目录整理

工具

1. Collections方法 创建简单的List
   https://blog.csdn.net/inflaRunAs/article/details/105070170
    
2. Java 判断 JsonObject 是否存在某个字段
   https://blog.csdn.net/inflaRunAs/article/details/89233750
    
3. java 判断 Object对象 是否 为空 或者 空字符串
   https://blog.csdn.net/inflaRunAs/article/details/104485322
    
4. Java List的五种去重方法及效率对比
   https://blog.csdn.net/inflaRunAs/article/details/104373443
5. list 取指定下标 区间 的值
   https://blog.csdn.net/inflaRunAs/article/details/103617520
    
6. list中含有map的排序问题
   https://blog.csdn.net/inflaRunAs/article/details/103544589
    
7. String.split 使用特殊字符 作为 分隔符如：* ^ ： | , . --- java.lang.ArrayIndexOutOfBoundsException: 0
   https://blog.csdn.net/inflaRunAs/article/details/103809140
    
8. java string 字符串截取的几种方式
   https://blog.csdn.net/inflaRunAs/article/details/86515554
    
9. String的substring()
   https://blog.csdn.net/inflaRunAs/article/details/102686320
    
10. String charAt()方法
    https://blog.csdn.net/inflaRunAs/article/details/103544541
     
11. fastjson List 、JSONArray、String 相互转化
    https://blog.csdn.net/inflaRunAs/article/details/102795432
     
12. java工具类 StringUtils
    https://blog.csdn.net/inflaRunAs/article/details/86510841
     
13. Java工具类StringUtils：常用方法详解
    https://blog.csdn.net/inflaRunAs/article/details/86510824
     
14. Java 求字符串String中出现次数最多的元素是哪个及个数
    https://blog.csdn.net/inflaRunAs/article/details/88609121
     
15. Java 判断 日期字符串 是否为 指定的格式
    https://blog.csdn.net/inflaRunAs/article/details/86510799
     
16. 非法字符的正则表达式
    https://blog.csdn.net/inflaRunAs/article/details/86510774
     
17. java去除字符串中的空格、回车、换行符、制表符
    https://blog.csdn.net/inflaRunAs/article/details/86491506
     
18. 对象 的 复制
    https://blog.csdn.net/inflaRunAs/article/details/105068649
     
19. Contains方法：数组A 是否包含 数组B 的某些元素
    https://blog.csdn.net/inflaRunAs/article/details/88563213
     
20. Java 判断数组是否包含某个值
    https://blog.csdn.net/inflaRunAs/article/details/101908295
     
21. 计算年龄：根据生日时间戳，获得目前的年龄
    https://blog.csdn.net/inflaRunAs/article/details/101279589
     
22. Java 计算两个日期之间相差的天数 和 判断某个月有多少天
    https://blog.csdn.net/inflaRunAs/article/details/83411035
     
23. Java 获取 resultSet 查询 结果的大小
    https://blog.csdn.net/inflaRunAs/article/details/100937334
     
24. Java 判断数据是哪种数据类型
    https://blog.csdn.net/inflaRunAs/article/details/98948368
     
25. Double 保留至小数点后两位
    https://blog.csdn.net/inflaRunAs/article/details/89675685
     

26. java 判断 两个 Integer 对象 是否相等 建议使用 equals 不建议用 “==”
    https://blog.csdn.net/inflaRunAs/article/details/105077390
     

27. String.format()的详细用法
    https://blog.csdn.net/anita9999/article/details/82346552

---

Java基础

1. java中 Integer.parseInt() 和 Integer.valueOf() 的区别是什么？
   https://blog.csdn.net/inflaRunAs/article/details/104368662
    
2. 【错误理解】 Integer.getInteger(String str)
   https://blog.csdn.net/inflaRunAs/article/details/90669070
    
3. @Autowired @Resource @Qualifier的区别（稍显混乱）
   https://blog.csdn.net/inflaRunAs/article/details/103958907
    
4. @RequestParam、@RequestBody和@ModelAttribute区别
   https://blog.csdn.net/inflaRunAs/article/details/103958774
    
5. springmvc运行原理
   https://blog.csdn.net/inflaRunAs/article/details/103671324
    
6. @RequestMapping 注解使用技巧
   https://blog.csdn.net/inflaRunAs/article/details/91427201

---

Java高级

1. 反射
   https://blog.csdn.net/inflaRunAs/article/details/93040885
    
2. 反射 Spring IoC
   https://blog.csdn.net/inflaRunAs/article/details/88949076
    
3. 【ioc aop】3.1 Spring 控制反转（IOC）和依赖注入（DI）的区别
   https://blog.csdn.net/inflaRunAs/article/details/92837660
    
4. 代理 -- 概述及解释
   https://blog.csdn.net/inflaRunAs/article/details/93045863
    
5. 静态代理
   https://blog.csdn.net/inflaRunAs/article/details/103945689
    
6. 静态代理、动态代理
   https://blog.csdn.net/inflaRunAs/article/details/93190565
    
7. 动态代理 jdk cglib
   https://blog.csdn.net/inflaRunAs/article/details/93201629
    
8. 【java 代理】2.3 动态代理 cglib（一）
   https://blog.csdn.net/inflaRunAs/article/details/100521621
    
9. 【java 代理】2.4 动态代理 cglib（二）
   https://blog.csdn.net/inflaRunAs/article/details/100521712
    
10. 【java 代理】2.5 动态代理 cglib（三）
    https://blog.csdn.net/inflaRunAs/article/details/100521901
     
11. 自定义注解 -- 基础 （一）
    https://blog.csdn.net/inflaRunAs/article/details/93336591
     
12. 自定义异常处理、异常统一处理（二）
    https://blog.csdn.net/inflaRunAs/article/details/94003827
     
13. java事务异常——Spring事务异常回滚，捕获异常不抛出就不会回滚
    https://blog.csdn.net/inflaRunAs/article/details/88676039
     
