IDE无法识别Tomcat启动

Question

INFO - Starting ProtocolHandler [http-nio-8080]
INFO - Starting ProtocolHandler [ajp-nio-8009]
INFO - Server startup in 815 ms

Deploying on TomEE
    profile mode: false
    debug mode: false
    force redeploy: true
Starting Tomcat process...
Waiting for Tomcat...
Starting of Tomcat failed.

2）我使用的是自定义的server.xml，但现在我使用的是原来的：

<?xml version='1.0' encoding='utf-8'?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!-- Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" at this level.
     Documentation at /docs/config/server.html
 -->
<Server port="8005" shutdown="SHUTDOWN">
  <!-- TomEE plugin for Tomcat -->
  <Listener className="org.apache.tomee.catalina.ServerListener" />
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  <!-- Security listener. Documentation at /docs/config/listeners.html
  <Listener className="org.apache.catalina.security.SecurityListener" />
  -->
  <!--APR library loader. Documentation at /docs/apr.html -->
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <!-- Prevent memory leaks due to use of particular java/javax APIs-->
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources
       Documentation at /docs/jndi-resources-howto.html
  -->
  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share
       a single "Container" Note:  A "Service" is not itself a "Container",
       so you may not define subcomponents such as "Valves" at this level.
       Documentation at /docs/config/service.html
   -->
  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->
    <!--
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
        maxThreads="150" minSpareThreads="4"/>
    -->


    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL/TLS HTTP/1.1 Connector on port 8080
    -->
    <Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" xpoweredBy="false" server="Apache TomEE" />
    <!-- A "Connector" using the shared thread pool-->
    <!--
    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    -->
    <!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443
         This connector uses the NIO implementation with the JSSE engine. When
         using the JSSE engine, the JSSE configuration attributes must be used.
    -->
    <!--
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"
               maxThreads="150" SSLEnabled="true">
        <SSLHostConfig>
            <Certificate certificateKeystoreFile="conf/localhost-rsa.jks"
                         type="RSA" xpoweredBy="false" server="Apache TomEE" />
        </SSLHostConfig>
    </Connector>
    -->
    <!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2
         This connector uses the APR/native implementation. When using the
         APR/native implementation or the OpenSSL engine with NIO or NIO2 then
         the OpenSSL configuration attributes must be used.
    -->
    <!--
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"
               maxThreads="150" SSLEnabled="true" >
        <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" xpoweredBy="false" server="Apache TomEE" />
        <SSLHostConfig>
            <Certificate certificateKeyFile="conf/localhost-rsa-key.pem"
                         certificateFile="conf/localhost-rsa-cert.pem"
                         certificateChainFile="conf/localhost-rsa-chain.pem"
                         type="RSA" />
        </SSLHostConfig>
    </Connector>
    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />


    <!-- An Engine represents the entry point (within Catalina) that processes
         every request.  The Engine implementation for Tomcat stand alone
         analyzes the HTTP headers included with the request, and passes them
         on to the appropriate Host (virtual host).
         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
    -->
    <Engine name="Catalina" defaultHost="localhost">

      <!--For clustering, please take a look at documentation at:
          /docs/cluster-howto.html  (simple how to)
          /docs/config/cluster.html (reference documentation) -->
      <!--
      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords
           via a brute-force attack -->
      <Realm className="org.apache.catalina.realm.LockOutRealm">
        <!-- This Realm uses the UserDatabase configured in the global JNDI
             resources under the key "UserDatabase".  Any edits
             that are performed against this UserDatabase are immediately
             available for use by the Realm.  -->
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <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" />

      </Host>
    </Engine>
  </Service>
</Server>

3)Tomcat正确启动，我看到我的计算机中打开了端口8080。实际上，我必须手动关闭进程才能再次尝试从Netbeans运行新的程序，否则它会抱怨端口已经打开。与此同时，Netbeans只是等待，等待……在“等待Tomcat”之后的某个时候，它只是说它失败了，就像它不能识别Tomcat打开了一样。Tomcat保持运行，就像没有人与它通信一样。所以没有其他奇怪的日志。

4）在Netbans中，我只能“开始”，永远不会停止，因为它没有检测到Tomcat正在运行。所以“停止”命令被禁用，就像你说的。Tomcat正在运行，但IDE从未检测到它在运行。

5）这种情况经常发生，我无法从IDE中运行任何项目。

Netbeans日志显示：

INFO [org.netbeans.modules.tomcat5.deploy.TomcatManager]: TomEE version TOMEE_15, type TOMEE_PLUS
INFO [null]: Last record repeated again.
INFO [org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment]
org.netbeans.modules.j2ee.deployment.impl.ServerException: Starting of Tomcat failed.
    at org.netbeans.modules.j2ee.deployment.impl.ServerInstance._start(ServerInstance.java:1457)
    at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.startTarget(ServerInstance.java:1400)
    at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.startTarget(ServerInstance.java:1204)
    at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.start(ServerInstance.java:1082)
    at org.netbeans.modules.j2ee.deployment.impl.TargetServer.startTargets(TargetServer.java:547)
[catch] at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:190)
    at org.netbeans.modules.maven.j2ee.execution.DeploymentHelper.perform(DeploymentHelper.java:185)
    at org.netbeans.modules.maven.j2ee.execution.ExecutionChecker.executionResult(ExecutionChecker.java:70)
    at org.netbeans.modules.maven.execute.MavenCommandLineExecutor.run(MavenCommandLineExecutor.java:303)
    at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:128)

Answer 1

我也遇到过同样的问题，通过使用旧版本的Tomcat解决了这个问题。

我在使用Netbeans 11.1和11.3时遇到了这个问题。

我在tomcat 8.5.54和9.0.34中收到了这个错误。Tomcat在8.5.49版本中工作正常