mybatisplus 自定义拦截器

Mybatis-Plus是Mybatis的增强工具，在Mybatis的基础上进行了封装，简化了开发流程。Mybatis-Plus同样支持自定义拦截器，下面是自定义拦截器的步骤：

1.实现Interceptor接口

public class MyInterceptor implements Interceptor {
    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        // 拦截逻辑
        return invocation.proceed();
    }

    @Override
    public Object plugin(Object target) {
        return Plugin.wrap(target, this);
    }

    @Override
    public void setProperties(Properties properties) {
        // 设置属性
    }
}

2.添加拦截器注解

@Intercepts({
    @Signature(type = Executor.class, method = "update", args = {MappedStatement.class, Object.class}),
    @Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class})
})
public class MyInterceptor implements Interceptor {
    // ...
}

3.在Mybatis配置文件中添加拦截器

<configuration>
    <plugins>
        <plugin interceptor="com.example.MyInterceptor">
            <property name="prop1" value="value1"/>
            <property name="prop2" value="value2"/>
        </plugin>
    </plugins>
</configuration>