static void Main(string[] args)
{
using (ConnectionMultiplexer redis = ConnectionMultiplexer.Connect("127.0.0.1:6379"))
{
IDatabase db = redis.GetDatabase();
//向Redis数据库中插入geo类型数据
//下面插入的兴趣点是商店，
//最后一个参数中的”1”、”2”是点的主键，点的名称、地址、电话等存到其他表中
//db.GeoAdd("ShopsGeo", new GeoEntry(116.34039, 39.94218, "1"));
//db.GeoAdd("ShopsGeo", new GeoEntry(116.340934, 39.942221, "2"));
//db.GeoAdd("ShopsGeo", new GeoEntry(116.341082, 39.941025, "3"));
//db.GeoAdd("ShopsGeo", new GeoEntry(116.340848, 39.937758, "4"));
//db.GeoAdd("ShopsGeo", new GeoEntry(116.342982, 39.937325, "5"));
//db.GeoAdd("ShopsGeo", new GeoEntry(116.340866, 39.936827, "6"));
//上面的插入数据的方式需要连接Redis服务器多次，下面只需要一次，注意这样可以提高性能
GeoEntry[] geos = new GeoEntry[]
{
new GeoEntry(116.34039, 39.94218, "1"),
new GeoEntry(116.340934, 39.942221, "2"),
new GeoEntry(116.341082, 39.941025, "3"),
new GeoEntry(116.340848, 39.937758, "4"),
new GeoEntry(116.342982, 39.937325, "5"),
new GeoEntry(116.340866, 39.936827, "6")
};
//计算两点之间的距离
//查询key为"ShopsGeo"中“1”点和“2”点的距离
double?dist = db.GeoDistance("ShopsGeo", "1", "2", GeoUnit.Kilometers);
//查询某个点周围一定半径的兴趣点
//以“1”点为中心，半径200米中的兴趣点
//当然也可以以某个经纬度为中心点
//GeoRadiusResult[] items = db.GeoRadius("ShopsGeo",34.59669,119.22295, 200, GeoUnit.Meters);
GeoRadiusResult[] items = db.GeoRadius("ShopsGeo", "1", 200, GeoUnit.Meters);
foreach (var item in items)
{
Console.WriteLine($"距离{item.Member}点，有{item.Distance}米");
}
Console.ReadKey();
}
}
/// <summary>
/// Adds the specified geospatial members (latitude, longitude, object) to the specified key.
/// </summary>
/// <typeparam name="T">The member type</typeparam>
/// <param name="key">The redis key.</param>
/// <param name="members">The members to add.</param>
/// <param name="tags">The tags to relate to the members.</param>
/// <returns>The number of elements added to the sorted set, not including elements already existing.</returns>
public int GeoAdd <T>(string key, GeoMember <T>[] members, string[] tags = null)
{
var db = RedisConnection.GetDatabase();
var values = new GeoEntry[members.Length];
for (int i = 0; i < values.Length; i++)
{
var member = members[i];
values[i] = new GeoEntry(member.Position.Longitude, member.Position.Latitude, Serializer.Serialize(member.Value));
}
int result = (int)db.GeoAdd(key, values);
// Relate the tags (if any)
if (tags != null && tags.Length > 0)
{
foreach (var member in members)
{
_cacheProvider.AddTagsToSetMember(key, member.Value, tags);
}
}
return(result);
}
public Task <bool> GeoAddAsync(RedisKey key, GeoEntry value, CommandFlags flags = CommandFlags.None) => Inner.GeoAddAsync(ToInner(key), value, flags);
public bool GeoAdd(RedisKey key, GeoEntry value, CommandFlags flags = CommandFlags.None)
{
return(Inner.GeoAdd(ToInner(key), value, flags));
}
/// <summary>
/// 增加 GeoHash 批处理
/// </summary>
/// <example>
/// var batch = database.CreateBatch();
/// set.BatchAdd(batch,entry);
/// batch.Execute();
/// </example>
/// <param name="batch"></param>
/// <param name="entry"></param>
/// <returns></returns>
Task IBatchGeoHashSet <TKey> .BatchAdd(IBatch batch, GeoEntry entry)
{
return(batch.GeoAddAsync(SetKey, entry));
}
/// <summary>
/// Add the specified member to the set stored at key. Specified members that are
/// already a member of this set are ignored. If key does not exist, a new set is
/// created before adding the specified members.
/// </summary>
/// <param name="entry">The geo value to store.</param>
/// <returns></returns>
async Task <bool> IAsyncGeoHashSet <TKey> .AddAsync(GeoEntry entry)
{
return(await Database.GeoAddAsync(SetKey, entry));
}
/// <summary>
/// Add the specified member to the set stored at key.
/// Specified members that are already a member of this set are ignored.
/// If key does not exist, a new set is created before adding the specified members.
/// </summary>
/// <param name="entry">The geo value to store.</param>
/// <returns></returns>
public bool Add(GeoEntry entry)
{
return(Database.GeoAdd(SetKey, entry));
}
public Task <bool> GeoAddAsync(RedisKey key, GeoEntry value, CommandFlags flags = CommandFlags.None)
{
return(this.db.GeoAddAsync(key, value, flags));
}
bool IDatabase.GeoAdd(RedisKey key, GeoEntry value, CommandFlags flags) => Multiplexer.Wait(((IDatabaseAsync)this).GeoAddAsync(key, value, flags));
/// <summary>
/// 添加一个 地理信息
/// </summary>
/// <param name="key">键</param>
/// <param name="geo">地理信息</param>
/// <returns></returns>
public bool GeoAdd(string key, GeoEntry geo)
{
return(_base.GeoAdd(key, geo));
}