<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[qq_30976013的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/qq_30976013</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; qq_30976013]]></copyright><item><title><![CDATA[vue前端学习笔记]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/132587751</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/132587751</guid><author>qq_30976013</author><pubDate>Mon, 22 Apr 2024 16:03:44 +0800</pubDate><description><![CDATA[参考项目：
https://lin-xin.gitee.io/open/gitee代码库：
https://github.com/lin-xin/vue-manage-system登入地址：
https://lin-xin.gitee.io/example/work/#/login登入后端首页
https://lin-xin.gitee.io/example/work/#/dashboard]]></description><category></category></item><item><title><![CDATA[在Linux环境下mysql的root密码忘记解决方法]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/135268303</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/135268303</guid><author>qq_30976013</author><pubDate>Thu, 28 Dec 2023 14:34:28 +0800</pubDate><description><![CDATA[MySQL密码的恢复。]]></description><category></category></item><item><title><![CDATA[Oracle分析函数，窗口函数]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/134034026</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/134034026</guid><author>qq_30976013</author><pubDate>Wed, 25 Oct 2023 17:43:38 +0800</pubDate><description><![CDATA[分析函数是Oracle专门用于解决复杂报表统计需求的功能强大的函数。]]></description><category></category></item><item><title><![CDATA[ora-12547问题排查]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/132837671</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/132837671</guid><author>qq_30976013</author><pubDate>Tue, 12 Sep 2023 18:19:24 +0800</pubDate><description><![CDATA[Oracle数据监听问题]]></description><category></category></item><item><title><![CDATA[SpringBoot消息转换器，Jackson序列化实体过程，重写小小的get()方法，大大的用途]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/132319463</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/132319463</guid><author>qq_30976013</author><pubDate>Wed, 16 Aug 2023 15:13:27 +0800</pubDate><description><![CDATA[Jackson序列化实体过程，重写小小的get()方法]]></description><category></category></item><item><title><![CDATA[2105年408真题-数据结构：先序序列a,b,c,d的不同二叉树个数]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/131534978</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/131534978</guid><author>qq_30976013</author><pubDate>Tue, 04 Jul 2023 15:19:42 +0800</pubDate><description><![CDATA[因为这个小于 0 的前缀和必然是 -1，且 -1 比 +1 多一个，取反后，-1 比 +1 少一个，则 +1 变为 n + 1 个，且 -1 变为 n - 1 个。进一步推广，对于 n 元素的每种非法出栈序列，都会对应一个含有 n + 1 个 +1 以及 n - 1个 -1 的序列。如果将 第一个 前缀和小于 0 的前缀，即前三项元素都进行取反，就会得到：-1 +1 +1 +1 -1 +1。我们将进栈表示为 +1，出栈表示为 -1，则 1 3 2 的出栈序列可以表示为：+1 -1 +1 +1 -1 -1。]]></description><category></category></item><item><title><![CDATA[RPC简介(远程过程调用协议)]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/129859280</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/129859280</guid><author>qq_30976013</author><pubDate>Thu, 30 Mar 2023 15:53:06 +0800</pubDate><description><![CDATA[HTTP：如果是HTTP 1.1 报文中很多内容都是无用的。如果是HTTP2.0以后和RPC相差不大，比RPC少的可能就是一些服务治理等功能。RPC：自定义具体实现可以减少很多无用的报文内容，使得报文体积更小。HTTP 主要是通过JSON，序列化和反序列效率更低。RPC：可以基于TCP协议，也可以基于HTTP协议。HTTP：一般都需要借助第三方工具。RPC：绝大多数RPC框架都带有负载均衡测量。RPC ：一般RPC框架都带有注册中心。HTTP：每次连接都是3次握手。RPC：长连接支持。HTTP：都是直连。]]></description><category></category></item><item><title><![CDATA[oracle中时间截取，构造单位时间取整，时间分布补齐]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/129088302</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/129088302</guid><author>qq_30976013</author><pubDate>Fri, 17 Feb 2023 16:20:48 +0800</pubDate><description><![CDATA[oracle 时间截取  时间分布  ]]></description><category></category></item><item><title><![CDATA[mybatis include动态表单测试]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/128331410</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/128331410</guid><author>qq_30976013</author><pubDate>Thu, 15 Dec 2022 16:38:27 +0800</pubDate><description><![CDATA[myBatis动态列表]]></description><category></category></item><item><title><![CDATA[PMP笔记记录]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/125533903</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/125533903</guid><author>qq_30976013</author><pubDate>Thu, 30 Jun 2022 09:24:46 +0800</pubDate><description><![CDATA[PMP笔记]]></description><category></category></item><item><title><![CDATA[mybatisplus常见BindingException: Invalid bound statement (not found):]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/125431077</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/125431077</guid><author>qq_30976013</author><pubDate>Thu, 23 Jun 2022 17:16:44 +0800</pubDate><description><![CDATA[mybatisplus]]></description><category></category></item><item><title><![CDATA[Spring之RequestBodyAdvice和ResponseBodyAdvice使用场景和原理]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/125081196</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/125081196</guid><author>qq_30976013</author><pubDate>Wed, 01 Jun 2022 12:08:47 +0800</pubDate><description><![CDATA[RequestBodyAdvice]]></description><category></category></item><item><title><![CDATA[SVN分支管理]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/124960064</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/124960064</guid><author>qq_30976013</author><pubDate>Wed, 25 May 2022 14:09:10 +0800</pubDate><description><![CDATA[已有分支： trunk b1

