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12月3-5年Java后端开发面试你这么去准备...

  • 2025-12-05 01:02:53
12月3-5年Java后端开发面试你这么去准备...

12月3-5年Java后端开发面试你这么去准备...

12月3-5年Java后端开发面试你这么去准备...

12月3-5年Java后端开发面试你这么去准备...

12月3-5年Java后端开发面试你这么去准备...

12月3-5年Java后端开发面试你这么去准备...

12月3-5年Java后端开发面试你这么去准备...

12月3-5年Java后端开发面试你这么去准备...

3-5年Java后端面试，强度真的不只是堆技术广度！面试官更看重技术深度和项目融合能力👇
💡 核心考察点
 Java基础与并发
不止“会用”，更应该懂底层逻辑：
① HashMap、ConcurrentHashMap 源码级拆解
② synchronized 锁升级完整流程+实战场景选型
③ AQS 原理及在并发工具中的应用
④ 线程池工作机制+结合业务的合理配置方案
JVM机制与调优
① 内存模型、垃圾回收机制（G1/CMS 区别+演进逻辑）
② 实战化问题排查：Full GC频繁、内存泄漏定位与解决
框架原理深入
① Spring IoC/AOP 实现机制+事务管理源码解析
② SpringBoot 自动装配全流程+自定义starter开发能力
数据库与缓存
① MySQL 索引优化、事务隔离级别+锁机制实战
② Redis 核心数据类型、持久化策略、哨兵/集群部署
③ 缓存三大问题（穿透/雪崩/击穿）的应对方案+选型理由
分布式与消息队列
① 分布式锁主流实现方案+分布式事务核心理解
② RocketMQ/Kafka 关键机制：顺序消息、重复消费、高可用保障
关键突破：从“知道”到“讲明白”
面试官不满足于技术罗列，更想听你说：
① 如何把这些技术落地到项目，解决高并发、数据一致性等真实问题
② 技术选型的优劣分析、架构权衡思路
③ 从“被动执行”到“主动思考”的能力转变
#java #Java面试 #程序员 #oc #后端开发 #互联网大厂 #面经 #转码 #求职上岸 #程序员的出路
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  1. CONNECT:[ UseTime:0.001156s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001391s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000697s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000663s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001334s ]
  6. SELECT * FROM `set` [ RunTime:0.000975s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001470s ]
  8. SELECT * FROM `article` WHERE `id` = 457197 LIMIT 1 [ RunTime:0.001636s ]
  9. UPDATE `article` SET `lasttime` = 1765126436 WHERE `id` = 457197 [ RunTime:0.018151s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000684s ]
  11. SELECT * FROM `article` WHERE `id` < 457197 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001787s ]
  12. SELECT * FROM `article` WHERE `id` > 457197 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001036s ]
  13. SELECT * FROM `article` WHERE `id` < 457197 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003388s ]
  14. SELECT * FROM `article` WHERE `id` < 457197 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001292s ]
  15. SELECT * FROM `article` WHERE `id` < 457197 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001212s ]
0.203666s