<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[BQXGZ的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/BQXGZ</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; BQXGZ]]></copyright><item><title><![CDATA[EC2服务器修改系统文件导致无法连接服务器，无法ssh,服务器奔溃]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/131182452</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/131182452</guid><author>BQXGZ</author><pubDate>Tue, 13 Jun 2023 10:38:51 +0800</pubDate><description><![CDATA[ec2服务器修改系统文件后导致服务器崩溃，无法ssh的问题]]></description><category></category></item><item><title><![CDATA[python decimal格式转rgb格式，rgb格式转decimal格式]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/127533840</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/127533840</guid><author>BQXGZ</author><pubDate>Wed, 26 Oct 2022 15:47:51 +0800</pubDate><description><![CDATA[python处理颜色格式]]></description><category></category></item><item><title><![CDATA[java 两个字符串(str)比较是否相等]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122545401</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122545401</guid><author>BQXGZ</author><pubDate>Mon, 17 Jan 2022 18:26:10 +0800</pubDate><description><![CDATA[java 两个字符串(str)比较是否相等]]></description><category></category></item><item><title><![CDATA[sql(Mysql)查询出时间数据在显示时加上时区]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122539695</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122539695</guid><author>BQXGZ</author><pubDate>Mon, 17 Jan 2022 16:12:01 +0800</pubDate><description><![CDATA[sql(Mysql)查询出时间数据在显示时加上时区]]></description><category></category></item><item><title><![CDATA[java date类型数据比较大小]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122538578</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122538578</guid><author>BQXGZ</author><pubDate>Mon, 17 Jan 2022 14:05:37 +0800</pubDate><description><![CDATA[Java date类型数据比较大小]]></description><category></category></item><item><title><![CDATA[java date转换时区(timeZone)]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122368864</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122368864</guid><author>BQXGZ</author><pubDate>Fri, 07 Jan 2022 17:26:23 +0800</pubDate><description><![CDATA[java date转换时区(timeZone)]]></description><category></category></item><item><title><![CDATA[word从当前页面设置页码]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122343594</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122343594</guid><author>BQXGZ</author><pubDate>Thu, 06 Jan 2022 15:20:17 +0800</pubDate><description><![CDATA[word从当前页面设置页码]]></description><category></category></item><item><title><![CDATA[python 时间字符串转换为时间类型数据，并获取时间的年，月，日，时，分，秒]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122342680</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122342680</guid><author>BQXGZ</author><pubDate>Thu, 06 Jan 2022 14:34:43 +0800</pubDate><description><![CDATA[python 时间字符串转换为时间类型数据，并获取时间的年，月，日，时，分，秒]]></description><category></category></item><item><title><![CDATA[java计算两个时间的时间差(天/小时/分)]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122324754</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122324754</guid><author>BQXGZ</author><pubDate>Wed, 05 Jan 2022 15:39:50 +0800</pubDate><description><![CDATA[一. 用SimpleDateFormat和getTime()计算时间差:
1.1 初始数据:
    SimpleDateFormat simpleFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
    Date timeDate1 = simpleFormat.parse("2021-01-05 12:18:16");  
    Date timeDate2 = simpleFormat.parse("2021-01-05 13:05:27")]]></description><category></category></item><item><title><![CDATA[Mysql对时间进行加减]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122307237</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122307237</guid><author>BQXGZ</author><pubDate>Tue, 04 Jan 2022 17:14:08 +0800</pubDate><description><![CDATA[一. adddate()
adddate(now(), interval 7 day);

加7天
adddate(now(), interval 7 hour);

加7小时
adddate(now(), interval 7 minute); 

加7分钟
adddate(now(), interval 7 second); 

加7秒
adddate(now(), interval 7 microsecond);

加7毫秒
adddate(now(), interval 7 week);

加7周
]]></description><category></category></item><item><title><![CDATA[spring boot无法显示(本地)图片(弹出登录窗口)]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122243164</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122243164</guid><author>BQXGZ</author><pubDate>Fri, 31 Dec 2021 09:17:26 +0800</pubDate><description><![CDATA[一.问题描述：
在templates下得html配置图片后，路径什么的没问题，但是在浏览器中打开页面后出现登录弹窗，点击图片后图标加载失败。
二. 确定问题:
把本地图片的url改为网图的url，我这里提供一个百度的网图，
src="https://img0.baidu.com/it/u=1578762854,2915076460&amp;fm=26&amp;fmt=auto

发现网图能展示，本地图片却展示不了。如果网图也展示不了可能拦截器拦截了。
三. 解决问题:
在src/main/resources]]></description><category></category></item><item><title><![CDATA[java.math.BigDecimal cannot be cast to java.lang.Float]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/122187180</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/122187180</guid><author>BQXGZ</author><pubDate>Tue, 28 Dec 2021 10:46:25 +0800</pubDate><description><![CDATA[情况:
从数据库中取出round(avg(), 1)的值后,操作数据出现异常:java.math.BigDecimal cannot be cast to java.lang.Float.
原因分析:
取出来的round(avg(), 1)值为Object类型，不能直接操作，需要转换下:
解决办法:
Object datas = dailyDataTempMap.get("heartRate");
Float data = Float.parseFloat(datas.toString());

