Work on the project step by step, complete it, and write it directly on your resume!

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Recently working on a project: Charging pile project. This article introduces to you the background of this project, some prototype diagrams, core functions, core modules, technology stack, etc.

Project background introduction

With the continuous development of my country’s automobile industry, electric vehicles have begun to gradually Leading the entire automobile industry, more and more people are beginning to use electric vehicles while pursuing environmental protection and economic benefits. The Chaoxing charging pile backend management system realizes multi-level, multi-site centralized management, visual management, and site sales data statistics and analysis. An integrated intelligent charging pile station operation monitoring and management system, and customized research and development plans according to needs.

Charging pile refers to a charging device that provides energy supplement for electric vehicles. Its function is similar to the gas dispenser in a gas station. It can be fixed on the ground or wall and installed In public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations, various types of electric vehicles can be charged according to different voltage levels.

The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. Charging piles generally provide two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-computer interaction interface provided by the charging pile to perform corresponding charging operations and cost data printing. The charging pile display screen can Displays charging capacity, cost, charging time and other data.

The previous conversation came from the Internet, focusing on the importance of the charging pile project.

Let’s start the system introduction

System roles: Users (ordinary users, VIP users), investors, administrators

Core process :

1. Merchants settle in, log in, pay deposit, open the site, and install charging piles at the site.

2. User group registration, login, authentication, and deposit payment. Users add vehicle information, users use WeChat to recharge, users charge, get points, etc.

3. The user invites other users to register, and the other users complete the authentication, and the user gets the invitation income.

4. Points mall: including earning points, redeeming points for gift certificates, and points redemption records

5. Home page (nearby power stations, my wallet, my car, contact customer service, and activate membership)

The user terminal mainly includes:

1. Registration, login

2. Recharge center (WeChat payment, payment record)

3. My income (Invitation income, income record)

4. Site information (site list, my favorite sites, charging pile list)

5. Coupons (all coupons, coupons can be used, Expired coupons, coupon usage records)

6. Charging (charging start, charging, charging record)

The charging pile background management system mainly includes the following modules:

1. Site management (information management of charging piles and charging piles);

2. Franchise cooperation (unified management of investors and contracts);

3. Promotion and operation ( Management of users, gift certificates, activities, invitations, groups and other modules);

4. Transaction management (precipitation management of charging records, transaction flows, recharge records, etc.);

5. Hidden dangers and faults (hidden dangers and fault handling of equipment);

6. Statistical analysis (operation status, energy consumption analysis, financial statements, fault analysis module management);

7. Real-time monitoring (Video surveillance, surveillance signage module) and other unified management of multiple modules.

Main function introduction

##Customer terminal

Customer side

Part of the prototype diagram:

Login/Registration

Points Mall

My Gift Certificate

My income

Backend management terminal

Management end

Partial prototype diagram

Homepage

Site

Gift certificate management

New gift certificate

Transaction flow management

Project planning

The overall project is divided into several modules:

--charge-station
  |
  |-charge-web  用户端
  |
  |-charge-admin 管理端
  |
  |-charge-common 公共模块
  |
  |-charge-mq 消息队列 消费者
  |
  |-charge-job 任务调度
  |
  |-charge-service 
    |
    |-charge-user-service 用户服务
    |
    |-charge-marketing-service 市场营销
    |
    |-charge-station-service 站点服务
    |
    |-charge-pay-service 支付服务
    |
    |-charge-point-service 积分商城

Project Technology

##TechnologyDescription Official websiteSpringBootContainer MVC Frameworkhttps://spring.io/projects /spring-bootSpring Cloud (Nacos, feign, hystrix)Microservice related components##Swagger-UIDocument generation toolhttps://github.com/swagger-api/swagger-uiHibernator-ValidatorValidation framework http://hibernate.org/validator

SpringSecurity	Authentication and Authorization Framework	https://spring.io/projects/spring-security
MyBatis	ORM Framework	http://www.mybatis.org/mybatis-3/zh/index.html
MyBatisGenerator	Data layer code generation	http://www.mybatis.org/generator/index.html
RabbitMQ	Message queue, delayed message queue	https://www.rabbitmq.com/
Redis	Distributed cache, distributed lock	https://redis.io/
Nginx	Static Resource Server	https://www.nginx.com /
Atomikos	Distributed Transaction	https://www.atomikos.com/Main/WebHome
Jenkins	Automated deployment tool	https://github.com/jenkinsci/jenkins
Druid	Database connection pool	https://github.com/alibaba/druid
MinIO	Object Storage	https://github.com/minio/minio
JWT	JWT login support	https ://github.com/jwtk/jjwt
Lombok	Simplified object encapsulation tool	https://github.com/rzwitserloot/lombok
Hutool	Java Tool Class Library	https://github.com/looly/hutool
PageHelper	MyBatis physical paging plug-in	http://git.oschina.net/free/Mybatis_PageHelper
xxl-job	Distributed task scheduling	https://www.xuxueli.com/xxl-job/

The above is the current structure of the project. It may continue to be expanded in the future, continue to add modules, or continue to split the project.

Database table structure

Database relationship diagram

Backend management-related tables are not shown here. The following focuses on core business-related tables. Currently, the following are available:

Core business tables

The database must be split. If there is only one database, it doesn't seem to make much sense.

Rough plan:

1. Management platform database

2. User center database

3. Payment center database

4. The Marketing Center Database

may continue to split the database vertically based on this.

Technical points of the project

This project uses:

Spring Cloud(Nacos , Feign, Hystrix, Sentinel, Gateway)

Spring Boot

MyBatis

MySQL

Atomikos

Redis

RabbitMQ

XXL-job

OSS

The relevant technical points used in this project are as follows:

1. AOP annotation log output.

2. Redis serves as distributed cache, distributed lock, ranking list and other functions.

3. Atomikos implements distributed transactions.

4. RabbitMQ implements business asynchronousization and delayed message queue.

5. XXL-job implements distributed task scheduling.

6. Use Nacos as the service registration center and distributed configuration center

7. Unified API interface return code

......

Once this project is completed, it can be written on your resume.

I hope you don’t write any e-commerce projects, hospital projects, online education projects, consulting projects, etc. on your resume. Seeing these projects can easily be judged as fake projects by the interviewer, which may also lead to interview opportunities. Not even a few can be found.

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