开发者问题收集

maven 实施后 Webapp 部署失败

2022-01-04
263
java maven tomcat

在实施 Maven 进行依赖管理后，我在 tomcat 上部署 Web 应用程序时遇到了问题。在实施 Maven 之前，它是一个普通的 Web 应用程序，其中所有东西都是手动管理的。我开始使用框架升级应用程序以进行学习，并决定实施 Maven 进行依赖管理作为第一步。 虽然我实现了 Maven，并且从 eclipse 中一切都运行良好，但是当我在独立的 tomcat 上部署 war 文件时，它不起作用。

我在 Catalina 属性中针对 shared.loader 属性和 tomcat conf 目录内的 Catalina 文件夹下的上下文 xml 定义了我的应用程序的路径（请参阅下面的目录结构）

directoryStructure 

C:/Application/SNSS/SNSS_PROD/
                    |
                    |-->OpsMan
                    |   |
                    |   |-->WebApp
                    |   |   |->css
                    |   |   |->images
                    |   |   |->log (log4j2.xml)
                    |   |   |->jsp
                    |   |   |->resources
                    |   |   |->WEB-INF
                    |   |   |->
                    |   |
                    |   |-->WebApp_20220102
                    |   |   |->css
                    |   |   |->images
                    |   |   |->log (log4j2.xml)
                    |   |   |->jsp
                    |   |   |->resources
                    |   |   |->WEB-INF
                    |
                    |-->Tomcat9
                    |   |->conf
                    |   |   |->Catalina
                    |   |   |   |->localhost (blank folder)
                    |   |   |   |->www.snss.com
                    |   |   |   |   |
                    |   |   |   |   |->OpsMan.xml
                    |   |   |   |
                    |   |   |->catalina.properties
                    |   |   |->server.xml
                    |   |   |
                    |   |   |->Other conf files
                    |   |   |->resources
                    |   |   |->WEB-INF
                    |   |
                    |   |->(other folder like bin, lib etc)

以下是 Tomcat 配置中的相关条目

catalina.properties 

shared.loader="C:\\Applications\\SNSS\\SNSS_PROD\\OpsMan\\WebApp"

server.xml （除了默认主机标签之外，我还为我的app) 

      <Host name="www.snss.com"  appBase="C:\\Applications\\SNSS\\SNSS_PROD\\OpsMan\\WebApp"
        unpackWARs="true" autoDeploy="true">
        
    <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
           prefix="localhost_access_log" suffix=".txt"
           pattern="%h %l %u %t &quot;%r&quot; %s %b" />
           
    <alias>snss.com</alias>
  </Host>

OpsMan.xml 

<Context displayName="www.snss.com" docBase="C:\\Applications\\SNSS\\SNSS_PROD\\OpsMan\\WebApp" />

在“C:\Windows\system32\drivers\etc\hosts”文件中，已创建以下条目，并将端口代理设置为将端口 80 上的 HTTP 请求重定向到 8080。 

127.0.0.1   www.snss.com

log4j2.xml 

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" strict="false" name="ROM" packages="">
  <Properties>
    <Property name="root.dir">C:\\Applications\\SNSS\\SNSS_PROD\\OpsMan\\WebApp</Property>
    <Property name="log.dir">${root.dir}/log</Property>
  </Properties>
  <Appenders>
    <RollingFile name="RollingFile" fileName="${log.dir}/rom.log"
                 filePattern="${log.dir}/$${date:yyyy-MM}/rom-%d{yyyy-MM-dd-HH}-%i.log">
      <PatternLayout>
        <Pattern>[%t] - %d{yyyy-MMM-dd - HH:mm:ss,SSS} %-5p %C{1} %L - %m%n</Pattern>
      </PatternLayout>
      <Policies>
        <TimeBasedTriggeringPolicy interval="6" modulate="true"/>
        <SizeBasedTriggeringPolicy size="10 MB"/>
      </Policies>
    </RollingFile>
  </Appenders>
  <Loggers>
    <Root level="trace">
      <AppenderRef ref="RollingFile"/>
    </Root>
  </Loggers>
</Configuration>

pom.xml 

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>in.co.snss</groupId>
  <artifactId>OpsMan</artifactId>
  <version>22.01.1</version>
  <packaging>war</packaging>
  <dependencies>
    <dependency>
        <groupId>org.apache.tomcat</groupId>
        <artifactId>tomcat-servlet-api</artifactId>
        <version>9.0.27</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-1.2-api</artifactId>
        <version>2.17.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-configuration2</artifactId>
        <version>2.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-collections4</artifactId>
        <version>4.4</version>
    </dependency>
    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.2</version>
    </dependency>
    <dependency>
        <groupId>org.json</groupId>
        <artifactId>json</artifactId>
        <version>20200518</version>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>4.1.2</version>
    </dependency>
    <dependency>
        <groupId>net.sf.jasperreports</groupId>
        <artifactId>jasperreports</artifactId>
        <version>6.15.0</version>
    </dependency>
    <dependency>  
        <groupId>javax</groupId>    
        <artifactId>javaee-web-api</artifactId>    
        <version>6.0</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.26</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <release>12</release>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.2.1</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

