google插件跨域含用户请求WebApi解决的方案

问题描述:

google插件跨域请求WebApi相关解决方案

1.ajax解决含登录用户信息

$.ajax({
            url: url,
            type: "POST",
            timeout: 60000,
            async: async,
            data: params,
            dataType: "json",
            xhrFields: { withCredentials: true },
            crossDomain: true,      //注意这两行代码,这里包含跨域并且包含登录用户信息      
            success: function (data) {
                call(data);
            },
            error: function (error) {//增加访问出错信息返回
                alert(JSON.stringify(error));                
            }, 
            complete: function (XMLHttpRequest, status) {               
            }
        });

2.解决WebApi跨域的问题

WebApi中的设置: 

using System.Web.Http.Cors;//引用

[EnableCors(origins: "*", headers: "*", methods: "*")]//注意在类上添加
public class DemoController : ApiController

    [Route("api/GatherOne"),HttpPost]

        public HttpResponseMessage DemoCors()

        {            

            IEnumerable<string> origin;
            Request.Headers.TryGetValues("Origin", out origin);//注意这里:获取前端的Origin值

            if (origin.Any())
            {
                HttpResponseMessage httpResponseMessage = new HttpResponseMessage();
                httpResponseMessage.Headers.Add("Access-Control-Allow-Origin", origin);//这里必须要添加此标签中,否则无法解决跨域的问题
                httpResponseMessage.Headers.Add("Access-Control-Allow-Headers", "*");
                httpResponseMessage.Headers.Add("Access-Control-Allow-Credentials", "true");
                httpResponseMessage.Headers.Add("Access-Control-Allow-Methods", "*");
       }
    }

3.WebApi中获取前端headers中的值

IEnumerable<string> origin;
Request.Headers.TryGetValues("Origin", out origin);//获取Origin的值

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转载自www.cnblogs.com/gonghui2016/p/12197117.html
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