<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[cbc的博客]]></title><description><![CDATA[学习交流]]></description><link>https://blog.youkuaiyun.com/Chai_bencheng</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Chai_bencheng]]></copyright><item><title><![CDATA[Deepin25安装mysql8.4.5]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/151108682</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/151108682</guid><author>Chai_bencheng</author><pubDate>Tue, 02 Sep 2025 12:40:28 +0800</pubDate><description><![CDATA[2. 创建mysql用户和用户组。]]></description><category></category></item><item><title><![CDATA[deepin25安装后操作1]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/151106318</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/151106318</guid><author>Chai_bencheng</author><pubDate>Tue, 02 Sep 2025 11:01:11 +0800</pubDate><description><![CDATA[sudo vim /etc/ssh/sshd_config  修改允许root登录。]]></description><category></category></item><item><title><![CDATA[windows系统升级/重做后，修复项目权限，否则git报错]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/149746710</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/149746710</guid><author>Chai_bencheng</author><pubDate>Tue, 29 Jul 2025 14:23:27 +0800</pubDate><description><![CDATA[【代码】windows系统升级后，修复项目权限，否则git报错。]]></description><category></category></item><item><title><![CDATA[设置vscode默认控制台策略报错]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/149218379</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/149218379</guid><author>Chai_bencheng</author><pubDate>Wed, 09 Jul 2025 10:41:15 +0800</pubDate><description><![CDATA[【代码】设置vscode默认控制台策略报错。]]></description><category></category></item><item><title><![CDATA[解决谷歌浏览器无法调用本地摄像头]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/148949179</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/148949179</guid><author>Chai_bencheng</author><pubDate>Fri, 27 Jun 2025 11:21:23 +0800</pubDate><description><![CDATA[设置需要调用摄像头的网址。改成启用，然后重启浏览器。]]></description><category></category></item><item><title><![CDATA[My-netty]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/147025744</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/147025744</guid><author>Chai_bencheng</author><pubDate>Sun, 06 Apr 2025 15:41:12 +0800</pubDate><description><![CDATA[selector相当于一个摄像头，管理多个channel,,,,,channel的举动会被selector发现，然后通知线程干活，让线程一直有事干。]]></description><category></category></item><item><title><![CDATA[linux安装mysql]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/146181029</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/146181029</guid><author>Chai_bencheng</author><pubDate>Tue, 11 Mar 2025 15:50:38 +0800</pubDate><description><![CDATA[创建mysql.service。]]></description><category></category></item><item><title><![CDATA[My-DM安装]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/145511158</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/145511158</guid><author>Chai_bencheng</author><pubDate>Sat, 08 Feb 2025 11:06:20 +0800</pubDate><description><![CDATA[安装前必须创建 dmdba 用户，禁止使用 root 用户安装数据库。创建用户组创建用户初始化用户密码。]]></description><category></category></item><item><title><![CDATA[MY05-firewall防火墙操作]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/145201170</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/145201170</guid><author>Chai_bencheng</author><pubDate>Fri, 17 Jan 2025 10:36:54 +0800</pubDate><description><![CDATA[-permanent：表示这个规则是永久生效的，不是临时生效。添加后不会随防火墙重启而丢失。--zone=public：指明规则应用的区域（通常使用 public 区域）。--add-port=5236/tcp：放行 TCP 协议的 5236 端口。查看当前放行的端口列表。]]></description><category></category></item><item><title><![CDATA[配置Tomcat]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/144534910</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/144534910</guid><author>Chai_bencheng</author><pubDate>Tue, 17 Dec 2024 14:30:17 +0800</pubDate><description><![CDATA[2.etc/systemd/system下创建tomcat.service文件，输入一下内容。安装tomcat8服务。]]></description><category></category></item><item><title><![CDATA[配置JDK]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/144534870</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/144534870</guid><author>Chai_bencheng</author><pubDate>Tue, 17 Dec 2024 14:28:59 +0800</pubDate><description><![CDATA[将jdk安装在opt目录，解压，并配置环境变量。]]></description><category></category></item><item><title><![CDATA[centos下载]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/144366604</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/144366604</guid><author>Chai_bencheng</author><pubDate>Tue, 10 Dec 2024 10:21:24 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[查询一个字段不等于某个值的包括该字段为null的数据]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82115103</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82115103</guid><author>Chai_bencheng</author><pubDate>Mon, 27 Aug 2018 16:36:11 +0800</pubDate><description><![CDATA[uploadcode 是varchar2类型的


select * from T_EXAM_PROCESS t where lsh='2171020309330' and examnum=1 and nvl(to_char(uploadcode),'xx') &amp;lt;&amp;gt; '1'





nvl(column,replace_with)

如果column是空，则用replace...]]></description><category></category></item><item><title><![CDATA[JDBC将base64保存在BLOB字段类型中]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82114616</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82114616</guid><author>Chai_bencheng</author><pubDate>Mon, 27 Aug 2018 16:14:35 +0800</pubDate><description><![CDATA[                 


//先查询出来（for update是重点），然后再插入插入照片
                String sqlzp=&quot;select zp from T_EXAM_PROCESS where id='&quot;+examProcess.getId()+&quot;' for update&quot;;
                if(!examProcess.getZp()...]]></description><category></category></item><item><title><![CDATA[JDBC方式将数据库中Blob类型转成base64图片]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82113942</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82113942</guid><author>Chai_bencheng</author><pubDate>Mon, 27 Aug 2018 15:47:48 +0800</pubDate><description><![CDATA[ sql2 = &quot;select zp from T_EXAM_PROCESS  where id='&quot;+id+&quot;'  and anytime like '&quot;+anytime+&quot;%'&quot;;
                listZp2 = oracleUtil.searchSql2(sql2,newdburl,newdbname,newdbpassword,keyList2);

 


//参数配...]]></description><category></category></item><item><title><![CDATA[将本地图片保存在BLOB字段中]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82113835</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/82113835</guid><author>Chai_bencheng</author><pubDate>Mon, 27 Aug 2018 15:40:52 +0800</pubDate><description><![CDATA[1--实体类用Object接收



2.



@Controller
@RequestMapping(value = &quot;/dev.do&quot;, produces = &quot;application/json;charset=UTF-8&quot;)
public class DevController {
	
	
	@Value(&quot;${photoPath}&quot;)
	private String photoPath;...]]></description><category></category></item><item><title><![CDATA[windows下单机版的redis安装]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/81510850</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/81510850</guid><author>Chai_bencheng</author><pubDate>Wed, 08 Aug 2018 16:47:33 +0800</pubDate><description><![CDATA[1 ---解压：到Redis的文件夹下

2 ---进入redis文件夹输入命令：redis-server redis.windows.conf



3安装redis服务：在解压目录输入命令              redis-server --service-install redis.windows.conf --service-name redis

4 然后启动redis 服务：   ...]]></description><category></category></item><item><title><![CDATA[POI的导入导出Excel(复制粘贴即可使用!)]]></title><link>https://blog.youkuaiyun.com/Chai_bencheng/article/details/81508923</link><guid>https://blog.youkuaiyun.com/Chai_bencheng/article/details/81508923</guid><author>Chai_bencheng</author><pubDate>Wed, 08 Aug 2018 16:02:12 +0800</pubDate><description><![CDATA[控制层：

导出：主要是接收页面的条件，然后根据条件去数据库查需要导出的数据

导入：接收文件，调用服务


    /*
	 * 导出
     * 按照页面的条件导出
	 */
	@RequestMapping(params = &quot;exportExcel&quot;)  
	@ResponseBody
	public void exportExcel(HttpServletRequest request...]]></description><category></category></item></channel></rss>