[SpringBoot] 跨域

跨域解释：
https://blog.csdn.net/qinaye/article/detai...

参考：
https://segmentfault.com/a/119000001855452...
https://blog.csdn.net/zhaokejin521/article...

package com.hbshunjie.guache.config.mvc;

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;

@Configuration
public 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("*");
          //放行哪些原始域(头部信息)
          config.addAllowedHeader("*");
          //暴露哪些头部信息（因为跨域访问默认不能获取全部头部信息）
//          config.addExposedHeader("*");

        //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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