Teach you how to deploy the program to the server

Posted by izua on Sun, 31 Oct 2021 17:24:23 +0100

Local deployment project tutorial

However, many small partners will not deploy the program to the server and arrange:

For details, see the video tutorial:


1, Import centos7 virtual machine:

Open VMWare, click "open virtual machine", select centos7.ova, and then select the storage path:

Click Import:

Select "don't show this message again" and click the "retry" button:

Click "Edit virtual machine settings", modify processor, memory, hard disk and other information, and start.

Press Ctrl+Alt to switch to windows.

After successful startup, enter the account root password 123456 to log in.

2, Configure IP address:

First set the network connection mode in VMWare as bridge mode:

There are two main methods for CentOS 7 to obtain IP addresses: 1. Dynamically obtain IP addresses; 2: Set the static IP address.

1. Get ip dynamically (if your router has DHCP enabled)

Modify the network card configuration file VI / etc / sysconfig / network scripts / ifcfg-enp0s3 (the last one is the network card name)

To dynamically obtain the IP address, you need to modify two places



After modification, restart the network service to systemctl restart network

[root@mini ~]# systemctl restart network[root@mini ~]#

In this way, the IP address can be set dynamically. At this time, check the ip addr to see that the IP address has been obtained and you can surf the Internet (ping Baidu)

2. Set fixed ip


IPADDR = "" # the fixed IP you want to set can theoretically be between and Please verify by yourself;

NETMASK = "" # subnet mask, which does not need to be modified;

GATEWAY = "" # GATEWAY. Here is the IP address of VMware GATEWAY. The IP you want to record earlier.

DNS1 = "" # this is the domestic DNS address, which is fixed;

3, Various pits:

1. systemctl restart network error

Job for network.service failed. See 'systemctl status network.service' and 'journalctl -xn' for details.

2. ping failed Baidu

4, Solution:

1. Exclude ip conflicts

ping the ip address of the host to see if it already exists.

2. Delete redundant network card profile

Delete the redundant network card configuration file beginning with ifcfg-e

rm -f /etc/sysconfig/network-scripts/ifcfg-eXXX

3. HWADDR error, found the correct HWADDR

Enter ip addr to find HWADDR

Enter the CD / etc / sysconfig / network scripts directory, edit the corresponding VIM ifcfg ensxx, set HWADDR correctly, and restart service network restart

Or delete HWADDR.


4. Comment out or delete the DEVICE line in IFC ethxx

5. Change the NAME in ifcfg XXX to be consistent with the file NAME

5. Delete UUID of network card

6. Stop NetworkManager.service

Stop network management service

[root@localhost Desktop]# systemctl stop NetworkManager.service[root@localhost Desktop]# systemctl disable NetworkManager.serviceRemoved symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service.Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service.Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service.

Restart the network service

[root@localhost network-scripts]# service network restart

Restarting network (via systemctl): [ OK ]

7. Delete device rule profile

With or without this document, just delete it

rm -f /etc/udev/rules.d/70-persistent-net.rules

8. Open the virtual machine service for VMWare

9. Check whether the network adapter in the lower right corner of VMWare is connected. If not, connect it

10. Restart Dafa

If the above problems are not solved, there is one last move - restart to see if there are miracles!

5, Not anyway:

1. Using NAT mode

2. First, get the ip address dynamically

3. View current DNS

cat /etc/resolv.conf

4. Change to static ip

5. After updating the required software, you can change back to bridge mode again

6, Install JDK1.8 under CentOS7:

1. Check that the jdk is installed

Type the command java -version to view.

2. Download JDK

Download address https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html

Pull down

3. Upload to centos

Upload the local d:/tmp/jdk-8u281-linux-x64.tar.gz to / usr and rename it java1.8:

Switch local directory to d:/tmp1

sftp>lcd d:/tmp1

Switch centos directory to / usr

sftp>cd /usr

View local directory

sftp> lpwdd:/tmp

View centos directory

sftp> pwd/usr


sftp> put jdk-8u281-linux-x64.tar.gz


sftp> mv jdk-8u281-linux-x64.tar.gz java1.8

4. Unzip and install JDK

Type the command cd /usr to the copied file, type the command tar -zxvf java1.8 to extract it, and extract a folder jdk1.8.0_281, enter the folder

5. Configure JDK environment variables

Type the command vi /etc/profile to modify the configuration file. Remember to modify it under root permission

Enter i to enter the editing state, then move the cursor to the last line and paste the following content, JAVA_HOME=/usr/jdk1.8.0_281 set it according to your own decompression directory

#java environmentexport JAVA_HOME=/usr/jdk1.8.0_281export CLASSPATH=.:J A V A H O M E / j r e / l i b / r t . j a r : {JAVA_HOME}/jre/lib/rt.jar:JAVA

HOME/jre/lib/rt.jar:{JAVA_HOME}/lib/dt.jar:J A V A H O M E / l i b / t o o l s . j a r e x p o r t P A T H = {JAVA_HOME}/lib/tools.jar export PATH=JAVA


The effects are as follows:

Click esc to enter the command mode and enter: wq save the modification information

Then type the command source /etc/profile to make the configuration file effective.

