- Created by 郭强, last modified on Jan 22, 2022
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Do
方法
我们最常用的是Do
方法,执行同步指令,通过向Redis Server
发送对应的Redis API
命令,来使用Redis Server
的服务。Do
方法最大的特点是内部自行从连接池中获取连接对象,使用完毕后自动丢回连接池中,开发者无需手动调用Close
方法,方便使用。
基本使用
package main import ( "fmt" "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/os/gctx" ) func main() { var ( ctx = gctx.New() ) v, _ := g.Redis().Do(ctx, "SET", "k", "v") fmt.Println(v.String()) }
HSET/HGETALL
操作
package main import ( "fmt" "github.com/gogf/gf/v2/container/gvar" "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/os/gctx" ) func main() { var ( err error result *gvar.Var key = "user" ctx = gctx.New() ) _, err = g.Redis().Do(ctx, "HSET", key, "id", 10000) if err != nil { panic(err) } _, err = g.Redis().Do(ctx,"HSET", key, "name", "john") if err != nil { panic(err) } result, err = g.Redis().Do(ctx,"HGETALL", key) if err != nil { panic(err) } fmt.Println(result.Map()) // May Output: // map[id:10000 name:john] }
HMSET/HMGET
操作
我们可以通过map
参数执行HMSET
操作。
package main import ( "fmt" "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/os/gctx" "github.com/gogf/gf/v2/util/gutil" ) func main() { var ( ctx = gctx.New() key = "user_100" data = g.Map{ "name": "gf", "sex": 0, "score": 100, } ) _, err := g.Redis().Do(ctx, "HMSET", append(g.Slice{key}, gutil.MapToSlice(data)...)...) if err != nil { g.Log().Fatal(ctx, err) } v, err := g.Redis().Do(ctx, "HMGET", key, "name") if err != nil { g.Log().Fatal(ctx, err) } fmt.Println(v.Slice()) // May Output: // [gf] }
我们可以通过
struct
参数执行HMSET
操作。
package main import ( "fmt" "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/os/gctx" "github.com/gogf/gf/v2/util/gutil" ) func main() { type User struct { Name string `json:"name"` Sex int `json:"sex"` Score int `json:"score"` } var ( ctx = gctx.New() key = "user_100" data = &User{ Name: "gf", Sex: 0, Score: 100, } ) _, err := g.Redis().Do(ctx,"HMSET", append(g.Slice{key}, gutil.StructToSlice(data)...)...) if err != nil { g.Log().Fatal(ctx, err) } v, err := g.Redis().Do(ctx,"HMGET", key, "name") if err != nil { g.Log().Fatal(ctx, err) } fmt.Println(v.Slice()) // May Output: // [gf] }
自动序列化/反序列化
当给定的参数为map
, slice
, struct
时,gredis
内部支持自动对其使用json
序列化,并且读取数据时可使用gvar.Var
的转换功能实现反序列化。
map
存取
package main import ( "fmt" "github.com/gogf/gf/v2/container/gvar" "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/os/gctx" ) func main() { var ( ctx = gctx.New() err error result *gvar.Var key = "user" data = g.Map{ "id": 10000, "name": "john", } ) _, err = g.Redis().Do(ctx, "SET", key, data) if err != nil { panic(err) } result, err = g.Redis().Do(ctx,"GET", key) if err != nil { panic(err) } fmt.Println(result.Map()) }
struct
存取
package main import ( "fmt" "github.com/gogf/gf/v2/container/gvar" "github.com/gogf/gf/v2/frame/g" "github.com/gogf/gf/v2/os/gctx" ) func main() { type User struct { Id int Name string } var ( ctx = gctx.New() err error result *gvar.Var key = "user" user = g.Map{ "id": 10000, "name": "john", } ) _, err = g.Redis().Do(ctx, "SET", key, user) if err != nil { panic(err) } result, err = g.Redis().Do(ctx, "GET", key) if err != nil { panic(err) } var user2 *User if err = result.Struct(&user2); err != nil { panic(err) } fmt.Println(user2.Id, user2.Name) }
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