How to make a java project for beginners

Beginners need to master the following knowledge points to do simple projects:

1. Front-end

Language: HTML CSS JavaScript

Development tools: webstorm/vscode

Debugger: Chrome

1. Learn the common tags, elements, and their attributes of HTML.

2. Learn the basic syntax of CSS, the use of various styles, understand the box model and document flow of CSS, and be able to use common knowledge points such as positioning, floating and clearing.

3. Learn the basics of js (variables, functions, arrays, strings, etc.) and understand the object-oriented thinking of JavaScript; be able to use some commonly used js libraries (such as jQuery, bootstrap, etc.); be able to write in js Out some commonly used plug-ins (carousel components, tabs, etc.).

4. Can use HTML CSS to write web pages to implement basic web page layout, can use JavaScript CSS to write commonly used animation effects, and can use ajax to realize data interaction with the background interface.

5. Can use Chrome for development debugging and simple performance debugging.

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2. Backstage

Language: spring , SpringMVC/springboot

Development tools: eclipse/idea

Debugging tools: Chrome

1. Understand the origin and development history of Java and Language features, understand jdk and jre, and learn to configure the Java development environment.

2. Learn the basics of Java, including identifiers, constant variables, keywords, identifiers, data types, operators, flow control statements, arrays, methods, etc.

3. Understand the object-oriented thinking of Java, understand the concepts of classes and objects, understand the three major characteristics of object-oriented (encapsulation, inheritance, polymorphism), understand the difference and use of this and super, Understand Java interfaces, internal classes, abstract classes, etc.

4. Will use some commonly used Java classes (Object, String, Arrays, Math, Date, SystemDateFormate, Calendar and some packaging classes, etc.).

5. Learn some advanced features of Java, such as collections, multi-threading, IO, etc., as well as the principles and uses of reflection.

6. Learn at least one Javaweb development framework (spring, springmvc, springboot, etc.)

7. Learn to use eclipse or idea to create web projects and common development Process, and the use of some shortcut keys.

3. Database

Database: Oracle/MySQL, Redis/mongdb

Development tools: Navicat, Redis command line

1. Learn at least one relational database (Oracle, MySQL, etc.) and one non-relational database (Redis, mongdb, etc.)

2. Learn the theories and basic knowledge related to relational databases, and learn the principles and advantages of non-relational data.

3. Learn basic SQL operations such as adding, deleting, modifying, and querying operations on database tables, views, and indexes.

4. Learn some advanced features of SQL such as locks, functions, triggers, etc.

5. Can use SQL client connection tools such as Navicat to operate the database.

6. Have some SQL performance optimization capabilities.

4. Version control

git/svn/Cornerstone

1. Understand version control principles and application scenarios, and understand the role and usage of each library in the data warehouse.

2. Be familiar with the commonly used git operation commands (create local/remote branches, view local/remote branches, switch branches, commit versions, rollback, merge versions, pull and push branches, etc.).

5. Project construction tool

gradle/maven

This is not To say more, you must learn at least one of the necessary tools for project development.

6. Operating environment

Tomcat, nginx

#1. Understand the composition and operating principles of Tomcat, Understand the familiar configurations of server.xml

2. Learn to view and analyze Tomcat’s project running log

3. Learn to deploy Java projects in Tomcat

4. Understand the principles and functions of nginx, and learn to install nginx

5. Learn the project configuration of nginx

7. Server environment

Linux

1. Understand the basic principles of Linux and some commonly used commands

2. Be able to install jdk in Linux , Tomcat, nginx and other necessary software for web programs

3. Learn some server performance tuning commands

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