Snippet

Using Query Parameters

@RequestParam is used to read query parameters from the URL (e.g., /search?q=java). You can define default values to make the parameter optional.

snippet.java

java

@GetMapping("/search")
public String search(@RequestParam(name = "q", defaultValue = "none") String query) {
    return "Result for: " + query;
}

spring

Breakdown

@RequestParam(name = "q")

Extracts the parameter named 'q' from the URL query string.

defaultValue = "none"

Sets a fallback value if the parameter is not provided.