Tomcat use
Server related concepts
What is a server?
Server: divided into software server and hardware server.
Hardware server: a computer with a static IP running on the Internet (usually with a higher configuration).
Software server: a computer program (software) running on the Internet. The server software is installed on the Only the hardware server can provide external services.
There are many types of server software: database server (MySQL, Oracle, SQL Server, etc.), node.js, Web server (tomcat, jetty, jboss, etc.), mail server, FTP server.
What is tomcat?
It is a web server similar to nodejs.
The main function of nodejs server is, Vue files are compiled into JavaScript5 (ES5)
tomcat to run the code, and mysql is operated through jdbc
In the work, you may encounter old projects, you need to:
deploy the program in the tomcat\webapps folder, bin\startup.bat, conf\server.xml, the
new project uses:
springboot, built-in tomcat
Open cmd to view the public network ip address, which is different across the country
What web server?
Web server: A computer program running on the Internet, specifically used to receive client requests, process them according to the request, and finally give a response! For
example: open the browser, enter "http://www.baidu.com" and press Enter, In fact, you are visiting Baidu's server. At this time, a request will be sent to the Baidu server to request Baidu's homepage. The Baidu server will receive and process the request, and respond according to the request (response the Baidu homepage to the client browser)
Tomcat is a web server, which is characterized by: small and flexible, simple and easy to use, and the learning cost is very low!
Tomcat server download, install, start, configure
Tomcat is similar to nodejs, receives get requests, returns web pages, pictures, json, and executes jdbc in tomcat
Link: https://pan.baidu.com/s/1Zf9xDlNd1O-ABSlQAmP0jw
Extraction code: jol5
Install Tomcat
Installation: It can be used after decompression (it is best not to include Chinese and spaces
in the installation path). Before starting, you need to configure (check) a JAVA_HOME environment variable, which needs to point to the installation root directory of the JDK.
Variable name: JAVA_HOME
variable value: C:\Program Files\Java\jdk1.8.0_241
Since the tomcat server is developed by the Java language, running tomcat requires JDK support. The
JAVA_HOME variable tells the tomcat server which location to use the JDK.
Start Tomcat
Start tomcat: start the tomcat server through the [tomcat installation directory]/bin/startup.bat file;
close tomcat: close the tomcat server through the [tomcat installation directory]/bin/shutdown.bat file;
or directly click the cross in the upper right corner
After starting tomcat, you can open the browser and visit:
http://localhost:8080 http://127.0.0.1:8080
If you can access the homepage of the tomcat server, it means that the tomcat is installed and started successfully!
Modify the default port of the tomcat server
If you do not modify the port, every time you access the tomcat server, you need to add: 8080 after the host name/ip address: 8080
If you want to add a port after the host name or ip address you are accessing, you can modify the port to 80 (this port Special, you can omit it!)
The way to modify the port is:
Find [tomcat installation directory]/conf/server.xml and open this file with a text editing tool.
Find line 69 of the file, change the port attribute value on the Connector tag to 80, save the file, and restart the server to take effect! After
restarting the server , You can access the tomcat server through the following path:
http://localhost http://127.0.0.1
Deploy the website on tomcat
Link: https://pan.baidu.com/s/1QRQQVlTBYu1sUqSPdn2Uaw
Extraction code: cpbh
After the download is complete, copy and paste person to deploy to tomcat/webapps
Visit the image and index.html in the browser, then tomcat
http://localhost:80/person/index.html
http://localhost:80/person/image/money.jpg
Deploy person to webapps/root
Visit the picture and index.html in the browser
http://localhost:80/