<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[polarrwl的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/polarrwl</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; polarrwl]]></copyright><item><title><![CDATA[MaxKB开发环境搭建]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/147767244</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/147767244</guid><author>polarrwl</author><pubDate>Wed, 07 May 2025 16:13:49 +0800</pubDate><description><![CDATA[综合对比了几个开源的RAG框架，最终选择了MaxKB作为基础框架来实现RAG应用，MaxKB更轻量简单，对于企业内使用不需要那么复杂的系统（Dify等），简单好用扩展方便就可以了。]]></description><category></category></item><item><title><![CDATA[SOLID 原则]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/143625860</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/143625860</guid><author>polarrwl</author><pubDate>Fri, 08 Nov 2024 14:36:08 +0800</pubDate><description><![CDATA[我觉得SOLIT的关键就是找出不变和变化的部分；封装不变的，支持变化的扩展；不仅仅SOLID，很多原则都是这样；大道至简。]]></description><category></category></item><item><title><![CDATA[图解：增值税到底是什么？]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/140777340</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/140777340</guid><author>polarrwl</author><pubDate>Mon, 29 Jul 2024 17:55:31 +0800</pubDate><description><![CDATA[当说一个公司获得了2000元的收入时，这2000元通常是含税销售额。为了得到不含税销售额，我们需要从含税销售额中减去增值税部分。商店：销项票0.3元，进项票0.2元(对应供应商销项票0.2元)商店：利润：2.3 - 1.2 - 0.1 = 1元。不含税销售额 = 含税销售额 / (1 + 税率)税务局：收入：0.2 + 0.1 = 0.3元。供应商：利润：1.2 - 0.2 = 1元。供应商：销项票0.2元。]]></description><category></category></item><item><title><![CDATA[推荐一篇设计文章system-design-101]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/139488160</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/139488160</guid><author>polarrwl</author><pubDate>Thu, 06 Jun 2024 09:34:35 +0800</pubDate><description><![CDATA[来自Github的一篇系统设计文章，总结了一些常见的系统设计方案，其中图是画的真好，所谓一图盛千言，建议大家都能看看。]]></description><category></category></item><item><title><![CDATA[SQL优化相关]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/139402750</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/139402750</guid><author>polarrwl</author><pubDate>Mon, 03 Jun 2024 09:24:33 +0800</pubDate><description><![CDATA[这里只是总结一下，每个点也不做过多的解释。这里节选自ByteByteGo。]]></description><category></category></item><item><title><![CDATA[GIT更新合并Shell脚本]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/137769998</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/137769998</guid><author>polarrwl</author><pubDate>Mon, 15 Apr 2024 10:07:21 +0800</pubDate><description><![CDATA[快速迭代开发下，每天需要对几个工程的代码进行合并操作，1、2个还好，要是多了就很麻烦，非常花时间，而且都是重复劳动；所以这里整理了一个shell脚本可以一键对代码进行更新、比对、合并提交等。这里不过多解释，自行查看下脚本就知道怎么用了。]]></description><category></category></item><item><title><![CDATA[Neo4j容器无法重新启动的问题！]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/133669159</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/133669159</guid><author>polarrwl</author><pubDate>Sun, 08 Oct 2023 09:25:17 +0800</pubDate><description><![CDATA[Neo4j容器无法重新启动的问题]]></description><category></category></item><item><title><![CDATA[liteflow规则引擎使用示例和rule源扩展]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/132897364</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/132897364</guid><author>polarrwl</author><pubDate>Fri, 15 Sep 2023 10:59:12 +0800</pubDate><description><![CDATA[liteflow规则引擎使用示例和rule源扩展]]></description><category></category></item><item><title><![CDATA[Flink批处理metaspace内存溢出问题]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/128221004</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/128221004</guid><author>polarrwl</author><pubDate>Wed, 07 Dec 2022 16:29:10 +0800</pubDate><description><![CDATA[Flink metaspace内存泄漏问题]]></description><category></category></item><item><title><![CDATA[基于 confluent 的 kafka-connect-jdbc 数据同步方法！]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/126971883</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/126971883</guid><author>polarrwl</author><pubDate>Wed, 21 Sep 2022 14:16:39 +0800</pubDate><description><![CDATA[基于 confluent 的 kafka-connect-jdbc 数据同步方法]]></description><category></category></item><item><title><![CDATA[关于 http 请求的缓存问题？(nginx 缓存、浏览器缓存)]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/126971775</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/126971775</guid><author>polarrwl</author><pubDate>Wed, 21 Sep 2022 14:11:59 +0800</pubDate><description><![CDATA[关于 http 请求的缓存问题？(nginx 缓存、浏览器缓存)]]></description><category></category></item><item><title><![CDATA[Linux 下命令行 JVM 内存信息采集]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/126971731</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/126971731</guid><author>polarrwl</author><pubDate>Wed, 21 Sep 2022 14:10:13 +0800</pubDate><description><![CDATA[Linux 下命令行 JVM 内存信息采集]]></description><category></category></item><item><title><![CDATA[Golang提高写入文件性能]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/126971526</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/126971526</guid><author>polarrwl</author><pubDate>Wed, 21 Sep 2022 14:01:55 +0800</pubDate><description><![CDATA[goalng文件写入性能]]></description><category></category></item><item><title><![CDATA[Java SPI组件机制]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/126259812</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/126259812</guid><author>polarrwl</author><pubDate>Wed, 10 Aug 2022 09:29:43 +0800</pubDate><description><![CDATA[Java SPI组件化机制和场景运用]]></description><category></category></item><item><title><![CDATA[自增、UUID、雪花算法ID对比]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/125972241</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/125972241</guid><author>polarrwl</author><pubDate>Mon, 25 Jul 2022 12:00:03 +0800</pubDate><description><![CDATA[ID算法]]></description><category></category></item><item><title><![CDATA[Seata+Nacos分布式事务例子(AT和TCC)]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/125972197</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/125972197</guid><author>polarrwl</author><pubDate>Mon, 25 Jul 2022 11:57:50 +0800</pubDate><description><![CDATA[分布式事务]]></description><category></category></item><item><title><![CDATA[Linux 下命令行 JVM 内存信息采集]]></title><link>https://blog.youkuaiyun.com/polarrwl/article/details/125972175</link><guid>https://blog.youkuaiyun.com/polarrwl/article/details/125972175</guid><author>polarrwl</author><pubDate>Mon, 25 Jul 2022 11:55:59 +0800</pubDate><description><![CDATA[Linux 下命令行 JVM 内存信息采集]]></description><category></category></item></channel></rss>