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@Intercepts({ @Signature(type = StatementHandler.class, method = "prepare", args = {Connection.class, Integer.class}) }) @Component public class SoftDeleteInterceptor implements Interceptor { @Override public Object intercept(Invocation invocation) throws Throwable { StatementHandler handler = (StatementHandler) in ...

This system is built using the SSM (Spring, Spring MVC, MyBatis) framework for the backend, JSP for the frontend, and MySQL as the database. Core Technology Stack Backend: Spring Framework Spring provides comprehensive infrastructure support for Java development, handling dependency injection and aspect-oriented programming. Spring MVC serves a ...

Given the widespread adoption of WeChat, the client side of this platform is developed as a WeChat Mini Program to align with real-world usage scenarios. 1. Implementing WeChat Login (Controller Layer) @PostMapping("/wechat-login") @ApiOperation("WeChat user authentication") public Result<AuthResponseVO> authenticate(@ ...

Impact of Storage Engines on Transaction Handling In MyBatis development, developers often assume that every data modification requires an explicit sqlSession.commit() call to persist changes to the database. While this holds true for most production scenarios, the actual persistence behavior depends heavily on the underlying storage engine, sy ...

When building dynamic conditional queries in MyBatis, manual WHERE clause construction can introduce syntax errors from leading AND/OR operators or a dagnling WHERE keyword when no filters apply. For example, this flawed query snippet demonstrates both issues: <select id="fetchBlogEntry" resultType="BlogEntity"> SELE ...

Managing Third-Party Beans with IoC/DI Configuration ======================================================= This section demonstrates how to manage third-party beans using Spring's Inversion of Control (IoC) container. We'll use DruidDataSource and ComboPooledDataSource as examples. 1.1 Managing a Data Source Object 1.1.1 Environment Setup ...

Interface Proxy Implementation Proxy Development Approach MyBatis enables DAO layer creation through interface proxies. The framework dynamical generates proxy objects implementing mapper interfaces, eliminating manual DAO implementations. Development Requirements: XML mapper namespace must match the interface's fully qualified name Method nam ...

SQL Execution Flow Recap Standard MyBatis execution involves explicit DAO implementation classes handling SQL execution. The typical flow requires: Defining a DAO interface Implementing the interface with explicit SQL execution logic Manually mapping method names to SQL statement IDs This manual mapping creates unnecessary boilerplate code. T ...

MyBatis operates as a semi-automated ORM framework, decoupling SQL from Java code via XML or annotations. Its SQL execution follows a delegation chain: SqlSession.getMapper() produces a proxy, MapperProxy intercepts calls, MapperMethod translates them, and Executor handles database interaction, caching, and plugins. This article dissects the ca ...

Maven Dependencies Add the following dependencies to you're pom.xml: <!-- MyBatis integration for Spring Boot --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <!-- MySQL ...