Run alicloud server again. Start from scratch. log change server

For the first time

/usr/local

stay Official website Download the latest version

http://mirror.bit.edu.cn/apache/tomcat/tomcat-9/v9.0.31/bin/apache-tomcat-9.0.31.tar.gz

[root@*** local]# pwd
/usr/local
[root@*** local]# wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-9/v9.0.30/bin/apache-tomcat-9.0.30.tar.gz
--2020-02-20 17:24:44--  http://mirror.bit.edu.cn/apache/tomcat/tomcat-9/v9.0.30/bin/apache-tomcat-9.0.30.tar.gz
Resolving mirror.bit.edu.cn... 202.204.80.77, 219.143.204.117, 2001:da8:204:1205::22
Connecting to mirror.bit.edu.cn|202.204.80.77|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2020-02-20 17:24:46 ERROR 404: Not Found.

[root@*** local]# wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-9/v9.0.31/bin/apache-tomcat-9.0.31.tar.gz
--2020-02-20 17:27:28--  http://mirror.bit.edu.cn/apache/tomcat/tomcat-9/v9.0.31/bin/apache-tomcat-9.0.31.tar.gz
Resolving mirror.bit.edu.cn... 202.204.80.77, 219.143.204.117, 2001:da8:204:1205::22
Connecting to mirror.bit.edu.cn|202.204.80.77|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 11042076 (11M) [application/octet-stream]
Saving to: "apache-tomcat-9.0.31.tar.gz"

100%[==================================================>] 11,042,076  1.57M/s   in 6.6s    

2020-02-20 17:27:34 (1.60 MB/s) - "apache-tomcat-9.0.31.tar.gz" saved [11042076/11042076]

[root@*** local]# ls
aegis                        bin    include  libexec    nginx     redis  src
apache-tomcat-9.0.31.tar.gz  etc    lib      memcached  openssl   sbin   tomcat
apr                          games  lib64    mysql      pureftpd  share
[root@*** local]# tar -zxf apache-tomcat-9.0.31.tar.gz
[root@*** local]# ls
aegis                        apr  games    lib64      mysql    pureftpd  share
apache-tomcat-9.0.31         bin  include  libexec    nginx    redis     src
apache-tomcat-9.0.31.tar.gz  etc  lib      memcached  openssl  sbin      tomcat
[root@*** local]#

[root@*** local]# cd apache-tomcat-9.0.31

Published under webapps. (2020-2-20 17:31:41)

[root@*** apache-tomcat-9.0.31]# cd bin
[root@*** bin]# ls
bootstrap.jar       commons-daemon-native.tar.gz  makebase.sh       tomcat-juli.jar
catalina.bat        configtest.bat                setclasspath.bat  tomcat-native.tar.gz
catalina.sh         configtest.sh                 setclasspath.sh   tool-wrapper.bat
catalina-tasks.xml  daemon.sh                     shutdown.bat      tool-wrapper.sh
ciphers.bat         digest.bat                    shutdown.sh       version.bat
ciphers.sh          digest.sh                     startup.bat       version.sh
commons-daemon.jar  makebase.bat                  startup.sh
[root@*** bin]# sh startup.sh 
Using CATALINA_BASE:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_HOME:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-9.0.31/temp
Using JRE_HOME:        /usr/java/default
Using CLASSPATH:       /usr/local/apache-tomcat-9.0.31/bin/bootstrap.jar:/usr/local/apache-tomcat-9.0.31/bin/tomcat-juli.jar
Tomcat started.
[root@*** bin]#

Start up. (2020-2-20 17:34:47)
Port 8080 is still invalid. You need to use port 9090. Change the port number. (2020-2-20 17:36:18)

Change old tomcat? To the way before 9090?

(2020-2-20 17:37:07)
New use 8080
Modify Baidu

So, how to change the port number of tomcat? First, go to the installation directory (or unzip directory) to find the conf folder, where you can find the server.xml file

How to cancel vim (2020-2-20 17:43:09)

Revoke

In general mode, pressing the U key once can undo the last input.

vim lookup.

