关于同时在Tomcat下部署两个war包

[qq_23952185]

在Tomcat下分别单独部署两个项目时，是正常的，都可以访问到项目的主页，可是在同时部署这两个项目时，就只能访问一个项目的主页，另一个项目访问主页时报404错误，这是为什么呢？
另外在启动Tomcat时也没有报错，访问的时候报错如下：

这是为什么呀？

[孟子E章]

看一下localhost.log里面的内容

[街头小贩]

可是在同时部署这两个项目时 re: 不太懂？只要conf/server.xml中设置不同Host是没问题的

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">
      </Host>
      <Host name="www.域名.net" appBase="项目所在的路径" unpackWARs="true" autoDeploy="true">
      </Host>

[qq_34360784]

引用 2 楼 xiaofanku 的回复:

可是在同时部署这两个项目时 re: 不太懂？只要conf/server.xml中设置不同Host是没问题的

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">
      </Host>
      <Host name="www.域名.net" appBase="项目所在的路径" unpackWARs="true" autoDeploy="true">
      </Host>

host中的name地址不应该是一样的吗？只是项目名称不同而已

[街头小贩]

引用 3 楼 qq_34360784 的回复:

[quote=引用 2 楼 xiaofanku 的回复:] 可是在同时部署这两个项目时 re: 不太懂？只要conf/server.xml中设置不同Host是没问题的

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">
      </Host>
      <Host name="www.域名.net" appBase="项目所在的路径" unpackWARs="true" autoDeploy="true">
      </Host>

host中的name地址不应该是一样的吗？只是项目名称不同而已[/quote] 哪你说说你的两个war包期望的访问域名各是什么

[Kason Wong]

https://blog.csdn.net/yongyuai/article/details/81113588 如果你的项目是拷贝过来的，可以参考，我的解决了

[星抹微云]

我也遇到这个问题。
22-Feb-2020 08:42:00.124 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [D:\Tomcat 9.0\webapps\wlw.war]
22-Feb-2020 08:42:27.846 信息 [Catalina-utility-2] org.apache.jasper.servlet.TldScanner.scanJars 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。
22-Feb-2020 08:42:27.887 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [D:\Tomcat 9.0\webapps\wlw.war] has finished in [27,763] ms
22-Feb-2020 09:02:33.098 警告 [main] org.apache.catalina.core.StandardServer.await Invalid shutdown command [] received
22-Feb-2020 09:10:27.373 警告 [main] org.apache.catalina.core.StandardServer.await Invalid shutdown command [] received
22-Feb-2020 09:14:37.566 警告 [main] org.apache.catalina.core.StandardServer.await Invalid shutdown command [] received
22-Feb-2020 09:17:51.124 警告 [main] org.apache.catalina.core.StandardServer.await Invalid shutdown command [] received
22-Feb-2020 09:25:40.145 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/wlw]
22-Feb-2020 09:25:42.198 警告 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [wlw] 注册了JDBC驱动程序 [com.alibaba.druid.proxy.DruidDriver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
22-Feb-2020 09:25:42.198 警告 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web应用程序 [wlw] 注册了JDBC驱动程序 [com.mysql.cj.jdbc.Driver]，但在Web应用程序停止时无法注销它。 为防止内存泄漏，JDBC驱动程序已被强制取消注册。
22-Feb-2020 09:25:42.199 警告 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads Web应用程序[wlw]似乎启动了一个名为[Abandoned connection cleanup thread]的线程，但未能停止它。这很可能会造成内存泄漏。线程的堆栈跟踪：[
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:70)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)]
22-Feb-2020 09:25:42.200 警告 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads Web应用程序[wlw]似乎启动了一个名为[Druid-ConnectionPool-Create-1641659953]的线程，但未能停止它。这很可能会造成内存泄漏。线程的堆栈跟踪：[
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2728)]
22-Feb-2020 09:25:42.200 警告 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads Web应用程序[wlw]似乎启动了一个名为[Druid-ConnectionPool-Destroy-1641659953]的线程，但未能停止它。这很可能会造成内存泄漏。线程的堆栈跟踪：[
java.lang.Thread.sleep(Native Method)
com.alibaba.druid.pool.DruidDataSource$DestroyConnectionThread.run(DruidDataSource.java:2824)]
22-Feb-2020 09:25:42.201 警告 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads Web应用程序[wlw]似乎启动了一个名为[System Clock]的线程，但未能停止它。这很可能会造成内存泄漏。线程的堆栈跟踪：[
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(Unknown Source)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)]
22-Feb-2020 09:25:42.202 警告 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads Web应用程序[wlw]似乎启动了一个名为[pool-1-thread-1]的线程，但未能停止它。这很可能会造成内存泄漏。线程的堆栈跟踪：[
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)]
22-Feb-2020 09:25:42.206 严重 [Catalina-utility-1] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [wlw] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@155567c]) and a value of type [com.alibaba.druid.wall.spi.WallVisitorUtils.WallTopStatementContext] (value [com.alibaba.druid.wall.spi.WallVisitorUtils$WallTopStatementContext@2ca473e9]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
22-Feb-2020 09:25:45.545 信息 [Abandoned connection cleanup thread] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading 非法访问：此Web应用程序实例已停止。无法加载[]。为了调试以及终止导致非法访问的线程，将抛出以下堆栈跟踪。
java.lang.IllegalStateException: 非法访问：此Web应用程序实例已停止。无法加载[]。为了调试以及终止导致非法访问的线程，将抛出以下堆栈跟踪。
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1385)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1038)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.checkContextClassLoaders(AbandonedConnectionCleanupThread.java:96)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:69)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
22-Feb-2020 09:25:53.099 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [D:\Tomcat 9.0\webapps\wlw.war]
22-Feb-2020 09:26:22.180 信息 [Catalina-utility-2] org.apache.jasper.servlet.TldScanner.scanJars 至少有一个JAR被扫描用于TLD但尚未包含TLD。 为此记录器启用调试日志记录，以获取已扫描但未在其中找到TLD的完整JAR列表。 在扫描期间跳过不需要的JAR可以缩短启动时间和JSP编译时间。
22-Feb-2020 09:26:22.208 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [D:\Tomcat 9.0\webapps\wlw.war] has finished in [29,109] ms
22-Feb-2020 09:33:12.457 信息 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [D:\Tomcat 9.0\webapps\insect.war]
22-Feb-2020 09:33:25.123 严重 [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR 部署 Web 应用程序 archive [D:\Tomcat 9.0\webapps\insect.war] 时出错
java.lang.IllegalStateException: Error starting child
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1849)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1620)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:305)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1151)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1353)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1357)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1335)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/insect]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
... 25 more