<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Jjavaer的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Jjavaer</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Jjavaer]]></copyright><item><title><![CDATA[智能宠物用品店分类架构设计 (台湾市场)]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/153575845</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/153575845</guid><author>Jjavaer</author><pubDate>Sun, 19 Oct 2025 15:52:47 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[虾皮对标店铺分析指南]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/152164252</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/152164252</guid><author>Jjavaer</author><pubDate>Sat, 27 Sep 2025 12:45:50 +0800</pubDate><description><![CDATA[对标店铺分析适合电商每一个阶段对市场的判断]]></description><category></category></item><item><title><![CDATA[数据库函数全面指南 - 增强版]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/151076089</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/151076089</guid><author>Jjavaer</author><pubDate>Mon, 01 Sep 2025 17:00:22 +0800</pubDate><description><![CDATA[从基础字符串操作到高级分析函数 - 带数据示例的完整参考。– 原始数据表: employees。– 原始数据表: products。– 计算产品的折扣价格和四舍五入。– 使用递归CTE生成数字序列。– 格式化用户全名并提取域名。]]></description><category></category></item><item><title><![CDATA[信息琐碎与行动困境：当“知道”杀死了“做到”*]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/150105256</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/150105256</guid><author>Jjavaer</author><pubDate>Sat, 09 Aug 2025 11:32:43 +0800</pubDate><description><![CDATA[什么都想做，又什么都不想做，时刻告诫自己，别被碎片想法和情绪绑架了]]></description><category></category></item><item><title><![CDATA[DeepSeep+ollama+Anythingllm如何搭建个人知识库，私有数据训练避免上网！！！]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/145688235</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/145688235</guid><author>Jjavaer</author><pubDate>Mon, 17 Feb 2025 20:08:34 +0800</pubDate><description><![CDATA[超全DeepSeek个人知识库搭建记录，小白都能搞定]]></description><category></category></item><item><title><![CDATA[部署DeepSeek到windows本地包含报错解决！！！]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/145453284</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/145453284</guid><author>Jjavaer</author><pubDate>Mon, 17 Feb 2025 13:02:20 +0800</pubDate><description><![CDATA[deepseek本地部署，选择适当的模型大小，默认以c盘剩余空间预留的大小为准。点击复制按钮，复制命令ollama run deepseek-r1:32b。ollama -v 回车，显示：ollama version is 0.5.7 就说明安装成功了。官网网址https://ollama.com/download。重新安装ollama run deepseek-r1:32b。窗口中输入复制的命令并回车耐心等待安装完成。按住win+R，输入cmd，点击确认。安装完成后是没有图标的。修改ollama端口号。]]></description><category></category></item><item><title><![CDATA[什么是bonding技术]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/145092423</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/145092423</guid><author>Jjavaer</author><pubDate>Sun, 12 Jan 2025 13:46:28 +0800</pubDate><description><![CDATA[bonding技术是一种将多块物理网卡绑定到一块虚拟网卡上的技术。通过修改网卡驱动，让多块网卡看起来像一个单独的以太网接口设备，对外只有一个IP地址。它可以实现网卡的带宽扩容、负载均衡以及冗余备份等功能。]]></description><category></category></item><item><title><![CDATA[安装MySQL Server 9.1的过程中，提示应用程序需要安装Visual Studio 2019 x64可再发行组件（Redistributable）]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/144569645</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/144569645</guid><author>Jjavaer</author><pubDate>Wed, 18 Dec 2024 21:18:03 +0800</pubDate><description><![CDATA[安装MySQL Server 9.1的过程中，提示应用程序需要安装Visual Studio 2019 x64可再发行组件（Redistributable）]]></description><category></category></item><item><title><![CDATA[最新的Kali linux ssh启动失败Unit sshd.service could not be found.]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/131073509</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/131073509</guid><author>Jjavaer</author><pubDate>Thu, 08 Jun 2023 16:55:48 +0800</pubDate><description><![CDATA[ssh如果已经是最新的还是不能启动就需要重新安装]]></description><category></category></item><item><title><![CDATA[如何通过Nginx的upstream和keepalive模块实现两个服务器一个虚拟VIP的双机热备]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/130752165</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/130752165</guid><author>Jjavaer</author><pubDate>Thu, 18 May 2023 17:43:53 +0800</pubDate><description><![CDATA[Nginx的upstream和keepalive模块实现双机热备，假设有一个java服务还有一个redis服务]]></description><category></category></item><item><title><![CDATA[DM在总数据量和重复数据量很大的情况下如何删除重复数据（用rowid是真香）]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/127688706</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/127688706</guid><author>Jjavaer</author><pubDate>Fri, 04 Nov 2022 14:55:35 +0800</pubDate><description><![CDATA[Oracle  DM大数据量情况下去除重复数据]]></description><category></category></item><item><title><![CDATA[elasticsearch-head安装后数据浏览没有数据，点击没有反应，报406]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/127404742</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/127404742</guid><author>Jjavaer</author><pubDate>Wed, 19 Oct 2022 11:45:30 +0800</pubDate><description><![CDATA[elasticsearch-head安装后数据浏览没有数据，点击没有反应，报406]]></description><category></category></item><item><title><![CDATA[linux环境下，mysql无法输入中文，输入就为空复制也不行，问题解决]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/127212001</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/127212001</guid><author>Jjavaer</author><pubDate>Sat, 08 Oct 2022 17:03:39 +0800</pubDate><description><![CDATA[linux环境下，mysql无法输入中文，输入就为空，复制也为空]]></description><category></category></item><item><title><![CDATA[you tried to update a table without a WHERE that uses a KEY column]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/126856131</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/126856131</guid><author>Jjavaer</author><pubDate>Wed, 14 Sep 2022 17:11:27 +0800</pubDate><description><![CDATA[you tried to update a table without a WHERE that uses a KEY column]]></description><category></category></item><item><title><![CDATA[update set from where时 “from“ is not valid at this position ,expecting EOF,“；“ (表中两字段运算结果赋值给另一个表的字段）]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/126855132</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/126855132</guid><author>Jjavaer</author><pubDate>Wed, 14 Sep 2022 17:04:23 +0800</pubDate><description><![CDATA[***from处显示显示from is not valid at this***]]></description><category></category></item><item><title><![CDATA[.csv文件迁移至dm，.xlsx（excel）文件迁移至dm（跟着操作就完事儿）]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/126419705</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/126419705</guid><author>Jjavaer</author><pubDate>Fri, 19 Aug 2022 13:49:07 +0800</pubDate><description><![CDATA[使用dm迁移工具，完成.csv文件或.xlsx(excel)文件迁移至达梦]]></description><category></category></item><item><title><![CDATA[LINUX内核总结]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/124629607</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/124629607</guid><author>Jjavaer</author><pubDate>Sat, 07 May 2022 15:45:11 +0800</pubDate><description><![CDATA[linux内核
内核主要负责四种功能;系统内存管理、软件程序管理、硬件设备管理、文件系统管理
系统内存管理
内核可以管理服务器上的可用物理内存，还可以创建和管理虚拟内存。
内核会维护一个内存页面表，表中指明了各页面所在的位置，在物理内存中或者换到了磁盘上。
一些长时间未访问到的内存页面被内核复制（换出，swapping out）到了交换空间区域。访问已换出的内存页面，内核需从物理内存中换出另一个内存页面，再讲交换空间中还如请求的内存页面。
软件程序管理
init 进程启动系统和是哪个所有其他进程。当内核启动]]></description><category></category></item><item><title><![CDATA[通过已知字段怎么查数据库表？（Oracle，达梦通用）三大方法]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/123740214</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/123740214</guid><author>Jjavaer</author><pubDate>Fri, 25 Mar 2022 17:06:54 +0800</pubDate><description><![CDATA[刚拿到数据库还不熟悉？给了字段不知道表？拿去用]]></description><category></category></item><item><title><![CDATA[docker基础命令一学就会（查看镜像、运行、启停）]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/123525085</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/123525085</guid><author>Jjavaer</author><pubDate>Wed, 16 Mar 2022 14:16:00 +0800</pubDate><description><![CDATA[docker上手命令]]></description><category></category></item><item><title><![CDATA[@Mapper与@Repository的区别]]></title><link>https://blog.youkuaiyun.com/Jjavaer/article/details/120910695</link><guid>https://blog.youkuaiyun.com/Jjavaer/article/details/120910695</guid><author>Jjavaer</author><pubDate>Fri, 22 Oct 2021 17:58:57 +0800</pubDate><description><![CDATA[@Mapper与@Repository的相同点
两个注解都是在dao/mapper层使用（用来标记持久层），生成相应代理对象bean注入到spring容器中。
@Mapper与@Repository的不同点
@Mapper是mybatis的注解，可以单独使用，也允许存在在多个mapper文件，它不需要在Spring中配置扫描地址，通过xml里面的namespace里面的接口地址，生成Bean后注入到Service层中。
@Repository是spring提供的注解，能够将该类注册成Bean。被依赖注入，但]]></description><category></category></item></channel></rss>