020 00:17:51.390 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/Users/kevinchen/Documents/apache-tomcat-9.0.34
21-Apr-2020 00:17:51.390 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/Users/kevinchen/Documents/apache-tomcat-9.0.34
21-Apr-2020 00:17:51.390 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/Users/kevinchen/Documents/apache-tomcat-9.0.34/temp
21-Apr-2020 00:17:51.390 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/kevinchen/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
21-Apr-2020 00:17:51.722 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
21-Apr-2020 00:17:51.793 INFO [main] org.apache.catalina.startup.Catalina.load Server initialization in [762] milliseconds
21-Apr-2020 00:17:51.864 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
21-Apr-2020 00:17:51.865 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet engine: [Apache Tomcat/9.0.34]
21-Apr-2020 00:17:51.889 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/docs]
21-Apr-2020 00:17:52.230 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/docs] has finished in [342] ms
21-Apr-2020 00:17:52.230 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/manager]
21-Apr-2020 00:17:52.299 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/manager] has finished in [69] ms
21-Apr-2020 00:17:52.301 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/examples]
21-Apr-2020 00:17:52.902 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/examples] has finished in [602] ms
21-Apr-2020 00:17:52.903 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/ROOT]
21-Apr-2020 00:17:52.938 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/ROOT] has finished in [35] ms
21-Apr-2020 00:17:52.939 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/host-manager]
21-Apr-2020 00:17:52.992 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/Users/kevinchen/Documents/apache-tomcat-9.0.34/webapps/host-manager] has finished in [54] ms
21-Apr-2020 00:17:53.003 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
21-Apr-2020 00:17:53.024 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [1,230] milliseconds

来自日志：

21-Apr-2020 00:01:00.525 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()
21-Apr-2020 00:01:00.526 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()
21-Apr-2020 00:01:00.528 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: attributeAdded('StockTicker', 'async.Stockticker@2b95e48b')
21-Apr-2020 00:06:17.423 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextDestroyed()
21-Apr-2020 00:06:17.423 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextDestroyed()
21-Apr-2020 00:06:33.489 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()
21-Apr-2020 00:06:33.490 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()
21-Apr-2020 00:06:33.493 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: attributeAdded('StockTicker', 'async.Stockticker@2b95e48b')
21-Apr-2020 00:12:54.964 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextDestroyed()
21-Apr-2020 00:12:54.964 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextDestroyed()
21-Apr-2020 00:13:00.616 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()
21-Apr-2020 00:13:00.616 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()
21-Apr-2020 00:13:00.617 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: attributeAdded('StockTicker', 'async.Stockticker@efde75f')
21-Apr-2020 00:16:40.591 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextDestroyed()
21-Apr-2020 00:16:40.591 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextDestroyed()
21-Apr-2020 00:17:52.885 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()
21-Apr-2020 00:17:52.885 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()
21-Apr-2020 00:17:52.891 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: attributeAdded('StockTicker', 'async.Stockticker@62ea3440')

在“运行”控制台上：

init:
deps-module-jar:
deps-ear-jar:
deps-jar:
library-inclusion-in-archive:
library-inclusion-in-manifest:
compile:
compile-jsps:
Starting Tomcat process...
Waiting for Tomcat...
Starting of Tomcat failed.
BUILD FAILED (total time: 3 minutes 2 seconds)

【问题讨论】：

  • Tomcat 可能已经在运行，这就是它无法启动的原因。您可以尝试从终端杀死 Tomcat 进程，检查 localhost:8080 是否没有响应并从 Netbeans 重新运行它吗？

标签： java jsp tomcat netbeans tomcat9


【解决方案1】：

我在 Tomcat 的较新版本上也遇到了同样的问题（似乎它开始于 9.0.30 左右）。我切换到旧版本（9.0.24）并开始工作。不知道是什么坏了，但在较新的版本中发生了一些事情

【讨论】：

    【解决方案2】：

    如果您已经安装了 Apache Tomcat，那么您的 Apache 服务可能已经在运行并且它与 Netbeans 冲突。您可以停止自动运行的 apache 服务，然后在 Netbeans 中运行您的应用程序。

    退房

    start->Services->hit enter

    如果正在运行，请停止 Apache Tomcat 然后转到 Netbeans 右键单击​​项目并选择运行。 Netbean 将启动 tomcat 并将您的 web 应用程序部署到 Tomcat 服务器上，现在它将成功运行。

    【讨论】：

      【解决方案3】：

      尝试检查启动/停止端口。我遇到了同样的问题，我解决了选择不同的端口。

      【讨论】：

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