Added delete a Product

Author: springframeworkguru

src/main/java/guru/springframework/controllers/ProductController.java

@@ -55,4 +55,11 @@ public String saveOrUpdateProduct(Product product){
         Product savedProduct = productService.saveOrUpdateProduct(product);
         return "redirect:/product/" + savedProduct.getId();
     }
+
+    @RequestMapping("/product/delete/{id}")
+    public String delete(@PathVariable Integer id){
+        productService.deleteProduct(id);
+
+        return "redirect:/products";
+    }
 }

src/main/java/guru/springframework/services/ProductService.java

@@ -14,4 +14,6 @@ public interface ProductService {
     Product getProductById(Integer id);
 
     Product saveOrUpdateProduct(Product product);
+
+    void deleteProduct(Integer id);
 }

src/main/java/guru/springframework/services/ProductServiceImpl.java

@@ -46,6 +46,11 @@ private Integer getNextKey(){
         return Collections.max(products.keySet()) + 1;
     }
 
+    @Override
+    public void deleteProduct(Integer id) {
+        products.remove(id);
+    }
+
     private void loadProducts(){
         products = new HashMap<>();
 

src/main/resources/templates/products.html

@@ -26,6 +26,7 @@ <h2>Product List</h2>
                 <th>Image URL</th>
                 <th>List</th>
                 <th>Edit</th>
+                <th>Delete</th>
             </tr>
             <tr th:each="product : ${products}">
                 <td th:text="${product.id}"></td>
@@ -34,6 +35,7 @@ <h2>Product List</h2>
                 <td th:text="${product.imageUrl}"></td>
                 <td><a th:href="${'/product/' + product.id}">View</a> </td>
                 <td><a th:href="${'/product/edit/' + product.id}">Edit</a> </td>
+                <td><a th:href="${'/product/delete/' + product.id}">Delete</a> </td>
             </tr>
         </table>
     </div>