Golang’s Superior Cache Solution to Memcached and Redis

0 redis安装请参考Redis备忘录

1. golang操作redis

切换到golang工作目录，新建项目redis，然后建立连接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

编辑redis-conn.go文件，即

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

键入以下代码

package main

import (
	"fmt"
	"github.com/go-redis/redis"
)

func main() {
	fmt.Println("golang连接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)

}

执行以上程序

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

没有报错，表示连接redis成功！！！

1.1 添加键值

通过golang设置redis键值前，请先通过redis shell查询下是否存在

[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)

很好键golang并不存在，返回nil

然后通过golang添加键值

package main

import (
	"fmt"
	"github.com/go-redis/redis"
)

func main() {
	fmt.Println("golang连接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)
        
        //添加键值对
        err = client.Set("golang", "yes", 0).Err()
        if err != nil {
            fmt.Println(err)
        }
        fmt.Println("键golang设置成功")
}

执行以上代码

[root@master redis]# go run redis-conn.go 
golang连接redis
PONG <nil>
键golang设置成功

最后通过shell 查看是否键是否设置成功

[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"

结果表明通golang设置的键golang的值为yes生效了！！！

1.2 获取键值

获取1.1设置的键值


import (
	"fmt"
	"github.com/go-redis/redis"
)

func main() {
	fmt.Println("golang连接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)
        
         
        //添加键值对
        err = client.Set("golang", "yes", 0).Err()
        if err != nil {
            fmt.Println(err)
        }
        fmt.Println("键golang设置成功")
       
         //通过键查询值
         val, err := client.Get("golang").Result()
        if err != nil {
          fmt.Println(err)
        }

       fmt.Println("键golang的值为: ",val)

}

执行程序，输出结果

[root@master redis]# go run redis-conn.go 
golang连接redis
PONG <nil>
键golang设置成功
键golang的值为:  yes

其他特性自行发挥！！！

dongguagming github

后续会慢慢上传其他资料。

参考：

Golang’s Superior Cache Solution to Memcached and Redis
Getting Started with Redis and Go - Tutorial
How to Use Redis Go Client go-redis/redis with GoLang
Golang: Redis cluster client example
go-redisでのRedisデータ型の扱い方
Golang / Go Crash Course 08 | Using Redis as A Cache for our REST API https://m.youtube.com/watch?v=x5GGLrTuQCA
使用 Go 语言读写Redis协议，
Distributed Locks using Golang and Redis