在Linux系统下，遇到过这样的问题，项目中使用

./shutdown.sh

关闭Tomcat失败

Using CATALINA_BASE:   /usr/local/tomcat

Using CATALINA_HOME:   /usr/local/tomcat

Using CATALINA_TMPDIR: /usr/local/tomcat/temp

Using JRE_HOME:        /usr/java/jdk1.7.0_80

Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar

Jun 15, 2018 2:32:07 PM org.apache.catalina.startup.Catalina stopServer

SEVERE: Could not contact [localhost:[8006]]. Tomcat may not be running.

Jun 15, 2018 2:32:07 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.java:339)

    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)

    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)

    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

    at java.net.Socket.connect(Socket.java:579)

    at java.net.Socket.connect(Socket.java:528)

    at java.net.Socket.<init>(Socket.java:425)

    at java.net.Socket.<init>(Socket.java:208)

    at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:477)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606)

    at org.apache.catalina.startup.Bootstrap.stopServer(Bootstrap.java:408)

    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:497)

首先，查看Tomcat是否以关闭

ps -ef|grep java

如果显示以下相似信息，说明Tomcat还没有关闭

[root@instance-5f71uexu bin]# ps -ef | grep java

root      2500     1  1 12:53 ?        00:01:07 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root      3356   304  0 14:33 pts/0    00:00:00 grep --color java

root     21176     1  0 Jun13 ?        00:05:40 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     23885     1  0 Jun14 ?        00:04:09 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     24173     1  0 Jun14 ?        00:03:58 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     25179     1  0 Jun14 ?        00:03:57 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     26629     1  0 Jun14 ?        00:02:37 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/repair-tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/repair-tomcat/bin/bootstrap.jar:/usr/local/repair-tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/repair-tomcat -Dcatalina.home=/usr/local/repair-tomcat -Djava.io.tmpdir=/usr/local/repair-tomcat/temp org.apache.catalina.startup.Bootstrap start

root     28107     1  0 Jun14 ?        00:03:48 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

这里有很多，根据自己配置的查看就行。

杀死Tomcat进程

 kill -9 28107

再次查看Tomcat是否关闭

ps -ef|grep java
[root@instance-5f71uexu bin]# ps -ef | grep java

root      2500     1  1 12:53 ?        00:01:08 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root      3378   304  0 14:35 pts/0    00:00:00 grep --color java

root     21176     1  0 Jun13 ?        00:05:41 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     23885     1  0 Jun14 ?        00:04:09 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     24173     1  0 Jun14 ?        00:03:58 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     25179     1  0 Jun14 ?        00:03:57 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     26629     1  0 Jun14 ?        00:02:38 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/repair-tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/repair-tomcat/bin/bootstrap.jar:/usr/local/repair-tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/repair-tomcat -Dcatalina.home=/usr/local/repair-tomcat -Djava.io.tmpdir=/usr/local/repair-tomcat/temp org.apache.catalina.startup.Bootstrap start

可以看到这里关闭了一个Tomcat的进程了，再启动

[root@instance-5f71uexu bin]# cd /usr/local/tomcat/bin

[root@instance-5f71uexu bin]# ./startup.sh

查看启动状况：

root      2500     1  1 12:53 ?        00:01:10 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root      3408     1  3 14:35 pts/0    00:00:34 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root      3668   304  0 14:51 pts/0    00:00:00 grep --color java

root     21176     1  0 Jun13 ?        00:05:42 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     23885     1  0 Jun14 ?        00:04:11 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     24173     1  0 Jun14 ?        00:04:00 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     25179     1  0 Jun14 ?        00:03:59 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

root     26629     1  0 Jun14 ?        00:02:39 /usr/java/jdk1.7.0_80/bin/java -Djava.util.logging.config.file=/usr/local/repair-tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.security.egd=file:/dev/./urandom -server -Xms256m -Xmx3911m -Dfile.encoding=UTF-8 -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.library.path=/usr/local/apr/lib -classpath /usr/local/repair-tomcat/bin/bootstrap.jar:/usr/local/repair-tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/repair-tomcat -Dcatalina.home=/usr/local/repair-tomcat -Djava.io.tmpdir=/usr/local/repair-tomcat/temp org.apache.catalina.startup.Bootstrap start

这是公司的Linux服务器，我也不知道怎么这么多Tomcat 进程的，我自己服务器也就一个

[root@VM_0_4_centos ~]# ps -ef | grep java

root      6763     1  0 Jun08 ?        00:16:55 java -Djava.util.logging.config.file=/usr/local/tomcat/apache-tomcat-8.5.30/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Dignore.endorsed.dirs= -classpath /usr/local/tomcat/apache-tomcat-8.5.30/bin/bootstrap.jar:/usr/local/tomcat/apache-tomcat-8.5.30/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat/apache-tomcat-8.5.30 -Dcatalina.home=/usr/local/tomcat/apache-tomcat-8.5.30 -Djava.io.tmpdir=/usr/local/tomcat/apache-tomcat-8.5.30/temp org.apache.catalina.startup.Bootstrap start

root     10701  1366  0 14:55 pts/0    00:00:00 grep --color=auto java

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