6. Test for successful installation

Type the command java -version to view.

7, To install mysql5.7 under CentOS 7:

1. Install wget

yum -y install wget

2. Download rpm package

sudo wget http://repo.mysql.com/yum/mysql-5.7-community/el/7/x86_64/mysql57-community-release-el7-10.noarch.rpmsudo rpm -ivh mysql57-community-release-el7-10.noarch.rpm

3. Install MySQL community server using yum or up2date

sudo yum -y install mysql-community-server

This step is time-consuming

4. Start mysql

sudo systemctl start mysqld

5. Set startup

sudo systemctl enable mysqld

6. Find initial password

Find the initial password in the / var/log/mysqld.log file

cat /var/log/mysqld.log

The initial password here is: waf_eHWkr42K

7. Log in to mysql

sudo mysql -uroot -p


Enter initial password: waf_eHWkr42K

8. Change password

ALTER USER 'root'@'localhost' IDENTIFIED BY '1qaz!QAZ';

The default rule of password strength is (at least 8 digits in length, including upper and lower case letters, numbers and special characters)

9. Set allow remote login

1. Execute authorization order


2. Exit the mysql console


3. Open 3306 port

Turn on the firewall

sudo systemctl start firewalld.service

Permanently open 3306 ports

sudo firewall-cmd --add-port=3306/tcp --permanent


sudo firewall-cmd --reload

Turn off firewall

sudo systemctl stop firewalld.service

10. Set the default encoding to utf8

View the mysql code before modification

show variables like '%chara%';


Modify the / etc/my.cnf file and add the following two lines

sudo vi /etc/my.cnf


init_connect='SET NAMES utf8'

After modification, restart mysql

sudo systemctl restart mysqld

View the modified mysql code

11. Testing

Using navicat to connect to mysql

Data file location:/var/lib/mysql

Profile location:/etc/my.cnf

Log file location:/var/log/mysqld.log

8, centos7 enables the springboot project to start automatically:

1. Import database

Import mysql database.

2. Upload the packaged jar package file

Upload the jar package to / usr/local/project /.

Run java -jar springboot.jar

3. New service file

Edit a file with service as the suffix under the / etc/systemd/system / Directory:

cd /etc/systemd/systemvi java.service

The contents of the document are as follows:

[Unit]Description=javaAfter=syslog.target[Service]Type=simpleExecStart=/usr/jdk1.8.0_281/bin/java -jar /usr/local/project/springboot.jar[Install]WantedBy=multi-user.target

Where: / usr/jdk1.8.0_281 is the JDK installation path, and / usr/local/project/springboot.jar is the packaged jar package file.

4. Add execution permission

chmod +x /etc/systemd/system/java.service

5. Reload service

systemctl daemon-reload

6. Start the service and join the startup self startup

systemctl start java

systemctl enable java

ps -ef | grep "java"| grep -v grep

systemctl status java.service -l

9, Install Tomcat 8.5 under CentOS 7:

1. Download Tomcat 8.5


2. Upload the packaged jar package file and unzip it

Upload to / usr /.

tar -zxvf apache-tomcat-8.5.63.tar.gz

3. Add startup parameters to tomcat

A PID file tomcat.pid needs to be added in the root directory of Tomcat.

touch tomcat.pid

Under the tomcat/bin directory, add setenv.sh configuration, which will be called when catalina.sh starts, and configure Java memory parameters.

export CATALINA_HOME=/usr/apache-tomcat-8.5.63export CATALINA_BASE=/usr/apache-tomcat-8.5.63#add tomcat pidCATALINA_PID="$CATALINA_BASE/tomcat.pid"#add java optsJAVA_OPTS="-server -XX:PermSize=256M -XX:MaxPermSize=1024m -Xms512M -Xmx1024M -XX:MaxNewSize=256m"


4. New service file

Edit a file with service as the suffix under the / etc/systemd/system / Directory:

vi /etc/systemd/system/tomcat.service


The contents of the document are as follows:

[Unit]Description=TomcatAfter=syslog.target network.target remote-fs.target nss-lookup.target [Service]Type=forkingEnvironment="JAVA_HOME=/usr/jdk1.8.0_281"PIDFile=/usr/apache-tomcat-8.5.63/tomcat.pidExecStart=/usr/apache-tomcat-8.5.63/bin/startup.shExecReload=/bin/kill -s HUP $MAINPIDExecStop=/bin/kill -s QUIT $MAINPIDPrivateTmp=true [Install]WantedBy=multi-user.target

5. Add execution permission

chmod +x /etc/systemd/system/tomcat.service

6. Reload service

systemctl daemon-reload

7. Start the service and join the startup self startup

Direct start

systemctl start tomcat

chkconfig mysqld on

systemctl enable tomcat

View startup status

systemctl status tomcat.service

Out of Service

systemctl stop tomcat

Query tomcat process

ps -ef | grep "tomcat"| grep -v grep

If there are multiple Tomcats, copy them to different directories and use different ports. The tomcat.service file name can be different.

For example: tomcat1.service tomcat2.service tomcat3.service

8. Restart the server

Restart and try to access it.

Topics: Java Linux