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|
|
| namespace WIDESEAWCS_SignalR;
|
| /// <summary>
| /// 用户ID提供器
| /// </summary>
| public class UserIdProvider : IUserIdProvider
| {
| public string GetUserId(HubConnectionContext connection)
| {
| var token = connection.GetHttpContext().Request.Query["access_token"];//获取token
| var userId = JwtHelper.GetUserId(token);//解析token
| if (userId > 0)//如果不为空
| return $"{userId}_{CreateLetterAndNumber(5)}";//返回用户ID
| else
| return connection.ConnectionId;
| }
|
| /// <summary>
| /// 生成随机字母和数字随机数
| /// </summary>
| /// <param name="Length">生成长度</param>
| /// <returns></returns>
| public static string CreateLetterAndNumber(int Length)
| {
| char[] array = new char[62]
| {
| 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
| 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
| 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
| 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
| 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
| 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7',
| '8', '9'
| };
| string text = "";
| int maxValue = array.Length;
| Random random = new Random((int)(~DateTime.Now.Ticks));
| for (int i = 0; i < Length; i++)
| {
| int num = random.Next(0, maxValue);
| text += array[num];
| }
|
| return text;
| }
| }
|
|