“WebApp\WEB-INF\lib”文件夹中的 jar

带有 Maven 的 lib 文件夹

jars “WebApp_20220102\WEB-INF\lib”文件夹

没有 Maven 的 lib 文件夹

“WebApp\WEB-INF”文件夹中的 web.xml 

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">
  <display-name>OpsMan</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>HomeServlet</servlet-name>
    <servlet-class>in.co.snss.opsman.web.servlet.HomeServlet</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>LoginServlet</servlet-name>
    <servlet-class>in.co.snss.user.servlet.LoginServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>HomeServlet</servlet-name>
    <url-pattern>/Orders/*</url-pattern>
    <url-pattern>/Notes/*</url-pattern>
    <url-pattern>/Accounts/*</url-pattern>
    <url-pattern>/Party/*</url-pattern>
    <url-pattern>/Products/*</url-pattern>
    <url-pattern>/Reports/*</url-pattern>
    <url-pattern>/Users/*</url-pattern>
    <url-pattern>/Inventory/*</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>LoginServlet</servlet-name>
    <url-pattern>/index/*</url-pattern>
    <url-pattern>/OpsMan/*</url-pattern>
    <url-pattern>/login</url-pattern>
    <url-pattern>/logout</url-pattern>
    <url-pattern>/RegisterLicense</url-pattern>
  </servlet-mapping>
  <context-param>
    <param-name>log4jConfiguration</param-name>
    <param-value>/log/log4j2.xml</param-value>
  </context-param>
</web-app>

