spring-boot 和 angularjs 的 CORS 不工作

Question

我正在尝试从一个应用程序（spring-启动应用程序）上调用另一个应用程序（angularjs）上的 REST 端点。这些应用程序运行在以下主机和端口上。

REST 应用程序，使用 spring 引导，http://localhost:8080
HTML 申请，使用 angularjs, http://localhost:50029

我也在使用 spring-security 和 spring-boot 应用程序。从 HTML 应用程序，我可以向 REST 应用程序进行身份验证，但是此后，我仍然无法访问任何 REST 端点。例如，我有一个 angularjs 服务定义如下。

adminServices.factory('AdminService', ['$resource', '$http', 'conf', function($resource, $http, conf) {
    var s = {};
    s.isAdminLoggedIn = function(data) {
        return $http({
            method: 'GET',
            url: 'http://localhost:8080/api/admin/isloggedin',
            withCredentials: true,
            headers: {
                'X-Requested-With': 'XMLHttpRequest'
            }
        });
    };
    s.login = function(username, password) {
        var u = 'username=' + encodeURI(username);
        var p = 'password=' + encodeURI(password);
        var r = 'remember_me=1';
        var data = u + '&' + p + '&' + r;

        return $http({
            method: 'POST',
            url: 'http://localhost:8080/login',
            data: data,
            headers: {'Content-Type': 'application/x-www-form-urlencoded'}
        });
    };
    return s;
}]);

angularjs 控制器如下所示。

adminControllers.controller('LoginController', ['$scope', '$http', 'AdminService', function($scope, $http, AdminService) {
    $scope.username = '';
    $scope.password = '';

    $scope.signIn = function() {
        AdminService.login($scope.username, $scope.password)
            .success(function(d,s) {
                if(d['success']) {
                    console.log('ok authenticated, call another REST endpoint');
                    AdminService.isAdminLoggedIn()
                        .success(function(d,s) {
                            console.log('i can access a protected REST endpoint after logging in');
                        })
                        .error(function(d, s) { 
                            console.log('huh, error checking to see if admin is logged in');
                            $scope.reset();
                        });
                } else {
                    console.log('bad credentials?');
                }
            })
            .error(function(d, s) {
                console.log('huh, error happened!');
            });
    };
}]);

在调用 http://localhost:8080/api/admin/isloggedin 时，我收到 401 Unauthorized。

在 REST 应用程序端，我有一个如下所示的 CORS 过滤器。

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

    @Override
    public void destroy() { }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        HttpServletRequest request = (HttpServletRequest) req;

        response.setHeader("Access-Control-Allow-Origin", "http://localhost:50029");
        response.setHeader("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "X-Requested-With, X-Auth-Token");
        response.setHeader("Access-Control-Allow-Credentials", "true");

        if(!"OPTIONS".equalsIgnoreCase(request.getMethod())) {
            chain.doFilter(req, res);
        }
    }

    @Override
    public void init(FilterConfig config) throws ServletException { }
}

我的 spring 安全配置如下所示。

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private RestAuthenticationEntryPoint restAuthenticationEntryPoint;

    @Autowired
    private JsonAuthSuccessHandler jsonAuthSuccessHandler;

    @Autowired
    private JsonAuthFailureHandler jsonAuthFailureHandler;

    @Autowired
    private JsonLogoutSuccessHandler jsonLogoutSuccessHandler;

    @Autowired
    private AuthenticationProvider authenticationProvider;

    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private PersistentTokenRepository persistentTokenRepository;

    @Value("${rememberme.key}")
    private String rememberMeKey;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .csrf().disable()
            .exceptionHandling()
            .authenticationEntryPoint(restAuthenticationEntryPoint)
                .and()
            .authorizeRequests()
                .antMatchers("/api/admin/**").hasRole("ADMIN")
                .antMatchers("/", "/admin", "/css/**", "/js/**", "/fonts/**", "/api/**").permitAll()
                .anyRequest().authenticated()
                .and()
            .formLogin()
                .successHandler(jsonAuthSuccessHandler)
                .failureHandler(jsonAuthFailureHandler)
                .permitAll()
                .and()
            .logout()
                .deleteCookies("remember-me", "JSESSIONID")
                .logoutSuccessHandler(jsonLogoutSuccessHandler)
                .permitAll()
                .and()
            .rememberMe()
                .userDetailsService(userDetailsService)
                .tokenRepository(persistentTokenRepository)
                .rememberMeCookieName("REMEMBER_ME")
                .rememberMeParameter("remember_me")
                .tokenValiditySeconds(1209600)
                .useSecureCookie(false)
                .key(rememberMeKey);
    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth
            .authenticationProvider(authenticationProvider);
    }
}

