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

1. Effect Diagram Display

1. Dynamic real‑time data effect diagram

2. Right‑click to switch theme

2. Determine Requirement Plan

1. Define 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 OSes; simply copy the program to the server without additional dependencies.

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

3. Overall Architecture Design

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

Back end implemented with Java Web, edited in IntelliJ IDEA.

Data transmission format: JSON.

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

Data update method: HTTP GET polling; alternatively, backend push can be used for real‑time updates.

4. Development Configuration & Code Structure

1. Java development environment configuration

Then click 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 explanation

a. Static paths

b. Java directory

c. Port configuration

4. Startup command

5. Browser view

Enter the URL in a browser (port defined in application.properties) such as http://localhost:80xx to view the dashboard.

5. Source Code Acquisition

Scan the QR code below and reply with the keyword 大屏 to receive the complete system source code.