Springboot解决前端跨域问题

编写配置类，实现接口addCorsMappings

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOriginPatterns("*")  // 改用allowedOriginPatterns代替allowedOrigins
                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
                .allowCredentials(true)
                .allowedHeaders("*")
                .maxAge(3600);  // 预检请求缓存时间
    }