<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[FeiTwnd的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/FeiTwnd</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; FeiTwnd]]></copyright><item><title><![CDATA[后端学习笔记-ApaChe POI]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157439452</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157439452</guid><author>FeiTwnd</author><pubDate>Wed, 28 Jan 2026 20:51:02 +0800</pubDate><description><![CDATA[这个接口不需要参数也不需要返回数据。]]></description><category></category></item><item><title><![CDATA[后端学习笔记-WebSocket]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157398484</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157398484</guid><author>FeiTwnd</author><pubDate>Mon, 26 Jan 2026 19:56:35 +0800</pubDate><description><![CDATA[入门实现。]]></description><category></category></item><item><title><![CDATA[后端学习笔记-Spring Task]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157396148</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157396148</guid><author>FeiTwnd</author><pubDate>Mon, 26 Jan 2026 17:26:28 +0800</pubDate><description><![CDATA[cron表达式生成网站。]]></description><category></category></item><item><title><![CDATA[后端学习笔记-生成订单,微信订单支付]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157360047</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157360047</guid><author>FeiTwnd</author><pubDate>Sun, 25 Jan 2026 19:15:53 +0800</pubDate><description><![CDATA[【代码】后端学习笔记-生成订单,微信订单支付。]]></description><category></category></item><item><title><![CDATA[后端学习笔记-缓存数据]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157329138</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157329138</guid><author>FeiTwnd</author><pubDate>Sat, 24 Jan 2026 22:45:37 +0800</pubDate><description><![CDATA[在上述操作中因为涉及到多个菜品需要更新（删除操作，他们可能处于同一个分类也可能处于不同分类）或是更新菜品时可能是更新分类id，这样的时候都需要先查询了，得不偿失，可以直接清楚所有的分类缓存。对于管理端拥有的增删改三个操作，如果在数据库层面改了，缓存没有清理，就会导致用户读到的是脏数据，所以在进行三类操作时需要清理掉缓存数据。对于分类查询操作而言，在用户端这个接口需要频繁被调用，所以可以以分类id为key，菜品为值来存在redis当中。增加菜品时直接只更新相应的分类id即可。在删改操作中直接调用。]]></description><category></category></item><item><title><![CDATA[后端学习笔记-HttpClient,微信登录]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157246416</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157246416</guid><author>FeiTwnd</author><pubDate>Sat, 24 Jan 2026 15:03:46 +0800</pubDate><description><![CDATA[Get请求/*** 测试HttpClient发送Get请求*/@Test//创建HttpClient对象//创建HttpGet对象//发送请求,获取响应结果//输出响应结果System.out.println("响应状态码："+statusCode);System.out.println("响应结果："+body);//关闭资源流程代码流程controller层@Api(tags = "C端用户接口")@Slf4j@Autowired@Autowired。]]></description><category></category></item><item><title><![CDATA[后端学习笔记-Redis]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157219412</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157219412</guid><author>FeiTwnd</author><pubDate>Thu, 22 Jan 2026 09:32:48 +0800</pubDate><description><![CDATA[可以使用idea的数据库插件选数据源为Redis直连redis。Spring Data Redis使用方式。setnx创建失败显示0，即key已存在。Ubuntu下载Redis。]]></description><category></category></item><item><title><![CDATA[后端学习笔记-苍穹外卖]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/157131315</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/157131315</guid><author>FeiTwnd</author><pubDate>Wed, 21 Jan 2026 17:19:11 +0800</pubDate><description><![CDATA[entity dto vo 都属于pojo。填充一些公共字段实现思路，利用AOP。格式化时间，不让传数组。builder流式赋值。使用nginx的好处。]]></description><category></category></item><item><title><![CDATA[Web后端开发学习总结]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/154176495</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/154176495</guid><author>FeiTwnd</author><pubDate>Fri, 31 Oct 2025 11:31:36 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[Maven高级-分模块设计与开发]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/154084471</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/154084471</guid><author>FeiTwnd</author><pubDate>Fri, 31 Oct 2025 10:57:43 +0800</pubDate><description><![CDATA[分模块策略


继承

实现版本锁定自定义属性


聚合]]></description><category></category></item><item><title><![CDATA[SpringBoot原理篇]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/154010796</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/154010796</guid><author>FeiTwnd</author><pubDate>Wed, 29 Oct 2025 19:42:04 +0800</pubDate><description><![CDATA[外部高于内部。]]></description><category></category></item><item><title><![CDATA[ 后端学习笔记--SpringAOP ]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/153914815</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/153914815</guid><author>FeiTwnd</author><pubDate>Tue, 28 Oct 2025 10:10:26 +0800</pubDate><description><![CDATA[一个简单的AOP类。]]></description><category></category></item><item><title><![CDATA[ 后端学习笔记--登录认证]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/153392134</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/153392134</guid><author>FeiTwnd</author><pubDate>Sat, 25 Oct 2025 16:46:51 +0800</pubDate><description><![CDATA[本质就是查询语句控制器逻辑层。]]></description><category></category></item><item><title><![CDATA[学习笔记-全局异常处理器-员工信息统计]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/153264100</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/153264100</guid><author>FeiTwnd</author><pubDate>Tue, 14 Oct 2025 19:51:01 +0800</pubDate><description><![CDATA[case函数使用，流程控制函数。持久层 if流程判断。]]></description><category></category></item><item><title><![CDATA[ 学习笔记--删除员工,修改员工信息]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/153259715</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/153259715</guid><author>FeiTwnd</author><pubDate>Tue, 14 Oct 2025 15:48:58 +0800</pubDate><description><![CDATA[删除员工的同时需要关联删除员工的工作经历逻辑层：涉及到多条SQL语句，使用事务管理。]]></description><category></category></item><item><title><![CDATA[学习笔记--文件上传]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/153197850</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/153197850</guid><author>FeiTwnd</author><pubDate>Mon, 13 Oct 2025 19:59:04 +0800</pubDate><description><![CDATA[服务端接受文件使用UUID确保保存到本地的文件名不会冲突配置文件上传大小限制。]]></description><category></category></item><item><title><![CDATA[学习笔记--事务管理]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/153183490</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/153183490</guid><author>FeiTwnd</author><pubDate>Mon, 13 Oct 2025 14:38:54 +0800</pubDate><description><![CDATA[用于有多条数据库操作时，类似的前面新增员工的操作。]]></description><category></category></item><item><title><![CDATA[学习笔记--新增员工]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/152920995</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/152920995</guid><author>FeiTwnd</author><pubDate>Sat, 11 Oct 2025 11:17:30 +0800</pubDate><description><![CDATA[options注解给这个接口返回的对象加上数据库添加的主键id。逻辑层   将用户id赋值给工作经历。]]></description><category></category></item><item><title><![CDATA[学习笔记--分页查询 条件分页查询]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/152723433</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/152723433</guid><author>FeiTwnd</author><pubDate>Thu, 09 Oct 2025 17:27:01 +0800</pubDate><description><![CDATA[查询语句分页结果的封装。]]></description><category></category></item><item><title><![CDATA[多表查询--学习笔记]]></title><link>https://blog.youkuaiyun.com/FeiTwnd/article/details/152116901</link><guid>https://blog.youkuaiyun.com/FeiTwnd/article/details/152116901</guid><author>FeiTwnd</author><pubDate>Wed, 08 Oct 2025 13:22:00 +0800</pubDate><description><![CDATA[准备数据。]]></description><category></category></item></channel></rss>