14. 【ioc aop】3.2 Spring aop+注解实现简单的日志管理
    https://blog.csdn.net/inflaRunAs/article/details/88676358
     
15. Java 单例模式 懒汉饿汉
    https://blog.csdn.net/inflaRunAs/article/details/93871079
     
16. Java static 关键字
    https://blog.csdn.net/inflaRunAs/article/details/82118345
     
17. spring常用的三种依赖注入方式
    https://blog.csdn.net/inflaRunAs/article/details/92839204
     
18. java 获取Class对象 的三种方式
    https://blog.csdn.net/inflaRunAs/article/details/102823177
     
19. Java多线程——基本概念
    https://blog.csdn.net/inflaRunAs/article/details/103542605
     
20. java常用的几种线程池比较
    https://blog.csdn.net/inflaRunAs/article/details/101915060
     
21. 【多线程】ThreadLocal原理（一）
    https://blog.csdn.net/inflaRunAs/article/details/93757540
     
22. 【多线程】ThreadLocal原理（二）
    https://blog.csdn.net/inflaRunAs/article/details/93757960
     
23. 彻底理解ThreadLocal（未整理）
    https://blog.csdn.net/inflaRunAs/article/details/103542627
     
24. 面试合集
    https://blog.csdn.net/inflaRunAs/article/details/105078522
     

25. 什么是 JWT -- JSON WEB TOKEN
    https://www.jianshu.com/p/576dbf44b2ae

26. spring项目启动就加载文件@Configuration的使用
    https://www.cnblogs.com/duanxz/p/7493276.html

27. spring restTemplate详解
    https://www.cnblogs.com/zhaoyan001/p/8442602.html

28. spring RestTemplate使用
    https://www.jianshu.com/p/0fd5f3f64137

29. Java23种设计模式
    https://www.cnblogs.com/maowang1991/archive/2013/04/15/3023236.html

30. Java网络编程总结
    https://blog.csdn.net/qq_36544760/article/details/79404672

---

Java应用

1. 枚举类
   https://blog.csdn.net/inflaRunAs/article/details/103946661
    
2. 自定义注解 -- 基础及应用场景
   https://blog.csdn.net/inflaRunAs/article/details/104005093
    
3. Java 实现异步调用（不是很详细）
   https://blog.csdn.net/inflaRunAs/article/details/103936722
    
4. java 三种调用机制（同步、回调、异步）
   https://blog.csdn.net/inflaRunAs/article/details/104373825
    
5. java 项目启动时 执行 指定方法 的 几种方式
   https://blog.csdn.net/inflaRunAs/article/details/103656479
    
6. 定时任务 创建
   https://blog.csdn.net/inflaRunAs/article/details/103656264
    
7. 定时任务：@Scheduled 各参数详解
   https://blog.csdn.net/inflaRunAs/article/details/94021209
    
8. java 获取项目的src路径，也就是拼全路径
   https://blog.csdn.net/inflaRunAs/article/details/101913541
    
9. swagger2 boot cloud 整合
   https://blog.csdn.net/inflaRunAs/article/details/101906001
10. 【Spring】RequestContextHolder简析
    https://blog.csdn.net/inflaRunAs/article/details/93758566
     
11. lombok几个基本注解的使用 @Data、@AllArgsConstructor、@NoArgsConstructor、@Builder
    https://blog.csdn.net/inflaRunAs/article/details/105273991
     
12. lombok @Accessors用法
    https://blog.csdn.net/weixin_38229356/article/details/82937420
     

13. boot 整合 PageHelper 分页插件
    https://blog.csdn.net/inflaRunAs/article/details/105276455

14. SpringMvc 传Date类型实体对象至后台的方式
    https://blog.csdn.net/dinghai_ok/article/details/77370389

---

mybatis

1. Mybatis 扫描不到 mapper.xml
   https://blog.csdn.net/inflaRunAs/article/details/89323678
    
2. Maven多模块下,扫描不到子模块mybatis xml文件的解决方法
   https://blog.csdn.net/inflaRunAs/article/details/105204786
    
3. mybatis @MapperScan和@Mapper区别及理解
   https://blog.csdn.net/inflaRunAs/article/details/105205123
    
4. mybatis.mapper-locations 配置一个或多个mapper.xml路径
   https://blog.csdn.net/inflaRunAs/article/details/105205624
    
5. mybatis的一些特殊符号标识（大于，小于，等于，不等于）
   https://blog.csdn.net/inflaRunAs/article/details/89088537
    
6. mybatis的mapper接口没有实现类，那他是如何进行实例化的
   https://blog.csdn.net/inflaRunAs/article/details/89087744
    
7. mybatis 特殊字符转义
   https://blog.csdn.net/inflaRunAs/article/details/88676185
    
8. mybatis 缓存
   https://blog.csdn.net/inflaRunAs/article/details/88630592
    
9. MyBatis如何防止SQL注入（一）
   https://blog.csdn.net/inflaRunAs/article/details/88563343
    
10. MyBatis如何防止SQL注入（二）
    https://blog.csdn.net/inflaRunAs/article/details/88563498
     
11. springboot 使用@Autowired注入Mapper 报错
    https://blog.csdn.net/inflaRunAs/article/details/86597547
     
12. mybatis+mysql insert 添加数据后返回数据主键id
    https://blog.csdn.net/inflaRunAs/article/details/102796696
     

13. boot 整合 mybatis
    https://blog.csdn.net/inflaRunAs/article/details/105288094

14. mybatis resultType 解析
    https://www.cnblogs.com/pjfmeng/p/7688172.html

15. SSM框架——使用MyBatis Generator自动创建代码
    https://blog.csdn.net/zhshulin/article/details/2391261

16. mybatis 控制台打印sql
    https://blog.csdn.net/inflaRunAs/article/details/105346001

