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README
Apache-2.0

jmedis

java版自实现redis

快速使用

jmedis-server

进入bin目录,执行如下命令启动服务端

./jmedis-server.sh jmedis.conf &

jmedis-client

进入bin目录,执行如下命令启动客户端

./jmedis-cli.sh -h 192.168.0.1

或者使用rlwrap来增强bash,支持上下左右箭头的功能。

rlwrap ./jmedis-cli.sh -h 192.168.0.1

实现功能及优化点

jmedis-server

  1. 基于nio实现多路复用器,单线程支持多个客户端
  2. 实现ping pong测试命令
  3. 加入db=16 下标支持
  4. 实现set命令
  5. 实现get命令
  6. 实现select命令
  7. 基于模板方法设计模式,抽象封装命令的校验
  8. 实现keys命令
  9. 实现exit命令
  10. 优化命令注册代码,基于reflections@Cmd注解实现自动注册
  11. 去掉reflections框架,利用反射代码解析@Cmd实现自动注册,减小服务端程序jar包容量
  12. 只引入logback做日志框架,去掉lombok,缩小服务端程序大小到842K
  13. 优化代码,修复服务器异常退出的问题
  14. 加入配置文件加载功能,有限读取配置文件值,没有则使用程序默认值。
  15. 实现密码认证及auth命令。
  16. 引入责任链模式,优化命令执行前的校验逻辑。
  17. 利用@NoAuth注解实现命令白名单。
  18. 实现echo命令。
  19. 实现dbsize命令。
  20. 实现time命令。
  21. 实现info命令,搭建好基本架构,基于sigar工具包。
127.0.0.1:8000[0]>info
# Server
tcp_port=8000
process_id=64187
jmedis_dbsize=16
os=Mac OS X x86_64 10.15.7
jmedis_version=1.0.0
java_version=1.8.0_221
jmedis_buffer_size=4096KB
config_file=/Users/mango/git/jmedis/jmedis-server/src/main/bin/jmedis.conf
uptime=2542583.0

# Clients
connected_clients=1
  1. 实现flushdb命令。
  2. 实现flushall命令。
  3. 实现字符串的append命令。
  4. 实现expire命令。
  5. 实现ttl命令。
  6. 实现定时任务ExpireTask处理过期key
  7. 任务执行时加入命令后置处理器钩子。
  8. 实现执行带@WithExpire注解的命令后,渐进式处理当前数据库里的key的过期时间。

jmedis-client

  1. 基于apache commons cli框架实现java cmd程序
  2. 基于socketChannel阻塞模式,实现jmedis client客户端
  3. 使用责任链模式处理客户端参数
  4. 使用责任链模式处理客户端到服务端命令执行
  5. 客户端支持-password预设置密码认证
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简介

java版自实现redis 展开 收起
Java 等 2 种语言
Apache-2.0
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