spring-boot-tutorial-5f.java

@RestController
@RequestMapping("/products")
public class ProductController {

    @Autowired
    private ProductService productService;

    @GetMapping("/{id}")
    public ResponseEntity<Product> getProduct(@PathVariable("id") String id) {
        Product product = productService.getProduct(id);
        return ResponseEntity.ok(product);
    }

    @PostMapping
    public ResponseEntity<Product> createProduct(@RequestBody Product request) {
        Product product = productService.createProduct(request);

        URI location = ServletUriComponentsBuilder
                .fromCurrentRequest()
                .path("/{id}")
                .buildAndExpand(product.getId())
                .toUri();

        return ResponseEntity.created(location).body(product);
    }

    @PutMapping("/{id}")
    public ResponseEntity<Product> replaceProduct(
            @PathVariable("id") String id, @RequestBody Product request) {
        Product product = productService.replaceProduct(id, request);
        return ResponseEntity.ok(product);
    }

    @DeleteMapping("/{id}")
    public ResponseEntity deleteProduct(@PathVariable("id") String id) {
        productService.deleteProduct(id);
        return ResponseEntity.noContent().build();
    }

    @GetMapping
    public ResponseEntity<List<Product>> getProducts(@ModelAttribute ProductQueryParameter param) {
        List<Product> products = productService.getProducts(param);
        return ResponseEntity.ok(products);
    }

}