Blocked cross-origin requests: same-origin policy prohibits read remotely located resources of XXX. (Reason: CORS head missing 'Access-Control-Allow-Origin')

Original link: https://blog.csdn.net/qq_25929547/article/details/79275273

[Resolve browser appears blocked cross-origin requests: ban same-origin policy problem reading]

在 HttpServletResponse 中 添加返回信息 
	response.addHeader("Access-Control-Allow-Origin", "*");