无法联系 localhost:8005。关闭tomcat时Tomcat可能未运行错误答案

【问题标题】：Could not contact localhost:8005. Tomcat may not be running error while shutdown tomcat无法联系 localhost:8005。关闭tomcat时Tomcat可能未运行错误
【发布时间】：2017-12-30 22:52:45
【问题描述】：

您好，我正在尝试关闭和启动 tomcat 服务器。但是我在运行shutdown.sh时遇到了错误。请检查以下错误并建议我完成。

错误：

Using CATALINA_BASE:   /opt/tomcat8
Using CATALINA_HOME:   /opt/tomcat8
Using CATALINA_TMPDIR: /opt/tomcat8/temp
Using JRE_HOME:        /usr/java/jdk1.8.0_74
Using CLASSPATH:       /opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-ju                                                                                        li.jar
Jul 24, 2017 11:01:47 PM org.apache.catalina.startup.Catalina stopServer
SEVERE: Could not contact localhost:8005. Tomcat may not be running.
Jul 24, 2017 11:01:48 PM org.apache.catalina.startup.Catalina stopServer
SEVERE: Catalina.stop:
java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.ja                                                                                        va:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocket                                                                                        Impl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java                                                                                        :188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at java.net.Socket.connect(Socket.java:538)
        at java.net.Socket.<init>(Socket.java:434)
        at java.net.Socket.<init>(Socket.java:211)

另请查找日志：

24-Jul-2017 23:48:28.884 SEVERE [main] org.apache.catalina.core.StandardServer.await StandardServer.await: create[localhost:8005]: 
 java.net.BindException: Address already in use
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
    at java.net.ServerSocket.bind(ServerSocket.java:375)
    at java.net.ServerSocket.<init>(ServerSocket.java:237)
    at org.apache.catalina.core.StandardServer.await(StandardServer.java:420)
    at org.apache.catalina.startup.Catalina.await(Catalina.java:717)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:663)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:351)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485)

24-Jul-2017 23:48:28.884 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8082"]
24-Jul-2017 23:48:28.884 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
24-Jul-2017 23:48:28.884 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina
24-Jul-2017 23:48:28.988 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8082"]
24-Jul-2017 23:48:28.990 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8082"]
24-Jul-2017 23:48:28.992 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"]
24-Jul-2017 23:48:28.992 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-8009"]

【问题讨论】：

你不能同时拥有这两个条件。可能是绑定错误首先发生，因此 Tomcat 自行关闭。无论如何，如果你得到“连接被拒绝”，它就没有运行。所以没有什么可以关闭的。所以你没有问题。
172.22.68.60:8080 在浏览器中出现以下错误此页面无法显示 •确保网址nap11rh6as510:8006 正确。 •使用您的搜索引擎查找页面。 •几分钟后刷新页面。
此页面无法显示 •确保网址172.22.68.60:8082正确。 •使用您的搜索引擎查找页面。 •几分钟后刷新页面。

标签： java apache tomcat tomcat8

【解决方案1】：

在 8005 端口上运行了一些应用程序，导致 tomcat 无法在该端口上绑定网络。您的 shutdown.sh 将抛出异常，因为服务器尚未启动（因为启动服务器时出现问题）

方案一（推荐）：在/opt/tomcat8/conf/server.xml中将端口从8005改为8006
解决方案 2：请检查 netstat -tulnp | grep 8005 使用 8005 的应用程序并将其关闭。

【讨论】：

感谢您的回复，我尝试将 server.xml 中的 8005 更改为 8006。但是 8006 也会出现同样的错误。
另外，我得到低于“netstat -tulnp | grep 8005”的输出（并非所有进程都可以识别，不会显示非拥有进程信息，您必须是 root 才能看到它全部。）tcp 0 0 ::ffff:127.0.0.1:8005 :::* LISTEN 15268/java
这意味着你的tomcat正在运行并且绑定到127.0.0.1:8005。一次又一次地更改端口将无济于事。在上述情况下，您的进程 ID 为 15268。使用命令kill -9 15268 强制终止tomcat 并使用/TOMCAT_HOME/bin/catalina.sh start 重新启动。干杯。
解决方案 1（推荐）：在 /opt/tomcat8/conf/server.xml 中将端口从 8005 更改为 8006 - 为我工作。谢谢 Harneet。
Windows 用户可以试试 netstat -ano | findstr 8005 查看哪个进程正在使用 8005 端口。

