java / beginner
Snippet
Extracting Path Variables
The @PathVariable annotation is used to extract values from the URI path. This is useful for creating RESTful URLs where the resource identifier is part of the path itself.
snippet.java
java
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@GetMapping("/users/{id}")public String getUser(@PathVariable("id") Long id) {return "User ID: " + id;}
spring
Breakdown
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@GetMapping("/users/{id}")
Defines a dynamic segment '{id}' in the URL path.
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@PathVariable("id")
Binds the path segment to the method argument.