什么是BearerOption.SaveToken属性用于？

Question

在aspnet core 2中配置JwtAuthentication时使用了什么bearerOption.SaveToken属性？

    services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                    .AddJwtBearer(bearer =>
                    {
                        bearer.TokenValidationParameters.IssuerSigningKey = signingKey as SecurityKey;
                        bearer.TokenValidationParameters.ValidIssuer = Configuration["Jwt:Issuer"];
                        bearer.TokenValidationParameters.ValidAudience = Configuration["Jwt:Audience"];
                        bearer.TokenValidationParameters.ClockSkew = TimeSpan.Zero;
                        bearer.TokenValidationParameters.ValidateLifetime = true;
                        bearer.TokenValidationParameters.ValidateAudience = true;
                        bearer.TokenValidationParameters.ValidateIssuer = true;
                        bearer.TokenValidationParameters.ValidateIssuerSigningKey = true;
                        bearer.TokenValidationParameters.RequireExpirationTime = true;
                        bearer.TokenValidationParameters.RequireSignedTokens = true;
                        // ******
                        bearer.SaveToken = true;
                        // ******
                    });

Answer 1

这是一个属性，用于定义在成功授权后是否应将承载令牌存储在AuthenticationProperties中。