---

报错

1. Eureka Client启动后就关闭 Unregistering application xxx with eureka with status DOWN
   https://blog.csdn.net/inflaRunAs/article/details/104730250
    
2. Mysql语句报错 Operand should contain * column
   https://blog.csdn.net/inflaRunAs/article/details/104373796
    
3. maven项目 子模块启动报错 Non-resolvable parent POM for com.ruyi.item-center-0.0.1-SNAPSHOT and 'parent.relativaPath' points at wrong local POM ....
    https://blog.csdn.net/inflaRunAs/article/details/104373756
    
4. maven项目 子模块启动报错 Non-resolvable parent POM for com.example:demo-1:0.0.1-SNAPSHOT: Failure to transfer org.springframework.boot:spring-boot-starter-parent:pom:1.5.2.RELEASE from...
   https://blog.csdn.net/inflaRunAs/article/details/104373671
    
5. maven项目 子模块启动报错 Non-resolvable parent POM: Could not find artifact item-center
   https://mp.csdn.net/console/editor/html/104373655
    
6. maven dependencies与dependencyManagement的区别
   https://blog.csdn.net/inflaRunAs/article/details/103542437
    
7. Boot上传文件报错 the request was rejected because its size (576134143) exceeds the configured maximum (52428800)
   https://blog.csdn.net/inflaRunAs/article/details/103945156
    
8. 测试类自动注入失败：@RunWith(SpringRunner.class)详解
   https://blog.csdn.net/inflaRunAs/article/details/103936977
    
9. 端口被占用 Address already in use: JVM_Bind 解决办法
   https://blog.csdn.net/inflaRunAs/article/details/103935130
    
10. cloud 启动报错（mysql连接）：If you want an embedded database please put a supported one on the classpath
    https://blog.csdn.net/inflaRunAs/article/details/103935059
     
11. 实体类名 不要 与 关键字 相同
    https://blog.csdn.net/inflaRunAs/article/details/103768645
     
12. git add 时报错：提示 The file will have its original line endings in your working directory
    https://blog.csdn.net/inflaRunAs/article/details/103723997
     
13. spring boot项目启动报错:Failed to load property source from location 'classpath:/application.yml'
    https://blog.csdn.net/inflaRunAs/article/details/103713717
     
14. Spring定时任务的坑 @Scheduled 默认不支持 L 等其他特殊字符 关键字
    https://blog.csdn.net/inflaRunAs/article/details/103656390
     
15. boot项目，读取yml 数字数据 以数字0开头，获得数据与记录数据不符
    https://blog.csdn.net/inflaRunAs/article/details/103542135
     
16. java.lang.UnsupportedOperationException解决方法
    https://blog.csdn.net/inflaRunAs/article/details/103197975
     
17. ArrayList报错：UnsupportedOperationException
    https://blog.csdn.net/inflaRunAs/article/details/101906210
     
18. mybatis Parameter index out of range (9 > number of parameters, which is 8)
    https://blog.csdn.net/inflaRunAs/article/details/103164337
     
19. 常见的java非运行时异常有哪些
    https://blog.csdn.net/inflaRunAs/article/details/103542478
     
20. git push 时报错：提示 refusing to merge unrelated histories
    https://blog.csdn.net/inflaRunAs/article/details/102466522
     
21. mysql 错误：Column ‘id’ in field list is ambiguous
    https://blog.csdn.net/inflaRunAs/article/details/100742279
     
22. 【mysql 报错】“ You can't specify target table '表名' for update in FROM clause”
    https://blog.csdn.net/inflaRunAs/article/details/100333903
     
23. tomcat启动：Exception loading sessions from persistent storage
    https://blog.csdn.net/inflaRunAs/article/details/83650141
     
24. Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'userinfo.(一)
    https://blog.csdn.net/inflaRunAs/article/details/92770462
     
25. Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'userinfo.(二)
    https://blog.csdn.net/inflaRunAs/article/details/90916760
     
26. 【mysql 报错】 You can't specify target table 'table name' for update in FROM clause
    https://blog.csdn.net/inflaRunAs/article/details/90907787
     
27. 【报错 时间戳转化日期】结果总是1970年
    https://blog.csdn.net/inflaRunAs/article/details/90669151
     
28. mysql sql 报错：Duplicate entry 'DEM03523005-653' for key 'unionKey'
    https://blog.csdn.net/inflaRunAs/article/details/90603690
     
29. springboot 接收前台传来的对象为空
    https://blog.csdn.net/inflaRunAs/article/details/89226757
     
30. JS异常处理：Uncaught TypeError: xxx is not a function at HTMLAnchorElement.onclick
    https://blog.csdn.net/inflaRunAs/article/details/86510644
     
31. 启动报错：java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or
    https://blog.csdn.net/inflaRunAs/article/details/86086314
     
32. 启动报错：Field xxxMapper in com.xxx.service.impl.xxxServiceImpl required a bean of type
    https://blog.csdn.net/inflaRunAs/article/details/86085790
     
33. 【异常】IOException parsing XML document from class path resource [xxx.xml]
    https://blog.csdn.net/inflaRunAs/article/details/86019112
     
34. IDEA Junit测试报错：java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
    https://blog.csdn.net/inflaRunAs/article/details/85329845
     
35. tomcat启动：Exception loading sessions from persistent storage
    https://blog.csdn.net/inflaRunAs/article/details/84783258
     
36. tomcat启动报错：Error configuring application listener of class listener.ContainerListener
    https://blog.csdn.net/inflaRunAs/article/details/83614931
     
37. Error:Could not create the java Virtual Machine. Erroe:A fatal exception has occurred.Program will e
    https://blog.csdn.net/inflaRunAs/article/details/80634323
     

38. boot 启动报错：Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com...
    https://blog.csdn.net/inflaRunAs/article/details/105142721

