Tomcat 8.5上下文路径无法正常工作

1 回答

• 0

  我没有't understand why you are having problems, but I'使用NetBeans 8.2（文件>新项目...> Java Web> Web应用程序）创建了Web项目，并成功更改了上下文，因此如果我提供项目的详细信息，您可以确定哪里存在重大差异 .

  1 cat_tiger\web\META-INF\context.xml

  我的文件与您的文件相同：

  <?xml version="1.0" encoding="UTF-8"?>
  <Context copyXML="true" docBase="cat_tiger" path="/cat/lion"/>
  

  [2]运行输出

  选择项目节点，右键单击并从弹出菜单中选择 Run 以在Tomcat 8.5上运行：

  ant -f D:\\NB82\\cat_tiger -Dnb.internal.action.name=run -Ddirectory.deployment.supported=true -DforceRedeploy=false -Dnb.wait.for.caches=true -Dbrowser.context=D:\\NB82\\cat_tiger -Duser.properties.file=C:\\Users\\johndoe\\AppData\\Roaming\\NetBeans\\8.2\\build.properties run
  init:
  deps-module-jar:
  deps-ear-jar:
  deps-jar:
  library-inclusion-in-archive:
  library-inclusion-in-manifest:
  compile:
  compile-jsps:
  In-place deployment at D:\NB82\cat_tiger\build\web
  Deployment is in progress...
  deploy?config=file%3A%2FC%3A%2FUsers%2Fjohndoe%2FAppData%2FLocal%2FTemp%2Fcontext7953615149857268018.xml&path=/cat/lion
  OK - Deployed application at context path [/cat/lion]
  Start is in progress...
  start?path=/cat/lion
  OK - Started application at context path [/cat/lion]
  run-deploy:
  Browsing: http://localhost:8080/cat/lion
  run-display-browser:
  run:
  BUILD SUCCESSFUL (total time: 0 seconds)
  

  实际上，您可能不需要运行应用程序来查看问题;只需从弹出菜单中选择 Deploy 而不是 Run . 这是我从 Deploy 获得的输出：

  ant -f D:\\NB82\\cat_tiger -Dnb.internal.action.name=redeploy -Ddirectory.deployment.supported=true -DforceRedeploy=true -Dnb.wait.for.caches=true -Dbrowser.context=D:\\NB82\\cat_tiger -Duser.properties.file=C:\\Users\\johndoe\\AppData\\Roaming\\NetBeans\\8.2\\build.properties run-deploy
  init:
  deps-module-jar:
  deps-ear-jar:
  deps-jar:
  library-inclusion-in-archive:
  library-inclusion-in-manifest:
  compile:
  compile-jsps:
  Undeploying ...
  undeploy?path=/cat_tiger
  OK - Undeployed application at context path [/cat_tiger]
  In-place deployment at D:\NB82\cat_tiger\build\web
  Deployment is in progress...
  deploy?config=file%3A%2FC%3A%2FUsers%2Fjohndoe%2FAppData%2FLocal%2FTemp%2Fcontext5063723197082921373.xml&path=/cat/lion
  OK - Deployed application at context path [/cat/lion]
  Start is in progress...
  start?path=/cat/lion
  OK - Started application at context path [/cat/lion]
  run-deploy:
  BUILD SUCCESSFUL (total time: 0 seconds)
  

  [3] Tomcat日志

  以下是Tomcat日志中的部署详细信息，您可以在其中看到我的部署正确显示了上下文，而您的部署则没有：

  05-Sep-2018 23:09:09.321 INFO [http-nio-8080-exec-6] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor [C:\apache-tomcat-8.5.20\conf\Catalina\localhost\cat#lion.xml]
  05-Sep-2018 23:09:09.334 INFO [http-nio-8080-exec-6] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of configuration descriptor [C:\apache-tomcat-8.5.20\conf\Catalina\localhost\cat#lion.xml] has finished in [13] ms
  05-Sep-2018 23:09:09.338 INFO [http-nio-8080-exec-5] org.apache.catalina.util.LifecycleBase.start The start() method was called on component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/cat/lion]] after start() had already been called. The second call will be ignored.
  

  [4] C:\apache-tomcat-8.5.20\conf\Catalina\localhost\cat#lion.xml

  这是Tomcat在部署应用程序时创建的文件：

  <?xml version="1.0" encoding="UTF-8"?>
  <Context copyXML="true" docBase="D:\NB82\cat_tiger\build\web" path="/cat/lion"/>
  

  请注意 docBase 包含绝对路径 .

  [5] server.xml

  这里's the entire content. I'm使用Tomcat 8.5 . 请注意 <host> 元素与您的元素略有不同，但是当我将 copyXML="true" deployXML="true" 添加到 <host> 元素（因此看起来像你的元素）时，一切都继续正常工作：

  <?xml version="1.0" encoding="UTF-8"?>
  <Server port="8005" shutdown="SHUTDOWN">
      <Listener className="org.apache.catalina.startup.VersionLoggerListener"/>
      <Listener SSLEngine="on" className="org.apache.catalina.core.AprLifecycleListener"/>
      <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/>
      <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
      <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"/>
      <GlobalNamingResources>
          <Resource auth="Container" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" name="UserDatabase" pathname="conf/tomcat-users.xml" type="org.apache.catalina.UserDatabase"/>
      </GlobalNamingResources>
      <Service name="Catalina">
          <Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443" relaxedQueryChars="[]|{}^+\`&quot;&lt;&gt;"/>
          <Connector port="8009" protocol="AJP/1.3" redirectPort="8443"/>
          <Engine defaultHost="localhost" name="Catalina">
              <Realm className="org.apache.catalina.realm.LockOutRealm">
                  <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/>
              </Realm>
              <Host appBase="webapps" autoDeploy="true" name="localhost" unpackWARs="true">
                  <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" pattern="%h %l %u %t &quot;%r&quot; %s %b" prefix="localhost_access_log" suffix=".txt"/>
                  <Context docBase="C:\apache-tomcat-8.5.20\wtpwebapps\PlusServlet" path="/PlusServlet" reloadable="true" source="org.eclipse.jst.jee.server:PlusServlet"/>
              </Host>
          </Engine>
      </Service>
  </Server>
  

  ---

  Updated 9/6/2018:

  忽略上面给出的答案！即使它恰好适用于我的配置，但在Tomcat文档中明确禁止该方法 .

  具体而言，不应在放置在应用程序 META-INF 目录中的 context.xml 文件的 <Context> 中指定 path . 从Common Attributes section of the Tomcat 8.5 documentation中 path 描述的Context容器：

  只有在server.xml中静态定义Context时，才能使用此属性 . 在所有其他情况下，将从用于.xml上下文文件或docBase的文件名推断出该路径 . 即使在server.xml中静态定义Context，也不能设置此属性，除非docBase不在Host的appBase下，或者deployOnStartup和autoDeploy都是false . 如果未遵循此规则，则可能会导致双重部署 .

  回复于 2024-05-12T23:13:55+08:00