ASP.NET Core中使用Session

PM> Install-Package Microsoft.AspNetCore.Session -Version 2.2.0

1 <ItemGroup>
2     <PackageReference Include="Microsoft.AspNetCore.Session" Version="2.2.0" />
3 </ItemGroup>

1 public void ConfigureServices(IServiceCollection services)
2 {
3     services.AddSession();
4 }

1 public void Configure(IApplicationBuilder app, IHostingEnvironment env)
2 {
3      app.UseSession();
4 }

1 public void ConfigureServices(IServiceCollection services)
2 {
3 　　services.Configure<CookiePolicyOptions>(options =>
4    　　{
5        　　// This lambda determines whether user consent for non-essential cookies is needed for a given request.
6        　　options.CheckConsentNeeded = context => false;//默认为true，改为false
7       　　 options.MinimumSameSitePolicy = SameSiteMode.None;
8       });
9 }

1 HttpContext.Session.SetString("key", "value");

1 HttpContext.Session.GetString("key");

 1 /// <summary>
 2 /// Session写入
 3 /// </summary>
 4 /// <param name="key">键</param>
 5 /// <param name="value">值</param>
 6 protected void SetSession(string key, string value)
 7 {
 8     HttpContext.Session.SetString(key, value);
 9 }
10 
11 /// <summary>
12 /// Session读取
13 /// </summary>
14 /// <param name="key">键</param>
15 /// <returns>返回对应的值</returns>
16 protected string GetSession(string key)
17 {
18     var value = HttpContext.Session.GetString(key);
19     if (string.IsNullOrEmpty(value))
20     value = string.Empty;
21     return value;
22 }