[# Smart Healthcare System (Angular + Spring Boot + Python AI)

Full-stack healthcare management platform with:

• Angular 12 Frontend (patient / doctor / admin interfaces)
• Spring Boot (REST API, JWT auth, MySQL persistence)
• Python Flask AI Service (disease prediction)
• MySQL 8 Database

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1. Architecture Overview

Component	Tech	Default Port	Purpose
Frontend	Angular 12	4200	UI for users, doctors, admin
Backend API	Spring Boot (Java 17)	8081	Auth, users, doctors, appointments, prescriptions
AI Service	Python Flask	10000	Symptom/disease prediction endpoint(s)
Database	MySQL 8	3306	Persistent storage

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2. Prerequisites

Install / verify:

• Java 17 (java -version)
• Maven 3.6+ (mvn -v)
• Node.js 16.x or 18.x LTS recommended (Angular 12 is not tested on Node 22)
  (If you must use Node 22: set NODE_OPTIONS=--openssl-legacy-provider when running.)
• Python 3.11+ (python --version)
• MySQL 8 (mysql --version)

Python packages (will install later): flask pandas scikit-learn numpy

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3. Repository Layout

Smart-Health-Care-System-main/
  SmartHealthcareSystem-Backend/   <- Spring Boot backend
  SmartHealthCareSystem-main/      <- Angular frontend
Doctor/                            <- Python AI service

Clone this repository

To get a local copy up and running, run this command:

git clone https://github.com/Rakesh161rausahn/Angular-Spring-boot-Smart-Healthcare-System.git

4. Database Setup

Login to MySQL and create the schema if not present:

CREATE DATABASE IF NOT EXISTS healthcaresystem;

Edit SmartHealthcareSystem-Backend/src/main/resources/application.properties if you need to change credentials:

spring.datasource.url=jdbc:mysql://localhost:3306/healthcaresystem
spring.datasource.username=root
spring.datasource.password=YOUR_PASSWORD
spring.jpa.hibernate.ddl-auto=create-drop   # Dev only

Change create-drop to update or none for persistent data outside development.

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5. Run Backend (Spring Boot)

Development (auto reload via devtools):

cd "Smart-Health-Care-System-main/SmartHealthcareSystem-Backend"
mvn spring-boot:run

Build executable JAR:

cd "Smart-Health-Care-System-main/SmartHealthcareSystem-Backend"
mvn clean package -DskipTests
java -jar target/HealthcareManagement-Backend-0.0.1-SNAPSHOT.jar

Backend starts on: http://localhost:8081

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6. Run Angular Frontend (Development)

Install dependencies (first time):

cd "Smart-Health-Care-System-main/SmartHealthCareSystem-Frontend"
$env:NODE_OPTIONS="--openssl-legacy-provider"   # Only if using Node >=17
npm install --legacy-peer-deps

Start dev server:

$env:NODE_OPTIONS="--openssl-legacy-provider"
npm start

Access UI: http://localhost:4200

Production Build

$env:NODE_OPTIONS="--openssl-legacy-provider"
npm run build -- --configuration=production

Output: dist/HealthCareManagement/ Serve with a simple static server (example using npx serve):

npx serve -s dist/HealthCareManagement -l 4300

Visit: http://localhost:4300

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7. Run Python AI Service

Install packages (one time):

cd "Doctor"
python -m pip install --upgrade pip
pip install flask pandas scikit-learn numpy

Start service:

python app.py

AI service: http://localhost:10000

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8. Frontend ⇄ Backend Communication

Base API URL (development): http://localhost:8081 Services use an ApiConfigService (absolute URL) OR dev proxy (if re-enabled).

Key endpoints (unauthenticated):

• POST /registeruser – create patient
• POST /registerdoctor – create doctor
• POST /loginuser – user login (returns JWT token)
• POST /logindoctor – doctor login (returns JWT token)

On success, frontend stores:

• sessionStorage.TOKEN = Bearer <jwt>
• sessionStorage.USER and sessionStorage.ROLE

If duplicate user/doctor email -> backend returns 409 Conflict with plain message.

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9. Typical Start Sequence (All Services)

Open three PowerShell windows (or run sequentially):

1. Backend:

   cd "Smart-Health-Care-System-main/SmartHealthcareSystem-Backend"
   mvn spring-boot:run

2. Frontend:

   cd "Smart-Health-Care-System-main/SmartHealthCareSystem-Frontend"
   $env:NODE_OPTIONS="--openssl-legacy-provider"
   npm start

3. AI Service:

   cd "Doctor"
   python app.py

Visit http://localhost:4200 and register / login.

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10. Configuration & Customization

Property	File	Purpose
spring.jpa.hibernate.ddl-auto	application.properties	Schema generation strategy
server.port	application.properties	Change backend port (default 8081)
environment*.ts apiURL	Angular environments	Frontend base API URL
ApiConfigService	Angular service	Central URL builder

If you change backend port, update environment.ts & environment.prod.ts.

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11. Troubleshooting

Problem	Cause	Fix
Registration “failed” + network error to 8080	Old hardcoded port	Ensure all services use 8081 (search for 8080) / updated env
Button disabled on Register	Form invalid (confirm password not bound)	Ensure confirm password uses [(ngModel)] (already fixed)
"User already exists" even after restart	Using update schema & row exists	Delete row in table or switch to create-drop temporarily
CORS errors	Direct cross-origin calls	Run via same origin (Angular dev) or add proxy / configure CORS in backend
Angular build budget errors	Strict default budgets	Budgets increased in angular.json
Node engine warnings	Using Node 22 with Angular 12	Use Node 16/18 LTS or keep --openssl-legacy-provider
SciPy / NumPy version warning	Incompatible wheel with latest NumPy	Pin versions if needed: pip install numpy==2.0.2 scipy==1.11.4

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12. Security Notes

• create-drop recreates schema each restart – do not use in production.
• Admin login logic is hardcoded (email/password) – replace with secure backend verification.
• JWT tokens stored in sessionStorage – consider HttpOnly cookies for production.

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13. Next Improvements (Optional)

• Add HTTP interceptor to auto-attach JWT and handle 401 globally.
• Implement password hashing (BCrypt) in backend.
• Replace jQuery tab handling with pure Angular.
• Add unit tests for services and controllers.
• Dockerize all services (compose file for multi-container run).
• Add rate limiting & validation for public endpoints.

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14. Quick Clean & Reset

To wipe DB (dev):

TRUNCATE TABLE user;
TRUNCATE TABLE doctor;

Or temporarily set spring.jpa.hibernate.ddl-auto=create-drop and restart.

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15. License / Attribution

Internal academic / demonstration project. Add license file if distributing.

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16. Support

If something fails:

1. Check backend console for stack trace.
2. Open browser DevTools Network tab (verify calls hit http://localhost:8081/…)
3. Confirm MySQL is running and credentials correct.
4. Validate Angular environment API URL.
5. Run mvn clean package to ensure backend compiles.

Feel free to extend and optimize. Happy coding! ](https://github.com/Rakesh161rausahn/Angular-Spring-boot-Smart-Healthcare-System.git)