您可以在 Spring 中完全禁用 CORS 支持吗？

Question

如CORS preflight request fails due to a standard header 中所述，如果您向OPTIONS 端点发送请求并设置了Origin 和Access-Control-Request-Method 标头，那么它们会被Spring 框架拦截，并且您的方法不会被执行。公认的解决方案是使用@CrossOrigin 注释来阻止Spring 返回403。但是，我正在使用 Swagger Codegen 生成我的 API 代码，所以我只想禁用它并手动实现我的 OPTIONS 响应。

那么你可以在 Spring 中禁用 CORS 拦截吗？

Answer 1

对于较新版本的 Spring Boot：

@Configuration
public class WebConfiguration implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**").allowedMethods("*");
    }
}

Kotlin 方式

@Configuration
class WebConfiguration : WebMvcConfigurer {
    override fun addCorsMappings(registry: CorsRegistry) {
        registry.addMapping("/**").allowedMethods("*")
    }
}

Answer 2

来自他们的documentation：

如果你使用的是 Spring Web MVC

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedMethods("HEAD", "GET", "PUT", "POST", "DELETE", "PATCH");
    }
}

如果您使用的是 Spring Boot：

@Configuration
public class MyConfiguration {

    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurerAdapter() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")
                        .allowedMethods("HEAD", "GET", "PUT", "POST", "DELETE", "PATCH");
            }
        };
    }
}

Yuriy Yunikov 的回答也是正确的。但我不喜欢“自定义”过滤器。

如果你有 Spring Web Security 给你带来麻烦。检查this SO 答案。

Answer 3

尝试添加以下过滤器（您可以根据自己的需要和支持的方法自定义它）：

@Component
public class CorsFilter extends OncePerRequestFilter {

    @Override
    protected void doFilterInternal(final HttpServletRequest request, final HttpServletResponse response,
                                    final FilterChain filterChain) throws ServletException, IOException {
        response.addHeader("Access-Control-Allow-Origin", "*");
        response.addHeader("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, PATCH, HEAD");
        response.addHeader("Access-Control-Allow-Headers", "Origin, Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers");
        response.addHeader("Access-Control-Expose-Headers", "Access-Control-Allow-Origin, Access-Control-Allow-Credentials");
        response.addHeader("Access-Control-Allow-Credentials", "true");
        response.addIntHeader("Access-Control-Max-Age", 10);
        filterChain.doFilter(request, response);
    }
}

Answer 4

我在我的 Spring Boot 应用程序中使用 Spring Security，并允许从特定域（或所有域）进行访问。

我的WebSecurityConfig：

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    // ...

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        // add http.cors()
        http.cors().and().csrf().disable().authorizeRequests()
                .antMatchers("/get/**").permitAll()
                .antMatchers("/update/**").hasRole("ADMIN")
                .anyRequest().authenticated()
                .and()
                .httpBasic(); // Authenticate users with HTTP basic authentication

        // REST is stateless
        http.sessionManagement()
               .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
    }

    // To enable CORS
    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        final CorsConfiguration configuration = new CorsConfiguration();

        configuration.setAllowedOrigins(ImmutableList.of("https://www.yourdomain.com")); // www - obligatory
//        configuration.setAllowedOrigins(ImmutableList.of("*"));  //set access from all domains
        configuration.setAllowedMethods(ImmutableList.of("GET", "POST", "PUT", "DELETE"));
        configuration.setAllowCredentials(true);
        configuration.setAllowedHeaders(ImmutableList.of("Authorization", "Cache-Control", "Content-Type"));

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

        return source;
    }

}

有时需要在测试前清除浏览器历史记录。

详细信息可以在这里看到： http://appsdeveloperblog.com/crossorigin-restful-web-service/

---

仅适用于使用 Angular 的用户。从 Angular 我向后端运行请求：

export class HttpService {

  username = '..';
  password = '..';
  host = environment.api;
  uriUpdateTank = '/update/tank';

  headers: HttpHeaders = new HttpHeaders({
    'Content-Type': 'application/json',
    Authorization: 'Basic ' + btoa(this.username + ':' + this.password)
  });

  constructor(private http: HttpClient) {
  }

  onInsertTank(tank: Tank) {
    return this.http.put(this.host + this.uriUpdateTank, tank, {
      headers: this.headers
    })
      .pipe(
        catchError(this.handleError)
      );
  }
...
}

---

旧版本。 在我的 Spring Boot 应用程序中，没有其他方法可以工作：

import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class RequestFilter implements Filter {

    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) {

        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;

        response.setHeader("Access-control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with, x-auth-token");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Credentials", "true");

        if (!(request.getMethod().equalsIgnoreCase("OPTIONS"))) {
            try {
                chain.doFilter(req, res);
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        } else {
            System.out.println("Pre-flight");
            response.setHeader("Access-Control-Allowed-Methods", "POST, GET, DELETE");
            response.setHeader("Access-Control-Max-Age", "3600");
            response.setHeader("Access-Control-Allow-Headers", "authorization, content-type,x-auth-token, " +
                    "access-control-request-headers, access-control-request-method, accept, origin, authorization, x-requested-with");

            response.setStatus(HttpServletResponse.SC_OK);
        }

    }

    public void init(FilterConfig filterConfig) {
    }

    public void destroy() {
    }

}

Answer 5

如果你至少有 Java 8，试试这个：

@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.cors().configurationSource(request -> new CorsConfiguration().applyPermitDefaultValues());
    }
}

Answer 6

以前的答案几乎都是关于启用 CORS，这对我来说是禁用的。

@Configuration
public class MyConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.cors().and().csrf().disable();
    }

    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**").allowedMethods("*");
            }
        };
    }
}

Answer 7

Spring MVC

• https://docs.spring.io/spring-framework/docs/5.3.13/reference/html/web.html#mvc-cors-global-java

@Configuration(proxyBeanMethods = false)
@EnableWebMvc
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**").allowedMethods("*").allowedHeaders("*");
    }
}

春季启动

• https://docs.spring.io/spring-boot/docs/2.5.7/reference/htmlsingle/#features.developing-web-applications.spring-mvc.cors

@Configuration(proxyBeanMethods = false)
public class MyConfiguration {

    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(final CorsRegistry registry) {
                registry.addMapping("/**").allowedMethods("*").allowedHeaders("*");
            }
        };
    }
}

Spring 安全性（使用 Spring MVC 或 Spring Boot）

• https://docs.spring.io/spring-security/site/docs/5.5.3/reference/html5/#cors

@Configuration(proxyBeanMethods = false)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(final HttpSecurity http) throws Exception {
        // ...

        // see also: https://docs.spring.io/spring-security/site/docs/5.5.3/reference/html5/#csrf-when
        http.csrf().disabled();

        // if Spring MVC is on classpath and no CorsConfigurationSource is provided,
        // Spring Security will use CORS configuration provided to Spring MVC
        http.cors(Customizer.withDefaults());
    }
}