"github.com/go-redis/redis" GEOPOS函数
时间: 2023-09-26 12:09:35 浏览: 50
GEOPOS函数是Redis中用于获取地理位置信息的函数。它的作用是根据给定的key和member来获取该成员的经纬度坐标。在Go语言中,可以通过使用go-redis库中的Client结构体的GeoPos方法来调用该函数,示例代码如下:
```
client := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
// 获取成员的经纬度坐标
result, err := client.GeoPos("mygeo", "member1").Result()
if err != nil {
panic(err)
}
fmt.Printf("%v\n", result)
```
其中,mygeo表示存储地理位置信息的key,member1表示要获取信息的成员。调用结果会返回一个包含经纬度坐标的数组,如:`[&{116.3913 39.9042}]`。
相关问题
使用github.com/go-redis/redis包里的GeoRadius函数
Go语言中也可以使用github.com/go-redis/redis包里的GeoRadius函数来实现根据经纬度和半径获取地理位置信息的功能。该函数的参数与redis命令的参数基本一致,包括:key、longitude、latitude、radius、unit、以及可选参数(例如是否只返回距离信息、是否按距离排序等)。以下是一个简单的使用示例:
```go
import (
"github.com/go-redis/redis"
)
func main() {
//连接Redis数据库
client := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
//设置中心点经纬度
longitude := 116.397128
latitude := 39.916527
//设置半径和单位(单位可以是米、千米、英里等)
radius := redis.GeoRadiusQuery{
Radius: 1000,
Unit: "m",
}
//设置可选参数
options := redis.GeoRadiusCmd{
WithDist: true,
WithCoord: true,
Count: 10,
Sort: "ASC",
}
//调用GeoRadius函数并获取结果
results, err := client.GeoRadius("mylocations", longitude, latitude, &radius).WithGeoHash().WithDist().WithCoord().WithCount(10).SortAsc().Result()
if err != nil {
fmt.Println("GeoRadius error", err)
return
}
//遍历结果并输出
for _, result := range results {
locationName := result.Name
locationDist := result.Dist
locationCoord := result.GeoHash
fmt.Println(locationName, locationDist, locationCoord)
}
}
```
需要注意的是,使用该包时需要先在Go module中导入github.com/go-redis/redis包,然后在代码中引入该包,并通过NewClient函数创建一个Redis客户端。在调用GeoRadius函数时,需要使用GeoRadiusQuery和GeoRadiusCmd类型的变量来设置半径、单位以及可选参数等信息。最后的结果可以使用Result函数来获取,返回的是一个GeoLocation类型的slice。
goroutine 52 [select]: github.com/go-sql-driver/mysql.(*mysqlConn).startWatcher.func1() D:/Program Files (x86)/Go/bin/pkg/mod/github.com/go-sql-driver/mysql@v1.7.1/connection.go:614 +0xaf created by github.com/go-sql-driver/mysql.(*mysqlConn).startWatcher D:/Program Files (x86)/Go/bin/pkg/mod/github.com/go-sql-driver/mysql@v1.7.1/connection.go:611 +0x10a goroutine 83 [select]: github.com/go-redis/redis/v8/internal/pool.(*ConnPool).reaper(0x12f262a0, 0xdf8475800) D:/Program Files (x86)/Go/bin/pkg/mod/github.com/go-redis/redis/v8@v8.11.5/internal/pool/pool.go:485 +0xd6 created by github.com/go-redis/redis/v8/internal/pool.NewConnPool D:/Program Files (x86)/Go/bin/pkg/mod/github.com/go-redis/redis/v8@v8.11.5/internal/pool/pool.go:111 +0x242 goroutine 85 [chan receive]: go-study/models.sendProc(0x12e40cf0) D:/go/go-study/models/Message.go:88 +0x48 created by go-study/models.Chat D:/go/go-study/models/Message.go:79 +0x30d goroutine 86 [IO wait]: internal/poll.runtime_pollWait(0x33340b00, 0x72) D:/Program Files (x86)/Go/src/runtime/netpoll.go:305 +0x52 internal/poll.(*pollDesc).wait(0x138f60f4, 0x72, 0x0) D:/Program Files (x86)/Go/src/internal/poll/fd_poll_runtime.go:84 +0x37 internal/poll.execIO(0x138f6014, 0xa365e0) D:/Program Files (x86)/Go/src/internal/poll/fd_windows.go:175 +0xfc internal/poll.(*FD).Read(0x138f6000, {0x12f41000, 0x1000, 0x1000}) D:/Program Files (x86)/Go/src/internal/poll/fd_windows.go:441 +0x13b net.(*netFD).Read(0x138f6000, {0x12f41000, 0x1000, 0x1000}) D:/Program Files (x86)/Go/src/net/fd_posix.go:55 +0x3f net.(*conn).Read(0x12c0aa68, {0x12f41000, 0x1000, 0x1000}) D:/Program Files (x86)/Go/src/net/net.go:183 +0x4f bufio.(*Reader).fill(0x12d1eae0) D:/Program Files (x86)/Go/src/bufio/bufio.go:106 +0xe9 bufio.(*Reader).Peek(0x12d1eae0, 0x2) D:/Program Files (x86)/Go/src/bufio/bufio.go:144 +0x6d github.com/gorilla/websocket.(*Conn).read(0x12f68000, 0x2) D:/Program Files (x86)/Go/bin/pkg/mod/github.com/gorilla/websocket@v1.5.0/conn.go:371 +0x30 github.com/gorilla/websocket.(*Conn).advanceFrame(0x12f68000) D:/Program Files (x86)/Go/bin/pkg/mod/github.com/gorilla/websocket@v1.5.0/conn.go:809 +0xae github.com/gorilla/websocket.(*Conn).NextReader(0x12f68000) D:/Program Files (x86)/Go/bin/pkg/mod/github.com/gorilla/websocket@v1.5.0/conn.go:1009 +0xb5 github.com/gorilla/websocket.(*Conn).ReadMessage(0x12f68000) D:/Program Files (x86)/Go/bin/pkg/mod/github.com/gorilla/websocket@v1.5.0/conn.go:1093 +0x25 go-study/models.recvProc(0x12e40cf0) D:/go/go-study/models/Message.go:100 +0x105 created by go-study/models.Chat D:/go/go-study/models/Message.go:81 +0x352
这是一个 Go 语言的错误堆栈信息,包含多个 goroutine 的状态信息。每个 goroutine 都是 Go 语言运行时管理的并发执行单元。堆栈信息中展示了每个 goroutine 的调用栈信息,也就是该 goroutine 执行的函数调用链。其中包含了很多 Go 语言标准库和第三方库的函数调用信息,以及这些函数的执行状态。要定位问题,需要结合具体的业务逻辑和代码来分析这些信息。