<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[withoutfear的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/withoutfear</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; withoutfear]]></copyright><item><title><![CDATA[Fastadmin中表格中修改字段值]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/166596287</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/166596287</guid><author>withoutfear</author><pubDate>Thu, 24 Sep 2026 16:47:59 +0800</pubDate><description><![CDATA[【代码】Fastadmin中表格中修改字段值。]]></description><category></category></item><item><title><![CDATA[HTML页面消息蜂鸣提示音调试台]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/165879753</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/165879753</guid><author>withoutfear</author><pubDate>Fri, 18 Sep 2026 14:58:24 +0800</pubDate><description><![CDATA[【代码】HTML页面消息蜂鸣提示音调试台。]]></description><category></category></item><item><title><![CDATA[FastAdmin框架SSE实时消息推送实现教程]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/164997093</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/164997093</guid><author>withoutfear</author><pubDate>Fri, 11 Sep 2026 15:41:52 +0800</pubDate><description><![CDATA[/ EventSource实例（SSE连接的核心对象）// 标记是否处于连接状态// 标记是否为用户手动停止（避免异常重连）本教程基于FastAdmin实现了轻量级的SSE实时推送功能，核心优势在于：无需引入额外组件，基于HTTP协议实现，开发成本低，适用于消息通知、数据监控等单向推送场景。如需双向通信（如聊天功能），可考虑WebSocket技术，而SSE则是单向推送场景的最优选择之一。]]></description><category></category></item><item><title><![CDATA[FastAdmin权限控制参数和一键压缩打包命令]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/164996947</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/164996947</guid><author>withoutfear</author><pubDate>Fri, 11 Sep 2026 15:29:39 +0800</pubDate><description><![CDATA[【代码】FastAdmin权限控制参数。]]></description><category></category></item><item><title><![CDATA[FastAdmin中如何只允许某IP段访问和只允指定IP访问]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/164996341</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/164996341</guid><author>withoutfear</author><pubDate>Fri, 11 Sep 2026 15:24:54 +0800</pubDate><description><![CDATA[【代码】FastAdmin中如何只允许某IP段访问和只允指定IP访问。]]></description><category></category></item><item><title><![CDATA[IntelliJ IDEA卡顿内存分配不足和索引被频繁触发问题解决办法]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/164991925</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/164991925</guid><author>withoutfear</author><pubDate>Fri, 11 Sep 2026 14:32:07 +0800</pubDate><description><![CDATA[找到IDEA安装目录下的文件（Mac在。]]></description><category></category></item><item><title><![CDATA[Fastadmin使用插件xlswriter导出数据]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/164028060</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/164028060</guid><author>withoutfear</author><pubDate>Mon, 24 Aug 2026 17:23:04 +0800</pubDate><description><![CDATA[【代码】Fastadmin使用插件xlswriter导出数据。]]></description><category></category></item><item><title><![CDATA[Fastadmin的selectPage组件跨表获取数据joinSelectPage修改版，获取多表关联查询数据，支持搜索]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/163862770</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/163862770</guid><author>withoutfear</author><pubDate>Tue, 18 Aug 2026 19:48:13 +0800</pubDate><description><![CDATA[【代码】Fastadmin的selectPage组件跨表获取数据joinSelectPage修改版，获取多表关联查询数据，支持搜索。]]></description><category></category></item><item><title><![CDATA[Fastadmin中fieldlist 二维数组某个字段需要上传单图和多图]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/163760453</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/163760453</guid><author>withoutfear</author><pubDate>Fri, 14 Aug 2026 18:02:55 +0800</pubDate><description><![CDATA[对应js中add方法代码。]]></description><category></category></item><item><title><![CDATA[PHP验证是不是真实手机号]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/161686953</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/161686953</guid><author>withoutfear</author><pubDate>Thu, 04 Jun 2026 14:07:15 +0800</pubDate><description><![CDATA[在 FastAdmin 的。目录下创建一个工具类。]]