ajax 跨域的解决 cors

package com.leyou.gateway.config;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.web.cors.CorsConfiguration;import org.springframework.web.cors.UrlBasedCorsConfigurationSource;import org.springframework.web.filter.CorsFilter;/** * @author li * @time:2018/8/7 * 处理跨域请求的过滤器 */@Configurationpublic class GlobalCorsConfig {    @Bean    public CorsFilter corsFilter() {        //1.添加CORS配置信息        CorsConfiguration config = new CorsConfiguration();        //1) 允许的域,不要写*，否则cookie就无法使用了        config.addAllowedOrigin("http://manager.leyou.com");        config.addAllowedOrigin("http://www.leyou.com");        //2) 是否发送Cookie信息        config.setAllowCredentials(true);        //3) 允许的请求方式        config.addAllowedMethod("OPTIONS");        config.addAllowedMethod("HEAD");        config.addAllowedMethod("GET");        config.addAllowedMethod("PUT");        config.addAllowedMethod("POST");        config.addAllowedMethod("DELETE");        config.addAllowedMethod("PATCH");        // 4）允许的头信息        config.addAllowedHeader("*");        //2.添加映射路径，我们拦截一切请求        UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();        configSource.registerCorsConfiguration("/**", config);        //3.返回新的CorsFilter.        return new CorsFilter(configSource);    }}

来源：https://www.cnblogs.com/mm163/p/11784531.html