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Centos7 tomcat installation and tomcat web hosting

tomcat download URL:

wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-8/v8.5.31/bin/apache-tomcat-8.5.31.tar.gz

Download URL:

wget https://download.oracle.com/otn-pub/java/jdk/8u191-b12/2787e4a523244c269598db4e85c51e0c/jdk-8u191-linux-x64.tar.gz

1. First install an upload software

yum install lrz* -y (custom use)

2. Software packages such as:

3. Install JAVA environment variables

tar xf jdk-8u144-linux-x64.tar.gz extract package

cp -rv jdk1.8.0_144/usr/local/java Install JAVA

vi /etc/profile

Insert the following at the end:

export JAVA_HOME=/usr/local/java

export JRE_HOME=/usr/local/java/jre

export PATH=$PATH:/usr/local/java/bin

export CLASSPATH=./:/ usr/local/java/lib:/usr/local/java/jre/lib

:wq Save Exit

source /etc/profile for configuration to take effect

java -version Check if java environment variables are installed successfully (success is shown in the screenshot below)

Install tomcat

tar xf apache-tomcat-8.5.23-embed.tar.gz extract tomcat package

cp -r apache-tomcat-8.5.23 /usr/local/tomcat8 Install tomcat

cd /usr/local/tomcat8/

bin holds startup and shutdown tomcat scripts

conf contains different configuration files, server.xml (Tomcat's main configuration file) and web.xml

lib holds jar packages needed for Tomcat to run or sites to run, and all sites on this Tomcat share these jar packages.

Work stores the class files generated by jsp compilation

webapp stores application examples, and applications you want to deploy in the future should also be placed in this directory, which can be changed.

logs store log files

LICENSE: Licence.

NOTICE: Description document.

Soft links to startup files, soft links to close files directly:tomcatup startup and tomcatdown close

ln -s /usr/local/tomcat8/bin/startup.sh /usr/bin/tomcatup

ln -s /usr/local/tomcat8/bin/shutdown.sh /usr/bin/tomcatdown

tomcatup startup tomcat startup success effect diagram as follows

netstat -anpt |grep 8080 Check if tomcat starts successfully and works on port 8080

Web Testing

systemctl stop firewall

setenforce 0

Enter: 192.168.80.100:8080(IP address) or www.centos.com:8080(URL) in the browser address bar (successful screenshot below)

The above shows that your tomcat is installed and running on port 8080

tomcat web hosting

vi /usr/local/tomcat8/conf/server.xml

Add multiple hosts Add new content below each as shown below

property specification

name: localhost virtual host name in $CATALINA_HOME/config/Catalina/localhost is always emphasized in this example

debug: is the debug level of the log

appBase: The default app path, i.e. putting the app in a directory and automatically deploying the app if autoDeploy is true. This path is relative to $CATALINA_HOME/ (base directory for web applications).

unpackWARs: Set to true, in Web apps as *.war Yes, unpack this WAR file. If true, tomcat will automatically extract the WAR file; otherwise, run the application directly from the WAR file without extracting it.

autoDeploy: true by default, means that if a new WEB application is put into appBase and Tomcat is running, the application will be automatically loaded

path: The URI to access, e.g. http://localhost/is the root directory of my app, accessing this app will operate with http://localhost/demm, this element must be the prefix of the URL representing this web application to match a Context. The requested URL//localhost: 8080/path/* was not found on this server.

docBase:WEB directory of the application, this directory must comply with the Java WEB application specification, the file storage path of the web application or the WAR file storage path.

debug: log level

reloadable: whether to reload when the program has changed, set to true affects performance, but automatically loads modified files,

If true, Tomcat will support hot deployment, automatically detect changes to the web application's/WEB-INF/lib and/WEB-INF/classes directories, automatically load new JSPs and servlets, and we can change the web application without restarting Tomcat

The requested URL/webapp/was not found on this server.

Create a java page for.jsp with the following content

vi index.jsp

JSP test page

:wq Save Exit

Tip: every time modify or add and delete a series of actions after the operation as far as possible to close (tomcatdown)tomcat and then start tomcat(tomcatup) or easy to go wrong

Testing tomcat virtual hosting

Windows 7 test results are as follows

Linux test

curl http://www.centos.com:8080

If the above effect is achieved, your tomcat virtual host has been successfully configured

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