最新springboot解决跨域的几种方式小结

@GetMapping ( "/hello" )

@CrossOrigin

public String hello() {

         return "hello:" + simpleDateFormat.format( new Date());

}

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 ConfigConfiguration {

     @Bean

     public CorsFilter CorsFilter() {

         CorsConfiguration corsConfiguration = new CorsConfiguration();

         corsConfiguration.addAllowedOriginPattern( "*" );

         corsConfiguration.addAllowedHeader( "*" );

         corsConfiguration.addAllowedMethod( "*" );

         corsConfiguration.setAllowCredentials( true );

         UrlBasedCorsConfigurationSource ub = new UrlBasedCorsConfigurationSource();

         ub.registerCorsConfiguration( "/**" , corsConfiguration);

         return new CorsFilter(ub);

     }

}

@Component

public class CustomFilter implements Filter {

     @Override

     public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

         HttpServletResponse res = (HttpServletResponse) servletResponse;

         // 设置允许Cookie

         res.addHeader( "Access-Control-Allow-Credentials" , "true" );

         // 允许http://HdhCmsTestxxx测试数据域（自行设置，这里只做示例）发起跨域请求

         res.addHeader( "Access-Control-Allow-Origin" , "*" );

         // 设置允许跨域请求的方法

         res.addHeader( "Access-Control-Allow-Methods" , "GET, POST, DELETE, PUT" );

         // 允许跨域请求包含content-type

         res.addHeader( "Access-Control-Allow-Headers" , "Content-Type,X-CAF-Authorization-Token,sessionToken,X-TOKEN" );

         if (((HttpServletRequest) servletRequest).getMethod().equals( "OPTIONS" )) {

             servletResponse.getWriter().println( "ok" );

             return ;

         }

         filterChain.doFilter(servletRequest, servletResponse);

     }

}

import org.springframework.stereotype.Component;

import org.springframework.web.servlet.config.annotation.CorsRegistry;

import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Component

public class MyWebMvcConfigurer implements WebMvcConfigurer {

     @Override

     public void addCorsMappings(CorsRegistry registry) {

         registry.addMapping( "/**" )  // 匹配所有的路径

                 .allowCredentials( true ) // 设置允许凭证

                 .allowedHeaders( "*" )   // 设置请求头

                 .allowedMethods( "GET" , "POST" , "PUT" , "DELETE" ) // 设置允许的方式

                 .allowedOriginPatterns( "*" );

     }

}