金三银四已过，总结了阿里面试官常问九大项面试题！
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">金三银四已过，之前面试的<span style="color: black;">亦</span>差不多了，<span style="color: black;">博主</span>在<span style="color: black;">这儿</span>给<span style="color: black;">大众</span>整理了一套阿里面试官最<span style="color: black;">爱好</span>问的问题<span style="color: black;">或</span>出场率较高的面试题，助校招<span style="color: black;">或</span>社招路上的你一臂之力！</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">首要</span><span style="color: black;">咱们</span><span style="color: black;">必须</span>明白一个事实，招聘的一个很关键的<span style="color: black;">原因</span>是在给自己找<span style="color: black;">将来</span>的同事，同级别下要找比自己优秀的人，面试是一个双向<span style="color: black;">选取</span>的过程，<span style="color: black;">亦</span>是一个将心比心去沟通的过程。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">就像<span style="color: black;">咱们</span>有的人感觉自己很牛逼，<span style="color: black;">然则</span>拿不到offer，而其他的人菜的一笔，却<span style="color: black;">能够</span>拿到offer，<span style="color: black;">咱们</span><span style="color: black;">叫作</span>之为玄学offer，遇到这种<span style="color: black;">状况</span><span style="color: black;">大众</span><span style="color: black;">亦</span>不要感觉到有什么不可描述的心情，一切随缘<span style="color: black;">就可</span>！</p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/83a561fb41b4474399446b3f1df28682~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1721328297&x-signature=rgovMAXTALdJY74lcLH%2BgRG3LIs%3D" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">和以前<span style="color: black;">同样</span>，<span style="color: black;">仅有</span>问题<span style="color: black;">无</span>参考答案，<span style="color: black;">必须</span>各位小伙伴下来逐一学习！</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">1、</span>开场白</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">简单的介绍一下自己的工作经历与职责，在校<span style="color: black;">或</span>工作中<span style="color: black;">重点</span>的工作内容，<span style="color: black;">重点</span>负责的内容；（你的信息一清二白的写在简历上，这个<span style="color: black;">重点</span>为了缓解面试者的压力）</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">介绍下自己最满意的，有技术亮点的项目或平台，重点介绍下自己负责那部分的技术细节；（<span style="color: black;">重点</span>考察应聘者对自己做过的事情<span style="color: black;">是不是</span>有清晰的描述，判断做的事情的<span style="color: black;">繁杂</span>度）</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">2、</span>Java多线程<span style="color: black;">关联</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">线程池的原理，<span style="color: black;">为何</span>要创建线程池？创建线程池的方式；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">线程的生命周期，什么时候会<span style="color: black;">显现</span>僵死进程；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">说说线程安全问题，什么实现线程安全，<span style="color: black;">怎样</span>实现线程安全；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">创建线程池有哪几个核心参数？ <span style="color: black;">怎样</span><span style="color: black;">恰当</span>配置线程池的<span style="color: black;">体积</span>？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">volatile、ThreadLocal的<span style="color: black;">运用</span>场景和原理；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">ThreadLocal什么时候会<span style="color: black;">显现</span>OOM的<span style="color: black;">状况</span>？<span style="color: black;">为何</span>？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">synchronized、volatile区别、synchronized锁粒度、模拟死锁场景、原子性与可见性；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">3、</span>JVM<span style="color: black;">关联</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">JVM内存模型，GC机制和原理；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">GC分哪两种，Minor GC 和Full GC有什么区别？什么时候会触发Full GC？分别采用什么算法？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">JVM里的有几种classloader，<span style="color: black;">为何</span>会有多种？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">什么是双亲委派机制？介绍<span style="color: black;">有些</span>运作过程，双亲委派模型的好处；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">什么<span style="color: black;">状况</span>下<span style="color: black;">咱们</span><span style="color: black;">必须</span>破坏双亲委派模型；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">平常</span>的JVM调优<span style="color: black;">办法</span>有<span style="color: black;">那些</span>？<span style="color: black;">能够</span><span style="color: black;">详细</span>到<span style="color: black;">调节</span>哪个参数，调成什么值？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">JVM虚拟机内存划分、类加载器、垃圾收集算法、垃圾收集器、class文件结构是<span style="color: black;">怎样</span>解析的；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">4、</span>Java高级部分</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">红黑树的实现原理和应用场景；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">NIO是什么？适用于何种场景？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Java9比Java8改进了什么；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">HashMap内部的数据结构是什么？底层是怎么实现的？（还可能会延伸考察ConcurrentHashMap与HashMap、HashTable等，考察对技术细节的深入<span style="color: black;">认识</span>程度）；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">说说反射的用途及实现，反射是不是很慢，<span style="color: black;">咱们</span>在项目中是否要避免<span style="color: black;">运用</span>反射；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">说说自定义注解的场景及实现；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">List 和 Map 区别，Arraylist 与 LinkedList 区别，ArrayList 与 Vector 区别；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">5、</span>Spring<span style="color: black;">关联</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Spring AOP的实现原理和场景？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Spring bean的<span style="color: black;">功效</span>域和生命周期；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Spring Boot比Spring做了<span style="color: black;">那些</span>改进？ Spring 5比Spring4做了<span style="color: black;">那些</span>改进；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">怎样</span>自定义一个Spring Boot Starter？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Spring IOC是什么？优点是什么？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">SpringMVC、动态代理、反射、AOP原理、事务隔离级别；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">6、</span>中间件篇</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Dubbo完整的一次调用链路介绍；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Dubbo支持几种负载<span style="color: black;">平衡</span>策略？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Dubbo Provider服务<span style="color: black;">供给</span>者要<span style="color: black;">掌控</span>执行并发请求上限，<span style="color: black;">详细</span>怎么做？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Dubbo<span style="color: black;">起步</span>的时候支持几种配置方式？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">认识</span>几种<span style="color: black;">信息</span>中间件<span style="color: black;">制品</span>？各<span style="color: black;">制品</span>的优缺点介绍；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">信息</span>中间件<span style="color: black;">怎样</span><span style="color: black;">保准</span><span style="color: black;">信息</span>的一致性和<span style="color: black;">怎样</span>进行<span style="color: black;">信息</span>的重试机制？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Spring Cloud熔断机制介绍；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Spring Cloud对比下Dubbo，什么场景下该<span style="color: black;">运用</span>Spring Cloud？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">7、</span>数据库篇</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">锁机制介绍：行锁、表锁、排他锁、共享锁；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">阳光</span>锁的业务场景及实现方式；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">事务介绍，分布式事物的理解，<span style="color: black;">平常</span>的<span style="color: black;">处理</span><span style="color: black;">方法</span>有<span style="color: black;">那些</span>，什么事两<span style="color: black;">周期</span>提交、三<span style="color: black;">周期</span>提交；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">MySQL记录binlog的方式<span style="color: black;">重点</span><span style="color: black;">包含</span>三种模式？每种模式的优缺点是什么？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">MySQL锁，悲观锁、<span style="color: black;">阳光</span>锁、排它锁、共享锁、表级锁、行级锁；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">分布式事务的原理2<span style="color: black;">周期</span>提交，同步\异步\阻塞\非阻塞；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">数据库事务隔离级别，MySQL默认的隔离级别、Spring<span style="color: black;">怎样</span>实现事务、JDBC<span style="color: black;">怎样</span>实现事务、</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">嵌套事务实现、分布式事务实现；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">SQL的<span style="color: black;">全部</span>解析、执行过程原理、SQL行转列；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">8、</span>Redis</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Redis<span style="color: black;">为何</span>这么快？redis采用多线程会有<span style="color: black;">那些</span>问题？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Redis支持哪几种数据结构；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Redis跳跃表的问题；</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Redis单进程单线程的Redis<span style="color: black;">怎样</span>能够高并发?</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Redis<span style="color: black;">怎样</span><span style="color: black;">运用</span>Redis实现分布式锁？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">Redis分布式锁操作的原子性，Redis内部是<span style="color: black;">怎样</span>实现的？</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">9、</span>其他</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">看过<span style="color: black;">那些</span>源代码？<span style="color: black;">而后</span>会<span style="color: black;">按照</span>你说的源码问<span style="color: black;">有些</span>细节的问题？（这里<span style="color: black;">重点</span>考察面试者<span style="color: black;">是不是</span>对技术有钻研的精神，还是只停留在表面，还是背了几道面经，这个<span style="color: black;">针对</span><span style="color: black;">非常多</span>有强迫症的面试官，<span style="color: black;">倘若</span>你连源码都没看过，基本上是会pass掉的，<span style="color: black;">例如</span>我<span style="color: black;">亦</span>是<span style="color: black;">这般</span>的！）</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">项目中遇到了<span style="color: black;">那些</span>比较有挑战性的问题，是<span style="color: black;">怎样</span><span style="color: black;">处理</span>的；（这个<span style="color: black;">特别有</span>争议，一方面是你连一个<span style="color: black;">繁杂</span>的问题都<span style="color: black;">处理</span>不了，要你过来干什么，还有<span style="color: black;">便是</span>，我的能力牛逼啊，<span style="color: black;">然则</span><span style="color: black;">机构</span><span style="color: black;">无</span>业务场景让我展示啊！这个就看你遇到的面试官了，祝你好运！）</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">最后，欢迎做Java的工程师<span style="color: black;">伴侣</span>关注<span style="color: black;">博主</span>，点关注，不迷路；<span style="color: black;">连续</span>更新Java架构<span style="color: black;">关联</span>技术及<span style="color: black;">新闻</span>！！！</p>
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<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/pgc-image/1d39d4efe9be451490ce5d1212acf550~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1721328297&x-signature=LxSmFXtz7Jyf4E5tEDvm8QKZmvk%3D" style="width: 50%; margin-bottom: 20px;"></div>
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你的话语如春风拂面，温暖了我的心房，真的很感谢。 真情实感，其含义为认真了、走心了的意思，是如今的饭圈常用语。
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