- java集合、多线程、数据结构与算法、计算机网络通信、MySQL数据库、SSM框架、redis
java基础
- final
https://blog.nowcoder.net/n/abda03718cf44b65bf488b0d1faa35bc - static
https://blog.nowcoder.net/n/04a1973b777b489b9509d213f6e68901 - java为什么要重写equals方法和hashcode方法
https://blog.csdn.net/weixin_44844089/article/details/103681519 - 接口和抽象类的区别
https://blog.nowcoder.net/n/2f70b518fc90485c8d08b1bfc7bca412 - object类有哪些常用的方法?
https://blog.csdn.net/zbw125/article/details/116311778 - 说说反射吧
https://blog.csdn.net/o9109003234/article/details/110251936 - 常用的数据结构有哪些?(8种)
https://blog.csdn.net/java_green_hand0909/article/details/84970372 - 面向对象的三大特征:封装继承多态
https://www.cnblogs.com/sloth-007/p/10612267.html - 序列化和反序列化
https://www.cnblogs.com/huallx0510/p/13049984.html
数据结构与算法
- 常见的10大排序算法
https://blog.nowcoder.net/n/05603068849d49329342f8e52c5b9011 - queue和deque的区别与用法 https://blog.nowcoder.net/n/5630d144a3fc468d848151b7ed65c929
JVM
- 运行时数据区?
https://blog.nowcoder.net/n/6400939e4c6f4c7d8c8984da4c08de55 - 说说垃圾回收吧、Full GC和Young GC有什么区别
https://blog.nowcoder.net/n/e2a72240c43e4cfe82b11786d1ce2f8f - 垃圾回收器和垃圾回收算法
https://blog.csdn.net/newchenxf/article/details/78071804 - JMM(java memory model,java内存模型)
https://blog.nowcoder.net/n/400971a6efea46298d3d416b2e5fe2d4 - 说说类的加载过程吧
https://blog.nowcoder.net/n/97ac762e04b149039870bd901a30f19e - 说说类加载器有哪些?什么是双亲委派机制 https://www.cnblogs.com/name-lizonglin/p/12837467.html
集合
- hashmap、hashtable和concurrentmap的异同
https://blog.nowcoder.net/n/7a73e3b8acfa4533b81c8149426dc033 - hashMap之putVal()
https://blog.nowcoder.net/n/fa441b2edd544e3397793cddd03e89b5 - ArrayList和LinkedList有什么区别
https://blog.nowcoder.net/n/027832c4f25745c5ac94d5cdb2f1cbb2 - JAVA集合框架中的常用集合及其特点、适用场景、实现原理
https://blog.csdn.net/sdgihshdv/article/details/72566485 - 哈希冲突
https://www.cnblogs.com/yeya/p/9845910.html
多线程
- 线程池
https://blog.nowcoder.net/n/e3b04521deb145b792f53e1f9949710d - 开启一个线程的方法(创建线程的几种方式)
https://www.cnblogs.com/xiaostudy/p/9800601.html - 什么是线程安全?如何保证线程安全?
https://blog.nowcoder.net/n/fff41c0fe14747a69da049fbe6312334 - ThreadLocal
https://blog.nowcoder.net/n/54ffbf919eae469983db38c35c55190b - synchronized和ReentrantLock的联系与区别
https://blog.nowcoder.net/n/662931414fa04c578857323980534a30 - 简述AQS(AbstractQuenedSynchronizer)---抽象的队列式同步器
https://blog.nowcoder.net/n/8ff81c04f8794c87a868e1114e6497f5 - CAS、CAS出现的问题及怎么解决
https://blog.csdn.net/ls5718/article/details/52563959 - volatile
https://blog.nowcoder.net/n/40897794acf145c49419fb64d3b1f948 - 简述java线程的状态
https://blog.nowcoder.net/n/594e8e10039b4f2fbc7e3042b0ba76fa - 线程间通信的方式与进程间通信的方式
https://blog.nowcoder.net/n/a16580dfe5614b10bcb0bd9717c330fe - 简述阻塞队列
https://blog.nowcoder.net/n/a306ee6c484d4fe88657228f3cd2d316 - 简述CountDownLatch、CyclicBarrier、Semaphore https://blog.nowcoder.net/n/4e9180e4d82b46f5aa48ae41b97e2662
- as-if-serial和happens-before的区别
https://blog.nowcoder.net/n/95dd987fb0fb4c1faad9ef1948c20515
数据库
- 三范式
https://www.yukx.com/jing/article/details/1920.html - 索引(优劣、什么时候适合建、B+索引与hash索引、聚簇索引与非聚簇索引、InnoDB和MyISAM的区别)
https://blog.nowcoder.net/n/5d03e82081ef4ae3b073132f24714195 - MySQL有哪几种索引?(4种:FULLTEXT,HASH,BTREE,RTREE)
https://www.cnblogs.com/-619569179/p/6525684.html - Mysql索引查询失效的情况
https://www.cnblogs.com/wdss/p/11186411.html - 二叉搜索树、B树、B+树、AVL树、红黑树
https://blog.nowcoder.net/n/9fa9364d28e64dc89fff66e2768731f8 - 事务、ACID、脏读幻读不可重复读、隔离级别
https://blog.csdn.net/qq_37447414/article/details/81432675 - Mysql锁机制
https://blog.csdn.net/zl1zl2zl3/article/details/106989121 - 数据库的优化
https://blog.csdn.net/sinat_40307463/article/details/109570246 (简洁凝练!)
