<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[weixin_45856470的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/weixin_45856470</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; weixin_45856470]]></copyright><item><title><![CDATA[mysql中select语句的执行顺序]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/140347020</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/140347020</guid><author>weixin_45856470</author><pubDate>Thu, 11 Jul 2024 11:25:25 +0800</pubDate><description><![CDATA[这一阶段读取表的数据，并准备执行后续的操作。如果有多表连接，这一步也会涉及连接操作（INNER JOIN、LEFT JOIN、RIGHT JOIN、CROSS JOIN 等）。这一阶段用于过滤分组后的数据。HAVING 与 WHERE 的区别在于 HAVING 作用于分组后的数据，而 WHERE 作用于分组前的数据。这一阶段对数据进行分组，通常与聚合函数（如 COUNT, SUM, AVG 等）一起使用。这一阶段对读取的数据应用条件过滤，仅保留满足条件的记录。这一阶段用于去除结果集中重复的行。]]></description><category></category></item><item><title><![CDATA[在mysql中delete和truncated的相同点和区别点]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/140335431</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/140335431</guid><author>weixin_45856470</author><pubDate>Wed, 10 Jul 2024 22:03:36 +0800</pubDate><description><![CDATA[在mysql中delete和truncated的相同点和区别点]]></description><category></category></item><item><title><![CDATA[MySQL的逻辑架构]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/140335174</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/140335174</guid><author>weixin_45856470</author><pubDate>Wed, 10 Jul 2024 21:48:49 +0800</pubDate><description><![CDATA[所以要使用MySQL，我们可以编写代码和MySQL  Server建立TCP连接，之后按照其定义好的协议进行交互。所有的数据，数据库、表的定义，表的每一行的内容，索引，都是存在文件系统上，以文件 的方式存在的，并完成与存储引擎的交互。Mysql是典型的C/S架构，即Client/Server架构，服务器端程序使用mysqlId.( mysqld是SQL后台程序(即MySQL服务器)要想使用客户端程序，该程序必须运行，因为客户端通过连接服务器来访问数据)Access denied for user错误。]]></description><category></category></item><item><title><![CDATA[@ModelAttribute]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/139871485</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/139871485</guid><author>weixin_45856470</author><pubDate>Fri, 21 Jun 2024 22:55:50 +0800</pubDate><description><![CDATA[ModelAttribute 也可以用在有 @RequestMapping 注解的方法上，表示该方法返回的对象应该添加到模型中。在上面的示例中，addAttributes 方法会在每个请求处理方法执行之前执行，并将属性 ctx 添加到模型中，这样在视图中可以访问 ctx。@ModelAttribute：用于从模型中绑定参数，如果模型中没有该参数，会自动创建一个新的对象并添加到模型中。@ModelAttribute：用于准备模型数据，返回的对象会被添加到模型中，但不会直接处理请求。]]></description><category></category></item><item><title><![CDATA[MySQL面试题]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/128358781</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/128358781</guid><author>weixin_45856470</author><pubDate>Sun, 18 Dec 2022 00:42:44 +0800</pubDate><description><![CDATA[MYSQL]]></description><category></category></item><item><title><![CDATA[深入浅出网络编程TCP，UDP，Socket，Http网络编程面试题]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/124230547</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/124230547</guid><author>weixin_45856470</author><pubDate>Fri, 16 Dec 2022 17:00:02 +0800</pubDate><description><![CDATA[网络编程的本质是多台计算机之间的数据交换。]]></description><category></category></item><item><title><![CDATA[深入浅出RPC]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/128310100</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/128310100</guid><author>weixin_45856470</author><pubDate>Wed, 14 Dec 2022 01:18:12 +0800</pubDate><description><![CDATA[RPC（Remote Procedure Call Protocol）远程过程调用协议，它是一种通过网络从远程计算机程序上请求服务，而不需要了解底层网络技术的协议。简言之，RPC使得程序能够像访问本地系统资源一样，去访问远端系统资源。]]></description><category></category></item><item><title><![CDATA[dubbo和springcloud对比]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/128297938</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/128297938</guid><author>weixin_45856470</author><pubDate>Tue, 13 Dec 2022 10:28:38 +0800</pubDate><description><![CDATA[dubbo和springcloud对比]]></description><category></category></item><item><title><![CDATA[Dubbo的整体结构设计和分层]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/128293091</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/128293091</guid><author>weixin_45856470</author><pubDate>Mon, 12 Dec 2022 21:09:40 +0800</pubDate><description><![CDATA[Dubbo的整体架构设计和分层]]></description><category></category></item><item><title><![CDATA[CAP理论，BASE理论]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/128292774</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/128292774</guid><author>weixin_45856470</author><pubDate>Mon, 12 Dec 2022 20:51:48 +0800</pubDate><description><![CDATA[CAP理论和BASE理论]]></description><category></category></item><item><title><![CDATA[SpringMVC异常处理器]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/128179116</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/128179116</guid><author>weixin_45856470</author><pubDate>Sun, 04 Dec 2022 23:58:51 +0800</pubDate><description><![CDATA[思路:
