Springboot4 undertow

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-undertow</artifactId>
</dependency>

// 使用 ByteBuffer 读取请求数据
ByteBuffer buffer = ByteBuffer.allocate(1024);
servletInputStream.read(buffer);

// 自定义重定向响应
response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
response.setHeader("Location", newUrl);
response.getWriter().write("Resource has moved");

public interface ProductRepository extends BasicRepository<Product, Long> {
    // 自动获得基础 CRUD 操作：save(), findById(), findAll(), delete()
}

public interface UserRepository extends CrudRepository<User, String> {
    List<User> findByEmailContaining(String email);
    Page<User> findByStatus(UserStatus status, PageRequest page);
}

// 基于偏移量的分页
Page<Product> findByCategory(String category, PageRequest pageRequest);

CursoredPage<Product> findByPriceGreaterThan(
    BigDecimal price, 
    PageRequest pageRequest
);

public interface OrderRepository extends CrudRepository<Order, Long> {
    @Query("SELECT o FROM Order o WHERE o.status = ?1 AND o.total > ?2")
    List<Order> findHighValueOrders(OrderStatus status, BigDecimal minTotal);
}