<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Y175123213的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Y175123213</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Y175123213]]></copyright><item><title><![CDATA[使用hutool工具类HttpUtil请求外部接口传输文件]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/133883716</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/133883716</guid><author>Y175123213</author><pubDate>Tue, 17 Oct 2023 15:10:51 +0800</pubDate><description><![CDATA[外部服务器请求系统文件接口，系统接口返回文件流，并下载到本地。使用HttpUtil调用外部接口，实现文件下载到本地。]]></description><category></category></item><item><title><![CDATA[postgres使用聚合函数json_agg()实现行专列]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/132322588</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/132322588</guid><author>Y175123213</author><pubDate>Wed, 16 Aug 2023 17:17:25 +0800</pubDate><description><![CDATA[postgres使用聚合函数json_agg()实现行专列]]></description><category></category></item><item><title><![CDATA[Linux系统忘记MySql密码完成修改root密码]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/129661375</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/129661375</guid><author>Y175123213</author><pubDate>Mon, 20 Mar 2023 16:27:37 +0800</pubDate><description><![CDATA[Linux系统忘记MySql密码完成修改root密码]]></description><category></category></item><item><title><![CDATA[使用hutool工具类生成token]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/128144874</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/128144874</guid><author>Y175123213</author><pubDate>Fri, 02 Dec 2022 11:31:40 +0800</pubDate><description><![CDATA[使用hutool工具类生成token]]></description><category></category></item><item><title><![CDATA[使用Mapper.xml接收BLOB类型数据实现文件下载]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/127985926</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/127985926</guid><author>Y175123213</author><pubDate>Tue, 22 Nov 2022 17:20:33 +0800</pubDate><description><![CDATA[使用Mapper.xml接收BLOB类型数据实现文件下载]]></description><category></category></item><item><title><![CDATA[MySQL Packet for query is too large 问题及解决方法]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/120949055</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/120949055</guid><author>Y175123213</author><pubDate>Mon, 25 Oct 2021 11:44:24 +0800</pubDate><description><![CDATA[1、问题描述：


Caused by: com.mysql.jdbc.PacketTooBigException: Packet for query is too large (45341207&gt;4194304). You can change this value on the server  
by setting the max_allowed_packet' variable

2、报错原因：

MySQL根据配置文件会限制Server接受的数据包大小。有时候插入、更新或查询时数据包的大小，]]></description><category></category></item><item><title><![CDATA[MySql数据库备份与还原]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/120641742</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/120641742</guid><author>Y175123213</author><pubDate>Thu, 07 Oct 2021 21:26:07 +0800</pubDate><description><![CDATA[命令行：

    备份：

语法：mysqldump -u用户名 -p密码 数据库名称 &gt; 保存的路径



    例如：mysqldump -uroot -proot db1 &gt; d://a.sql

    还原：

        1、登录数据库：mysql -uroot -proot



      ...]]></description><category></category></item><item><title><![CDATA[window10添加编辑组策略]]></title><link>https://blog.youkuaiyun.com/Y175123213/article/details/120489530</link><guid>https://blog.youkuaiyun.com/Y175123213/article/details/120489530</guid><author>Y175123213</author><pubDate>Sun, 26 Sep 2021 15:25:07 +0800</pubDate><description><![CDATA[1、找个磁盘，新建一个空白.txt文件，把下面内容粘贴进去，将后缀名改为.bat，双击运行。

@echo offpushd "%~dp0"dir /b C:\Windows\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientExtensions-Package~3*.mum &gt;List.txtdir /b C:\Windows\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientTo]]></description><category></category></item></channel></rss>