---

git

1. git 在 idea 中 的使用 及 大方向 问题
   https://blog.csdn.net/inflaRunAs/article/details/86288133
    
2. git命令
   https://blog.csdn.net/inflaRunAs/article/details/86510906
    
3. git 每次 pull 或者 push 时 都要求 重新输入用户名和密码
   https://blog.csdn.net/inflaRunAs/article/details/103736911
    
4. git add 时报错：提示 The file will have its original line endings in your working directory
   https://blog.csdn.net/inflaRunAs/article/details/103723997
    
5. git .ignore文件 一个小坑 .idea/workspace.xml
   https://blog.csdn.net/inflaRunAs/article/details/103667293
    
6. git 在 idea 中 的更新、提交、还原 操作（未整理）
   https://blog.csdn.net/inflaRunAs/article/details/103542559
    
7. 生成SSH密钥添加到Github
   https://blog.csdn.net/inflaRunAs/article/details/103542507
    
8. tag创建、分支远程推送、回退以及强推
   https://blog.csdn.net/inflaRunAs/article/details/102797546
    
9. git 创建新分支，并向新分支推送代码
   https://blog.csdn.net/inflaRunAs/article/details/99082335

---

boot、cloud

1. 配置文件properties相关
   https://blog.csdn.net/inflaRunAs/article/details/104804184
    
2. application.yml和 bootstrap.yml区别
   https://www.jianshu.com/p/8c1d32cae0b4
    
3. pom文件 中的 部分属性
   https://blog.csdn.net/inflaRunAs/article/details/104736368
    
4. springcloud 删除项目中的module以后，maven project中还有此依赖
   https://blog.csdn.net/inflaRunAs/article/details/104373629
    
5. SpringBoot和SpringCloud版本对应
   https://blog.csdn.net/inflaRunAs/article/details/103723578
    
6. SpringBoot四大核心
   https://blog.csdn.net/inflaRunAs/article/details/103544732
    
7. git .gitignore 文件 参数模板
   https://blog.csdn.net/inflaRunAs/article/details/100134841
    
8. springboot 地址栏传值接值
   https://blog.csdn.net/inflaRunAs/article/details/91421062
    
9. spring boot 配置文件application.yaml 内设置变量的格式
   https://blog.csdn.net/inflaRunAs/article/details/100038980
    
10. maven 的 pom.xml中 repositories 的作用
    https://blog.csdn.net/inflaRunAs/article/details/99309355
     
11. springboot 配置文件application相关参数
    https://blog.csdn.net/inflaRunAs/article/details/97776627
     
12. java 获取yaml中常量
    https://blog.csdn.net/inflaRunAs/article/details/97651067
     
13. IDEA创建springboot项目，特殊项目目录介绍（.idea、.iml、.gitignore、.mvn、mvnw、mvnw.cmd、.gitimodules、.gitkeep）
    https://blog.csdn.net/inflaRunAs/article/details/93977137
     

14. boot 配置 mysql 数据库
    https://blog.csdn.net/inflaRunAs/article/details/105091888
     

15. Spring Boot Admin-应用健康监控后台管理
    https://www.jianshu.com/p/921387db847e
     

16. 原子操作类AtomicInteger详解
    https://blog.csdn.net/fanrenxiang/article/details/80623884

---

cloud相关

1. cloud搭建教程-全套
   https://blog.csdn.net/forezp/article/details/70148833
    
2. 注册中心客户端 注解 @EnableEurekaClient 与 @EnableDiscoveryClient 区别
   https://blog.csdn.net/inflaRunAs/article/details/103737186
    
3. Eureka核心知识点
   https://blog.csdn.net/inflaRunAs/article/details/103701997
    

4. 使用Spring Cloud搭建服务注册中心
   https://mp.weixin.qq.com/s?__biz=MzI1NDY0MTkzNQ==&mid=2247483878&idx=1&sn=d49f2eb61bada3d34443a0a4017a7b72&scene=21#wechat_redirect
    

5. Eureka Server之注册实例自我保护机制
   https://www.jianshu.com/p/9cf099dd9d55
    

6. eureka服务注册与发现
   https://blog.csdn.net/u013269532/article/details/80844589

7. eureka-server 集群 创建方式
   https://blog.csdn.net/inflaRunAs/article/details/103784866
    
8. spring cloud Eureka 之配置信息
   https://blog.csdn.net/inflaRunAs/article/details/97784205
   https://blog.csdn.net/zcs20082015/article/details/79637278
    
9. Eureka控制台参数说明
   https://blog.csdn.net/inflaRunAs/article/details/103702050
    
10. cloud 启动报错 Cannot execute request on any known server 几种解决办法
    https://blog.csdn.net/inflaRunAs/article/details/103714062
     
11. cloud feign 报错 feign/Feign$Builder
    https://blog.csdn.net/inflaRunAs/article/details/103713824
     
12. cloud config 配置报错Could not resolve placeholder 'foo' in value "${foo}"
    https://blog.csdn.net/inflaRunAs/article/details/103782000
     
13. 由 springcloud ribbon 的 @LoadBalanced注解 的 使用理解
    https://blog.csdn.net/inflaRunAs/article/details/103710195
     
14. zuul 从简单基础 到深入理解
    入门：https://www.cnblogs.com/idoljames/p/11727728.html
    基础配置：https://www.cnblogs.com/idoljames/p/11729561.html
    工作原理：https://www.cnblogs.com/idoljames/p/11741382.html
    自定义filter：https://www.cnblogs.com/idoljames/p/11743058.html
    限流：https://www.cnblogs.com/idoljames/p/11743457.html
    文件上传：https://www.cnblogs.com/idoljames/p/11745763.html
     
15. Feign的配置及对hystrix的支持
    https://blog.csdn.net/mobiusstrip/article/details/83859300
     
16. eureka工作原理及 与zookeeper区别
    https://www.cnblogs.com/snowjeblog/p/8821325.html
     
