<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[weixin_39148913的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/weixin_39148913</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; weixin_39148913]]></copyright><item><title><![CDATA[Server check fail, please check server 127.0.0.1 ,port 9848 is available , error ={}]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/132019585</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/132019585</guid><author>weixin_39148913</author><pubDate>Mon, 31 Jul 2023 11:54:08 +0800</pubDate><description><![CDATA[docker部署nacos，端口88848,9848都已打开，升级到2.2.1后，因为原本没有用到discovery，bootstrap里面没有配置discovery，导致一直读取默认配置读取到本地地址，出现这个错误。需要加上discovery配置nacos服务地址。]]></description><category></category></item><item><title><![CDATA[nacos依赖冲突]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/123801677</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/123801677</guid><author>weixin_39148913</author><pubDate>Mon, 28 Mar 2022 17:55:25 +0800</pubDate><description><![CDATA[&lt;dependency&gt;
    &lt;groupId&gt;com.alibaba.boot&lt;/groupId&gt;
    &lt;artifactId&gt;nacos-config-spring-boot-starter&lt;/artifactId&gt;
    &lt;version&gt;0.2.1&lt;/version&gt;
&lt;/dependency&gt;


报警告

SLF4J: Class path contains multiple SLF4J .]]></description><category></category></item><item><title><![CDATA[/dev/null简单入门]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/123287287</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/123287287</guid><author>weixin_39148913</author><pubDate>Fri, 04 Mar 2022 23:16:01 +0800</pubDate><description><![CDATA[2&gt;&amp;1 /dev/null 将标准输入输出全部丢弃（表示2的输出重定向等同于1）
2&gt;filename 把错误信息保存到filename
2&gt;/dev/null &gt;/dev/null 把错误信息丢弃，并别把标准输出也丢弃
cat /dev/null &gt;a.txt 直接把a.txt内容清空
...]]></description><category></category></item><item><title><![CDATA[useGeneratedKeys=true 配合 keyProperty=Id]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/123068890</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/123068890</guid><author>weixin_39148913</author><pubDate>Tue, 22 Feb 2022 15:10:26 +0800</pubDate><description><![CDATA[useGeneratedKeys="true" keyProperty="userId" 目的是将一个对象保存成功后，将插入的这条主键id返回，并保存到对象中，供后续使用
]]></description><category></category></item><item><title><![CDATA[docker启动kafka连接超时]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/122743925</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/122743925</guid><author>weixin_39148913</author><pubDate>Sat, 29 Jan 2022 15:19:08 +0800</pubDate><description><![CDATA[docker run -d --name kafka -p 9092:9092 -e KAFKA_BROKER_ID=0 -e KAFKA_ZOOKEEPER_CONNECT=“改成虚拟机ip地址”:2181 -e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://“改成虚拟机ip地址”:9092 -e KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092 wurstmeister/kafka
...]]></description><category></category></item><item><title><![CDATA[Xshell 连接虚拟机出现 “The remote SSH server rejected X11 forwarding request“]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/122347193</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/122347193</guid><author>weixin_39148913</author><pubDate>Thu, 06 Jan 2022 16:28:22 +0800</pubDate><description><![CDATA[取消这个勾即可
]]></description><category></category></item><item><title><![CDATA[单springboot（非springcloud）配置nacos]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/122329660</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/122329660</guid><author>weixin_39148913</author><pubDate>Wed, 05 Jan 2022 18:57:35 +0800</pubDate><description><![CDATA[记录一下本菜鸟springboot配置nacos的过程。

项目用的是springboot2.5.0，nacos1.1.4，刚开始引用的依赖nacos-config也就是


&lt;dependency&gt;
    &lt;groupId&gt;com.alibaba.boot&lt;/groupId&gt;
    &lt;artifactId&gt;nacos-config-spring-boot-starter&lt;/artifactId&gt;
    &lt;version&gt;0.2.]]></description><category></category></item><item><title><![CDATA[Macbook上VirtualBox设置主机ping通虚拟机]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/122280803</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/122280803</guid><author>weixin_39148913</author><pubDate>Sun, 02 Jan 2022 21:05:12 +0800</pubDate><description><![CDATA[Macbook上VirtualBox设置主机ping通虚拟机_Learning-优快云博客_mac ping virtualbox
]]></description><category></category></item><item><title><![CDATA[MacOS安装VirtualBox后启动虚拟机报错]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/122278790</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/122278790</guid><author>weixin_39148913</author><pubDate>Sun, 02 Jan 2022 18:03:46 +0800</pubDate><description><![CDATA[Kernel driver not installed (rc=-1908)







解决方法：打开系统偏好设置-&gt;安全性与隐私，下方有个允许xxxx的请求，点击后面的允许按钮，重启电脑后解决此问题
]]></description><category></category></item><item><title><![CDATA[Mac macOs Big Sur 版本11.3.1 解决思科AnyConnect开机总是弹框提示安全移动客户端通知问题]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/121638779</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/121638779</guid><author>weixin_39148913</author><pubDate>Tue, 30 Nov 2021 17:51:53 +0800</pubDate><description><![CDATA[因为是直接移到废纸篓的，导致每次开机总是弹框提示安全移动客户端通知（正常应该进入Cisco AnyConnect目录运行卸载程序）



