Spring Beans Visualized: View Your Beans at Runtime

Simple graph view on SpringFramework beans reported by Spring Boot Actuator beans endpoint.

Shows in web-browser active beans and dependencies between them. Provides ability to filter and highlight beans. Allows to dig deeper into your application.

Bean dependency graph drown for actual SpringFramework application

Run application

• You should have running Spring Boot application with enabled Spring Boot Actuator beans endpoint.

• You may need to configure Spring Beans Visualized application by modifying constants in app.json file. Most likely you have to setup your user/password and application host/port, probably Spring Boot Actuator endpoints base path.

• Get dependencies & start Spring Beans Visualized application

npm install
node app.js

• Browse your application at http://localhost:3000.

Build and run application using Docker

To build and run the application using Docker run next shell commands at project folder:

docker build -t spring-beans-visualized:0.0.5 .
docker run spring-beans-visualized:0.0.5

Docker container has next configuration variables:

• CLIENT_APP_USER - optional Basic HTTP authentication username
• CLIENT_APP_PASSWORD - optional Basic HTTP authentication password
• CLIENT_APP_SCHEMA - actuator services schema type (possible options: 'http', 'https')
• CLIENT_APP_HOST - actuator services hostname (example: 'localhost', '192.168.1.1')
• CLIENT_APP_PORT - actuator services port (usually '8080')
• CLIENT_APP_ACTUATOR_BASE_PATH - actuator contentPath (usually '', could be: '/appName/actuator')
• SERVICE_PORT - on which port service starts (internal for Docker container, usually '3000')

Inspiration & implementation

Heavily inspired by Mike Bostock example. Also this project is a continuation of Monte Master's Thesis done in 2013 by ndrew and aigor.

Based on D3 library, Node.js, and Express server.

License: ISC

Plans for future improvements

• Add arrows to show ussage direction.
• Shorten bean names with package.
• More information about beans (singleton/prototype).
• Clustering by package, component type, etc.
• Multiple Spring contexts support.
• Do not reread bean definitions every time - cache it somehow.
• Better error handling.