1：导入NuGet包 Microsoft.AspNetCore.Authentication.JwtBearer
2:配置 jwt相关信息
3：在 startUp中
1 public void ConfigureServices(IServiceCollection services){
2 #region JWT 认证
3 services
4 .AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
5 .AddJwtBearer(options => {
6 var jsonmodel = AppJsonHelper.InitJsonModel();
7 options.TokenValidationParameters = new TokenValidationParameters
8 {
9 ValidIssuer = jsonmodel.Issuer,// Configuration["JwtSetting:Issuer"],
10 ValidAudience = jsonmodel.Audience,// Configuration["JwtSetting:Audience"],
11 // IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["JwtSetting:SecurityKey"])),
12 IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jsonmodel.TockenSecrete)),
13 // 默认允许 300s 的时间偏移量，设置为0即可
14 ClockSkew = TimeSpan.Zero
15 };
16 });
17 #endregion
18 }
19
20 //注意需要放在addmvc上面 services.AddMvc();
21
22 public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
23 {
24 app.UseAuthentication();//身份验证
25 app.UseAuthorization();// 授权
26 }4:使用时在Controller /action 上打上特性 [Authorize]
可以单独在Action上打上特性[Authorize] 不需要检查授权认证的话打上特性： [AllowAnonymous]
两个特性类都在如下命名空间下：
using Microsoft.AspNetCore.Authorization;
5：登陆成功后端并返回生成的Tocken，可以在PostMan上面测试，和JWT.io官网上面来测试
6: 发送请求到后端，带上Tocken 如Get ://localhost:5000/user/login
Key value
Authorization Bearer qweTdfdsfsJhdsfd0.fdsfdsgfdsewDDQDD.fdsfdsg***
7：action上面的code
1 [HttpPost, Route("Login")]
2 public ApiResult Login(personnel p)
3 {
4 ApiResult result = new ApiResult();
5 try
6 {
7 string tockenStr = ZrfJwtHelper.GetTocken(p);
8 result.data = tockenStr;
9 result.code = statuCode.success;
10 result.message = "获取成功!";
11 }
12 catch (Exception ex)
13 {
14 result.message = "查询异常:" + ex.Message;
15 }
16 return result;
17 }
18
19
20 [HttpPost, Route("authTest")]
21 [Authorize]
22 [AllowAnonymous]// 跳过授权认证
23 public ApiResult authTest(string accesTocken)
24 {
25 ApiResult result = new ApiResult();
26 try
27 {
28 var info = ZrfJwtHelper.GetTockenInfo(accesTocken);
29 result.data = info;
30 result.code = statuCode.success;
31 result.message = "获取成功!";
32 }
33 catch (Exception ex)
34 {
35 result.message = "查询异常:" + ex.Message;
36 }
37 return result;
38 }8：完整的Jwt代码封装
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Threading.Tasks;
5 namespace ZRFCoreTestMongoDB.Commoms
6 {
7 using Microsoft.AspNetCore.Http;
8 using Microsoft.IdentityModel.Tokens;
9 using System.IdentityModel.Tokens.Jwt;
10 using System.Security.Claims;
11 using System.Text;
12 using ZRFCoreTestMongoDB.Model;
13
14 /// <summary>
15 /// @auth fengge
16 /// </summary>
17 public class ZrfJwtHelper
18 {
19 /// <summary>
20 /// 生成Tocken
21 /// </summary>
22 /// <param name="p"></param>
23 /// <returns></returns>
24 public static string GetTocken(personnel p)
25 {
26 //读取配置文件获得Jwt的json文件信息
27 var model = AppJsonHelper.InitJsonModel();
28 string _issuer = model.Issuer;//分发者
29 string audience = model.Audience;//接受者
30 string TockenSecrete = model.TockenSecrete;//秘钥
31
32 //秘钥
33 var securityKey = new SigningCredentials(new SymmetricSecurityKey(Encoding.ASCII.GetBytes(TockenSecrete)), SecurityAlgorithms.HmacSha256);
34 // 設定要加入到 JWT Token 中的聲明資訊(Claims)
35 //var claims = new List<Claim>();
36 //// 在 RFC 7519 規格中(Section#4)，總共定義了 7 個預設的 Claims，我們應該只用的到兩種！
37 ////claims.Add(new Claim(JwtRegisteredClaimNames.Iss, issuer));
