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table-redis

v1.0.4

Published

mysql table data redis cache tool

Downloads

4

Readme

tableRedis

mysql table data redis cache tool

作用分析

  • 作为服务器研发,缓存的使用很重要,写逻辑的时候总会去考虑什么地方加缓存,什么地方删缓存.
  • 不可多加,更不可少加.经验不足的工程师往往会因为缓存的考虑不周而导致很奇怪的bug.
  • 为了避免不必要的bug和增加研发的速度,某写了一个缓存的工具类.
  • 游戏研发中的数据结构很有意思,playerId是几乎所有用户表的外键.那么,
  • 该工具类就根据这个特点,采用了根据外键缓存到redis中,再加上一些方法,提供CRUD的接口,该工具类就完成了.
  • 注:目前仅支持list格式,其他格式的文件已经添加,相应的方法还未实现,如有需求者可自行在对应的js中添加相应的方法即可使用.
  • 但游戏中的数据并非所有都具有这个特点,其它情况可调用getRedisClient方法获得redis客户端自行存储.

依赖

"dependencies": {
		"redis": "^2.8.0"
}

pomelo配置

1.安装, 进入项目目录的game-server

npm install table-redis --save

2.建立自己表的结构和缓存方式的excel,我已在excelDemo中提交示例的excel. 建立好excel后用倒表工具导出json,并记住json位置.

3.进入config文件夹,创建talbeRedis文件夹,进入tableRedis文件夹,创建redis.json.

{
  "redis" : {
    "host" : "192.168.1.xxx",
    "port" : 6379,
    "tableForRedis":"/app/data/json/tableForRedis"	// 缓存配置的json
  }
}

4.在app.js中的服务配置中添加如下代码

app.use(TableRedis, require(app.getBase() + "/config/tableRedis/redis.json"));

方法支持

缓存数据,参数toSet支持数组

  • @param {string} tableName 表名
  • @param {(object|array)} toSet 将要设置缓存的数据(单条或多条)
  • @param {number} [expire] 缓存过期时间(秒)
addRedisCache = function(tableName, toSet, expire, cb)

获取缓存数据

  • @param tableName
  • @param priValue 主键不为0,则获取主键对应数据,否则获取外键对应数据
  • @param forValue
getRedisCache = function(tableName, priValue, forValue, cb)

更新数据

  • @param {number} [expire] 缓存过期时间(秒)
updateRedisCache = function(tableName, json, expire, cb)

删除缓存

  • @param priValue 主键不为0,则删除主键对应数据,否则删除外键对应数据
removeRedisCache = function(tableName, priValue, forValue, cb)

根据根表和根表主键值,删除其和其下相关的数据缓存.(玩家下线时调用)

removeCacheByFather = function(tableName, priValue, forValue, cb)

获得redis客户端

getRedisClient = function()

执行lua脚本(附加功能,实际项目中没怎么用过)

runLua(lua, paramNum, keysArray, paramsArray, cb)