.net core 学习小结之 PostMan报415

首先415的官方解释是：对于当前请求的方法和所请求的资源，请求中提交的实体并不是服务器中所支持的格式，因此请求被拒绝。
也就是说我所准备的数据格式并不是后台代码使用的数据格式

后台代码如下

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

namespace JwtAuth.Controllers
{
    using System.Security.Claims;
    using Microsoft.Extensions.Options;
    using Microsoft.IdentityModel.Tokens;
    using Microsoft.AspNetCore.Authentication.JwtBearer;
    //添加dll的引用 Nuget Microsoft.AspNetCore.Authentication.JwtBearer;
    using System.IdentityModel.Tokens.Jwt;
     [Route("api/[controller]")]
    public class AuthController : Controller
    {
        public JwtSettings settings;
        public AuthController(IOptions<JwtSettings> jwtsettings)
        {
            settings = jwtsettings.Value;
        }
        [HttpPost]
        public IActionResult Token([FromBody]LoginInfo model)
        {
            if (ModelState.IsValid)
            {
                if (model.username == "cyao" && model.password == "123456")
                {
                    //用户合法情况
                    //添加授权信息
                    var claims = new Claim[] { new Claim(ClaimTypes.Name, "cyao"), new Claim(ClaimTypes.Role, "admin") };
                    var key = new SymmetricSecurityKey(System.Text.Encoding.UTF8.GetBytes(settings.SecretKey));
                    var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
                    var token = new JwtSecurityToken(
                        settings.Issuer,
                        settings.Audience,
                        claims,
                        DateTime.Now,
                        DateTime.Now.AddMinutes(30),//过期时间
                        creds);
                    return Ok(new { token = new JwtSecurityTokenHandler().WriteToken(token) });
                }
            }
            return BadRequest();
        }
    }
    public class LoginInfo
    {
        [Required]
        public string username { get; set; }
        [Required]
        public string password { get; set; }
    }
}