No 'Access-Control-Allow-Origin' header is present on the requested resource
2017-07-01 23:02
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一、现象
ajax调用请求后，前端提示收到这个错误
No 'Access-Control-Allow-Origin' header is present on the requested resource
二、原因
这是一个典型的跨域请求失败的例子。
三、解决
服务器的响应消息中增加头字段即可。
rsp.addHeader("Access-Control-Allow-Origin", "*");
四、扩展
更多的关于CORS的内容可以学习这篇文章：
https://yq.aliyun.com/articles/69313
ajax调用请求后，前端提示收到这个错误
No 'Access-Control-Allow-Origin' header is present on the requested resource
二、原因
这是一个典型的跨域请求失败的例子。
三、解决
服务器的响应消息中增加头字段即可。
rsp.addHeader("Access-Control-Allow-Origin", "*");
四、扩展
更多的关于CORS的内容可以学习这篇文章：
https://yq.aliyun.com/articles/69313
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