所有处理程序正在做的是根据用户是否登录、身份验证失败或注销写出 JSON 响应，如 {success: true}。 RestAuthenticationEntryPoint 如下所示。

@Component
public class RestAuthenticationEntryPoint implements AuthenticationEntryPoint {

    @Override
    public void commence(HttpServletRequest req, HttpServletResponse resp, AuthenticationException ex)
            throws IOException, ServletException {
        resp.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized");
    }

}

关于我遗漏或做错了什么的任何想法？

Answer 1

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class SimpleCORSFilter implements Filter {

private final Logger log = LoggerFactory.getLogger(SimpleCORSFilter.class);

public SimpleCORSFilter() {
    log.info("SimpleCORSFilter init");
}

@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {

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

    response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
    response.setHeader("Access-Control-Allow-Credentials", "true");
    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
    response.setHeader("Access-Control-Max-Age", "3600");
    response.setHeader("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With, remember-me");

    chain.doFilter(req, res);
}

@Override
public void init(FilterConfig filterConfig) {
}

@Override
public void destroy() {
}

}

无需额外定义此过滤器，只需添加此 class。 Spring将为您扫描并添加。简单的 CORS 过滤器。这是示例：spring-enable-cors

Answer 2

我也遇到过类似情况。经过研究和测试，这是我的发现：

使用 Spring 引导，启用全局 CORS 的推荐方法是在 Spring MVC 中声明并结合细粒度 @CrossOrigin 配置：

@Configuration
public class CorsConfig {

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

现在，由于您正在使用 Spring 安全性，因此您还必须在 Spring 安全级别启用 CORS，以允许它利用在 Spring 定义的配置=] MVC 级别为：
```
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.cors().and()...
    }
}
```
Here 是解释 Spring MVC 框架中 CORS 支持的非常优秀的教程。

Answer 3

检查这个：

@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
    ...
            .antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
    ...
}

Answer 4

这对我有用：

@Configuration
public class MyConfig extends WebSecurityConfigurerAdapter  {
   //...
   @Override
   protected void configure(HttpSecurity http) throws Exception {

       //...         

       http.cors().configurationSource(new CorsConfigurationSource() {

        @Override
        public CorsConfiguration getCorsConfiguration(HttpServletRequest request) {
            CorsConfiguration config = new CorsConfiguration();
            config.setAllowedHeaders(Collections.singletonList("*"));
            config.setAllowedMethods(Collections.singletonList("*"));
            config.addAllowedOrigin("*");
            config.setAllowCredentials(true);
            return config;
        }
      });

      //...

   }

   //...

}

Answer 5

扩展 WebSecurityConfigurerAdapter class 并覆盖 @EnableWebSecurity class 中的 configure() 方法会起作用：下面是示例 class

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

         http
        .csrf().disable()
        .exceptionHandling();
         http.headers().cacheControl();

        @Override
        public CorsConfiguration getCorsConfiguration(final HttpServletRequest request) {
            return new CorsConfiguration().applyPermitDefaultValues();
        }
    });
   }
}

Answer 6

如果您的程序最初不使用 spring 安全性并且无法承担代码更改的费用，那么创建一个简单的反向代理就可以解决问题。就我而言，我使用了具有以下配置的 Nginx：

http {
  server {
    listen 9090;
    location / {
      if ($request_method = 'OPTIONS') {
      add_header 'Access-Control-Allow-Origin' '*';
      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
      #
      # Custom headers and headers various browsers *should* be OK with but aren't
      #
      add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
      #
      # Tell client that this pre-flight info is valid for 20 days
      #
      add_header 'Access-Control-Max-Age' 1728000;
      add_header 'Content-Type' 'text/plain; charset=utf-8';
      add_header 'Content-Length' 0;
      return 204;
      }
      if ($request_method = 'POST') {
      add_header 'Access-Control-Allow-Origin' '*';
      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
      add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
      add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
      }
      if ($request_method = 'GET') {
      add_header 'Access-Control-Allow-Origin' '*';
      add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
      add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
      add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
      }

      proxy_pass http://localhost:8080;
    }
  }
}

我的程序监听 :8080.

