spring boot 2.4版本跨域问题 

报错信息：

When allowCredentials is true, allowedOrigins cannot contain the special value "*" since that cannot be set on the "Access-Control-Al    low-Origin" response header. To allow credentials to a set of origins, list them explicitly or consider using "allowedOriginPatterns" instead

 

 

 

解决办法：跨域配置报错，将.allowedOrigins替换成.allowedOriginPatterns即可。

1     @Override
2     public void addCorsMappings(CorsRegistry registry) {
3         registry.addMapping("/**")
4                 .allowedOriginPatterns("*")
5                 .allowedMethods("*")
6                 .allowCredentials(false)
7                 .maxAge(3600);
8     }