Building a Real-Time Data Visualization Dashboard with Echarts and Java Backend

1. Introduction

Data‑visualization large screens have become a trend, and many enterprises want to build their own impressive dashboard cockpit.

2. Effect Demonstrations

2.1 Dynamic real‑time data update

Animated screenshots show how data updates in real time.

2.2 Right‑click theme switching

Images illustrate the ability to switch themes via a right‑click menu.

3. Requirement Specification

3.1 Screen resolution

The case uses a 16:9 aspect ratio with full‑screen (F11) display.

3.2 Deployment method

An installation‑free executable supports Windows, Linux, macOS, etc.; simply copy the program to a server without additional dependencies. The interface can be viewed directly on the server or accessed remotely via browsers such as Chrome or 360.

4. Overall Architecture Design

Frontend built with the open‑source Echarts library, edited in WebStorm.

Backend implemented in Java Web, edited in IntelliJ IDEA.

Data exchange format: JSON.

Data source: initially JSON files; can be extended with MyBatis for PostgreSQL, MySQL, Oracle, SQL Server, SQLite, or with POI for Excel, and custom HTTP API interfaces.

Data update: HTTP GET polling; real‑time push can be added if needed.

5. Development Configuration & Code Structure

5.1 Java development environment

Images show the required JDK and IDE setup.

5.2 JSON library configuration

Add the Alibaba FastJSON dependency to pom.xml :

<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>fastjson</artifactId>
   <version>1.2.51</version>
</dependency>

5.3 Code structure explanation

a. Static resources – directory layout for static files.

b. Java packages – organization of backend source code.

c. Port configuration – where to set the server port.

5.4 Startup command

Screenshot shows the command used to launch the application.

5.5 Viewing in a browser

Open http://localhost:<port> in a browser to see the dashboard.

6. Source Code Acquisition

The source code can be obtained for free by scanning the provided QR code and adding the author on WeChat with the note “source code”.