现在，当我启动 tomcat 时，部署 OpsMan 时出现错误。以下是控制台输出 

03-Jan-2022 16:19:03.299 WARNING [main] org.apache.tomcat.util.digester.Digester.endElement No rules found matching [Server/Service/Engine/Host/alias]
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version name:   Apache Tomcat/9.0.27
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Oct 7 2019 09:57:22 UTC
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 9.0.27.0
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Windows 10
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            10.0
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             C:\Program Files\Java\jre1.8.0_311
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_311-b11
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         C:\Applications\SNSS\SNSS_PROD\Tomcat9
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         C:\Applications\SNSS\SNSS_PROD\Tomcat9
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=.\Tomcat9\conf\logging.properties
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=.\Tomcat9
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=.\Tomcat9
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=.\Tomcat9\temp
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library [1.2.23] using APR version [1.7.0].
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
03-Jan-2022 16:19:03.299 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
03-Jan-2022 16:19:03.315 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.1.1c  28 May 2019]
03-Jan-2022 16:19:03.549 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
03-Jan-2022 16:19:03.643 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
03-Jan-2022 16:19:03.643 INFO [main] org.apache.catalina.startup.Catalina.load Server initialization in [520] milliseconds
03-Jan-2022 16:19:03.674 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
03-Jan-2022 16:19:03.674 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet engine: [Apache Tomcat/9.0.27]
03-Jan-2022 16:19:03.690 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\docs]
03-Jan-2022 16:19:03.986 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\docs] has finished in [296] ms
03-Jan-2022 16:19:03.986 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\examples]
03-Jan-2022 16:19:04.377 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\examples] has finished in [391] ms
03-Jan-2022 16:19:04.377 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\host-manager]
03-Jan-2022 16:19:04.408 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\host-manager] has finished in [31] ms
03-Jan-2022 16:19:04.408 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\manager]
03-Jan-2022 16:19:04.439 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\manager] has finished in [31] ms
03-Jan-2022 16:19:04.439 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\ROOT]
03-Jan-2022 16:19:04.549 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\Tomcat9\webapps\ROOT] has finished in [110] ms
03-Jan-2022 16:19:04.564 INFO [main] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying deployment descriptor [C:\Applications\SNSS\SNSS_PROD\Tomcat9\conf\Catalina\www.snss.com\OpsMan.xml]
03-Jan-2022 16:19:07.222 SEVERE [main] org.apache.catalina.startup.HostConfig.deployDescriptor Error deploying deployment descriptor [C:\Applications\SNSS\SNSS_PROD\Tomcat9\conf\Catalina\www.snss.com\OpsMan.xml]
        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.deployDescriptor(HostConfig.java:631)
                at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1831)
                at java.util.concurrent.Executors$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.deployDescriptors(HostConfig.java:526)
                at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:425)
                at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576)
                at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309)
                at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
                at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
                at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
                at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:936)
                at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841)
                at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
                at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
                at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
                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.core.ContainerBase.startInternal(ContainerBase.java:909)
                at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
                at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
                at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
                at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
                at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
                at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
                at org.apache.catalina.startup.Catalina.start(Catalina.java:633)
                at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
                at java.lang.reflect.Method.invoke(Unknown Source)
                at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:344)
                at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:475)
        Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[www.snss.com].StandardContext[/OpsMan]]
                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)
                ... 37 more
        Caused by: java.lang.NoClassDefFoundError: LLogger;
                at java.lang.Class.getDeclaredFields0(Native Method)
                at java.lang.Class.privateGetDeclaredFields(Unknown Source)
                at java.lang.Class.getDeclaredFields(Unknown Source)
                at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:110)
                at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:269)
                at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
                at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:69)
                at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:330)
                at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:777)
                at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:301)
                at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
                at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5051)
                at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
                ... 38 more
        Caused by: java.lang.ClassNotFoundException: Logger
                at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
                at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
                ... 51 more
03-Jan-2022 16:19:07.238 INFO [main] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of deployment descriptor [C:\Applications\SNSS\SNSS_PROD\Tomcat9\conf\Catalina\www.snss.com\OpsMan.xml] has finished in [2,689] ms
03-Jan-2022 16:19:07.238 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\css]
03-Jan-2022 16:19:07.378 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\css] has finished in [140] ms
03-Jan-2022 16:19:07.378 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\images]
03-Jan-2022 16:19:07.503 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\images] has finished in [125] ms
03-Jan-2022 16:19:07.503 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\js]
03-Jan-2022 16:19:07.628 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\js] has finished in [125] ms
03-Jan-2022 16:19:07.628 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\jsp]
03-Jan-2022 16:19:07.738 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\jsp] has finished in [110] ms
03-Jan-2022 16:19:07.738 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\log]
03-Jan-2022 16:19:07.863 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\log] has finished in [125] ms
03-Jan-2022 16:19:07.863 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\Output]
03-Jan-2022 16:19:08.034 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\Output] has finished in [171] ms
03-Jan-2022 16:19:08.050 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\resources]
03-Jan-2022 16:19:08.159 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\resources] has finished in [109] ms
03-Jan-2022 16:19:08.159 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\script]
03-Jan-2022 16:19:08.284 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [C:\Applications\SNSS\SNSS_PROD\OpsMan\WebApp\script] has finished in [125] ms
03-Jan-2022 16:19:08.284 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
03-Jan-2022 16:19:08.284 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
03-Jan-2022 16:19:08.284 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [4,642] milliseconds

使用相同的设置，如果我将“WebApp”重命名为“WebApp_New”，将“WebApp_20220102”重命名为“WebApp”（基本上是旧应用程序），那么一切都可以正常工作。

我已经比较了“WebApp”文件夹中的所有配置文件，例如log4j2.xml、web.xml 等，但无法找出有问题的条目。我还尝试将旧应用程序 (WebApp_20220102\WEB-INF\lib) 中的 jar 替换到新应用程序的 lib 文件夹中，但没有任何变化。我在部署新应用程序时仍然遇到问题，但如果我重命名 WebApp 文件夹并启动旧应用程序，它就可以正常工作。

2个回答

您缺少 log4j 实现 JAR。“带有 Maven 的 lib 文件夹”列出了 log4j- api JAR，但没有列出 log4j-core 实现。将 

<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-core</artifactId>
  <version>2.17.1</version>
</dependency>

添加到 pom.xml

Simon
2022-01-04

由于我能够在 Eclipse 中的 tomcat 上部署应用程序时运行它，因此我开始查看独立 tomcat 和 eclipse 中的配置差异。我没有发现任何差异，或者我匹配了两个服务器的配置。

之后，我决定查看 Web App 文件夹内的每个文件，发现 .class 文件的大小存在差异。我意识到，当 eclipse 将其部署到内部 tomcat 上时，它会将输出编译到目标文件夹，但是当使用 maven 完成此操作时，会在 /target/classes 文件夹中生成类文件。打包时，此文件夹被复制到 /WEB-INF/classes 文件夹。

就我而言，我不知道怎么做到的，我在项目的 WebContent/WEB-INF/classes 目录中有一个 classes 文件夹。此目录包含非常旧版本的类，大小非常小（3KB 对 10KB）。我从 WebContent/WEB-INF 文件夹中删除了 classes 目录，然后 maven 开始将 target/classes 文件夹复制到 WEB-INF/classes。这解决了这个问题。

RM_SNSS
2022-01-07