/string
But how to find the next one

n is looking back
N find the word forward

(2020-2-20 17:45:39)
The only 8080 found was changed to 9090. (2020-2-20 17:46:06)
/Under usr/local:

[root@*** local]# ls
aegis                        apr  games    lib64      mysql    pureftpd  share
apache-tomcat-9.0.31         bin  include  libexec    nginx    redis     src
apache-tomcat-9.0.31.tar.gz  etc  lib      memcached  openssl  sbin      tomcat
[root@*** local]# cd tomcat/
[root@*** tomcat]# ls
bin           conf             lib      logs    README.md      RUNNING.txt  webapps
BUILDING.txt  CONTRIBUTING.md  LICENSE  NOTICE  RELEASE-NOTES  temp         work
[root@*** tomcat]# cd conf/
[root@*** conf]# vim server.xml

The process is as above. (2020-2-20 17:48:20)
No effect. Restart. (2020-2-20 17:52:15)

[root@*** local]# service restart tomcat
restart: unrecognized service
[root@*** local]# service tomcat restart
Stoping Tomcat
Using CATALINA_BASE:   /usr/local/tomcat
Using CATALINA_HOME:   /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME:        /usr/java/default
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
waiting for processes to exit
Starting tomcat
Using CATALINA_BASE:   /usr/local/tomcat
Using CATALINA_HOME:   /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME:        /usr/java/default
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.
Tomcat is running with pid: 6522
[root@*** local]#

History command view history command. (2020-2-20 17:55:32)

[root@*** bin]# sh shutdown.sh
Using CATALINA_BASE:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_HOME:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-9.0.31/temp
Using JRE_HOME:        /usr/java/default
Using CLASSPATH:       /usr/local/apache-tomcat-9.0.31/bin/bootstrap.jar:/usr/local/apache-tomcat-9.0.31/bin/tomcat-juli.jar
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/catalina/startup/Bootstrap : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
[root@*** bin]# pwd
/usr/local/apache-tomcat-9.0.31/bin
[root@*** bin]#

The above bugs are handled. (2020-2-20 17:56:55)
Baidu

This problem is really caused by an attempt by a java class file compiled by a higher version of JDK to run on a lower version of JVM.

Switch Java version.jdk(2020-2-20 17:58:48)
Have one experience. Know multi version environment

Previous notes

Modify database password. (2020-2-20 18:00:42)

Completed. (2020-2-20 18:02:35)

From here. See the tutorial

Course
JDK version switch

You have successfully changed to 1.8

Run again

# sh shutdown.sh
Using CATALINA_BASE:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_HOME:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-9.0.31/temp
Using JRE_HOME:        /usr/java/default
Using CLASSPATH:       /usr/local/apache-tomcat-9.0.31/bin/bootstrap.jar:/usr/local/apache-tomcat-9.0.31/bin/tomcat-juli.jar
Feb 20, 2020 6:06:24 PM org.apache.catalina.startup.Catalina stopServer
SEVERE: Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.
Feb 20, 2020 6:06:24 PM org.apache.catalina.startup.Catalina stopServer
SEVERE: Error stopping Catalina
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.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)
	at org.apache.catalina.startup.Catalina.stopServer(Catalina.java:513)
	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.stopServer(Bootstrap.java:389)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:479)

SEVERE: Could not contact [localhost:8005] (base port [8005] and offset [0]). Tomcat may not be running.

It seems that. tomcat is not started. Then start. (2020-2-20 18:09:09)
/usr/local/apache-tomcat-9.0.31/bin starts

# sh startup.sh 
Using CATALINA_BASE:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_HOME:   /usr/local/apache-tomcat-9.0.31
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-9.0.31/temp
Using JRE_HOME:        /usr/java/default
Using CLASSPATH:       /usr/local/apache-tomcat-9.0.31/bin/bootstrap.jar:/usr/local/apache-tomcat-9.0.31/bin/tomcat-juli.jar
Tomcat started.

Success. Start. You can put something in it. (2020-2-20 18:11:36)

Personal operation actual combat record

Published 89 original articles, won praise 19, visited 10000+

Private letter follow

Posted by JacobYaYa on Thu, 20 Feb 2020 03:22:16 -0800

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