Go语言的Redis客户端,官方推荐了两个客户端:redigo和radix.v2
安装之:
go get github.com/mediocregopher/radix.v2
go get github.com/garyburd/redigo/redis
test_redigo.go
package main
import (
"fmt"
"github.com/garyburd/redigo/redis"
"log"
)
// test common
func testCommonOperate() {
// connect redis server
c, err := redis.Dial("tcp", "127.0.0.1:6379")
if err != nil {
fmt.Println(err)
log.Fatal("connect redis-server error: ", err)
return
}
defer c.Close()
// SET
v, err := c.Do("SET", "name", "red")
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// GET
v, err = redis.String(c.Do("GET", "name"))
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// LPUSH
c.Do("lpush", "redlist", "qqq")
c.Do("lpush", "redlist", "www")
c.Do("lpush", "redlist", "eee")
// LRANGE
values, _ := redis.Values(c.Do("lrange", "redlist", "0", "100"))
for _, v := range values {
fmt.Println(string(v.([]byte)))
}
// Scan
var v1 string
redis.Scan(values, &v1)
fmt.Println(v1)
// piple line
c.Send("SET", "name", "red")
c.Send("GET", "name")
c.Flush()
c.Receive()
c.Receive()
}
func subscribe() {
c, err := redis.Dial("tcp", "127.0.0.1:6379")
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
psc := redis.PubSubConn{c}
psc.Subscribe("redChatRoom")
for {
switch v := psc.Receive().(type) {
case redis.Message:
fmt.Printf("%s: message: %s\n", v.Channel, v.Data)
case redis.Subscription:
fmt.Printf("%s: %s %d\n", v.Channel, v.Kind, v.Count)
case error:
fmt.Println(v)
return
}
}
}
func testSubscribe() {
go subscribe()
go subscribe()
go subscribe()
go subscribe()
go subscribe()
c, err := redis.Dial("tcp", "127.0.0.1:6379")
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
for {
var s string
fmt.Scanln(&s)
_, err := c.Do("PUBLISH", "redChatRoom", s)
if err != nil {
fmt.Println("pub err: ", err)
return
}
}
}
func main() {
testCommonOperate()
//testSubscribe()
}
test_radixv2.go
package main
import (
"fmt"
"github.com/mediocregopher/radix.v2/redis"
"log"
"strconv"
)
func test1() {
conn, err := redis.Dial("tcp", "localhost:6379")
if err != nil {
log.Fatal(err)
return
}
defer conn.Close()
resp := conn.Cmd("HMSET", "album:1", "title", "Electric Ladyland", "artist", "Jimi Hendrix", "price", 4.95, "likes", 8)
if resp.Err != nil {
log.Fatal(resp.Err)
}
fmt.Println("Electric Ladyland added!")
}
func test2() {
conn, err := redis.Dial("tcp", "localhost:6379")
if err != nil {
log.Fatal(err)
}
defer conn.Close()
title, err := conn.Cmd("HGET", "album:1", "title").Str()
if err != nil {
log.Fatal(err)
}
artist, err := conn.Cmd("HGET", "album:1", "artist").Str()
if err != nil {
log.Fatal(err)
}
price, err := conn.Cmd("HGET", "album:1", "price").Float64()
if err != nil {
log.Fatal(err)
}
likes, err := conn.Cmd("HGET", "album:1", "likes").Int()
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s by %s: £%.2f [%d likes]\n", title, artist, price, likes)
}
type Album struct {
Title string
Artist string
Price float64
Likes int
}
func populateAlbum(reply map[string]string) (*Album, error) {
var err error
ab := new(Album)
ab.Title = reply["title"]
ab.Artist = reply["artist"]
ab.Price, err = strconv.ParseFloat(reply["price"], 64)
if err != nil {
return nil, err
}
ab.Likes, err = strconv.Atoi(reply["likes"])
if err != nil {
return nil, err
}
return ab, nil
}
func test3() {
conn, err := redis.Dial("tcp", "localhost:6379")
if err != nil {
log.Fatal(err)
}
defer conn.Close()
reply, err := conn.Cmd("HGETALL", "album:1").Map()
if err != nil {
log.Fatal(err)
}
ab, err := populateAlbum(reply)
if err != nil {
log.Fatal(err)
}
fmt.Println(ab)
}
func main() {
test1()
//test2()
//test3()
}