【发布时间】：2022-01-19 10:18:07
【问题描述】：
我想在 java/maven new project-archetype webapp 中创建简单的 Web 应用程序，在我创建它并使用命令 mvn tomcat7:run 后出现 http 404 错误，知道为什么吗？ 如果我在我的经理上使用经典部署战争文件正在工作，但如果我想通过原型 webapp 使用 1.method 和 tomcat7:run 不起作用。 我复制 http://localhost:8080/servlety 并粘贴网络浏览器并不起作用。
PS C:\Users\*******\IdeaProjects\untitled\servlety> mvn tomcat7:run
[INFO] Scanning for projects...
[INFO]
[INFO] ----------------------< wynny.servlety:servlety >-----------------------
[INFO] Building servlety Maven Webapp 1.0-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ servlety >>>
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ servlety ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory C:\Users\Patrik Severín\IdeaProjects\untitled\servlety\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ servlety ---
[INFO] No sources to compile
[INFO]
[INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ servlety <<<
[INFO]
[INFO]
[INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ servlety ---
[INFO] Running war on http://localhost:8080/servlety
[INFO] Using existing Tomcat server configuration at C:\Users\Patrik Severín\IdeaProjects\untitled\servlety\target\tomcat
[INFO] create webapp with contextPath: /servlety
jan 19, 2022 11:16:23 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
jan 19, 2022 11:16:23 AM org.apache.coyote.AbstractProtocol init
SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-bio-8080"]
java.net.BindException: Address already in use: bind <null>:8080
at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:407)
at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:623)
at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:434)
at org.apache.coyote.http11.AbstractHttp11JsseProtocol.init(AbstractHttp11JsseProtocol.java:119)
at org.apache.catalina.connector.Connector.initInternal(Connector.java:981)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.core.StandardService.initInternal(StandardService.java:559)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139)
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341)
at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1238)
at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:592)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:972)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:293)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:196)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
Caused by: java.net.BindException: Address already in use: bind
at java.base/sun.nio.ch.Net.bind0(Native Method)
at java.base/sun.nio.ch.Net.bind(Net.java:555)
at java.base/sun.nio.ch.Net.bind(Net.java:544)
at java.base/sun.nio.ch.NioSocketImpl.bind(NioSocketImpl.java:643)
at java.base/java.net.ServerSocket.bind(ServerSocket.java:388)
at java.base/java.net.ServerSocket.<init>(ServerSocket.java:274)
at java.base/java.net.ServerSocket.<init>(ServerSocket.java:218)
at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:49)
at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:394)
... 35 more
jan 19, 2022 11:16:23 AM org.apache.catalina.core.StandardService initInternal
SEVERE: Failed to initialize connector [Connector[HTTP/1.1-8080]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-8080]]
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
at org.apache.catalina.core.StandardService.initInternal(StandardService.java:559)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:814)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139)
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341)
at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1238)
at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:592)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:972)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:293)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:196)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed
at org.apache.catalina.connector.Connector.initInternal(Connector.java:983)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
... 30 more
Caused by: java.net.BindException: Address already in use: bind <null>:8080
at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:407)
at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:623)
at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:434)
at org.apache.coyote.http11.AbstractHttp11JsseProtocol.init(AbstractHttp11JsseProtocol.java:119)
at org.apache.catalina.connector.Connector.initInternal(Connector.java:981)
... 31 more
Caused by: java.net.BindException: Address already in use: bind
at java.base/sun.nio.ch.Net.bind0(Native Method)
at java.base/sun.nio.ch.Net.bind(Net.java:555)
at java.base/sun.nio.ch.Net.bind(Net.java:544)
at java.base/sun.nio.ch.NioSocketImpl.bind(NioSocketImpl.java:643)
at java.base/java.net.ServerSocket.bind(ServerSocket.java:388)
at java.base/java.net.ServerSocket.<init>(ServerSocket.java:274)
at java.base/java.net.ServerSocket.<init>(ServerSocket.java:218)
at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:49)
at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:394)
... 35 more
jan 19, 2022 11:16:23 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Tomcat
jan 19, 2022 11:16:23 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47
【问题讨论】：
-
这看起来像问题：
: Address already in use: bind除了使用 7 年以上的旧插件（tomcat？）之外还有什么特殊原因吗？ -
我在关注使用 tomcat7:run 的视频，所以这是原因，但如果有 tomcat9 所以命令必须看起来像 mvn tomcat9:run ？