参数

HttpRequest

HttpRequest 是用户请求对象
QueryString
Form
Cookie
Session
Header
实例：

 ???????public IActionResult Index() ???????{ ???????????QueryString x = Request.QueryString; // ?a=1 ???????????string x = Request.Query["a"]; //1 ???????????return View(); ???????}

HttpContext

HttpContext 是用户请求上下文
提供Session属性获取Session对象
Session.Set设置
Session.Remove移除
Session.TryGetValue获取数据

数据绑定

默认绑定方式，使用特性：

[FromBody] 请求体
[FromHeader] headers
[FromQuery] 查询字符串
[FromRoute] 路由数据
[FromForm] 表单数据
[FromServices] 服务注册

FromHeader 案例

前台：

<div style="height:100px"> ???<input type="button" value="提交带header参数" onclick="save()" /></div><script> ???function save() { ???????$.ajax({ ???????????url: "home/index", ???????????beforeSend: function (xhr) { ???????????????xhr.setRequestHeader("username", "tangsansan"); ???????????}, ???????????type:"post", ???????????success: function(data) { ???????????????????????????} ???????}); ???}</script>

后台：

 ???????public IActionResult Index([FromHeader] string username) ???????{ ???????????QueryString x = Request.QueryString; ???????????return View(); ???????}

asp.net core MVC 控制器，接收参数，数据绑定

原文地址：https://www.cnblogs.com/tangge/p/10153413.html