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创建文件GlobalCorsConfig.java

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;/** 全局跨域配置类*/@Configurationpublic class GlobalCorsConfig {
       @Bean    public CorsFilter corsFilter() {
           //1.添加CORS配置信息        CorsConfiguration config = new CorsConfiguration();        //放行哪些原始域        config.addAllowedOrigin("*");        //是否发送Cookie信息        config.setAllowCredentials(true);        //放行哪些原始域(请求方式)        config.addAllowedMethod("OPTIONS");        config.addAllowedMethod("HEAD");        config.addAllowedMethod("GET");     //get        config.addAllowedMethod("PUT");     //put        config.addAllowedMethod("POST");    //post        config.addAllowedMethod("DELETE");  //delete        config.addAllowedMethod("PATCH");        config.addAllowedHeader("*");        //2.添加映射路径        UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();        configSource.registerCorsConfiguration("/**", config);        //3.返回新的CorsFilter.        return new CorsFilter(configSource);    }}

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