Hibernate Panache

В современной инженерии корпоративного программного обеспечения создание RESTful API является краеугольным камнем разработки серверных систем. Десятилетиями разработчики Java полагались на традиционные фреймворки, такие как Spring Boot или Jakarta EE. Встречайте Quarkus—фреймворк Supersonic Subatomic Java, созданный специально для OpenJDK HotSpot и GraalVM. 1. Почему стоит выбрать Quarkus для Java REST API? A. Реактивный парадигма RESTEasy B. Dev Services и Live Coding без конфигурации 2. Архитектура Quarkus REST API 3. Инициализация проекта и зависимости mvn io.quarkus.platform:quarkus-maven-plugin:3.15.0:create \ -DprojectGroupId=com.ghaznix.api \ -DprojectArtifactId=quarkus-product-api \ -DclassName="com.ghaznix.api.ProductResource" \ -Dpath="/api/products" \ -Dextensions="resteasy-reactive-jackson,hibernate-orm-panache,jdbc-postgresql,hibernate-validator,smallrye-openapi" 4. Настройка свойств приложения # Application Configuration quarkus.application.name=quarkus-product-api quarkus.http.port=8080 # Database Configuration (Dev Services will override in dev mode automatically) quarkus.datasource.db-kind=postgresql quarkus.datasource.username=postgres quarkus.datasource.password=secret quarkus.datasource.jdbc.url=jdbc:postgresql://localhost:5432/product_db # Hibernate ORM Configuration quarkus.hibernate-orm.database.generation=drop-and-create quarkus.hibernate-orm.log.sql=true # Swagger UI & OpenAPI Path quarkus.swagger-ui.always-include=true quarkus.swagger-ui.path=/swagger-ui 5. Доменная модель и Active Record с Panache package com.ghaznix.api; import io.quarkus.hibernate.orm.panache.PanacheEntity; import jakarta.persistence.Column; import jakarta.persistence.Entity; import jakarta.persistence.Table; import jakarta.validation.constraints.Min; import jakarta.validation.constraints.NotBlank; import jakarta.validation.constraints.NotNull; import java.math.BigDecimal; import java.util.List; @Entity @Table(name = "products") public class Product extends PanacheEntity { @NotBlank(message = "Product name cannot be blank") @Column(nullable = false) public String name; @Column(length = 1000) public String description; @NotNull(message = "Price is required") @Min(value = 0, message = "Price must be non-negative") @Column(nullable = false) public BigDecimal price; @Column(nullable = false) public Integer stockQuantity; public String category; // Static Finder Utility Methods powered by Panache public static List<Product> findByCategory(String category) { return list("category", category); } public static List<Product> findAvailableProducts() { return list("stockQuantity > 0"); } } 6. Создание конечных точек REST для продакшена package com.ghaznix.api; import io.quarkus.panache.common.Page; import io.quarkus.panache.common.Sort; import jakarta.transaction.Transactional; import jakarta.validation.Valid; import jakarta.ws.rs.*; import jakarta.ws.rs.core.MediaType; import jakarta.ws.rs.core.Response; import org.eclipse.microprofile.openapi.annotations.Operation; import org.eclipse.microprofile.openapi.annotations.responses.APIResponse; import org.eclipse.microprofile.openapi.annotations.tags.Tag; import java.net.URI; import java.util.List; @Path("/api/products") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) @Tag(name = "Product REST API", description = "Operations for managing catalog products") public class ProductResource { @GET @Operation(summary = "Get all products with pagination") @APIResponse(responseCode = "200", description = "List of products retrieved successfully") public List<Product> getAllProducts( @QueryParam("page") @DefaultValue("0") int pageIndex, @QueryParam("size") @DefaultValue("10") int pageSize, @QueryParam("sort") @DefaultValue("name") String sortBy) { return Product.findAll(Sort.by(sortBy)) .page(Page.of(pageIndex, pageSize)) .list(); } @GET @Path("/{id}") @Operation(summary = "Get product by ID") @APIResponse(responseCode = "200", description = "Product details found") @APIResponse(responseCode = "404", description = "Product not found") public Product getProductById(@PathParam("id") Long id) { Product product = Product.findById(id); if (product == null) { throw new NotFoundException("Product with ID " + id + " does not exist."); } return product; } @POST @Transactional @Operation(summary = "Create a new product") @APIResponse(responseCode = "201", description = "Product created successfully") @APIResponse(responseCode = "400", description = "Invalid request payload") public Response createProduct(@Valid Product product) { product.persist(); return Response.created(URI.create("/api/products/" + product.id)) .entity(product) .build(); } @PUT @Path("/{id}") @Transactional @Operation(summary = "Update an existing product") @APIResponse(responseCode = "200", description = "Product updated") @APIResponse(responseCode = "404", description = "Product ID not found") public Product updateProduct(@PathParam("id") Long id, @Valid Product updatedProduct) { Product entity = Product.findById(id); if (entity == null) { throw new NotFoundException("Product with ID " + id + " not found."); } entity.name = updatedProduct.name; entity.description = updatedProduct.description; entity.price = updatedProduct.price; entity.stockQuantity = updatedProduct.stockQuantity; entity.category = updatedProduct.category; return entity; } @DELETE @Path("/{id}") @Transactional @Operation(summary = "Delete a product by ID") @APIResponse(responseCode = "204", description = "Product deleted successfully") @APIResponse(responseCode = "404", description = "Product ID not found") public Response deleteProduct(@PathParam("id") Long id) { boolean deleted = Product.deleteById(id); if (!deleted) { throw new NotFoundException("Product with ID " + id + " not found."); } return Response.noContent().build(); } } 7. Реактивные конечные точки REST против блокирующего выполнения import io.smallrye.mutiny.Uni; import io.smallrye.mutiny.Multi; @GET @Path("/reactive/{id}") public Uni<Product> getProductReactive(@PathParam("id") Long id) { return Product.<Product>findByIdAsync(id) .onItem().ifNull().failWith(new NotFoundException("Product not found")); } @GET @Path("/stream") @Produces(MediaType.SERVER_SENT_EVENTS) public Multi<Product> streamProducts() { return Product.streamAll(); } 8. Глобальная обработка исключений package com.ghaznix.api.exception; import jakarta.ws.rs.NotFoundException; import jakarta.ws.rs.core.MediaType; import jakarta.ws.rs.core.Response; import jakarta.ws.rs.ext.ExceptionMapper; import jakarta.ws.rs.ext.Provider; import java.time.Instant; import java.util.HashMap; import java.util.Map; @Provider public class GlobalExceptionMapper implements ExceptionMapper<Exception> { @Override public Response toResponse(Exception exception) { Map<String, Object> errorPayload = new HashMap<>(); errorPayload.put("timestamp", Instant.now().toString()); if (exception instanceof NotFoundException) { errorPayload.put("status", 404); errorPayload.put("error", "Not Found"); errorPayload.put("message", exception.getMessage()); return Response.status(Response.Status.NOT_FOUND) .entity(errorPayload) .type(MediaType.APPLICATION_JSON) .build(); } errorPayload.put("status", 500); errorPayload.put("error", "Internal Server Error"); errorPayload.put("message", exception.getMessage()); return Response.status(Response.Status.INTERNAL_SERVER_ERROR) .entity(errorPayload) .type(MediaType.APPLICATION_JSON) .build(); } } 9. Автоматизированное тестирование с @QuarkusTest и REST Assured package com.ghaznix.api; import io.quarkus.test.junit.QuarkusTest; import io.restassured.http.ContentType; import org.junit.jupiter.api.Test; import static io.restassured.RestAssured.given; import static org.hamcrest.CoreMatchers.*; @QuarkusTest public class ProductResourceTest { @Test public void testGetAllProductsEndpoint() { given() .when().get("/api/products") .then() .statusCode(200) .contentType(ContentType.JSON); } @Test public void testCreateAndGetProduct() { Product product = new Product(); product.name = "Gaming Laptop"; product.description = "High-performance GPU laptop"; product.price = new java.math.BigDecimal("1499.99"); product.stockQuantity = 15; product.category = "Electronics"; // Test POST Endpoint Integer createdId = given() .contentType(ContentType.JSON) .body(product) .when().post("/api/products") .then() .statusCode(201) .body("name", equalTo("Gaming Laptop")) .extract().path("id"); // Test GET Endpoint by ID given() .pathParam("id", createdId) .when().get("/api/products/{id}") .then() .statusCode(200) .body("category", equalTo("Electronics")); } } ./mvnw test 10. Упаковка и компиляция в исполняемый файл GraalVM Native ./mvnw quarkus:dev ./mvnw package java -jar target/quarkus-app/quarkus-run.jar ./mvnw package -Dnative -Dquarkus.native.container-build=true ./target/quarkus-product-api-1.0.0-runner 2026-09-21 22:30:00,014 INFO [io.quarkus] (main) quarkus-product-api 1.0.0-runner native (powered by Quarkus 3.15.0) started in 0.018s. Listening on: http://0.0.0.0:8080 11. Сравнение производительности: Quarkus против Spring Boot Метрика Spring Boot (JVM) Quarkus (OpenJDK JVM) Quarkus (GraalVM Native) Улучшение Время запуска (холодный старт) 3,82 сек 1,18 сек 0,015 сек в 254 раза быстрее Занимаемая память (RSS) 184 МБ 108 МБ 28 МБ Экономия памяти 84% 12. Заключение и лучшие практики Ghaznix Blog.