<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Sunny_yaa的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Sunny_yaa</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Sunny_yaa]]></copyright><item><title><![CDATA[如何在IDEA中用git提交设置忽略文件的方法]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/139505781</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/139505781</guid><author>Sunny_yaa</author><pubDate>Thu, 06 Jun 2024 17:27:27 +0800</pubDate><description><![CDATA[在IDEA设置忽略文件]]></description><category></category></item><item><title><![CDATA[Idea切换分支提示：Your local changes to the following files would be overwritten by checkout]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/138080568</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/138080568</guid><author>Sunny_yaa</author><pubDate>Mon, 22 Apr 2024 16:08:26 +0800</pubDate><description><![CDATA[Your local changes to the following files would be overwritten by checkout. IntelliJ IDEA can shelve the changes, Checkout and unshelve them after that]]></description><category></category></item><item><title><![CDATA[Steam流构建树结构]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/137084407</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/137084407</guid><author>Sunny_yaa</author><pubDate>Wed, 27 Mar 2024 17:47:11 +0800</pubDate><description><![CDATA[Steam 流构建树结构]]></description><category></category></item><item><title><![CDATA[更改git信息]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/136523897</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/136523897</guid><author>Sunny_yaa</author><pubDate>Thu, 07 Mar 2024 09:17:01 +0800</pubDate><description><![CDATA[由于刚入职接手的是别人使用过得电脑。里面的git信息还是上一个使用者的账号，导致一直都是用别人的账号提交代码。]]></description><category></category></item><item><title><![CDATA[Vue3实现动态样式修改]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/134496995</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/134496995</guid><author>Sunny_yaa</author><pubDate>Sun, 19 Nov 2023 22:28:28 +0800</pubDate><description><![CDATA[Vue3实现动态样式修改]]></description><category></category></item><item><title><![CDATA[保姆级Linux安装MYSQL教程]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/134496722</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/134496722</guid><author>Sunny_yaa</author><pubDate>Sun, 19 Nov 2023 22:21:45 +0800</pubDate><description><![CDATA[快速解决Linux下安装MYSQL]]></description><category></category></item><item><title><![CDATA[初识mysql索引(二)]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611407</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611407</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 14:16:23 +0800</pubDate><description><![CDATA[因为我们索引的目的是为了快速定位，如果值全是null 这个时候，索引就没有意义，直接走全表查询，如果只有一个null ，那就可以快速的定位出来。用or分开的条件 如果or左侧的条件有索引，or后面没索引 那么涉及到的索引都不生效，除非两次都用上了索引。查询全部的字段，有一些字段可能没有建立索引，导致需要去表中查询(回表查询)，所以会导致索引失效。在查询中，没有对字符串加单引号，MySQL的查询优化器，会自动的进行类型转化，造成索引失效。在联合索引中出现范围查询( > < ) 范围查询右侧的索引列失效。]]></description><category></category></item><item><title><![CDATA[初始mysql索引(一)]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611303</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611303</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 14:07:34 +0800</pubDate><description><![CDATA[索引是一种加快检索的数据库结构，他包含从表或者视图的一列或多列生成的键，以及映射到指定数据库存储位置的指针。索引是直接加在字段上的，创建索引是需要消耗时间的 ，索引也需要占用物理空间普通索引唯一索引：【UNIQUE】 主键自带索引聚集索引：【CLUSTERED】非聚集索引：【NONCLUSTERED】全文索引：  主要用于varchar  char  text等类型上单列索引：  只能作用一个字段多列索引 ： 多个字段连起来创建索引 空间索引。]]></description><category></category></item><item><title><![CDATA[mysql 触发器]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611268</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611268</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:58:39 +0800</pubDate><description><![CDATA[mysql触发器]]></description><category></category></item><item><title><![CDATA[mysql存储json数据]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611216</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611216</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:55:49 +0800</pubDate><description><![CDATA[【代码】mysql存储json数据。]]></description><category></category></item><item><title><![CDATA[JS实现点击复制文本]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611193</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611193</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:53:09 +0800</pubDate><description><![CDATA[【代码】JS实现点击复制文本。]]></description><category></category></item><item><title><![CDATA[MultipartFile详解]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611159</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611159</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:51:55 +0800</pubDate><description><![CDATA[为org.springframework.web.mutipart包下的一个类，也就是说如果想使用MultipartFile这个类就必须引入spring框架换句话说，如果想在项目中使用MultipartFile这个类，那么项目必须要使用spring框架才可以，否则无法引入这个类。MultipartFile翻译成中文来讲就是“多组件的文档”，不用太在乎他的中文含义，一般来讲使用MultipartFile这个类主要是来实现以表单的形式进行文件上传功能。]]></description><category></category></item><item><title><![CDATA[Aviator表达式引擎工具]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611103</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611103</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:49:02 +0800</pubDate><description><![CDATA[1.支持大部分运算操作符，包括算术操作符、关系运算符、逻辑操作符、正则匹配操作符(=~)、三元表达式?:，并且支持操作符的优先级和括号强制优先级，具体请看后面的操作符列表。3.支持正则表达式匹配，类似Ruby、Perl的匹配语法，并且支持类Ruby的$digit指向匹配分组。编译产生的 Expression 对象，最终都是调用 execute() 方法执行，得到结果。4.自动类型转换，当执行操作的时候，会自动判断操作数类型并做相应转换，无法转换即抛异常。5.支持传入变量，支持类似a.b.c的嵌套变量访问。]]></description><category></category></item><item><title><![CDATA[敏感词过滤]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611074</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611074</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:43:58 +0800</pubDate><description><![CDATA[springboot实现敏感词过滤]]></description><category></category></item><item><title><![CDATA[解析Excel数据]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611031</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131611031</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:40:53 +0800</pubDate><description><![CDATA[这里解析Excel我们使用apache下的poi依赖。]]></description><category></category></item><item><title><![CDATA[初识vue3]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131610770</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/131610770</guid><author>Sunny_yaa</author><pubDate>Sat, 08 Jul 2023 13:33:00 +0800</pubDate><description><![CDATA[初步认识学习vue3]]></description><category></category></item><item><title><![CDATA[Springboot整合RestTemplate]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/130190577</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/130190577</guid><author>Sunny_yaa</author><pubDate>Sun, 16 Apr 2023 23:57:02 +0800</pubDate><description><![CDATA[springboot整合RestTemplate]]></description><category></category></item><item><title><![CDATA[springboot使用xxl-job可视化定时任务]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/130181767</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/130181767</guid><author>Sunny_yaa</author><pubDate>Sun, 16 Apr 2023 14:04:50 +0800</pubDate><description><![CDATA[springboot实现可视化定时任务]]></description><category></category></item><item><title><![CDATA[BigDecimal类]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/127952922</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/127952922</guid><author>Sunny_yaa</author><pubDate>Sun, 20 Nov 2022 19:43:04 +0800</pubDate><description><![CDATA[BigDecimal类]]></description><category></category></item><item><title><![CDATA[hutool判断各种类型数据]]></title><link>https://blog.youkuaiyun.com/Sunny_yaa/article/details/127952896</link><guid>https://blog.youkuaiyun.com/Sunny_yaa/article/details/127952896</guid><author>Sunny_yaa</author><pubDate>Sun, 20 Nov 2022 19:37:58 +0800</pubDate><description><![CDATA[Hutool判断各种类似是否为空]]></description><category></category></item></channel></rss>