REF: CORS on Nginx

Answer 7

对我来说，当使用 spring 安全性时，唯一 100% 有效的方法是跳过所有额外的过滤器和 bean 以及任何间接的 "magic" 人们一直建议对他们有用的东西但不适合我。

而是强制它用普通的 StaticHeadersWriter:

编写您需要的 headers

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

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

        http
            // your security config here
            .authorizeRequests()
            .antMatchers(HttpMethod.TRACE, "/**").denyAll()
            .antMatchers("/admin/**").authenticated()
            .anyRequest().permitAll()
            .and().httpBasic()
            .and().headers().frameOptions().disable()
            .and().csrf().disable()
            .headers()
            // the headers you want here. This solved all my CORS problems! 
            .addHeaderWriter(new StaticHeadersWriter("Access-Control-Allow-Origin", "*"))
            .addHeaderWriter(new StaticHeadersWriter("Access-Control-Allow-Methods", "POST, GET"))
            .addHeaderWriter(new StaticHeadersWriter("Access-Control-Max-Age", "3600"))
            .addHeaderWriter(new StaticHeadersWriter("Access-Control-Allow-Credentials", "true"))
            .addHeaderWriter(new StaticHeadersWriter("Access-Control-Allow-Headers", "Origin,Accept,X-Requested-With,Content-Type,Access-Control-Request-Method,Access-Control-Request-Headers,Authorization"));
    }
}

这是我发现的最直接、最明确的方法。希望对大家有帮助。

Answer 8

如果您想在不使用过滤器或不使用配置文件的情况下启用 CORS，只需添加

@CrossOrigin

到控制器的顶部，它就可以工作了。

Answer 9

如果您有 Spring 具有 Spring 安全性的 Spring 启动 REST 服务应用程序（不是 Spring MVC），则以上述其他答案为基础，然后通过 [=41] 启用 CORS =] 安全性就足够了（如果您使用 Spring MVC，那么使用 Yogen 提到的 WebMvcConfigurer bean 可能是可行的方法，因为 Spring 安全性将委托给其中提到的 CORS 定义）

所以您需要一个执行以下操作的安全配置：

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Override
protected void configure(HttpSecurity http) throws Exception {
    //other http security config
    http.cors().configurationSource(corsConfigurationSource());
}

//This can be customized as required
CorsConfigurationSource corsConfigurationSource() {
    CorsConfiguration configuration = new CorsConfiguration();
    List<String> allowOrigins = Arrays.asList("*");
    configuration.setAllowedOrigins(allowOrigins);
    configuration.setAllowedMethods(singletonList("*"));
    configuration.setAllowedHeaders(singletonList("*"));
    //in case authentication is enabled this flag MUST be set, otherwise CORS requests will fail
    configuration.setAllowCredentials(true);
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", configuration);
    return source;
}

}

此 link 有更多关于相同内容的信息：https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/#cors

注：

为产品部署的应用程序的所有来源 (*) 启用 CORS 可能并不总是一个好主意。
CSRF 可以通过 Spring HttpSecurity 自定义启用，没有任何问题
如果您在应用程序中使用 Spring 启用了身份验证（例如通过 UserDetailsService），则必须添加 configuration.setAllowCredentials(true);

针对 Spring 启动 2.0.0.RELEASE 进行了测试（即 Spring 5.0.4.RELEASE 和 Spring 安全 5.0.3.RELEASE）

Answer 10

我正在使用 spring boot 2.1.0，对我有用的是

一个。通过以下方式添加 cors 映射：

@Configuration
public class Config implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**").allowedOrigins("*");
    }
}

乙。为 spring security

添加以下配置到我的 HttpSecurity

.cors().configurationSource(new CorsConfigurationSource() {

    @Override
    public CorsConfiguration getCorsConfiguration(HttpServletRequest request) {
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowedHeaders(Collections.singletonList("*"));
        config.setAllowedMethods(Collections.singletonList("*"));
        config.addAllowedOrigin("*");
        config.setAllowCredentials(true);
        return config;
    }
})

