跨域需要服务端和客户端都作处理。
首先让asp.net core跨域，在nuget中添加Microsoft.AspNetCore.Cors的引用，然后在StartUp.cs中的ConfigureServices中添加如下代码：
var urls = "http://localhost:5000/";
services.AddCors(options =>
options.AddPolicy("MyDomain",
builder => builder.WithOrigins(urls).AllowAnyMethod().AllowAnyHeader().AllowAnyOrigin().AllowCredentials()));再在Configure中添加
app.UseCors("AllowSameDomain");再添加验证，添加Microsoft.AspNetCore.Authentication.Cookies引用 在Configure中添加
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationScheme = "validates",
LoginPath = new Microsoft.AspNetCore.Http.PathString("/login"),
AccessDeniedPath = new Microsoft.AspNetCore.Http.PathString("/Home/Error"),
AutomaticAuthenticate = true,
AutomaticChallenge = true,
SlidingExpiration = true
});在Controller中添加允许跨域特性，然后再添验证特性
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Authorization;
using System.Security.Claims;
namespace WebUI.Controllers
{
[Authorize(Roles = "Admin")]
[EnableCors("MyDomain")]
public class HomeController : Controller
{
/// <summary>
/// 测试方法
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
[HttpPost("additem")]
public IActionResult AddItem(Item item)
{
return new JsonResult(new { Result = 0, Message = "添加成功", Content = item.ToString(), UserName = User.Identity.Name }, new Newtonsoft.Json.JsonSerializerSettings());
}
/// <summary>
/// 登录
/// </summary>
/// <param name="username">用户名</param>
/// <param name="password">密码</param>
/// <returns></returns>
[AllowAnonymous]
[HttpPost("login")]
public IActionResult Login(string username, string password)
{
if (username == "aaa" && password == "111")
{
var user = new { RoleType = 1, Name = "张三丰", ID = 1 };
string roleId = user.RoleType.ToString();
var roleName = "";
switch (roleId)
{
case "1":
roleName = "Admin";//管理员
break;
}
var id = user.ID.ToString();
var claims = new Claim[] {
new Claim(ClaimTypes.UserData,roleId),
new Claim(ClaimTypes.Role,roleName),
new Claim(ClaimTypes.Name,username)
};
HttpContext.Authentication.SignInAsync("validates", new ClaimsPrincipal(new ClaimsIdentity(claims, "Cookie")));
HttpContext.User = new ClaimsPrincipal(new ClaimsIdentity(claims));
return new JsonResult(new { Message = "登录成功" }, new Newtonsoft.Json.JsonSerializerSettings());
}
else
{
return new JsonResult(new { Message = "用户名或密码错误" }, new Newtonsoft.Json.JsonSerializerSettings());
}
}
}
}在JQuery中，使用$.ajax登录后，才能执行保存，否则没有权限保存数据，重点时ajax请求时xhrFields: {withCredentials: true }这个属性，可以把登录后的cookie在后面的操作中带回服务端（关于原理不多说了）<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<meta charset="utf-8" />
<script src="bower_components/jquery/dist/jquery.js"></script>
</head>
<body>
<input id="login" value="登录" type="button" />
<input id="sava" value="保存" type="button" />
<span id="message"></span>
<script>
$("#login").click(function () {
$.ajax({
type: 'POST',
url: "http://localhost:5000/login",
data: { username: "aaa", password: "111" },
dataType: "json",
xhrFields: {
withCredentials: true
},
success: function (result) {
$("#message").html(result.Message);
},
error: function () {
$("#message").html("登录失败!");
}
});
})
$("#sava").click(function () {
$.ajax({
type: 'POST',
url: "http://localhost:5000/additem",
data: { ID: 112, Name: "李四", Birthday: "2017-01-23" },
dataType: "json",
//必须有这项的配置，不然cookie无法发送至服务端
xhrFields: {
withCredentials: true
},
success: function (result) {
$("#message").html(result.Message + result.Content + result.UserName);
},
error: function (xhr,status) {
$("#message").html(status);
}
});
})
</script>
</body>
</html>来看一下测试结果：
当直接点保存时，系统会导航登录
登录
再次保存
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