ECS deployment web project

One : build Java Deployment environment

I said before yum This is the order , yes " Package manager ", It can be understood that he is like " The app store ", We need to install JDK,Tomcat, also Mysql, Of course , We need to download yum install, You must use administrator privileges (root)

yum list | grep [ Package keywords ] function ： View the package list
yum install [ Package name ] function ： Install package ( Administrator privileges required )
yum remove [ Package name ] function ： Uninstall package ( Administrator privileges required )

1: install JDK

First , Let's search , have a look yum on jdk Is there any , And the name , We can go through yum list Orders can be listed The names of all software packages on the corresponding server ( Of course, don't just knock , This knock will list everything , There will be a lot of , We match grep To use :yum list | grep gdk), Search only jdk Of :

These versions are different , So there are many , We must recognize this sign :

devel( Represents the development kit , That is to say jdk), Everything is the most complete ,x86_64 This software package is applicable to cpu yes 64 Bit x86 cpu( We now use the server cpu Mainly x86 64 position ),

The above is a .i686 Yes. 32 Bit , The difference is very big

Let's take the one above 64 Copy of bits (ctrl+insert)
yum install java-1.8.0-openjdk-devel.x86_64
I installed , Remember to press... For the first time y
Verify that the installation was successful , Input javac see

Be careful Here we install jdk yes OpenJDK , And we learned before Java With JDK Not yet a , We were in windows Installed on JDK yes Oracle Official JDK,OpenJDK yes Open source organization developed another JDK, Although not the same , But it's not a big problem , It's all the same JVM Hostspot.( The overall difference is very small , So there is no need to install Oracle JDK)

2: install Tomcat

We found that yum Although there is tomcat, But the version is older , yes 7.0 Series of , What I usually use is 8.5 Series of , Because we also know tomcat,JDK,Servlet,mysql This version must match to be stable , So we need to get into tomcat Download on the official website :https://tomcat.apache.org/

Some dragging may not succeed , Because dragging and uploading depends on rz command , It needs to be done first yum install lrzsz To install dependent commands , To upload ,rz hold windows File on Pass to Linux The server ,sz hold Linux Send the file on to Windows

And then we need to deal with This file is decompressed :unzip [ Compressed files ]

Get into Folder view :

The next step is to start tomcat 了 :

To start tomcat, Need to use startup Script , among .bat It's for windows The use of ,.sh It's for Linux The use of …

For the first time, we need to give all .sh File settings Executable rights
First cd To bin Under the table of contents , And then execute chmod+x *.sh( To all in the directory .sh Suffixed files are added with executable permissions ), After adding , There is no need to add it later

In the input :sh startup.sh The startup script

summary

1: First download it on the official website .zip package
2: hold zip to linux On , Just drag it in , No, I can't yum install lrzsz Command to download first
3: Use unzip Command to decompress , You may also need to download it first
4: Switch to bin Directory to all .sh Plus executable rights :chmod+x *.sh
5: sh startup.sh start-up romcat
( The first four steps need to be done for the first time , There is no need for , And then execute the command in the relevant directory )

How to validate tomcat Startup successful ?

1: see tomcat process :
ps aux | grep tomcat,ps command amount to windows Task manager on , All processes of the current host will be printed ,grep tomcat according to tomcat Keyword to match

2: see tomcat The port of , The default is 8080
Check whether the port number is bound :netstat -anp | grep 8080
This is the successful startup

If the port number is occupied , You can modify it yourself :

find conf Of this catalog server.xml
vim server.xml Enter editor
Find these two ports , Just change it

3: You can also verify whether you can access tomcat Welcome page of
If you can visit , It starts successfully Extranet IP+8080( Set your own port number ) That's it

Maybe some people bought servers , Not shown , Because the cloud server manufacturer , To protect our servers from hackers , There are strict restrictions on which ports can be accessed externally , Most ports are by default , Not accessible through the Internet , This requires us to go to the official website to open A firewall / Security group , Configure in the background page , Which one is allowed / Which ports can be accessed externally , Make sure The server can only be accessed if it is accessible

Just add this to it :

3: install MySQL

Our own computers and Linux The server is two machines , therefore , Want the program to run on the server , We're going to install... On the server MySQL, Here I refer to the following installation tutorial :https://zhuanlan.zhihu.com/p/49046496

Here we have installed MySQL The twin brothers ,MariaDB, These two API Are compatible , The effect is the same . At the same time, they are installed with root user operational .
Specific steps :

(1): In turn, installation

install mariadb service ：yum install -y mariadb-server
install mariadb Command line client ：yum install -y mariadb
install mariadb C library：yum install -y mariadb-libs
install mariadb Development kit ：yum install -y mariadb-devel

(2): Change configuration

adopt vim Press down i Enter insert mode to change the following configuration , Operate carefully , Finally press esc Press down :wq Save and exit

1. change : /etc/my.cnf.d/client.cnf file
   [client] Add a line to configure default-character-set=utf8

vim /etc/my.cnf.d/client.cnf

effect :

2. change /etc/my.cnf.d/mysql-clients.cnf file
   [mysql] Add a line to configure default-character-set=utf8

vim /etc/my.cnf.d/mysql-clients.cnf

effect ：

3. change /etc/my.cnf.d/server.cnf To configure
   [mysqld] Add configuration below
   collation-server = utf8_general_ci
init-connect='SET NAMES utf8'
character-set-server = utf8
sql-mode = TRADITIONAL

vim /etc/my.cnf.d/server.cnf

effect :

(3): start-up

Start the service : systemctl start mariadb
Set the service to start automatically ：systemctl enable mariadb
View service status ：systemctl status mariadb
be aware Active Status as active (running)

(4): Test connection

Try connecting... Using the command line client ：mysql -uroot

see mariadb Version number ：select version();

View the character set configuration ：show variables like '%char%';

Okay , It's done here
Be careful : I don't have a password to log in directly , Because my database has nothing valuable , I am not afraid of others' trouble , Just don't bother to set up

Two : Deploy web project

1: Prepare the dependent data for the server

The previous database has nothing to do with the database here , We need to copy the previous data

Successful import !!

2: Fine tune our Java Code

We were writing java Code time , There is a password to access the database , The passwords of the databases on the ECS are different , There is no password set on our ECs , yes An empty string

3: REPACK

Here we will use our original packaging process , Need to be based on maven Of package Operation to generate war package ! The first is to start with pom.xml Inside set as war package , The name is set to blogSystem

And then on the left target There are generated war package

4: Upload to server

One word : drag ! Put the just war The package is dragged to our ECS webapps Under the table of contents ,tomcat If it's running , And it will automatically war Decompress

5: verification

Log in to check whether it is successful : The blog system ( user name :lisi password :123)

Come here ,web The project is deployed !!!( Because the background picture is a little big , Maybe the load is a little slow , It's normal )
Don't be afraid when we encounter problems. First, we can check the cause of the problem by grabbing the bag , And get used to watching logs Log file search problem , Find the latest file date when an error occurs , It's better to see all of them …