preface

I use:

1. Development tool: idea
2. jdk: 1.8
3. mysql: 5.7.35
4. tomcat: 8.0.35
5. ssh tool: FinalShell

1, Environment configuration and construction

1. Installation and configuration of JDK

1. download
   1) I use the Linux version of tar GZ compressed package, you need to download others by yourself
   

2. install
   1) After downloading, put the compressed package in the specified directory of the server. I put it in the java file of usr here. After that, basically all installations are under usr
   2) Decompress

   	tar -zxvf jdk-8u301-linux-x64.tar.gz
   

3. to configure
   1) Similar to windows, configure the environment and find the etc/profile file
   2) vim command to open the file, add the following content, and modify it according to your jdk location

   export JAVA_HOME=/usr/java/jdk1.8.0_301
   export CLASSPATH=.:${JAVA_HOME}/jre/lib/rt.jar:${JAVA_HOME}/lib/dt.jar:${JAVA_HOME}/lib/tools.jar
   export PATH=$PATH:${JAVA_HOME}/bin
   

   3) Then exit editing and re execute the profile file, source /etc/profile
   4) Testing

    java -version
   

2. Mysql installation and configuration

1. download
   https://dev.mysql.com/downloads/mysql/5.7.html#downloads
   

2. install
   decompression

   tar -zxvf mysql-5.6.44-linux-glibc2.12-x86_64.tar.gz
   

3. to configure
   1) Modify file name

   mv mysql-5.6.44-linux-glibc2.12-x86_64  mysql
   

   2) Environment configuration, find the etc/profile, vim command, and add the following

   export MYSQL_HOME=/usr/mysqld/mysql
   export PATH=$PATH:$MYSQL_HOME/bin:$MYSQL_HOME/lib
   

   3) Start mysql

   service mysqld start
   

   4) Set on self start

   chkconfig --list | grep mysqld
   
   chkconfig  mysqld on
   

   5) Create the root user and set the password

   mysqladmin -u root password 'root';
   

   6) Configure permissions and modify passwords
   a. Login to mysql

   mysql -u root -p
   

   b. Configure the permissions for Database Internet access

   GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;
   

   c. Change password

   UPDATE mysql.user SET password=PASSWORD('New password') WHERE User='root';
   

   After modification, execute this command

   FLUSH PRIVILEGES;()
   

   7) Stop mysql

   service mysqld stop
   

   8) Restart mysql

   service mysqld restart
   

3. Tomcat installation and configuration

1. download
   https://tomcat.apache.org/download-80.cgi

2. install
   1) Decompress

   tar -zxvf apache-tomcat-8.5.37.tar.gz
   

   2) Modify file name

   mv apache-tomcat-8.5.37 tomcat
   

3. to configure
   1) Environment configuration, find the etc/profile, vim command, and add the following

   export CATALINA_HOME=/usr/tomcat
   export PATH=$PATH:$CATALINA_HOME/bin:$CATALINA_HOME/lib
   

   2) Modify port number
   

   3) Start
   Enter the bin directory of the tomcat file

   ./startup.sh
   

   4) Testing
   Access the ip + port number to see if the tomcat screen will appear

2, Deployment project

1. to configure
   1) Port number modification (use the port number defined by yourself)

   

   2) Modify the database in the configuration file, and change the user name and password of Mysql to that of the server mysql

2. Packing note: I use idea development here

   I called the war package. If you have different needs, you can go to the POM of the main project XML self modification

3. Deployment project
   1) Upload the downloaded war package to the webapps directory under tomcat on the server
   
   2) Stop tomcat from executing in the bin directory

   mv apache-tomcat-8.5.37 tomcat
   

   3) On tomcat's server Add the startup page specified by the project to the XML

   	<Context path="" docBase="/usr/tomcat/webapps/war Package name" debug="0" reloadable="true" crossContext="true"/>
   

   4) Start Tomcat/ startup. sh

   ./startup.sh
   

4. Test project browser request ip + port