<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[SilverLong专栏]]></title><description><![CDATA[程序员的命运]]></description><link>https://blog.youkuaiyun.com/Jason009</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Jason009]]></copyright><item><title><![CDATA[网关的技术选型]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/130739515</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/130739515</guid><author>Jason009</author><pubDate>Thu, 18 May 2023 09:19:13 +0800</pubDate><description><![CDATA[基于不同的业务场景，选择不同的API网关组件，应对不同的系统流量和并发数。不同的业务场景，在技术选型上也是及其重要的一环。]]></description><category></category></item><item><title><![CDATA[掌握了这个 Java诊断 神器，我成了公司 疑难杂症 “砖家“！]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/128369098</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/128369098</guid><author>Jason009</author><pubDate>Mon, 19 Dec 2022 10:02:13 +0800</pubDate><description><![CDATA[Arthas 是Alibaba开源的Java诊断工具，动态跟踪Java代码；实时监控JVM状态，可以在不中断程序执行的情况下轻松完成JVM相关问题排查工作。支持JDK 6+，支持Linux/Mac/Windows。这个工具真的很好用，而且入门超简单，十分推荐。]]></description><category></category></item><item><title><![CDATA[瞧瞧别人家的API接口，那叫一个优雅]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/128369072</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/128369072</guid><author>Jason009</author><pubDate>Mon, 19 Dec 2022 10:01:09 +0800</pubDate><description><![CDATA[在实际工作中，我们需要经常跟第三方平台打交道，可能会对接第三方平台API接口，或者提供API接口给第三方平台调用。那么问题来了，如果设计一个优雅的API接口，能够满足：安全性、可重复调用、稳定性、好定位问题等多方面需求？今天跟大家一起聊聊设计API接口时，需要注意的一些地方，希望对你会有所帮助。为了防止API接口中的数据被篡改，很多时候我们需要对API接口做。接口请求方将 +  + 拼接成一个字符串，然后通过等hash算法，生成一个前面sign。然后在请求参数或者请求头中，增加sign参数，传递给API接口]]></description><category></category></item><item><title><![CDATA[继电器BS-RL0404A]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/127916384</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/127916384</guid><author>Jason009</author><pubDate>Fri, 18 Nov 2022 09:58:03 +0800</pubDate><description><![CDATA[适用于各类电气设备使用的多功能控制器，集节能、控制、Wifi传输功能于一体，可以灵活实现远程控制管理功能，并通过Wifi方式将数据传输至服务器或管理员手机。本设备有4路数字IO采集输入通道，足以满足大部分机房、教室等场景的开关需求；设备有4路继电器输出，可控制电气设备的电源输入，也可联动其他设备。操作简便，运行稳定、可靠，符合室内环境的规范要求。同一型号产品可能有多个版本，不同版本的产品会存在差异（包括功能参数、LOGO设计、外观细节、产品资料等），请以实物为准。]]></description><category></category></item><item><title><![CDATA[水电综合预警管理系统]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/127916164</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/127916164</guid><author>Jason009</author><pubDate>Fri, 18 Nov 2022 09:49:21 +0800</pubDate><description><![CDATA[水电综合预警管理平台能通过物联网技术对电气引发火灾的主要因素（导线温度、电流、电压和漏电流）进行不间断的数据跟踪与统计分析，实时发现电气线路和用电设备存在的安全隐患（如：短路、过载、过压、欠压及漏电等），有效防止电气火灾的发生。同时系统能通过水位传感器实时监控集水坑水量，避免造成集水过剩导致的资源浪费现象以及延伸危害现象出现。]]></description><category></category></item><item><title><![CDATA[11.17复盘，虽然净值继续新高，但感觉状态不太行]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/127915289</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/127915289</guid><author>Jason009</author><pubDate>Fri, 18 Nov 2022 08:54:38 +0800</pubDate><description><![CDATA[然后讲一下现在医药的情况，核心中的核心是以岭药业，可以说以岭药业倒了，医药线的炒作就宣告结束，这点和众生药业那轮不一样，众生即使倒了，医药也不会倒，具体的逻辑写在隔壁星球了。