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分享asp.net core webapi 直接浏览器访问web api访问成功，但是用js跨域访问就访问不到了？
Controller代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Http;
namespace WebApplication2.Controllers
{
[Route("api/[controller]")]
[EnableCors("any")]
[ApiController]
public class TestController : Controller
{
// GET api/test/5
[HttpGet("{id}")]
[EnableCors("any")]
public string Get(int id)
{
HttpContext.Session.SetString("name", "中文");
string result = HttpContext.Session.GetString("name");
return result.ToString();
}
// GET api/test
[HttpGet]
public string Get()
{
try
{
string result = HttpContext.Session.GetString("name");
return "name:"+result.ToString();
}
catch (Exception ex)
{
return ex.ToString();
}
}
}
}
Startup代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
namespace WebApplication2
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
//Session 保存到内存
services.AddDistributedMemoryCache();
services.AddSession();
//配置跨域处理
services.AddCors(options =>
{
options.AddPolicy("any", builder =>
{
builder.AllowAnyOrigin() //允许任何来源的主机访问
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials();//指定处理cookie
});
});
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseHsts();
}
app.UseSession();
app.UseHttpsRedirection();
app.UseMvc();
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Http;
namespace WebApplication2.Controllers
{
[Route("api/[controller]")]
[EnableCors("any")]
[ApiController]
public class TestController : Controller
{
// GET api/test/5
[HttpGet("{id}")]
[EnableCors("any")]
public string Get(int id)
{
HttpContext.Session.SetString("name", "中文");
string result = HttpContext.Session.GetString("name");
return result.ToString();
}
// GET api/test
[HttpGet]
public string Get()
{
try
{
string result = HttpContext.Session.GetString("name");
return "name:"+result.ToString();
}
catch (Exception ex)
{
return ex.ToString();
}
}
}
}
Startup代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
namespace WebApplication2
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
//Session 保存到内存
services.AddDistributedMemoryCache();
services.AddSession();
//配置跨域处理
services.AddCors(options =>
{
options.AddPolicy("any", builder =>
{
builder.AllowAnyOrigin() //允许任何来源的主机访问
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials();//指定处理cookie
});
});
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseHsts();
}
app.UseSession();
app.UseHttpsRedirection();
app.UseMvc();
}
}
}
...全文
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正怒月神 版主 2019-05-28
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#2正解。
首先要后台增加对于提交请求的支持。
然后ajax需要携带认证信息
娃都会打酱油了 2019-05-28
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brain707 2019-05-28
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js代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="jquery.js"></script>
<script>
$.ajax({
type: 'GET',
url: 'http://10.10.1.112:8000/api/test/5',
xhrFields: {
withCredentials:true //配置http跨域请求中携带cookie
},
success: function (data) {
alert(data);
},
error: function () {
alert('登录发生错误!');
}
});
</script>
</head>
<body>
</body>
</html>
