[Solved] Given the controller method:@GetMapping("/items/{itemId}") public String getItem(@PathVariable String itemId,... }What will be the output when a client requests /items/42?order=desc? | Spring Boot

Spring Boot - Request and Response Handling

Given the controller method:

@GetMapping("/items/{itemId}")
public String getItem(@PathVariable String itemId, @RequestParam(defaultValue = "asc") String order) {
    return itemId + "-" + order;
}

What will be the output when a client requests /items/42?order=desc?

A"42-asc"

B"42-desc"

C"desc-42"

DRuntime error due to missing parameter

Step-by-Step Solution

Solution:

Step 1: Identify values from URL
Path variable itemId is "42" from /items/42. Query parameter order is "desc" from ?order=desc.
Step 2: Understand method return
The method returns itemId + "-" + order, so "42-desc".
Final Answer:
"42-desc" -> Option B
Quick Check:
Path variable + query param = "42-desc" [OK]

Quick Trick: Path variable fills {itemId}, query param fills order value [OK]

Common Mistakes:

Ignoring query parameter and using default
Mixing order of concatenation
Expecting error when query param is present

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More Spring Boot Quizzes

Given the controller method:

Step 1: Identify values from URL

Step 2: Understand method return

Final Answer:

Quick Check:

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