39 lines
1.3 KiB
C#
39 lines
1.3 KiB
C#
using System.Security.Claims;
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using System.Text;
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using Microsoft.IdentityModel.Tokens;
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using System.IdentityModel.Tokens.Jwt;
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using Microsoft.AspNetCore.Authentication.JwtBearer;
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using Microsoft.EntityFrameworkCore.Metadata.Internal;
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namespace CompetitionAPI
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{
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public class TokenService
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{
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private readonly string _secretKey;
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private readonly string _issuer;
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public TokenService(string secretKey, string issuer)
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{
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_secretKey = secretKey;
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_issuer = issuer;
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}
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public string GenerateToken(string userId)
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{
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var tokenHandler = new JwtSecurityTokenHandler();
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var key = Encoding.ASCII.GetBytes(_secretKey);
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var tokenDescriptor = new SecurityTokenDescriptor
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{
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Subject = new ClaimsIdentity(new[] { new Claim("userId", userId) }),
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Expires = DateTime.UtcNow.AddHours(3), // Token 过期时间
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Issuer = _issuer,
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SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)
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};
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//注意：使用高版本下面这行代码会报错
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var token = tokenHandler.CreateToken(tokenDescriptor);
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var tokenString = tokenHandler.WriteToken(token);
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return tokenString;
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}
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}
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}
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