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>给大家普及一下年前Java面试需要达到的强度
给大家普及一下年前Java面试需要达到的强度
2026-02-03 07:42:43
给大家普及一下年前Java面试需要达到的强度
年前Java后端面试竞争激烈,强度不只在于广度,更看重技术深度与项目融合能力。
💡核心考察点
Java 基础与并发
不止于“会用”,更要懂底层实现。例如:
①HashMap、ConcurrentHashMap 源码级理解
②synchronized 锁升级流程与使用场景
③AQS 原理及其在并发工具中的应用
④线程池工作机制与合理配置
JVM 机制与调优
①熟悉内存模型、垃圾回收机制(G1/CMS 区别与演进)
②能结合实战场景排查 Full GC、内存泄漏等问题
框架原理深入
①Spring IoC / AOP 实现机制与事务管理源码
②SpringBoot 自动装配流程与 starter 自定义能力
数据库与缓存
①MySQL 索引优化、事务隔离级别与锁机制
②Redis 核心数据类型、持久化策略、哨兵/集群模式
③典型缓存问题应对:穿透、雪崩、击穿
分布式与消息队列
①分布式锁实现方案与分布式事务理解
②RocketMQ/Kafka 在顺序消息、重复消费、高可用方面的机制
关键突破在于:从知道到讲明白
面试官不再满足于技术罗列,更希望听到:
①你如何将技术应用于项目,解决真实问题(如高并发、数据一致性)
②背后的选型理由、优劣分析、架构权衡
③体现你从“执行者”到“思考者”的转变
#Java开发
#后端开发
#Java面试
#Java后端
#互联网大厂
#后端面试
#java
#程序员
#面试求职
#面试技巧
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CONNECT:[ UseTime:0.000653s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000583s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003413s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.004538s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000653s ]
SELECT * FROM `set` [ RunTime:0.001515s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000528s ]
SELECT * FROM `article` WHERE `id` = 457625 LIMIT 1 [ RunTime:0.003263s ]
UPDATE `article` SET `lasttime` = 1770780770 WHERE `id` = 457625 [ RunTime:0.010978s ]
SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.011160s ]
SELECT * FROM `article` WHERE `id` < 457625 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.005045s ]
SELECT * FROM `article` WHERE `id` > 457625 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006293s ]
SELECT * FROM `article` WHERE `id` < 457625 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.009008s ]
SELECT * FROM `article` WHERE `id` < 457625 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.030872s ]
SELECT * FROM `article` WHERE `id` < 457625 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008995s ]
0.264196s