[Solved] Consider this Spring Boot REST controller method:@GetMapping("/employee") public Employee getEmployee() { return new Employee("Bob", 25);... | Spring Boot

Spring Boot - Messaging

Consider this Spring Boot REST controller method:

@GetMapping("/employee")
public Employee getEmployee() {
  return new Employee("Bob", 25);
}

Employee class has private fields 'name' and 'age' with public getters. What JSON will be returned?

A{"name":"Bob","age":25}

B{"name":"Bob"}

C{"age":25}

D{}

Step-by-Step Solution

Solution:

Step 1: Identify serialization behavior
Jackson serializes all fields with public getters by default.
Step 2: Check fields and getters
Employee has 'name' and 'age' with public getters, so both are included.
Step 3: Determine JSON output
Both fields appear in JSON with their values.
Final Answer:
{"name":"Bob","age":25} -> Option A
Quick Check:
Public getters produce full JSON output [OK]

Quick Trick: Public getters expose fields in JSON output [OK]

Common Mistakes:

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