    第一步：打开终端输入：


pkgutil --pkgs|grep com.cisco

会出现几个

com.cisco.pkg.anyconnect.***

这样的东西



第二步：输入


pkgutil --forget com.cisco.pkg.anyconnect.****（有啥删啥）

删完了就行了

...]]></description><category></category></item><item><title><![CDATA[ElasticSearch 7.10.2 不支持指定索引类型]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/120034645</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/120034645</guid><author>weixin_39148913</author><pubDate>Wed, 01 Sep 2021 10:42:36 +0800</pubDate><description><![CDATA[执行结果返回出错：Root mapping definition has unsupported parameters



默认索引类型为_doc ，不支持指定索引类型
]]></description><category></category></item><item><title><![CDATA[切换svn地址]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/120019877</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/120019877</guid><author>weixin_39148913</author><pubDate>Tue, 31 Aug 2021 15:50:52 +0800</pubDate><description><![CDATA[svn switch --relocate http://oldUrl http://newUrl
]]></description><category></category></item><item><title><![CDATA[实体类get set]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/119930273</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/119930273</guid><author>weixin_39148913</author><pubDate>Thu, 26 Aug 2021 14:07:18 +0800</pubDate><description><![CDATA[注解@Data
]]></description><category></category></item><item><title><![CDATA[mybatis报错：Expected one result (or null) to be returned by selectOne(), but found: 28]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/119929078</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/119929078</guid><author>weixin_39148913</author><pubDate>Thu, 26 Aug 2021 12:53:20 +0800</pubDate><description><![CDATA[自动选择selectOne（）方法，由于只能返回一个对象的结果，当返回到多个对象的结果时报错。getUser是一个student类的bean无法接受多个结果，则改用List就可以接受多个结果



将返回类型改为List
]]></description><category></category></item><item><title><![CDATA[一对多查询]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/111869664</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/111869664</guid><author>weixin_39148913</author><pubDate>Mon, 28 Dec 2020 16:38:30 +0800</pubDate><description><![CDATA[MySQL 的 GROUP_CONCAT
]]></description><category></category></item><item><title><![CDATA[MacBook Pro 的 touchbar 音量和亮度调节消失]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/111470133</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/111470133</guid><author>weixin_39148913</author><pubDate>Mon, 21 Dec 2020 11:23:32 +0800</pubDate><description><![CDATA[MacBook Pro 的 touchbar 音量和亮度调节消失

终端执行下面的即可：
`killall ControlStrip`
]]></description><category></category></item><item><title><![CDATA[踩坑③]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/111157448</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/111157448</guid><author>weixin_39148913</author><pubDate>Mon, 14 Dec 2020 11:58:25 +0800</pubDate><description><![CDATA[Mybatis在执行update命令时，报错Cause: java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String；意思是Data和String不匹配，

经过一番搜索发现&lt;if test="creatTime != null and creatTime != ''"&gt;&lt;/if&gt;

出现了creatTime != ''"，这里就相当于date与string..]]></description><category></category></item><item><title><![CDATA[踩坑②]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/110946235</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/110946235</guid><author>weixin_39148913</author><pubDate>Thu, 10 Dec 2020 09:34:11 +0800</pubDate><description><![CDATA[WHERE
   |{time} &gt;= #{start}
   AND |{time} &lt;= date_add(#{end}, interval 1 day)



Localdate类型 数据库查询的日期是 到当天的00：00：00，

所以查询的时候要在结束的日期加一天，即查1号的数据 需要查到2号的零点零分零秒
...]]></description><category></category></item><item><title><![CDATA[踩坑1]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/110137087</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/110137087</guid><author>weixin_39148913</author><pubDate>Wed, 25 Nov 2020 17:23:31 +0800</pubDate><description><![CDATA[拒绝服务攻击是一种滥用资源性的攻击。从代码角度来考虑，对于涉及到需要占用系统资源的外部数据而言，

代码逻辑中应该包含严格校验，防止无限制的输入。另外，谨慎使用线程阻塞的API，防止浪费系统资源或发生系统崩溃。







InputStream inputStream = process.getInputStream();
if (inputStream.available() &gt; MAX_SIZE) {
    throw new BaseException("输入超过大小限制！");...]]></description><category></category></item><item><title><![CDATA[读书笔记①：类对象]]></title><link>https://blog.youkuaiyun.com/weixin_39148913/article/details/109803504</link><guid>https://blog.youkuaiyun.com/weixin_39148913/article/details/109803504</guid><author>weixin_39148913</author><pubDate>Thu, 19 Nov 2020 10:48:08 +0800</pubDate><description><![CDATA[类对象：所有的类，都存在一个类对象，这个类对象提供类本身的信息，如：有几种构造方法、有哪些普通方法、有多少属性...

理解类对象之前，先了解对象之间的区别：

M4A1和AKM都属于arms对象，他们的区别在于，各自有不同的名字、不同的伤害.

然后还有类之间的区别：

arms和Transport都是类，他们区别有不同的方法，不同的属性.

类对象，就是用于描述这种类，都有什么属性，什么方法的.



获取类对象有3种方式：

1. Class.forName

2. arms.class

3. n.]]></description><category></category></item></channel></rss>