springboot设置cors跨域请求的两种方式

深碍√TFBOYSˉ_ 2022-05-24 07:20 216阅读 0赞

1、第一种：

public class CorsFilter extends OncePerRequestFilter {
    
        static final String ORIGIN = "Origin";
    
        protected void doFilterInternal(
            HttpServletRequest request, 
            HttpServletResponse response, 
            FilterChain filterChain) throws ServletException, IOException {
        
            String origin = request.getHeader(ORIGIN);
        
            response.setHeader("Access-Control-Allow-Origin", "*");//* or origin as u prefer
            response.setHeader("Access-Control-Allow-Credentials", "true");
            response.setHeader("Access-Control-Allow-Methods", "PUT, POST, GET, OPTIONS, DELETE");
            response.setHeader("Access-Control-Max-Age", "3600");
            response.setHeader("Access-Control-Allow-Headers", "content-type, authorization");
        
            if (request.getMethod().equals("OPTIONS"))
                response.setStatus(HttpServletResponse.SC_OK);
            else 
                filterChain.doFilter(request, response);
        
        }
    }

@Bean public CorsFilter corsFilter() throws Exception { return new CorsFilter(); }

2、第二种：

@Configuration
    public class CorsConfig {
        @Bean
        public FilterRegistrationBean corsFilter() {
            UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
            CorsConfiguration config = new CorsConfiguration();
            config.setAllowCredentials(true);
            // 设置你要允许的网站域名，如果全允许则设为 *
            config.addAllowedOrigin("http://localhost:4200");
            // 如果要限制 HEADER 或 METHOD 请自行更改
            config.addAllowedHeader("*");
            config.addAllowedMethod("*");
            source.registerCorsConfiguration("/**", config);
            FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
            // 这个顺序很重要哦，为避免麻烦请设置在最前
            bean.setOrder(0);
            return bean;
        }
    }