jquery ajax No 'Access-Control-Allow-Origin' header is present on the requested resource
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No 'Access-Control-Allow-Origin' header is present on the requested resource.
没有访问控制允许源头是目前对请求的资源
没有访问控制允许源头是目前对请求的资源
——跨域问题引起。
Access-Control-Allow-Origin与跨域:
问题
在某域名下使用Ajax向另一个域名下的页面请求数据,会遇到跨域问题。另一个域名必须在response中添加 Access-Control-Allow-Origin 的header,才能让前者成功拿到数据。
修改两处:
1. dataType: 'jsonp'
2. java中 rsp.setHeader("Access-Control-Allow-Origin", "*");
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