【解决方案2】：

如果时间戳正确，则表明您的 tomcat 启动在 23:00 左右失败，您尝试在 11:00 关闭一个不存在的 tomcat 服务

【讨论】：

日志中的服务器时差

【解决方案3】：

您可以尝试添加导出 JRE_HOME=$JAVA_HOME/jre 在 /etc/profile 中，然后运行源 /etc/profile 它对我有用。

【讨论】：

【解决方案4】：

http://blog.51cto.com/zero01/2053974。我今天遇到同样的问题。当我想执行shudown.sh时，日志显示tomcat可能没有运行，连接到8005端口被拒绝。当我使用netstat -atunp时，我发现没有进程监听8005端口。所以tomcat应该无法启动。我搜索，并在下面显示的链接中找到答案。关键是改$JAVA_HOME/jre/lib/security/java.security。要更改的数据是在'random'之前添加char'u'：

securerandom.source=file:/dev/urandom

或者在 Tomcat 的 CATALINA_OPTS 中设置 -Dsecurerandom.source=file:/dev/./urandom。

它有效。这有助于在系统熵低的情况下由于“/dev/random”读取中的某些操作阻塞而导致 Tomcat 启动不完整的特定场景。 Tomcat 关闭端口仅在完全启动后进行侦听，因此如果启动尝试挂起在“/dev/random”读取中或由于任何其他问题，则关闭端口未在侦听并且依赖于它的关闭尝试失败连接被拒绝错误。如果启动在“/dev/random”中挂起，则 urandom 更改会解决此问题，因为 /dev/urandom 永远不会阻塞并挂起等待系统熵。

CATALINA_PID 可以设置为使用 pid 文件和 OS 信号关闭 Tomcat，而不是关闭端口。

【讨论】：

【解决方案5】：

尝试从 ./catalina.sh 开始运行一切都好吗然后它会出现在屏幕上否则会显示一些错误就像我的情况

[root@localhost bin]# ./catalina.sh run
Using CATALINA_BASE:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_HOME:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_TMPDIR: /root/Desktop/tomcat/apache-tomcat-8.5.23/temp
Using JRE_HOME:        /root/Desktop/jdk1.8.0_144/jre
Using CLASSPATH:       /root/Desktop/tomcat/apache-tomcat-8.5.23/bin/bootstrap.jar:/root/Desktop/tomcat/apache-tomcat-8.5.23/bin/tomcat-juli.jar
Invalid maximum heap size: -Xmx512MB
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

