Spring Boot 3 Annotations

 Spring Boot 3 Annotations:

@PathVariable

@GetMapping("/students/{studentId}")
public Student getStudent(@PathVariable int studentId) {
    return theStudents.get(studentId);
}

@RequestBody

@PostMapping("/employees")
public Employee addEmployee(@RequestBody Employee theEmployee) { 

   //@RequestBody annotation is used to bind the HTTP request body to a method parameter in a controller method.

    theEmployee.setId(0);

    Employee dbEmployee = employeeService.save(theEmployee);

    return dbEmployee;
}