Jeepay: Open‑Source Payment System Overview and Architecture

Jeepay is an open‑source payment system designed for internet enterprises, supporting multiple channels including WeChat Pay, Alipay, and UnionPay through official APIs and offering aggregated code payment.

The platform is built with Spring Boot and Ant Design Vue, integrating Spring Security for permission management, providing a practical web development framework.

Project Features

Multi‑channel integration with automatic gateway routing.

WeChat service provider and merchant interfaces supporting V2 and V3.

Alipay service provider and merchant interfaces with RSA/RSA2 signatures.

UnionPay service provider interface with multiple acquiring banks.

HTTP APIs with SDKs for various languages.

Signature mechanism for request/response data to ensure transaction security.

Distributed deployment and high‑concurrency support.

Management console includes an operation platform and merchant system.

MQ‑based order notifications for high availability.

Automatic generation of payment channel parameter configuration UI.

Permission management via spring security.

Front‑back separation architecture for easy secondary development.

Developed by the former XxPay team with extensive payment system experience.

Jeepay System Architecture Diagram

Core Technology Stack

Software

Description

Version

Jdk

Java environment

1.8

Spring Boot

Development framework

2.4.5

Redis

Distributed cache

3.2.8 or higher

MySQL

Database

5.7.x or 8.0+

MQ

Message middleware

ActiveMQ / RabbitMQ / RocketMQ

Ant Design Vue

Vue implementation of Ant Design

2.1.2

MyBatis‑Plus

MyBatis enhancement tool

3.4.2

WxJava

WeChat Java SDK

4.1.0

Hutool

Java utility library

5.6.6

Project Structure

jeepay
├── conf      -- configuration .yml files for deployment
└── docs      -- project documentation
    ├── script   -- startup shell scripts
    └── sql      -- initialization SQL files
├── jeepay-core      -- core dependency package
├── jeepay-manager   -- operation platform backend [9217]
├── jeepay-merchant  -- merchant system backend [9218]
├── jeepay-payment   -- payment gateway [9216]
├── jeepay-service   -- business layer code
└── jeepay-z-codegen -- MyBatis code generator

Development & Deployment Resources

System development guide: https://docs.jeequan.com/docs/jeepay/dev_serv

Channel integration guide: https://docs.jeequan.com/docs/jeepay/dev_channel

Online deployment guide: https://docs.jeequan.com/docs/jeepay/deploy

API documentation: https://docs.jeequan.com/docs/jeepay/payment_api

Functional Modules

Jeepay Operation Platform Features

Jeepay Merchant System Features

System Screenshots

Various UI screenshots of the Jeepay system are provided (images omitted for brevity).

Source Code Repository

Follow the public account and reply with 1217 to obtain the source code link.