改变内存堆大小然后它肯定会工作

[root@localhost bin]# ./catalina.sh run
Using CATALINA_BASE:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_HOME:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_TMPDIR: /root/Desktop/tomcat/apache-tomcat-8.5.23/temp
Using JRE_HOME:        /root/Desktop/jdk1.8.0_144/jre
Using CLASSPATH:       /root/Desktop/tomcat/apache-tomcat-8.5.23/bin/bootstrap.jar:/root/Desktop/tomcat/apache-tomcat-8.5.23/bin/tomcat-juli.jar
10-Oct-2017 02:28:13.782 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.5.23
10-Oct-2017 02:28:13.808 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Sep 28 2017 10:30:11 UTC
10-Oct-2017 02:28:13.808 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.5.23.0
10-Oct-2017 02:28:13.808 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux
10-Oct-2017 02:28:13.808 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            3.10.0-123.el7.x86_64
10-Oct-2017 02:28:13.809 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
10-Oct-2017 02:28:13.809 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /root/Desktop/jdk1.8.0_144/jre
10-Oct-2017 02:28:13.809 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_144-b01
10-Oct-2017 02:28:13.809 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
10-Oct-2017 02:28:13.810 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /root/Desktop/tomcat/apache-tomcat-8.5.23
10-Oct-2017 02:28:13.810 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /root/Desktop/tomcat/apache-tomcat-8.5.23
10-Oct-2017 02:28:13.810 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/root/Desktop/tomcat/apache-tomcat-8.5.23/conf/logging.properties
10-Oct-2017 02:28:13.811 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
10-Oct-2017 02:28:13.811 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
10-Oct-2017 02:28:13.811 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
10-Oct-2017 02:28:13.811 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/root/Desktop/tomcat/apache-tomcat-8.5.23
10-Oct-2017 02:28:13.811 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/root/Desktop/tomcat/apache-tomcat-8.5.23
10-Oct-2017 02:28:13.812 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/root/Desktop/tomcat/apache-tomcat-8.5.23/temp
10-Oct-2017 02:28:13.812 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib]
10-Oct-2017 02:28:15.306 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8081"]
10-Oct-2017 02:28:15.518 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
10-Oct-2017 02:28:15.551 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
10-Oct-2017 02:28:15.558 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
10-Oct-2017 02:28:15.568 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 4756 ms
10-Oct-2017 02:28:15.869 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
10-Oct-2017 02:28:15.870 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.23
10-Oct-2017 02:28:16.072 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/ROOT]
10-Oct-2017 02:28:18.435 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/ROOT] has finished in [2,362] ms
10-Oct-2017 02:28:18.436 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/docs]
10-Oct-2017 02:28:18.540 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/docs] has finished in [89] ms
10-Oct-2017 02:28:18.541 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/examples]
10-Oct-2017 02:28:20.151 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/examples] has finished in [1,611] ms
10-Oct-2017 02:28:20.152 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/host-manager]
10-Oct-2017 02:28:20.320 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/host-manager] has finished in [168] ms
10-Oct-2017 02:28:20.321 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/manager]
10-Oct-2017 02:28:20.438 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/root/Desktop/tomcat/apache-tomcat-8.5.23/webapps/manager] has finished in [117] ms
10-Oct-2017 02:28:20.461 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8081"]
10-Oct-2017 02:28:20.540 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
10-Oct-2017 02:28:20.547 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 4978 ms



^C10-Oct-2017 02:29:29.604 INFO [Thread-5] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8081"]
10-Oct-2017 02:29:29.695 INFO [Thread-5] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
10-Oct-2017 02:29:29.748 INFO [Thread-5] org.apache.catalina.core.StandardService.stopInternal Stopping service [Catalina]
10-Oct-2017 02:29:30.063 INFO [Thread-5] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8081"]
10-Oct-2017 02:29:30.069 INFO [Thread-5] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"]
10-Oct-2017 02:29:30.077 INFO [Thread-5] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8081"]
10-Oct-2017 02:29:30.094 INFO [Thread-5] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-8009"]
[root@localhost bin]# ./startup.sh
Using CATALINA_BASE:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_HOME:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_TMPDIR: /root/Desktop/tomcat/apache-tomcat-8.5.23/temp
Using JRE_HOME:        /root/Desktop/jdk1.8.0_144/jre
Using CLASSPATH:       /root/Desktop/tomcat/apache-tomcat-8.5.23/bin/bootstrap.jar:/root/Desktop/tomcat/apache-tomcat-8.5.23/bin/tomcat-juli.jar

Tomcat 已启动。然后再次尝试关闭

from /bin# ./shutdown
[root@localhost bin]# ./shutdown.sh
Using CATALINA_BASE:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_HOME:   /root/Desktop/tomcat/apache-tomcat-8.5.23
Using CATALINA_TMPDIR: /root/Desktop/tomcat/apache-tomcat-8.5.23/temp
Using JRE_HOME:        /root/Desktop/jdk1.8.0_144/jre
Using CLASSPATH:       /root/Desktop/tomcat/apache-tomcat-8.5.23/bin/bootstrap.jar:/root/Desktop/tomcat/apache-tomcat-8.5.23/bin/tomcat-juli.jar

祝你好运

【讨论】：