17. 配置中心（Config-Server）
    https://blog.csdn.net/pengjunlee/article/details/88061736
     

18. 分布式链路追踪
    https://www.jianshu.com/p/07cf4093536a?from=singlemessage

---

idea

1. idea 创建 mapper.xml 模板 及 使用
   https://blog.csdn.net/inflaRunAs/article/details/103935726
    
2. idea 项目内隐藏掉 .iml 类型文件
   https://blog.csdn.net/inflaRunAs/article/details/103669050
    
3. idea 导入项目时 “Import project from external model” 和 “Create project from existing sources”的区别
   https://blog.csdn.net/inflaRunAs/article/details/102466263
    
4. idea 点击一个类，自动定位到类所在的目录位置
   https://blog.csdn.net/inflaRunAs/article/details/92796534
    
5. IDEA创建Spring Boot项目无法连接http://start.spring.io 解决方法
   https://blog.csdn.net/inflaRunAs/article/details/92796288
    
6. idea误报
   https://blog.csdn.net/inflaRunAs/article/details/89214669
    
7. idea 基础教程（未整理）
   https://blog.csdn.net/inflaRunAs/article/details/88813096
    
8. idea什么时候用导入（import），什么时候用打开（open）
   https://blog.csdn.net/inflaRunAs/article/details/88812711
    
9. IDEA Springboot自动生成webapp和下面的xml文件(详细)
   https://blog.csdn.net/inflaRunAs/article/details/86087327
    
10. Intellij Idea 导入多个maven项目,通过父工程引入子工程
    https://blog.csdn.net/inflaRunAs/article/details/86019438
     
11. idea启动报错：Caused by: java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log
    https://blog.csdn.net/inflaRunAs/article/details/81582651
     
12. IDEA使用maven创建web项目卡住解决办法
    https://blog.csdn.net/inflaRunAs/article/details/81544647
     
13. idea配置maven
    https://segmentfault.com/a/1190000007995705
     
14. idea 配置 maven 中的repositories
    https://ask.csdn.net/questions/978016
     
15. idea使用
    https://www.jianshu.com/p/3c87487e7121
    https://www.douban.com/note/671690598/
    https://cloud.tencent.com/developer/article/1489473

---

mysql

1. mysql （一）安装
   https://blog.csdn.net/inflaRunAs/article/details/88794309
    
2. mysql 存储引擎 类型介绍
   https://blog.csdn.net/inflaRunAs/article/details/103385356
    
3. mysql 存储引擎 MyISAM与InnoDB 的区别
   https://blog.csdn.net/inflaRunAs/article/details/103392245
    
4. mysql 缓存机制
   https://blog.csdn.net/inflaRunAs/article/details/103462828
    
5. mysql 数据库事务 （一） 基础
   https://blog.csdn.net/inflaRunAs/article/details/103382213
    
6. mysql 数据库事务 （二）隔离级别
   https://blog.csdn.net/inflaRunAs/article/details/103434518
    
7. 数据库事务的四大特性及事务的隔离级别
   https://blog.csdn.net/zuoyixiao/article/details/78458093
    
8. mysql 数据库事务 （三）查询及杀死正在运行的 有哪些事务、都锁定哪些资源
   https://blog.csdn.net/inflaRunAs/article/details/103462182
    
9. mysql 数据库锁 （一） 基础
   https://blog.csdn.net/inflaRunAs/article/details/103454789
    
10. mysql 数据库锁 （二）（悲观锁、乐观锁、表锁、行锁、临间锁、间隙锁、记录锁、共享锁、排他锁、意向共享锁、意向排他锁）
    https://blog.csdn.net/inflaRunAs/article/details/103455661
     
11. mysql 分库分表 问题及方案
    https://blog.csdn.net/inflaRunAs/article/details/103525123
     
12. 树（一）树基础、二叉树基础
    https://blog.csdn.net/inflaRunAs/article/details/103244030
     
13. 树（二）二叉搜索树
    https://blog.csdn.net/inflaRunAs/article/details/103264047
     
14. 树（三）平衡树
    https://blog.csdn.net/inflaRunAs/article/details/103497714
     
15. 索引 -- 基础（普通索引，组合索引）
    https://blog.csdn.net/inflaRunAs/article/details/103204043
     
16. 索引（一） 原理（聚集索引，非聚集索引，覆盖索引）
    https://blog.csdn.net/inflaRunAs/article/details/103215069
     
17. 索引（二）单列索引 多列索引
    https://blog.csdn.net/inflaRunAs/article/details/103205391
     
18. 索引（三）主键索引 唯一索引 联合索引
    https://blog.csdn.net/inflaRunAs/article/details/103205842
     
19. 索引（四）最左前缀原则
    https://blog.csdn.net/inflaRunAs/article/details/103216950
     
20. 索引（五）索引 追补
    https://blog.csdn.net/inflaRunAs/article/details/103544498
     
21. mysql （二）数据库设计中的14个技巧
    https://blog.csdn.net/inflaRunAs/article/details/103166858
     
22. mysql DDL语句创表 表的自增id不是0
    https://blog.csdn.net/inflaRunAs/article/details/102853445
     
23. mysql 连接参数 useAffectedRows -- update返回的受影响行数不准确（1）
    https://blog.csdn.net/inflaRunAs/article/details/100139738
     
24. mysql 连接参数 useAffectedRows -- update返回的受影响行数不准确（2）
    https://blog.csdn.net/inflaRunAs/article/details/100139793

---

sql基础

1. sql 函数整理
   https://blog.csdn.net/inflaRunAs/article/details/103542651
    
2. sql join 查询：类型及类型的区别和效率
   https://blog.csdn.net/inflaRunAs/article/details/103513801
    
