Build a Real‑Time Data Visualization Dashboard with Echarts and Java

Data‑visualization big screens have sparked a wave of interest, prompting many enterprises to build impressive, "cool and powerful" dashboard cockpits.

1. Effect Screens

1) Dynamic real‑time data visualization

2) Right‑click to switch theme

2. Requirement Specification

1) Determine screen LED resolution for deployment

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

2) Deployment method

Based on a portable executable program that runs on Windows, Linux, macOS and other operating systems; simply copy the program to a server without additional environment dependencies.

Viewing method: run the program directly on the server or open it remotely via a browser such as Chrome or 360.

3. Overall Architecture Design

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

Backend implemented with Java Web, developed in IntelliJ IDEA.

Data exchange format: JSON.

Data source: currently JSON files; adding MyBatis can support PostgreSQL, MySQL, Oracle, Microsoft SQL Server, SQLite; adding POI can support Excel; custom HTTP API interfaces are also possible.

Data update: HTTP GET polling; real‑time push can be used when needed.

4. Development Configuration & Code Structure

1) Java development environment

After configuration, generate and download the package.

2) JSON library configuration

Use Alibaba's FastJSON library; add the following dependency to pom.xml:

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

3) Code structure

a) Static resources

b) Java package layout

c) Port configuration

4) Startup command

5) Viewing in a browser

Enter the URL with the port defined in application.properties, e.g., http://localhost:80xx, to view the dashboard.

5. Source Code Acquisition

The project source code can be obtained by scanning the QR code below.