[DAY 15] HINDI Exception Handling in Spring Boot | @ControllerAdvice, Custom Exceptions, Logging

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🚀 Production-ready exception handling aur logging sikhiye! @ControllerAdvice, Custom Exceptions aur proper logging implementation.

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⏱️ VIDEO TIMESTAMPS
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0:00 - Course Introduction
7:46 - Exceptions in Spring Boot Overview
11:05 - Structuring Application with Service Layer
22:12 - Exception Handling Using In-Built Exceptions
27:07 - @ExceptionHandler Annotation
38:35 - Global Exception Handling with @RestControllerAdvice
53:16 - Custom Exceptions Implementation
58:01 - Logging in Spring Boot (SLF4J & Logback)
1:12:00 - Logging and Exceptions Combined
1:17:10 - Message from Faisal

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📚 IS VIDEO MEIN AAP SIKHENGE:

✅ Spring Boot mein exception handling
✅ Service layer architecture
✅ @ExceptionHandler annotation
✅ @RestControllerAdvice for global handling
✅ Custom exception classes create karna
✅ SLF4J & Logback logging framework
✅ Log levels (INFO, DEBUG, ERROR, WARN)
✅ Exception logging best practices
✅ Error response standardization

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🎯 KEY CONCEPTS:

🔹 Exception Handling Strategy
• In-built exceptions (ResponseStatusException)
• Controller-level @ExceptionHandler
• Global @ControllerAdvice/@RestControllerAdvice
• Custom exception hierarchy
• Error response DTO

🔹 Annotations Covered
• @ExceptionHandler
• @ControllerAdvice
• @RestControllerAdvice
• @ResponseStatus
• Custom annotations

🔹 Logging Framework
• SLF4J (Simple Logging Facade)
• Logback configuration
• Logger instance creation
• Log levels hierarchy
• File-based logging

🔹 Best Practices
• Centralized exception handling
• Meaningful error messages
• Proper HTTP status codes
• Exception logging
• Stack trace management

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💡 LAYERED ARCHITECTURE:

Controller → Service → Repository
↓ ↓ ↓
Exception Handling at each layer
↓
@ControllerAdvice (Global Handler)

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🔧 CUSTOM EXCEPTION EXAMPLES:

• ResourceNotFoundException (404)
• BadRequestException (400)
• UnauthorizedException (401)
• DuplicateResourceException (409)

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📊 LOG LEVELS:

🔹 TRACE - Most detailed
🔹 DEBUG - Debugging info
🔹 INFO - General information
🔹 WARN - Warning messages
🔹 ERROR - Error conditions

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Video notes: [COMING SOON]
Video Details + Syllabus + Study Plan: https://docs.google.com/spreadsheets/...
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#SpringBoot #ExceptionHandling #ControllerAdvice #Logging #JavaBackend #SpringBootHindi