></description><category></category></item><item><title><![CDATA[Fastadmin中获取IP和手机号归属地信息]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/161660215</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/161660215</guid><author>withoutfear</author><pubDate>Wed, 03 Jun 2026 16:31:26 +0800</pubDate><description><![CDATA[【代码】Fastadmin中获取IP和手机号归属地信息。]]></description><category></category></item><item><title><![CDATA[PHP常用函数大全]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/159547589</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/159547589</guid><author>withoutfear</author><pubDate>Fri, 27 Mar 2026 15:41:59 +0800</pubDate><description><![CDATA[星期几全称 (Monday)- 月份全称 (January)- 24小时制 (00-23)- 两位月份 (01-12)- 两位日期 (01-31)- 四位年份 (2024)- 分钟 (00-59)- 秒 (00-59)]]></description><category></category></item><item><title><![CDATA[fastadmin表格多tab选项卡组合筛选]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/159426858</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/159426858</guid><author>withoutfear</author><pubDate>Tue, 24 Mar 2026 14:56:06 +0800</pubDate><description><![CDATA[【代码】fastadmin表格多tab选项卡组合筛选。]]></description><category></category></item><item><title><![CDATA[MySQL ON DUPLICATE KEY UPDATE 优雅解决存在更新/不存在插入难题]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/153975290</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/153975290</guid><author>withoutfear</author><pubDate>Mon, 27 Oct 2025 17:06:41 +0800</pubDate><description><![CDATA[MySQL的ON DUPLICATE KEY UPDATE语句是一种特殊的INSERT扩展，当插入数据与已有主键或唯一索引冲突时，会自动转为UPDATE操作。其基本语法是INSERT后跟UPDATE子句，常用VALUES()引用原插入值。典型应用包括计数器累加、配置项更新和购物车管理等。该语句支持条件更新、子查询验证和批量处理等高级用法。相比REPLACE INTO（先删后插）和INSERT IGNORE（忽略冲突），它能更精准地控制冲突处理逻辑，是MySQL特有的高效数据更新机制。]]></description><category></category></item><item><title><![CDATA[uni-app 开发H5软键盘会顶起底部内容的解决方案]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/152280211</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/152280211</guid><author>withoutfear</author><pubDate>Mon, 29 Sep 2025 19:37:17 +0800</pubDate><description><![CDATA[原理：通过媒体查询min-aspect-ratio 当屏幕的宽高比大于13/20的时候，就会自动隐藏内容。简单有效的解决办法，通过媒体查询可以纯CSS就解决这个问题。]]></description><category></category></item><item><title><![CDATA[Redis缓存击穿七层防御体系：构建坚不可摧的缓存护甲(PHP版实例)]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/148903590</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/148903590</guid><author>withoutfear</author><pubDate>Wed, 25 Jun 2025 17:35:22 +0800</pubDate><description><![CDATA[基础必选：空值缓存 + 互斥锁（90%场景适用）热点场景：布隆过滤器 + 永不过期策略（比如明星婚讯、秒杀商品）系统加固：熔断降级 + 多级缓存（高并发金融系统）极致优化：请求合并（长尾请求优化）]]></description><category></category></item><item><title><![CDATA[Fastadmin固定表头]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/148694228</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/148694228</guid><author>withoutfear</author><pubDate>Mon, 16 Jun 2025 16:15:08 +0800</pubDate><description><![CDATA[public/assets/js/require-table.js文件中在如下位置添加如下代码。在需要固定表头的js中如下位置引用。]]></description><category></category></item><item><title><![CDATA[Fastadmin报错Unknown column ‘xxx.deletetime‘ in ‘where clause]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/148608991</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/148608991</guid><author>withoutfear</author><pubDate>Thu, 12 Jun 2025 14:05:20 +0800</pubDate><description><![CDATA[在开启软删除后，设置了表别名，软删除字段依旧使用原表名。]]></description><category></category></item><item><title><![CDATA[Fastadmin在弹窗层上传文件]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/148158506</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/148158506</guid><author>withoutfear</author><pubDate>Fri, 23 May 2025 10:47:12 +0800</pubDate><description><![CDATA[在弹窗的页面JS方法中引用上传组件。]]></description><category></category></item><item><title><![CDATA[FastAdmin实现SelectPage的联动]]></title><link>https://blog.youkuaiyun.com/withoutfear/article/details/147514774</link><guid>https://blog.youkuaiyun.com/withoutfear/article/details/147514774</guid><author>withoutfear</author><pubDate>Fri, 25 Apr 2025 15:52:28 +0800</pubDate><description><![CDATA[需求如下图，选择城市后，城市的值做为下面几个selectpage参数。在对应的js文件添加下面的代码，下面是已add为例。]]></description><category></category></item></channel></rss>