3. sql 字符串排序
   https://blog.csdn.net/inflaRunAs/article/details/103511906
    
4. sql（一）优化
   https://blog.csdn.net/inflaRunAs/article/details/103508381
    
5. sql（二）优化：腾讯面试题：一条SQL语句执行得很慢的原因有哪些？
   https://blog.csdn.net/inflaRunAs/article/details/103511783
    
6. sql 笼统梳理sql语句
   https://blog.csdn.net/inflaRunAs/article/details/103508323
    
7. mysql 存储过程
   https://blog.csdn.net/inflaRunAs/article/details/103479501
    
8. mysql 视图
   https://blog.csdn.net/inflaRunAs/article/details/103474867
    
9. mysql 视图与表的区别
   https://blog.csdn.net/inflaRunAs/article/details/88677756
    
10. java sql 大于小于不等于
    https://blog.csdn.net/inflaRunAs/article/details/89636041
     
11. mysql数据库中tinyint类型字段存储1或2，但读取数据为true和false
    https://blog.csdn.net/inflaRunAs/article/details/89635322
     
12. sql 读取 日期类型 字段 返回值 最后多了个 .0： 2019-0808 00:00:00.0
    https://blog.csdn.net/inflaRunAs/article/details/103935764
     
13. sql 语句 将 查询到的 时间戳 直接转换 日期类型 输出
    https://blog.csdn.net/inflaRunAs/article/details/103611438
     
14. sql 获取日期、获取时间戳、日期和时间戳互相转化
    https://blog.csdn.net/inflaRunAs/article/details/103594409
     
15. sql 对查询出的 结果集 添加 自增序号列/排序列
    https://blog.csdn.net/inflaRunAs/article/details/103589404
     

16. sql 查询各种类型的前n条数据
    https://blog.csdn.net/inflaRunAs/article/details/105076277

---

sql应用

1. insert into select 复制表 和 select into 查询旧表并创建新表
   https://blog.csdn.net/inflaRunAs/article/details/103199000
    
2. insert into select 实现 条件 插入
   https://blog.csdn.net/inflaRunAs/article/details/102819409
    
3. insert 如果传入值为空则设置默认值 -- IFNULL()
   https://blog.csdn.net/inflaRunAs/article/details/90769448
    
4. insert 不存在则添加，存在则忽略/存在则更新
   https://blog.csdn.net/inflaRunAs/article/details/98753704
    
5. insert 批量插入/插入list/动态插入
   https://blog.csdn.net/inflaRunAs/article/details/90751476
    
6. update join -- 把 关联表 的 某个字段值 赋值到 本表 的某个字段
   https://blog.csdn.net/inflaRunAs/article/details/102817542
    
7. sql计算相差天数：MySQL时间差函数TIMESTAMPDIFF、DATEDIFF的用法
   https://blog.csdn.net/inflaRunAs/article/details/101279892
    
8. mybatis 项目中遇到的一些特殊sql
   https://blog.csdn.net/inflaRunAs/article/details/100095248
    
9. mysql 模拟表 dual 表
   https://blog.csdn.net/inflaRunAs/article/details/98863797
    
10. 排序：order by 多字段排序、自定义排序、中文排序、其他条件排序
    https://blog.csdn.net/inflaRunAs/article/details/97399932
     
11. concat() 和 concat_ws() -- 多表关联 拼接字段值
    https://blog.csdn.net/inflaRunAs/article/details/95733916
     
12. mybatis 传入不同类型参数
    https://blog.csdn.net/inflaRunAs/article/details/90757520
     
13. Mybatis 同时传入多个参数和对象
    https://blog.csdn.net/inflaRunAs/article/details/90212159
     
14. 列合并：两列 或 多列 合并为 一列
    https://blog.csdn.net/inflaRunAs/article/details/90665835
     
15. 行合并：两行 或 多行 合并为 一行
    https://blog.csdn.net/inflaRunAs/article/details/90665689
     
16. mysql sql修改 表名、字段名及其他属性
    https://blog.csdn.net/inflaRunAs/article/details/91045202
     
17. mysql 用sql修改字段
    https://blog.csdn.net/inflaRunAs/article/details/90903841
     
18. 函数 substring_index()
    https://blog.csdn.net/inflaRunAs/article/details/90511522
     
19. mybatis integer类型数据 传值为0时，为什么不判断
    https://blog.csdn.net/inflaRunAs/article/details/90438991
     
20. mysql 正则解决：同一字段 like 多值 可区分 单向模糊 和 双向模糊
    https://blog.csdn.net/inflaRunAs/article/details/90408299
     
21. 一次性查出男女生各多少人（同一字段 不同的枚举值的记录 各有多少条）
    https://blog.csdn.net/inflaRunAs/article/details/88975854
     
22. group_concat
    https://blog.csdn.net/u012620150/article/details/81945004
     
23. sql 动态sql
    https://blog.csdn.net/inflaRunAs/article/details/89955312
     
24. mybatis sql select 根据条件，动态返回数据
    https://blog.csdn.net/inflaRunAs/article/details/89948930
     
25. mysql 字段默认值 设置 当前时间
    https://blog.csdn.net/inflaRunAs/article/details/88871951
     
26. sql left join 条件筛选的放置位置 
    https://blog.csdn.net/inflaRunAs/article/details/105195477

---

redis

1. windows 下 搭建单机redis
   https://blog.csdn.net/inflaRunAs/article/details/99960458
    
2. boot项目  应用Redis
   https://blog.csdn.net/inflaRunAs/article/details/105341071
    
3. redis自带压力测试工具-----redis-benchmark
   https://blog.csdn.net/inflaRunAs/article/details/88676944
    
4. java操作redis的五种数据类型及应用场景
   https://blog.csdn.net/inflaRunAs/article/details/88676862

---

linux

1. linux查看防火墙状态及开启关闭命令
   https://blog.csdn.net/inflaRunAs/article/details/90297203
    
