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

1. Effect Diagram Display

1.1 Dynamic Real‑Time Data Update

1.2 Right‑Click Theme Switching

2. Requirement Specification

2.1 Screen Resolution for Deployment

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

2.2 Deployment Method

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

Viewing options: run directly on the server or open the interface remotely with a browser such as Chrome or 360 Browser.

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; can add MyBatis to support PostgreSQL, MySQL, Oracle, SQL Server, SQLite, or add POI for Excel, or customize HTTP API interfaces.

Data update method: HTTP GET polling; real‑time push via backend monitoring can also be used.

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4. Development Configuration & Code Structure

4.1 Java Development Environment Setup

Then click **GENERATE** and download the package.

4.2 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>

4.3 Code Structure Explanation

a. Static Resources

b. Java Directory

c. Port Configuration

4.4 Startup Command

4.5 Browser Access

Enter the URL in a browser (port is the value of server.port in application.properties) e.g., http://localhost:80xx.

5. Source Code Acquisition

5.1 Scan QR Code to Add WeChat

5.2 Note: Mention "Source Code" to Receive It for Free