写了很久的药房和维生素C今天终于是碰板了，第一医药，首板之前挖掘，浙江震元，也是前几天挖掘的，至于还能挖啥，好像真没思路了……b.半导体维持观点不变，继续看，医药如果弱了，半导体很有可能接棒，除了巴菲特和机构喊的周期，传闻还有政策补贴，重点看模拟芯片，然后光刻胶这块今天大涨是受传闻影响，看明天的持续性，首选应该还是模拟这块。]]></description><category></category></item><item><title><![CDATA[Spring Boot 如何快速过滤出一次请求的所有日志？]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/127915220</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/127915220</guid><author>Jason009</author><pubDate>Fri, 18 Nov 2022 08:46:39 +0800</pubDate><description><![CDATA[本文讲述了如何使用MDC工具来快速过滤一次请求的所有日志，并通过装饰器模式使得MDC工具在异步线程里也能生效。有了MDC，再通过AOP技术对所有的切面植入requestId，就可以将整个系统的任意流程的日志过滤出来。使用MDC工具，在开发自测阶段，可以极大地节省定位问题的时间，提升开发效率；在运维维护阶段，可以快速地收集相关日志信息，加快分析速度。]]></description><category></category></item><item><title><![CDATA[【干货】如何防止接口重复提交？（下）]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/127896906</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/127896906</guid><author>Jason009</author><pubDate>Thu, 17 Nov 2022 08:36:53 +0800</pubDate><description><![CDATA[在上一篇文章中，我们详细的介绍了随着下单流量逐渐上升，为了降低数据库的访问压力，通过请求唯一ID+redis分布式锁来防止接口重复提交，流程图如下！每次提交的时候，需要先调用后端服务获取请求唯一ID，然后才能提交。对于这样的流程，不少的同学可能会感觉到非常鸡肋，尤其是单元测试，需要每次先获取值，然后才能提交！能不能不用这么麻烦，直接服务端通过一些规则组合，生成本次请求唯一ID呢？答案是可以的！今天我们就一起来看看，如何通过服务端来完成请求唯一 ID 的生成？]]></description><category></category></item><item><title><![CDATA[【干货】如何防止接口重复提交？（中）]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/127896903</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/127896903</guid><author>Jason009</author><pubDate>Thu, 17 Nov 2022 08:35:55 +0800</pubDate><description><![CDATA[在上一篇文章中，我们详细的介绍了对于下单流量不算高的系统，可以通过请求唯一ID+数据表增加唯一索引约束这种方案来实现防止接口重复提交！随着业务的快速增长，每一秒的下单请求次数，可能从几十上升到几百甚至几千。面对这种下单流量越来越高的场景，此时数据库的访问压力会急剧上升，上面这套方案全靠数据库来解决，会特别吃力！对于这样的场景，我们可以选择引入缓存中间件来解决，可选的组件有 redis、memcache 等。下面，我们以引入redis缓存数据库服务器，向大家介绍具体的解决方案！]]></description><category></category></item><item><title><![CDATA[【干货】如何防止接口重复提交？（上）]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/127896883</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/127896883</guid><author>Jason009</author><pubDate>Thu, 17 Nov 2022 08:34:23 +0800</pubDate><description><![CDATA[对于投入运营的软件系统，最近小编在巡检项目数据库的时候，发现某些表存在不少的重复数据，对于这样的脏数据，初步分析大致的来源有以下可能：1.由于用户误操作，多次点击表单提交按钮2.由于网速等原因造成页面卡顿，用户重复刷新提交页面3.黑客或恶意用户使用 postman 等网络工具，重复恶意提交表单这些情况都可能会导致表单重复提交，造成数据重复，比如订单表，重复提交订单数据所造成的问题，可能不仅仅是数据上的混乱，也会造成业务混乱。那么问题来了，我们该如何防止用户重复提交数据呢？方案实践如下！]]></description><category></category></item><item><title><![CDATA[THE CURE FOR THE COMMON THEME]]></title><link>https://blog.youkuaiyun.com/Jason009/article/details/23127771</link><guid>https://blog.youkuaiyun.com/Jason009/article/details/23127771</guid><author>Jason009</author><pubDate>Mon, 07 Apr 2014 20:48:57 +0800</pubDate><description><![CDATA["If you're looking for 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