把data]]></description><category></category></item><item><title><![CDATA[Eclipse Spring mvc项目新增gson包打包成war文件放到tomcat下项目启动失败的一种可能]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/119926504</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/119926504</guid><author>BQXGZ</author><pubDate>Thu, 26 Aug 2021 10:54:38 +0800</pubDate><description><![CDATA[我在配置项目时遇到过这个问题，pom.xml文件里已经配置了gson![在这里插入图片描述](https://img-blog.csdnimg.cn/abcb76bab52c46ac8d025bcab0b1d1f9.png而且在"Maven Dependencies"库中已经显示gson包![在这里插入图片描述](https://img-blog.csdnimg.cn/9e6e3d7c6da64c1da34b91887b9b09a9.png![在这里插入图片描述](https://img-blog.csdn]]></description><category></category></item><item><title><![CDATA[Excel筛选出符合自己条件的数据]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/119102952</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/119102952</guid><author>BQXGZ</author><pubDate>Mon, 26 Jul 2021 09:55:47 +0800</pubDate><description><![CDATA[Excel筛选出符合自己条件的数据
一: 打开文件，点击"数据"。点击筛选:

二: 点击小箭头:

三: 在输入框中输入要筛选的数据, 也可以把不符合条件的项前面的勾勾掉。然后点击"确定"，然后保存或另存为，筛选成功!


...]]></description><category></category></item><item><title><![CDATA[Docker进入容器内部]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/117985522</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/117985522</guid><author>BQXGZ</author><pubDate>Thu, 17 Jun 2021 10:59:51 +0800</pubDate><description><![CDATA[Linux下，在docker1.3.X版本之后进入容器内可以使用以下命令:

sudo docker exec -it 87ab79ada815(容器ID) /bin/bash



]]></description><category></category></item><item><title><![CDATA[JDK下载与安装]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/116782942</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/116782942</guid><author>BQXGZ</author><pubDate>Fri, 14 May 2021 11:28:34 +0800</pubDate><description><![CDATA[一、下载:
点击官网这里,找到对应的版本，点击:
下载合适的版本:

二、安装
找到下载的文件，双击进行安装:
记住jdk安装的路径, 以便接下来配置环境变量。等安装好后，开始配置环境变量，在桌面右键点击“计算机”(windows 10 是“此电脑”)-&gt; “属性”-&gt; “高级系统设置”:
点击环境变量:
点击"新建":
变量名输入: JAVA_HOME
变量值输入刚才jdk的安装路径，我的安装在:“C:\Program Files\Java\jdk1.8.0_291”(以自己的安装路径为准)
]]></description><category></category></item><item><title><![CDATA[Eclipse IDE for Java:下载安装]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/116780107</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/116780107</guid><author>BQXGZ</author><pubDate>Fri, 14 May 2021 10:00:09 +0800</pubDate><description><![CDATA[一、下载及安装:
首先，访问官网这里根据电脑操作系统下载压缩包
如果想下载以前的版本，只需下拉，找到"MODE DOWNLOADS"模块，点击对应版本即可:
二、安装：
下载完，解压，找到"eclipse",可以在桌面创建快捷方式，运行:
三、汉化：
点击官网这里,复制链接:

点击"Help"下的"Install new software...", 把复制的链接粘贴到"Work with"

等待加载完毕，选择:
进行安装，等点击了"finish"后，回到主页面，看到右小角显示安装进度，等安装完成后会提示]]></description><category></category></item><item><title><![CDATA[dictionary update sequence element #0 has length 1； 2 is required]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/115731271</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/115731271</guid><author>BQXGZ</author><pubDate>Thu, 15 Apr 2021 16:58:36 +0800</pubDate><description><![CDATA[python字符串类型转字典类型
a = “{‘b’:1, ‘c’: 2}”
直接使用dict(a)会报错，但是用eval(a)可能会转换不成功，当转换不成功时可以试试用json转，方法是json.loads(a).就可以转换为dict类型了。

]]></description><category></category></item><item><title><![CDATA[MQTT X: A JavaScript error occurred in the main process]]></title><link>https://blog.youkuaiyun.com/BQXGZ/article/details/115723889</link><guid>https://blog.youkuaiyun.com/BQXGZ/article/details/115723889</guid><author>BQXGZ</author><pubDate>Thu, 15 Apr 2021 14:30:19 +0800</pubDate><description><![CDATA[A JavaScript error occurred in the main process
当MQTT X报出这样的错误时:

只需要找到红框内的路径，把"db.json"文件删除再打开MQTT X就可以正常打开了。


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