2. linux下 查看mysql是否启动
   https://blog.csdn.net/inflaRunAs/article/details/90269913
    
3. linux 没有iptables文件的解决办法
   https://blog.csdn.net/inflaRunAs/article/details/90269563
    
4. linux 安装mysql5.7.24
   https://blog.csdn.net/inflaRunAs/article/details/90268742
    
5. Linux上传文件时，winSCP报错误码3
   https://blog.csdn.net/inflaRunAs/article/details/90268188
    
6. find: ‘/run/user/1000/gvfs’: 权限不够 的解决办法
   https://blog.csdn.net/inflaRunAs/article/details/90267318
    
7. VMwear安装Centos7超详细过程
   https://blog.csdn.net/inflaRunAs/article/details/90212018
    
8. linux命令：kill和kill -9区别
   https://blog.csdn.net/inflaRunAs/article/details/88677618
    

9. Linux相关：Linux环境下安装 JDK1.8 和 Tomcat8
   https://blog.csdn.net/qq_39740187/article/details/80310549
    

10. Centos 7.4系统Filebeat + Kafka + ELK 日志收集系统
    https://idc.wanyunshuju.com/ek/706.html

---

算法

1. 快速排序
   https://blog.csdn.net/inflaRunAs/article/details/103680214
    
2. 选择排序
   https://blog.csdn.net/inflaRunAs/article/details/103680043
    
3. 冒泡排序
   https://blog.csdn.net/inflaRunAs/article/details/103678950
    
4. 二分查找
   https://blog.csdn.net/inflaRunAs/article/details/102687543

---

项目

1. 窗体工程（一）创建一个简单的windows窗口，利用Frame类
   https://blog.csdn.net/inflaRunAs/article/details/103514140
    
2. 窗体工程（二）java 使用idea将工程打成jar并创建成exe文件类型执行
   https://blog.csdn.net/inflaRunAs/article/details/90519019
    
3. 窗体工程（三）java idea打jar包，并生成可执行的exe
   https://blog.csdn.net/inflaRunAs/article/details/91855454
    
4. 阿里云 oss服务器文件上传 java
   https://blog.csdn.net/inflaRunAs/article/details/101274949
    
5. 工具类：读excel 入到库里面（1）
   https://blog.csdn.net/inflaRunAs/article/details/100101621
    
6. 工具类：读excel 入到库里面（2）
   https://blog.csdn.net/inflaRunAs/article/details/100101719
    
7. 工具类：读excel 入到库里面（3）
   https://blog.csdn.net/inflaRunAs/article/details/100134688
    
8. java导出Excel，类型Float及Decimal等在Excel中：10000000显示为1.0E7
   https://blog.csdn.net/inflaRunAs/article/details/86607518
    
9. 【项目】MD5工具类
   https://blog.csdn.net/inflaRunAs/article/details/100101010
    
10. 【项目】jsonobject工具类
    https://blog.csdn.net/inflaRunAs/article/details/100100946
     
11. 【项目】http 发送工具类
    https://blog.csdn.net/inflaRunAs/article/details/100100900
     
12. 【项目】时间相关util
    https://blog.csdn.net/inflaRunAs/article/details/100100857
     
13. 【项目】业务上的时间段相关util
    https://blog.csdn.net/inflaRunAs/article/details/100100786
14. BeanUtils.copyProperties(studentRecord,recordApply);
    https://blog.csdn.net/inflaRunAs/article/details/100100098
     
15. 【项目】时间戳 转换 星期几
    https://blog.csdn.net/inflaRunAs/article/details/100100581
     
16. java 时间戳 获得 星期几 and 日期 获得 星期几
    https://blog.csdn.net/inflaRunAs/article/details/89843268
     
17. java 时间戳 与 日期字符串 的相互转换
    https://blog.csdn.net/inflaRunAs/article/details/89843139
     
18. Java 日期 转换 星期几
    https://blog.csdn.net/inflaRunAs/article/details/89842875
     
19. mybatis 向数据库存储json格式数据
    https://blog.csdn.net/inflaRunAs/article/details/99588535
     
20. mybatis 数据库json数据，返回时，不返回字符串格式，而是返回json格式
    https://blog.csdn.net/inflaRunAs/article/details/99587850
     
21. Java 日期Date类型 加减运算
    https://blog.csdn.net/inflaRunAs/article/details/100136165
     
22. 【Http访问工具类】基于HttpClient4.5.1实现 --（1）
    https://blog.csdn.net/inflaRunAs/article/details/90521349
     
23. 【Http访问工具类】HttpClient模拟get，post请求并发送请求参数（json等） --（2）
    https://blog.csdn.net/inflaRunAs/article/details/100136116
     
24. Java:后台发送请求,请求方式（post/get）工具类：
    https://blog.csdn.net/inflaRunAs/article/details/86571873
     
25. BigDecimal加减乘除计算
    https://blog.csdn.net/inflaRunAs/article/details/100133265
     
26. java 随机数 产生的三种方法
    https://blog.csdn.net/inflaRunAs/article/details/93760372
     
27. 爬虫 初体验（爬取小说）
    https://blog.csdn.net/inflaRunAs/article/details/92652752
     
28. java最简单实现Log打印和生成日志文件
    https://blog.csdn.net/inflaRunAs/article/details/90520364
     
29. 百度Java 根据经纬坐标，计算距离 并排序（正排，倒排）
    https://blog.csdn.net/inflaRunAs/article/details/89676596
     
30. String 的工具方法整理
    https://blog.csdn.net/inflaRunAs/article/details/89676422
     
31. 代码生成工具：mybatis generator（未整理）
    https://blog.csdn.net/inflaRunAs/article/details/86582197
     
32. java 比较两个日期的 大小 或 先后
    https://blog.csdn.net/inflaRunAs/article/details/86510861
     
