解决前后端跨域报错：has been blocked by CORS policy: No ‘Access-Control-Allow-Origin‘

2024-02-29 18:00:03 分类：前端热度：16 评论： 0

一、报错信息

has been blocked by CORS policy: No 'A***ess-Control-Allow-Origin'
 header is present on the requested resource.

来自一个IP端口的页面（前端项目），要访问另一个IP端口的资源（springboot请求接口），会产生跨域访问。

二、解决方法：增加配置类CorsConfig

@Configuration
public class CorsConfig implements WebMv***onfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry){
        registry.addMapping("/**")
                .allowedOriginPatterns("*")
                .allowedHeaders(CorsConfiguration.ALL)
                .allowedMethods(CorsConfiguration.ALL)
                .allowCredentials(true)
                .maxAge(3600);
    }
}