Spring boot 跨域

一、实现 WebMvcConfigurer

• 方式一

  import org.springframework.context.annotation.Configuration;
  import org.springframework.web.servlet.config.annotation.CorsRegistry;
  import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
  
  @Configuration
  public class CorsConfig implements WebMvcConfigurer {
      @Override
      public void addCorsMappings(CorsRegistry registry) {
          registry
              .addMapping("/**")
              .allowedOriginPatterns("*")
              .allowedHeaders("*")
              .allowedMethods("*")
              .allowCredentials(true);
      }
  }
  

• 方式二

  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.web.servlet.config.annotation.CorsRegistry;
  import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
  
  @Configuration
  public class CorsConfig {
      @Bean
      public WebMvcConfigurer corsConfigurer() {
          return new WebMvcConfigurer() {
              @Override
              public void addCorsMappings(CorsRegistry registry) {
                  registry
                      .addMapping("/**")
                      .allowedOriginPatterns("*")
                      .allowedHeaders("*")
                      .allowedMethods("*")
                      .allowCredentials(true);
              }
          };
      }
  }
  

二、过滤器

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 CorsConfig {
    @Bean
    public CorsFilter corsFilter() {
        CorsConfiguration config = new CorsConfiguration();
        config.addAllowedOriginPattern(CorsConfiguration.ALL);
        config.addAllowedHeader(CorsConfiguration.ALL);
        config.addAllowedMethod(CorsConfiguration.ALL);
        config.setAllowCredentials(true);

        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config);

        return new CorsFilter(source);
    }
}