SpringBoot 解决跨域问题

 

1、@CrossOrigin注解解决跨域

@GetMapping("/hello")
@ResponseBody
@CrossOrigin(value = "*")
public String hello() {
     return "hello";
}

2、接口编程

@Configuration
public class WebConfigurer implements WebMvcConfigurer {
      @Override
      public void addCorsMappings(CorsRegistry registry) {
           registry.addMapping("/**")
                .allowedHeaders("*")
                .allowedMethods("*")
                .allowCredentials(true)
                .allowedOriginPatterns("*")
                .maxAge(3600);
     }
}

3、过滤器实现

@Configuration
public class FilterConfig {

  @Bean
  public FilterRegistrationBean registFilter() {
    org.springframework.web.cors.UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    CorsConfiguration config = new CorsConfiguration();
    config.setAllowCredentials(true);
    config.addAllowedOrigin("*");
    source.registerCorsConfiguration("/**", config);
    FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
    bean.setOrder(0);
    return bean;
  }
}