38 //claims.Add(new Claim(JwtRegisteredClaimNames.Sub, userInfo.UserId));
39
40 //Claim
41 var claims = new Claim[] {
42 new Claim(JwtRegisteredClaimNames.Sid,p.Uid),
43 new Claim(JwtRegisteredClaimNames.Iss,_issuer),
44 new Claim(JwtRegisteredClaimNames.Sub,p.Name),
45 new Claim("Guid",Guid.NewGuid().ToString("D")),
46 new Claim("Roleid",p.Roleid.ToString()),
47 new Claim("Age",p.Age.ToString()),
48 new Claim("BirthDay",p.BirthDay.ToString())
49 };
50
51 SecurityToken securityToken = new JwtSecurityToken(
52 issuer: _issuer,
53 audience: audience,
54 signingCredentials: securityKey,
55 expires: DateTime.Now.AddMinutes(2),//过期时间
56 claims: claims
57 );
58
59 return new JwtSecurityTokenHandler().WriteToken(securityToken);
60 }
61
62 /// <summary>
63 /// 获取accessTocken
64 /// </summary>
65 /// <param name="context"></param>
66 /// <returns></returns>
67 public static string GetTockenString(HttpContext context)
68 {
69 return context != null ? context.Request.Headers["Authorization"].ToString() : "";
70 }
71
72 /// <summary>
73 /// 解析Jwt生成的 Tocken
74 /// </summary>
75 /// <param name="accesTocken"></param>
76 /// <returns></returns>
77 public static TockenInfo GetTockenInfo(string accesTocken)
78 {
79 try
80 {
81 if (accesTocken.Contains("Bearer")) //防止前端传过来的tocken 为待了 Bearer 的字符串
82 {
83 accesTocken = accesTocken.Replace("Bearer ", "");
84 }
85 var tockHandler = new JwtSecurityToken(accesTocken);
86 TockenInfo info = new TockenInfo
87 {
88 // Age=tockHandler.Claims.FirstOrDefault(c=>c.Type==JwtRegisteredClaimNames.Email)
89 Uid = tockHandler.Claims.FirstOrDefault(c => c.Type == JwtRegisteredClaimNames.Sid).Value,
90 Name = tockHandler.Claims.FirstOrDefault(c => c.Type ==JwtRegisteredClaimNames.Sub).Value,//在于自己来定义了，上面生成是和下面获取时Key要一致
91
92 Age = tockHandler.Claims.FirstOrDefault(c => c.Type == "Age").Value,
93 BirthDay = tockHandler.Claims.FirstOrDefault(c => c.Type == "BirthDay").Value,
94 Roleid = tockHandler.Claims.FirstOrDefault(c => c.Type == "Roleid").Value,
95 };
96 return info;
97 }
98 catch (Exception ex)
99 {
100 throw new Exception("解析Tocken时错误！");
101 }
102 }
103 }
104 public class TockenInfo
105 {
106 public string Uid { get; set; }
107 public string Name { get; set; }
108 public string Age { get; set; }
109 public string BirthDay { get; set; }
110 public string Roleid { get; set; }
111 }
112 }9：模型实体
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Threading.Tasks;
5
6 namespace ZRFCoreTestMongoDB.Model
7 {
8 using System.ComponentModel.DataAnnotations;
9 [Serializable]
10 public class personnel
11 {
12
13 [Required(ErrorMessage = "姓名必填")]
14 [StringLength(maximumLength: 10, ErrorMessage = "姓名最多是10个字符")]
15 [MinLength(2, ErrorMessage = "姓名长度最少为两个字符")]
16 public string Name { get; set; }
17
18 [Range(1, 150, ErrorMessage = "年龄范围为：1-150")]
19 public int Age { get; set; }
20 [DataType(DataType.Date, ErrorMessage = "生日不学为日期格式，例如：1998-10-10")]
21 public DateTime BirthDay { get; set; }
22
23 [Required(ErrorMessage = "密码必填")]
24 [StringLength(maximumLength: 10, MinimumLength = 6, ErrorMessage = "密码长度最多10位")]
25 public string Password { get; set; }
26 public int Roleid { get; set; }
27 public string Uid { get; set; }
28 }
29 }10：配置内容：
11：测试效果
来源：oschina
链接：https://my.oschina.net/u/4318872/blog/4473299