SpringBoot 跨域 解决方案

看大部分文章都是通过WebMvcConfigurer 来处理的, 这样的话会导致其他配置紊乱

发一下我常用的配置

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;
​
/**
 * 跨域配置
 *
 * @author ly-chn
 */
@Configuration
public class CorsConfig {
    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", buildConfig());
        return new CorsFilter(source);
    }
​
    private CorsConfiguration buildConfig() {
        CorsConfiguration corsConfiguration = new CorsConfiguration();
        corsConfiguration.addAllowedOrigin(CorsConfiguration.ALL);
        corsConfiguration.addAllowedHeader(CorsConfiguration.ALL);
        corsConfiguration.addAllowedMethod(CorsConfiguration.ALL);
        // 允许cookie, 我没这么用过
        // corsConfiguration.setAllowCredentials(true);
        return corsConfiguration;
    }
}

好处是不会影响其他配置, 2.x和3.x通用

github