java springboot如何写一个基于数据库的撮合交易系统？
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这个示例代码是一个简单的订单撮合交易系统，基于Spring Boot和Spring Data JPA，演示了订单的创建、撮合和交易记录的生成：
// 实体类
@Entity
public class Order {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private Long userId;
private String type; // "BUY" or "SELL"
private BigDecimal price;
private int quantity;
private boolean matched;
// ...其他字段、Getter和Setter
}
@Entity
public class Trade {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private Long buyerId;
private Long sellerId;
private BigDecimal price;
private int quantity;
private LocalDateTime tradeTime;
// ...其他字段、Getter和Setter
}
// 仓库接口
public interface OrderRepository extends JpaRepository<Order, Long> {
List<Order> findByTypeAndMatchedOrderByPriceAsc(String type, boolean matched);
}
public interface TradeReposito...点击查看剩余70%
by thinkfuture
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