Freaks City

Business Rules Single or multiple dishes can be removed in one operation. Dishes currently avialable for sale cannot be deleted. Dishes linked to setmeal packages cannot be removed. Associated flavor records must be cleared when a dish is deleted. A single endpoint handles both single and batch deletion. To verify if a dish belongs to a setme ...

Maven DependenciesTo integrate MyBatis with XML configuration, the necessary dependencies must be included in the pom.xml file. This typically involves adding the MyBatis Spring Boot Starter and the MySQL connector, similar to the annotation-based approach.Defining the EntityThe data model remains consistent. A standard Java POJO is used to rep ...

How MyBatis Mappers Are Implemented and Why Interfaces Suffice for SQL Execution MyBatis employs JDK dynamic proxies to implement mapper interfaces, allowing developers to work with interfaces rather then concrete implementations. These mapper proxies are obtained through the SqlSession interface, which serves as the primary API for database ...

Establishing the project foundation involves defining a clear module structure. The dao and pojo directories host auto-generated mapper interfaces and corresponding entity models. Business logic resides in service, while controller manages inbound HTTP requests. Utility functions are grouped under util. Frontend styling and scripts are segregat ...

System Overview Urban vehicle density has surged, creating significant challenges in locating available parking. Drivers often waste considerable time circling blocks to find a spot. This parking management application addresses the issue by providing real-time visibility into parking availability, enabling drivers to quickly identify and secur ...

Executing SQL Statements When calling a mapper method like: User user = mapper.selectUser(1); The call is handled through JDK dynamic proxy, which routes all method calls to the MapperProxy.invoke() method. Frequently Asked Questions Why use MapperProxy? It solves hardcoding issues and enables compile-time checking. Its main responsibility i ...

Overview This article presents a comprehensive solution for building an integrated agriculture commerce platform that connects farmers with consumers. The system combines modern web and mobile technologies to streamline crop cultivation management and direct sales operations. Architecture Design The platform adopts a microservices-ready monolit ...

System Overview With the advancement of internet technology, it has become an integral part of various societal sectors, enabling efficient information dissemination and management through digital platforms. In addresing challenges such as disorganized health data, high error rates, poor security, and labor-intensive processes in employee healt ...

MyBatis Fundamentals Database and Dependency Setup Create a database table: CREATE TABLE tb_user ( id INT PRIMARY KEY AUTO_INCREMENT, username VARCHAR(20), password VARCHAR(20), gender CHAR(1), addr VARCHAR(30) ); INSERT INTO tb_user VALUES (1, 'zhangsan', '123', '男', '北京'); INSERT INTO tb_user VALUES (2, '李四', '234', '女', '天津'); INSE ...

System Overview This article explores the architectural design and implementation of a comprehensive real estate sales management system built on a modern technology stack comprising Spring Boot for backend services, Vue.js for web frontend development, and UniApp for cross-platform mobile application development. The system encompasses propert ...