Dostęp RESTowy - początek

PC33-SklepSpring/src/main/java/sklep/rest/ProductEndpoint.java

+package sklep.rest;
+
+import org.springframework.http.HttpStatusCode;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.server.ResponseStatusException;
+import sklep.model.Product;
+import sklep.photo.PhotoUtil;
+import sklep.repository.ProductRepository;
+
+import java.util.List;
+
+@Controller
+@RequestMapping("/rest/products")
+public class ProductEndpoint {
+    private ProductRepository productRepository;
+    private PhotoUtil photoUtil;
+
+    // Tutaj stosujemy wstrzykiwanie przez konstruktor.
+    public ProductEndpoint(ProductRepository productRepository, PhotoUtil photoUtil) {
+        this.productRepository = productRepository;
+        this.photoUtil = photoUtil;
+    }
+
+    @GetMapping
+    @ResponseBody
+    public List<Product> getProducts() {
+        return productRepository.findAll();
+    }
+
+    @GetMapping("/{id}")
+    @ResponseBody
+    public Product getProduct(@PathVariable int id) {
+        return productRepository.findById(id).orElseThrow(
+                () -> new ResponseStatusException(HttpStatusCode.valueOf(404),
+                        "Brak produktu o numerze " + id));
+    }
+
+}