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<a href="/2022/11/12/DataLab/" target="_self">
DataLab
</a>
</h1>
<a class="index-excerpt index-excerpt__noimg" href="/2022/11/12/DataLab/" target="_self">
<div>
一、实验目的本实验目的是加强学生对位级运算的理解及熟练使用的能力。 二、报告要求本报告要求学生把实验中实现的所有函数逐一进行分析说明，写出实现的依据，也就是推理过程，可以是一个简单的数学证明，也可以是代码分析，根据实现中你的想法不同而异。 三、函数分析 bitXor函数 函数要求： 函数名 bitNor 参数 int , int 功能实现 ~(x|y) 要求 只能使用 ~ 和
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<time datetime="2022-11-12 20:06" pubdate>
2022-11-12
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<a href="/categories/CSAPP/" class="category-chain-item">CSAPP</a>
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<i class="iconfont icon-tags"></i>
<a href="/tags/X86/">#X86</a>
<a href="/tags/%E6%B1%87%E7%BC%96%E8%AF%AD%E8%A8%80/">#汇编语言</a>
<a href="/tags/C%E8%AF%AD%E8%A8%80/">#C语言</a>
<a href="/tags/CSAPP/">#CSAPP</a>
</div>
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<h1 class="index-header">
<a href="/2022/11/12/BombLab/" target="_self">
BombLab
</a>
</h1>
<a class="index-excerpt index-excerpt__noimg" href="/2022/11/12/BombLab/" target="_self">
<div>
Bomb Lab本学期的系统及程序设计课程有CSAPP配套的实验任务，当然老师的要求是结合网上的资源，能弄懂实验内容即可，Bomb Lab实验是第二个实验任务，我经过一天左右完成了此实验的7个phase，实践时看了大量的网上的解析，因为我们的实验内容在网上的基础上有所修改，因此并没有一个完整的，易懂的博客来解释实验内容，正好老师要求写实验报告，索性我就尝试来写一个完整的Bomb Lab解析，不当
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<time datetime="2022-11-12 19:43" pubdate>
2022-11-12
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<a href="/categories/CSAPP/" class="category-chain-item">CSAPP</a>
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<i class="iconfont icon-tags"></i>
<a href="/tags/X86/">#X86</a>
<a href="/tags/%E6%B1%87%E7%BC%96%E8%AF%AD%E8%A8%80/">#汇编语言</a>
<a href="/tags/C%E8%AF%AD%E8%A8%80/">#C语言</a>
<a href="/tags/CSAPP/">#CSAPP</a>
</div>
</div>
</article>
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<h1 class="index-header">
<a href="/2022/10/22/ElasticSearch/" target="_self">
ElasticSearch
</a>
</h1>
<a class="index-excerpt index-excerpt__noimg" href="/2022/10/22/ElasticSearch/" target="_self">
<div>
ElasticSearchelasticsearch是一款非常强大的开源搜索引擎，可以帮助我们从海量数据中快速找到需要的内容。 elasticsearch结合kibana、Logstash、Beats，即elastic stack（ELK）。被广泛应用在日志数据分析、实时监控等领域。 eleasticsearch是ELK的核心，负责存储、搜索、分析数据。 Lucene是一个Java语言的搜索引擎
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<time datetime="2022-10-22 15:24" pubdate>
2022-10-22
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<a href="/tags/SpringCloud/">#SpringCloud</a>
<a href="/tags/ElasticSearch/">#ElasticSearch</a>
</div>
</div>
</article>
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<h1 class="index-header">
<a href="/2022/10/22/SpringAMQP/" target="_self">
SpringAMQP
</a>
</h1>
<a class="index-excerpt index-excerpt__noimg" href="/2022/10/22/SpringAMQP/" target="_self">
<div>
MQ——MessageQueue消息队列，字面意思来看就是存放消息的队列。也就是事件驱动架构中的Broker。 知名MQ服务： RabbitMQRabbitMQ是基于Erlang语言开发的开源消息通信中间件。 结构和概念 channel：操作MQ的的工具 exchange：路由消息到队列中 queue：缓存消息 vitural host：虚拟主机，是对queue、exchange等资源的逻辑分
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<time datetime="2022-10-22 15:23" pubdate>
2022-10-22
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<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/SpringCloud/">#SpringCloud</a>
<a href="/tags/RabbitMQ/">#RabbitMQ</a>
</div>
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</article>
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<h1 class="index-header">
<a href="/2022/10/22/docker/" target="_self">
docker
</a>
</h1>
<a class="index-excerpt index-excerpt__noimg" href="/2022/10/22/docker/" target="_self">
<div>
Docker架构镜像和容器镜像（image）：Docker将应用程序及其所需的依赖、函数库、环境、配置等文件打包在一起，称为镜像 容器（container）：镜像中的应用程序运行后形成的进程就是容器，只是Docker会给容器做隔离，对外不可见 DockerHubDockerhub是一个docker镜像的托管平台，这样的平台称为Docker Registry。国内类似DockerHubde公开服务平
</div>
</a>
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<time datetime="2022-10-22 15:22" pubdate>
2022-10-22
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<a href="/categories/Docker/" class="category-chain-item">Docker</a>
</span>
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</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/docker/">#docker</a>
</div>
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Gateway
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GateWay网关功能： 身份认证和权限认证 服务路由、负载均衡 请求限流 SpringCloud网关的技术实现： gateway zuul Zuul是基于Servlet的实现。属于阻塞式编程。而SpringCloudGateWay则是基于Spring5中提供的WebFlux，属于响应式编程的实现，具备更好的性能。 搭建网关服务 创建新的module，引入SpringCloudGateWa
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Feign
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FeignRestTemplate方式调用存在的问题 代码可读性差，变成体验不统一 参数复杂URL难以维护 不够优雅 Feign是一个声明式的http客户端。其作用就是帮助我们优雅的实现http请求的发送，解决上面的问题。 定义和使用Feign客户端 引入依赖 在order-service的启动类添加注解@EnableFeignClients开启Feign的功能 编写Feign客户端使用@Fei
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Nacos
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Nacos服务注册到Nacos 在cloud-demo父工程中添加spring-cloud-alibaba的管理依赖 注释掉orderservice和userservice中原有的erureka依赖 添加nacos客户端依赖 Nacos服务分级存储模型服务 集群 实例 服务调用尽可能选择本地集群的服务，跨集群调用延迟较高，本地集群不可访问是，再去访问其他集群。 NacosRule负载均衡策略优
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Eureka
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Eureka服务调用出现的问题 服务消费者该如何获取其服务提供者的地址信息？ 如果有多个服务提供者，消费者该如何选择? 消费者如何得知服务提供者的健康状态？ Eureka的作用 eureka-server：服务端，注册中心 记录服务信息 心跳监控 eureka-client：客户端 Provider：服务提供者 注册自己的信息到EurekaServer 每隔30秒发送一次心跳 Co
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Annotation
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什么是Java AnnotationAnnotation是从JDK5.0开始引入的新技术。 Annotation的作用 不是程序本身，可以对程序作出解释。 可以被其他程序（比如编译器）读取 Annotationd的格式注解是以”@注解名”在代码中存在的，还可以添加一些参数值。例如@SuppressWarning(value=”unchecked”) Annotation在哪里使用可以在
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