Springboot+VUE 解决跨域问题

1、新建一个配置类，如下

@Configuration
public class MvcConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        // 这里匹配了所有的URL，允许所有的外域发起跨域请求，允许外域发起请求任意HTTP Method，允许跨域请求包含任意的头信息。
        registry.addMapping("/**")
                .allowedHeaders("*")
                .allowedMethods("*")
                .allowedOriginPatterns("*")
                .allowCredentials(true);
    }
}

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