go-redis/cmd-geo.go

package main

import (
	"context"
	"fmt"
	"github.com/go-redis/redis/v9"
)

func main() {

	// 添加和获取信息
	//geoAddGet()

	// 搜索地点成员
	geoSearch()
}

func geoSearch() {
	opt, err := redis.ParseURL("redis://default:yourPassword@192.168.157.135:6379/0?dial_timeout=1")
	if err != nil {
		panic(err)
	}

	client := redis.NewClient(opt)
	ctx := context.Background()
	client.Del(ctx, "cities")
	cities := []*redis.GeoLocation{
		{Name: "changsha", Longitude: 113.00000, Latitude: 28.21667},
		{Name: "beijing", Longitude: 116.41667, Latitude: 39.91667},
		{Name: "shanghai", Longitude: 121.43333, Latitude: 34.50000},
		{Name: "guangzhou", Longitude: 113.23333, Latitude: 23.16667},
		{Name: "shenzhen", Longitude: 114.06667, Latitude: 22.61667},
		{Name: "tianjin", Longitude: 117.20000, Latitude: 39.13333},
		{Name: "hangzhou", Longitude: 120.20000, Latitude: 30.26667},
		{Name: "chengdu", Longitude: 104.06667, Latitude: 30.66667},
		{Name: "xian", Longitude: 108.95000, Latitude: 34.26667},
		{Name: "changchun", Longitude: 125.35000, Latitude: 43.88333},
		{Name: "wulumuqi", Longitude: 87.68333, Latitude: 43.76667},
	}
	client.GeoAdd(ctx, "cities", cities...).Result()

	// 搜索某个距离成员距离范围的其他成员
	// 一，圆的范围，使用成员确定圆心
	fmt.Println(client.GeoSearch(ctx, "cities", &redis.GeoSearchQuery{
		Member:     "hangzhou",
		Radius:     1000,
		RadiusUnit: "km",
	}).Result())
	// 可以返回 坐标、距离和Hash
	fmt.Println(client.GeoSearchLocation(ctx, "cities", &redis.GeoSearchLocationQuery{
		GeoSearchQuery: redis.GeoSearchQuery{
			Member:     "hangzhou",
			Radius:     1000,
			RadiusUnit: "km",
		},
		WithCoord: true,
		WithDist:  true,
		WithHash:  true,
	}).Result())

	// 二，圆的范围，使用坐标确定圆心
	fmt.Println(client.GeoSearch(ctx, "cities", &redis.GeoSearchQuery{
		Longitude:  120.20000,
		Latitude:   30.26667,
		Radius:     1000,
		RadiusUnit: "km",
	}).Result())

	// 三，矩形的范围，使用坐标（成员）确定中心
	fmt.Println(client.GeoSearch(ctx, "cities", &redis.GeoSearchQuery{
		Member: "hangzhou",
		// OR
		//Longitude:  120.20000,
		//Latitude:   30.26667,

		// 宽高
		BoxWidth:  1000,
		BoxHeight: 1000,
		BoxUnit:   "km",
	}).Result())

	// 四，搜素结果过滤
	// 可以返回 坐标、距离和Hash
	fmt.Println(client.GeoSearchLocation(ctx, "cities", &redis.GeoSearchLocationQuery{
		GeoSearchQuery: redis.GeoSearchQuery{
			Member:     "hangzhou",
			Radius:     1000,
			RadiusUnit: "km",
		},
		WithCoord: true,
		WithDist:  true,
		WithHash:  true,
	}).Result())

	fmt.Println(client.GeoSearchLocation(ctx, "cities", &redis.GeoSearchLocationQuery{
		GeoSearchQuery: redis.GeoSearchQuery{
			Member:     "hangzhou",
			Radius:     1000,
			RadiusUnit: "km",

			//Sort:  "DESC", // ASC, DESC
			Count:    2,
			CountAny: true,
		},
		WithCoord: true,
		WithDist:  true,
		WithHash:  true,
	}).Result())

}

func geoAddGet() {
	opt, err := redis.ParseURL("redis://default:yourPassword@192.168.157.135:6379/0?dial_timeout=1")
	if err != nil {
		panic(err)
	}

	client := redis.NewClient(opt)
	ctx := context.Background()

	//client.Del(ctx, "cities")

	// 添加
	fmt.Println(client.GeoAdd(ctx, "cities", &redis.GeoLocation{
		Name:      "changsha",
		Longitude: 113.00001,
		Latitude:  28.21667,
	}).Result())

	cities := []*redis.GeoLocation{
		{Name: "changsha", Longitude: 113.00000, Latitude: 28.21667},
		{Name: "beijing", Longitude: 116.41667, Latitude: 39.91667},
		{Name: "shanghai", Longitude: 121.43333, Latitude: 34.50000},
		{Name: "guangzhou", Longitude: 113.23333, Latitude: 23.16667},
		{Name: "shenzhen", Longitude: 114.06667, Latitude: 22.61667},
		{Name: "tianjin", Longitude: 117.20000, Latitude: 39.13333},
		{Name: "hangzhou", Longitude: 120.20000, Latitude: 30.26667},
		{Name: "chengdu", Longitude: 104.06667, Latitude: 30.66667},
		{Name: "xian", Longitude: 108.95000, Latitude: 34.26667},
		{Name: "changchun", Longitude: 125.35000, Latitude: 43.88333},
		{Name: "wulumuqi", Longitude: 87.68333, Latitude: 43.76667},
	}
	fmt.Println(client.GeoAdd(ctx, "cities", cities...).Result())

	// 获取信息
	// 获取坐标
	poses, _ := client.GeoPos(ctx, "cities", "changsha", "beijing").Result()
	for _, pos := range poses {
		fmt.Println(pos)
	}
	// 获取 geohash 位置
	fmt.Println(client.GeoHash(ctx, "cities", "changsha", "beijing").Result())

	// 获取距离
	fmt.Println(client.GeoDist(ctx, "cities", "changsha", "beijing", "km").Result()) // m km mi ft

}