Golang學習系列第七天：操做Redis

0   redis安裝請參考Redis備忘錄

1.  golang操做redis

切換到golang工做目錄，新建項目redis，而後創建鏈接redis的文件

[root@master src]# pwd /dongguangming/goworkspace/src [root@master src]# mkdir redis [root@master src]# cd redis/ [root@master redis]# touch redis-conn.go 

編輯redis-conn.go文件 ，即

[root@master redis]# vi  redis-conn.go

鍵入如下代碼

package main import ( "fmt" "github.com/go-redis/redis" ) func main() { fmt.Println("golang鏈接redis") client := redis.NewClient(&redis.Options{ Addr: "192.168.8.200:6379", Password: "123456", DB: 0, }) pong, err := client.Ping().Result() fmt.Println(pong, err) } 

執行以上程序

[root@master redis]# go run redis-conn.go golang鏈接redis PONG <nil> 

沒有報錯，表示鏈接redis成功！！！

 

1.1  添加鍵值

經過golang設置redis鍵值前，請先經過redis shell查詢下是否存在

[root@master ~]# redis-cli -h 192.168.8.200 -p 6379 -a 123456 Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe. 192.168.8.200:6379> get golang (nil) 

很好鍵golang並不存在，返回nil

而後經過golang添加鍵值

package main import ( "fmt" "github.com/go-redis/redis" ) func main() { fmt.Println("golang鏈接redis") client := redis.NewClient(&redis.Options{ Addr: "192.168.8.200:6379", Password: "123456", DB: 0, }) pong, err := client.Ping().Result() fmt.Println(pong, err) //添加鍵值對 err = client.Set("golang", "yes", 0).Err() if err != nil { fmt.Println(err) } fmt.Println("鍵golang設置成功") } 

執行以上代碼

[root@master redis]# go run redis-conn.go golang鏈接redis PONG <nil> 鍵golang設置成功 

最後經過shell 查看是否鍵是否設置成功

[root@master ~]# redis-cli  -h 192.168.8.200 -p 6379 -a 123456 Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe. 192.168.8.200:6379> get golang (nil) 192.168.8.200:6379> get golang "yes" 

結果代表通golang設置的鍵golang的值爲yes生效了！！！

 

1.2  獲取鍵值

獲取1.1設置的鍵值

import ( "fmt" "github.com/go-redis/redis" ) func main() { fmt.Println("golang鏈接redis") client := redis.NewClient(&redis.Options{ Addr: "192.168.8.200:6379", Password: "123456", DB: 0, }) pong, err := client.Ping().Result() fmt.Println(pong, err) //添加鍵值對 err = client.Set("golang", "yes", 0).Err() if err != nil { fmt.Println(err) } fmt.Println("鍵golang設置成功") //經過鍵查詢值 val, err := client.Get("golang").Result() if err != nil { fmt.Println(err) } fmt.Println("鍵golang的值爲: ",val) } 

執行程序，輸出結果

[root@master redis]# go run redis-conn.go golang鏈接redis PONG <nil> 鍵golang設置成功 鍵golang的值爲: yes 

其餘特性自行發揮！！！

 

後記： 已把個人電子書已上傳至github：https://github.com/dongguangming/dgm-collection/tree/master/%E6%95%B0%E6%8D%AE%E5%BA%93/redis

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後續會慢慢上傳其餘資料。

 

參考：

1. Golang’s Superior Cache Solution to Memcached and Redis https://www.mailgun.com/blog/golangs-superior-cache-solution-memcached-redis/

2. A tour of the Redis stars  https://www.compose.com/articles/a-tour-of-the-redis-stars-2/

3. Getting Started with Redis and Go - Tutorial https://tutorialedge.net/golang/go-redis-tutorial/

4. How to Use Redis Go Client go-redis/redis with GoLang https://kb.objectrocket.com/redis/how-to-use-redis-go-client-go-redis-redis-with-golang-592

5. Golang: Redis cluster client example https://golangbyexample.com/golang-redis-cluster-client-example/

6. go-redisでのRedisデータ型の扱い方 https://qiita.com/momotaro98/items/ed496ba06908b278e103

7.  Golang / Go Crash Course 08 | Using Redis as A Cache for our REST API https://m.youtube.com/watch?v=x5GGLrTuQCA

8. 使用 Go 語言讀寫Redis協議 https://colobu.com/2019/04/16/Reading-and-Writing-Redis-Protocol-in-Go/，https://www.redisgreen.net/blog/reading-and-writing-redis-protocol/

9. Distributed Locks using Golang and Redis https://kylewbanks.com/blog/distributed-locks-using-golang-and-redis

10. Go and Compose - Redis, RethinkDB, and RabbitMQ https://www.compose.com/articles/go-and-compose-redis-rethinkdb-and-rabbitmq/