https://www.cnblogs.com/qianxiaox/p/14047435.html (详细!) - 左连接、右连接、内连接、全外连接区别?
https://www.yukx.com/jing/article/details/1926.html - 分布式事务
https://blog.csdn.net/petershuang/article/details/81109497
Spring
- Spring的两大特点/特征:IOC和AOP
https://blog.nowcoder.net/n/c2146d14c9b94e9ca2b35dddaf5f8d6f - Spring、Spring MVC、SpringBoot、SpringCloud的区别(大华技术面)
https://blog.nowcoder.net/n/e12746568f034166ad12d1e5cb6b88d0
Spring和SpringBoot的区别
https://blog.nowcoder.net/n/ece2f59fe47b441884256217a23f6a62
Spring的生命周期
https://blog.nowcoder.net/n/dfb729eddaa54cd5a56549da395647a9 - Spring框架的核心是什么
https://blog.nowcoder.net/n/2314b83ef6574ee69de41236edc2ab47 - spring中常用的设计模式
https://zhuanlan.zhihu.com/p/384765501 - 动态代理之jdk代理与cglib代理的区别
https://blog.nowcoder.net/n/71567f45503643d5a04813de1118033d - 附:23种设计模式
https://www.runoob.com/design-pattern/singleton-pattern.html
Redis
- redis的特点和优势
https://www.cnblogs.com/mengchunchen/p/9698351.html - 5种数据结构:String、Hash、链表、Set集合、zset集合
https://www.cnblogs.com/haoprogrammer/p/11065461.html - redis持久化的两种方式
https://blog.csdn.net/weixin_40521823/article/details/99880719 - redis速度为什么这么快?
https://blog.csdn.net/weixin_45583158/article/details/111399122 - 知道分布式锁吗?redis怎么实现分布式锁?
https://blog.csdn.net/taotao100595/article/details/109303916 - 跳跃表
https://www.cnblogs.com/hunternet/p/11248192.html - 主从复制及流程
https://blog.csdn.net/weixin_45783387/article/details/106038290 - redis集群
https://blog.csdn.net/miss1181248983/article/details/90056960 - redis网络连接模型、五大io模型、高性能单线程模型
https://blog.csdn.net/qq_28341873/article/details/102911201
计算机网络
- 输入网址到网页显示的整个流程
- https://blog.csdn.net/qq_33591903/article/details/84246177
- TCP三次握手与四次挥手
https://blog.nowcoder.net/n/fa7d938ad75d4e90b5b6f9444066e248 - 知道cookie和session吗?
https://www.jianshu.com/p/ca25259310c8 - http和https协议的区别
https://blog.csdn.net/qq_38289815/article/details/80969419 - get和post的区别
https://zhuanlan.zhihu.com/p/151440663 - 说说 HTTP 常见的状态码有哪些,适用场景?
https://blog.csdn.net/weixin_44475093/article/details/117236749 - 了解TCP/IP协议吗?什么是三次握手与四次挥手?什么是拥塞控制、流量控制?
https://blog.csdn.net/zone_/article/details/106894117
#Linux常见命令
https://blog.csdn.net/qq_23329167/article/details/83856430
秒杀项目
- 秒杀项目概述
https://blog.nowcoder.net/n/8df6299479aa4ba0830d8e8381f2e110 - 项目最大的难点/挑战点是什么?
https://blog.nowcoder.net/n/3ec2c953cd844effae3b83ed5e6f4e60 - 常问的问题:
1)缓存一致性问题
https://blog.nowcoder.net/n/bb293435eb3743808d21e8524141d227 2)缓存雪崩、缓存穿透
https://blog.nowcoder.net/n/23b03d72a1be4c1b9b6ce4c3f286b959 3)Redis能否用作消息队列?怎么实现?
https://blog.nowcoder.net/n/90f964467d624e99ad33c9ae0fbc44e8