前言
报错:
java.lang.IllegalArgumentException: When allowCredentials is true,allowedOrigins cannot contain the special value "*"since that cannot be set on the "Access-Control-Allow-Origin"response header. To allow credentials to a set of origins, list them explicitly or consider using "allowedOriginPatterns" instead.
原因：springboot升级2.6.0后所出现的问题
解决方法：将.allowedOrigins 替换成. allowedOriginPatterns 即可。
如下图：
ps:这是2.3时代的配置，现在不叫这个了，要用：
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