33. JAVA获取当天时间是周几
    https://blog.csdn.net/m0_38073349/article/details/88036051
     

34. Java 根据 IP 地址来获取 位置 -- 使用 ip2region
    https://blog.csdn.net/weixin_42144379/article/details/84900446

35. SSM上传图片并保存图片地址到数据库
    https://www.jianshu.com/p/4d5dc6a3143f

---

缓存

1. spring缓存注解：@Cacheable、@CacheEvict、@CachePut
   https://www.cnblogs.com/fashflying/p/6908028.html

---

其他

1. 如何将b站上的视频下载到本地
   https://blog.csdn.net/inflaRunAs/article/details/104738033
    
2. 如何将b站上的视频下载到本地
   https://v.urlgot.cn/
    
3. win10 alt+tab 切换任务 卡顿
   https://blog.csdn.net/inflaRunAs/article/details/103385314
    
4. 清理maven仓库 删除库中的LastUpdated文件
   https://blog.csdn.net/inflaRunAs/article/details/93974965
    
5. git 本地项目 上传 到 码云
   https://blog.csdn.net/inflaRunAs/article/details/92783707
    
6. Mybatis 插件 free mybatis plugin ，关联dao层和mapper层
   https://blog.csdn.net/inflaRunAs/article/details/90208905
    
7. maven发布jar到本地仓库
   https://blog.csdn.net/inflaRunAs/article/details/89604943
    
8. typora markdown文件转存word及html等其他类型
   https://blog.csdn.net/inflaRunAs/article/details/88995423
    
9. SourceTree的基本使用
   https://blog.csdn.net/inflaRunAs/article/details/88794646
    
10. FreeMarker和JSP各自优缺点对比
    https://blog.csdn.net/inflaRunAs/article/details/88677640
     
11. jsp 3大指令
    https://blog.csdn.net/inflaRunAs/article/details/88630368
     
12. 解析xml的四种方式
    https://blog.csdn.net/inflaRunAs/article/details/88544134
     
13. js判断字符串是否为空
    https://blog.csdn.net/inflaRunAs/article/details/86609270
     
14. ExtJS gridPanel因数据字段id值相同而显示不全的解决方法
    https://blog.csdn.net/inflaRunAs/article/details/85318934
     
15. Extjs 实现下拉框多选
    https://blog.csdn.net/inflaRunAs/article/details/84069968
     
16. Ext_数字输入框_Ext.form.NumberField 正则属性梳理
    https://blog.csdn.net/inflaRunAs/article/details/84033618
     
17. Extjs 动态设置组件的隐藏和显示，以及动态设置emptyText值
    https://blog.csdn.net/inflaRunAs/article/details/83899938
     
18. ExtJs 文本框的正则表达式验证Regex
    https://blog.csdn.net/inflaRunAs/article/details/83785935
     
19. js 毫秒数 与 日期 相互转换
    https://blog.csdn.net/inflaRunAs/article/details/83379348
     
20. angularJs报错： [ng:areq]
    https://blog.csdn.net/inflaRunAs/article/details/8146132
     
21. 启动U盘
    https://baijiahao.baidu.com/s?id=1589007910219344875&wfr=spider&for=pc
     
22. win8镜像
    http://m.xitongcheng.com/win8/ylmf_xiazai_4652.html
     
23. Java反编译工具 JD-GUI
    https://www.cnblogs.com/EasonJim/p/7788659.html

---

maven

1. maven的循环依赖及解决办法（一）
   https://blog.csdn.net/inflaRunAs/article/details/88677430
    
2. maven的循环依赖（二）更加详细
   https://blog.csdn.net/inflaRunAs/article/details/88677439
    
3. Maven打包报错：Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile
   https://blog.csdn.net/inflaRunAs/article/details/86497143

---

dubbo + zookeeper

1. dubbo面试题、基本原理、核心配置
   https://baijiahao.baidu.com/s?id=1601781224676099887&wfr=spider&for=pc

---

Struts2

1. 使用Struts2写的接口实现接收json格式的数据
   https://blog.csdn.net/inflaRunAs/article/details/86522848
    
2. Servlet报错：java.lang.IllegalStateException: Cannot forward after response has been committe
   https://blog.csdn.net/inflaRunAs/article/details/86505188

---

vscode + vue

1. 搭建 vue
   https://blog.csdn.net/inflaRunAs/article/details/105294132
   https://www.cnblogs.com/xuyangblog/p/10808498.html
    
2. 'cnpm' 不是内部或外部命令，也不是可运行的程序 或批处理文件。
   https://blog.csdn.net/pengyujuan/article/details/103693369
    
3. vue常用插件
   https://www.cnblogs.com/parry/p/vscode_top_ten_plugins.html
    
4. 创建简单的vue项目
   https://www.cnblogs.com/haitaoli/p/10304193.html
   https://www.cnblogs.com/caoxueying2018/p/9678998.html
    
5. vscode的vue项目 添加bootstarp
   https://www.cnblogs.com/wulicute-TS/p/11864395.html
    
6. vscode 搭建vue项目 使用axios（ajax）
   https://blog.csdn.net/inflaRunAs/article/details/105461541
    
7. vscode下载项目，运行
   先执行  npm install  或 cnpm install
    
8. cnpm : 无法加载文件 D:\Program Files (x86)\nodejs\cnpm.ps1，因为在此系统上禁止运行脚本。有关详细信息，请参
   https://blog.csdn.net/inflaRunAs/article/details/105444196
    

9. vue报错：This relative module was not found * ../vue-temp/vue-editor-bridge
   https://blog.csdn.net/inflaRunAs/article/details/105444623

10. vue组件
    https://www.runoob.com/vue2/vue-tutorial.html

11. vue 使用el 实现轮播图 active问题
    https://blog.csdn.net/inflaRunAs/article/details/105626698

12. idea整合vue
    https://www.jianshu.com/p/9c1d4f8ed068