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   源码介绍

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用visual studio code打开文件，运行dotnet watch run  

之后在postman里面去访问，可看到如下效果

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Authorization;
using JwtAuthSample.ViewModels;
using System.Security.Claims;
using Microsoft.IdentityModel.Tokens;
using Microsoft.Extensions.Options;
using System.Text;
using System.IdentityModel.Tokens.Jwt;
using Microsoft.Extensions.Configuration;

namespace JwtAuthSample.Controllers
{
    /* [Route("api/[controller]")] */
    public class AuthorizeController : Controller
    {   
        private JwtSettings _jwtSettings;

        public AuthorizeController(IOptions<JwtSettings> _jwtSettingsAccesser)
        {
            _jwtSettings = _jwtSettingsAccesser.Value;
        }
        /// </remarks>
        /// <param name="viewModel"></param>
        /// <returns></returns>
        [HttpPost]
        public IActionResult Token([FromBody]LoginViewModel viewModel)
        {
            if(ModelState.IsValid)
            {
                if(!(viewModel.User=="jesse" && viewModel.Password=="123456"))
                {
                    return BadRequest();
                }

                var claims = new Claim[]{
                    new Claim(ClaimTypes.Name, "jesse"),
                    new Claim(ClaimTypes.Role,"user"),
                    new Claim("SuperAdminOnly","true")
                };

                var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_jwtSettings.SecretKey));
                var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);

                var token = new JwtSecurityToken(
                    _jwtSettings.Issuer,
                    _jwtSettings.Audience,
                    claims, 
                    DateTime.Now,//开始时间
                    DateTime.Now.AddMinutes(30),//过期时间
                    creds);

                return Ok(new { token=  new JwtSecurityTokenHandler().WriteToken(token) });
            }

            return BadRequest();
        }

        //测试
        [HttpPost]
        public IEnumerable<string> test([FromBody]LoginViewModel viewModel)
        {
             if(ModelState.IsValid)
             {
                  if(!(viewModel.User=="jesse" && viewModel.Password=="123456"))
                  {
                     return new string[]{"1111","2222"};
                  }
                    return new string[]{"ssss","wwwww"};

             }
           
             return new string[]{"1111","2222"};
        }

    }
}