用TortoiseSVN Repo-browser，代码库先copy to ，创建分支 b2

![](https://img-blog.csdnimg.cn/6db0d713d71246b48a48bc140fe17373.png

此时看到版本库有 主干trunk 分支 b1 b2

检出到本地b2


本地b2分支修改内容，增加文件003，提交到版本库 分支b2

本地分支合并


merge概念易混点
在From中选择trunk的路径，在to中选择branches路径]]></description><category></category></item><item><title><![CDATA[windows常用命令行工具]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/124796786</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/124796786</guid><author>qq_30976013</author><pubDate>Mon, 16 May 2022 12:25:59 +0800</pubDate><description><![CDATA[1.查看/解除 端口占用情况
## 1.查看所有进程，| 管道过滤8102端口
netstat -ano|findstr 8102

 TCP    127.0.0.1:8101         127.0.0.1:8102         ESTABLISHED     7396
 TCP    127.0.0.1:8102         127.0.0.1:8101         ESTABLISHED     7396

## 2.继续查看进程号，任务详情
tasklist|findstr 739]]></description><category></category></item><item><title><![CDATA[mybatis-plus的使用总结]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/124483732</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/124483732</guid><author>qq_30976013</author><pubDate>Thu, 05 May 2022 18:00:54 +0800</pubDate><description><![CDATA[mybatis-plus的使用
（暂定占个坑位，近期补充）
PageHelper使用注意事项
1.PageHelper分页只会作用于第一次查询，对第二次及以后的查询无效

]]></description><category></category></item><item><title><![CDATA[oracle查询两个时间段是否有交集，解决预约时间碰撞问题]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/124456554</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/124456554</guid><author>qq_30976013</author><pubDate>Wed, 27 Apr 2022 19:21:44 +0800</pubDate><description><![CDATA[抛出问题
有一设备资源，某些时间段已经被预约，现在创建新的预约单，需要判断本次预约的时间是否有碰撞冲突？
1.准备数据
create table TABLE_EQ_APPOINTMENT
(
  eq_id                VARCHAR2(30),
  appointmentStartTime DATE,
  appointmentEndTime   DATE
)
;
-- Add comments to the columns 
comment on column TABLE_EQ_APP]]></description><category></category></item><item><title><![CDATA[java灵活配置处理excel导入导出]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/124400815</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/124400815</guid><author>qq_30976013</author><pubDate>Mon, 25 Apr 2022 13:34:42 +0800</pubDate><description><![CDATA[设备导出
@GetMapping(value = "/system/exportEquipment", name = "导出excel")
public void exportEquipment(@RequestParam(value = "params", required = false) String params, HttpServletResponse response) throws UnsupportedEncodingException {
    Gson gson = new Gson(]]></description><category></category></item><item><title><![CDATA[考研高等数学知识点整理]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/123859685</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/123859685</guid><author>qq_30976013</author><pubDate>Wed, 30 Mar 2022 23:03:08 +0800</pubDate><description><![CDATA[—转于知乎作者：不知疲倦的游荡
https://zhuanlan.zhihu.com/p/343972509

]]></description><category></category></item><item><title><![CDATA[ORACLE查询当前数据的上一行，下一行]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/123116814</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/123116814</guid><author>qq_30976013</author><pubDate>Thu, 24 Feb 2022 17:33:36 +0800</pubDate><description><![CDATA[oracle偏移量分析函数]]></description><category></category></item><item><title><![CDATA[Oracle start with connect by prior 递归查询]]></title><link>https://blog.youkuaiyun.com/qq_30976013/article/details/123108477</link><guid>https://blog.youkuaiyun.com/qq_30976013/article/details/123108477</guid><author>qq_30976013</author><pubDate>Thu, 24 Feb 2022 12:00:27 +0800</pubDate><description><![CDATA[准备数据:组织机构表
create table TABLE_ORG
(
  id     NUMBER(10) not null,
  name   VARCHAR2(64),
  code   VARCHAR2(32),
  parent VARCHAR2(128),
  status CHAR(1)
);
-- Add comments to the columns 
comment on column TABLE_ORG.id
  is '主键';
comment on column TABLE_OR]]></description><category></category></item></channel></rss>