1.先通过自定义异常，完成BusinessException和SystemException的定义
2.将其他异常包装成自定义异常类型
3.在异常处理器类中对不同的异常进行处理]]></description><category></category></item><item><title><![CDATA[springmvc参数解析器HandlerMethodArgumentResolver：实现自动注入登录人信息功能]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/128043360</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/128043360</guid><author>weixin_45856470</author><pubDate>Fri, 25 Nov 2022 19:55:08 +0800</pubDate><description><![CDATA[springmvc参数解析器HandlerMethodArgumentResolver：实现自动注入登录人信息功能]]></description><category></category></item><item><title><![CDATA[Spring Boot starter]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127973450</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127973450</guid><author>weixin_45856470</author><pubDate>Mon, 21 Nov 2022 22:23:43 +0800</pubDate><description><![CDATA[spring boot 在配置上相比spring要简单许多, 其核心在于spring-boot-starter, 在使用spring boot来搭建一个项目时, 只需要引入官方提供的starter, 就可以直接使用, 免去了各种配置。starter简单来讲就是引入了一些相关依赖和一些初始化的配置。]]></description><category></category></item><item><title><![CDATA[MyBatis]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127248605</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127248605</guid><author>weixin_45856470</author><pubDate>Wed, 19 Oct 2022 22:48:27 +0800</pubDate><description><![CDATA[✔ 构建工具：maven 3.5.4✔ MySQL版本：MySQL 8✔ MyBatis版本：MyBatis 3.5.7MySQL不同版本的注意事项✔ 1、驱动类driver-class-name
✔ 2、连接地址url
✔ 否则运行测试用例报告如下错误：
java.sql.SQLException: The server time zone value ‘ÖÐ¹ú±ê×¼Ê±¼ä’ is unrecognized orrepresents more①打包方式：jar②pom.xml引入依赖
3.创建MyB]]></description><category></category></item><item><title><![CDATA[MySQL DQL]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127217587</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127217587</guid><author>weixin_45856470</author><pubDate>Mon, 17 Oct 2022 20:57:59 +0800</pubDate><description><![CDATA[数据库查询语言]]></description><category></category></item><item><title><![CDATA[SpringBoot]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127189136</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127189136</guid><author>weixin_45856470</author><pubDate>Sat, 08 Oct 2022 21:28:07 +0800</pubDate><description><![CDATA[SpringBoot技术由Pivotal团队研发制作，功能的话简单概括就是加速Spring程序的开发]]></description><category></category></item><item><title><![CDATA[java基础]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127196343</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127196343</guid><author>weixin_45856470</author><pubDate>Sat, 08 Oct 2022 13:33:10 +0800</pubDate><description><![CDATA[java基础，回头复习]]></description><category></category></item><item><title><![CDATA[Spring MVC]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127161893</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127161893</guid><author>weixin_45856470</author><pubDate>Wed, 05 Oct 2022 00:33:52 +0800</pubDate><description><![CDATA[SpringMVC框架处理web请求]]></description><category></category></item><item><title><![CDATA[spring IOC]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127150749</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127150749</guid><author>weixin_45856470</author><pubDate>Mon, 03 Oct 2022 15:58:45 +0800</pubDate><description><![CDATA[IOC：Inversion of Control，控制反转]]></description><category></category></item><item><title><![CDATA[python容器]]></title><link>https://blog.youkuaiyun.com/weixin_45856470/article/details/127138368</link><guid>https://blog.youkuaiyun.com/weixin_45856470/article/details/127138368</guid><author>weixin_45856470</author><pubDate>Sat, 01 Oct 2022 23:28:55 +0800</pubDate><description><![CDATA[Python有哪些数据容器
> 列表list 
> 元祖tuple
> 字符串str
> 集合set
> 字典dict]]></description><category></category></item></channel></rss>