测试页面,无需关心
Welcome to Hexo! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, you can find the answer in troubleshooting or you can ask me on GitHub.
测试页面,无需关心
Welcome to Hexo! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, you can find the answer in troubleshooting or you can ask me on GitHub.
错误的文字内容:Diagnostic:Exception in windowonload: Error An error has occurrediSPlugin.3005StackTrace:Error An error has occurredJSPlugin.3005 at getString
mybatis可以抽象为三层:基础支持层(框架支撑层)、数据处理层和接口层
一条 SQL 的请求过程首先会经过 Executor 执行器,它主要负责管理创建 StatementHandler 对象,然后由 StatementHandler 对象进行数据库的连接以及生成 Statement 对象,并解析 SQL 参数, ParameterHandler 对象负责把 Mapper 方法中的参数映射到 XML 中的 SQL 语句中,最后由ResultSetHandler进行 SQL 结果集的处理工作