[Solved] Identify the error in this custom properties class that prevents property binding: @ConfigurationProperties(prefix = "server") public class ServerProperties { private String port; | Spring Boot

Spring Boot - Application Configuration

Identify the error in this custom properties class that prevents property binding:

@ConfigurationProperties(prefix = "server")
public class ServerProperties {
    private String port;
    public String getPort() { return port; }
    // Missing setter method
}

AMissing setter method for 'port' prevents binding

BPrefix 'server' is invalid and causes error

CClass must be annotated with @Component

DField 'port' should be public for binding

Step-by-Step Solution

Solution:

Step 1: Check property binding requirements
Spring Boot binds properties using setters. Without a setter for 'port', the value cannot be set.
Step 2: Validate other options
The prefix 'server' is valid. The class does not require @Component if registered via @EnableConfigurationProperties. Fields should be private with getters/setters, not public.
Final Answer:
Missing setter method for 'port' prevents binding -> Option A
Quick Check:
Setter missing = binding fails [OK]

Quick Trick: Always add setters for fields to enable binding [OK]

Common Mistakes:

Assuming prefix must be custom or different
Thinking @Component is always required
Making fields public instead of using setters

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More Spring Boot Quizzes

Identify the error in this custom properties class that prevents property binding:

Step 1: Check property binding requirements

Step 2: Validate other options

Final Answer:

Quick Check:

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