此外，在 Zuul 代理的情况下，您可以使用此 INSTEAD OF A 和 B（只需使用 HttpSecurity.cors() 在 Spring 安全性中启用它） :

@Bean
public CorsFilter corsFilter() {
    final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    final CorsConfiguration config = new CorsConfiguration();
    config.setAllowCredentials(true);
    config.addAllowedOrigin("*");
    config.addAllowedHeader("*");
    config.addAllowedMethod("OPTIONS");
    config.addAllowedMethod("HEAD");
    config.addAllowedMethod("GET");
    config.addAllowedMethod("PUT");
    config.addAllowedMethod("POST");
    config.addAllowedMethod("DELETE");
    config.addAllowedMethod("PATCH");
    source.registerCorsConfiguration("/**", config);
    return new CorsFilter(source);
}

Answer 11

这对我有用。

@EnableWebSecurity
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {

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

        http.cors();
    }

}

@Configuration
public class WebConfiguration implements WebMvcConfigurer {

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

}

Answer 12

此答案复制了@abosancic 的答案，但增加了额外的安全性以避免 CORS 利用。

提示 1：不要在未检查允许访问的主机列表的情况下按原样反映传入的 Origin。

提示 2：仅允许白名单主机的凭据请求。

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class SimpleCORSFilter implements Filter {

    private final Logger log = LoggerFactory.getLogger(SimpleCORSFilter.class);

    private List<String> allowedOrigins;

    public SimpleCORSFilter() {
        log.info("SimpleCORSFilter init");
        allowedOrigins = new ArrayList<>();
        allowedOrigins.add("https://mysafeorigin.com");
        allowedOrigins.add("https://itrustthissite.com");
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {

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

        String allowedOrigin = getOriginToAllow(request.getHeader("Origin"));

        if(allowedOrigin != null) {
            response.setHeader("Access-Control-Allow-Origin", allowedOrigin);
            response.setHeader("Access-Control-Allow-Credentials", "true");
        }

        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With, remember-me");

        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig filterConfig) {
    }

    @Override
    public void destroy() {
    }

    public String getOriginToAllow(String incomingOrigin) {
        if(allowedOrigins.contains(incomingOrigin.toLowerCase())) {
            return incomingOrigin;
        } else {
            return null;
        }
    }
}

Answer 13

步骤 1

通过使用 @CrossOrigin 注释对控制器进行注释将允许 CORS 配置。

@CrossOrigin
@RestController
public class SampleController { 
  .....
}

步骤 2

Spring 已经有一个 CorsFilter，尽管您可以将自己的 CorsFilter 注册为 bean 以提供您自己的配置，如下所示。

@Bean
public CorsFilter corsFilter() {
    final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    final CorsConfiguration config = new CorsConfiguration();
    config.setAllowedOrigins(Collections.singletonList("http://localhost:3000")); // Provide list of origins if you want multiple origins
    config.setAllowedHeaders(Arrays.asList("Origin", "Content-Type", "Accept"));
    config.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "OPTIONS", "DELETE", "PATCH"));
    config.setAllowCredentials(true);
    source.registerCorsConfiguration("/**", config);
    return new CorsFilter(source);
}

Answer 14

在我们的 Spring 启动应用程序中，我们已经像这样设置了 CorsConfigurationSource。

先添加allowedOrigns然后设置applyPermitDefaultValues()的顺序让Spring为允许的headers设置默认值，暴露headers，允许的方法，等等，所以我们不必指定这些。

    public CorsConfigurationSource corsConfigurationSource() {
        CorsConfiguration configuration = new CorsConfiguration();
        configuration.setAllowedOrigins(Arrays.asList("http://localhost:8084"));
        configuration.applyPermitDefaultValues();

        UrlBasedCorsConfigurationSource configurationSource = new UrlBasedCorsConfigurationSource();
        configurationSource.registerCorsConfiguration("/**", configuration);
        return configurationSource;
    }

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

        http.authorizeRequests()
                .antMatchers("/api/**")
                .access("@authProvider.validateApiKey(request)")
                .anyRequest().authenticated()
                .and().cors()
                .and().csrf().disable()
                .httpBasic().authenticationEntryPoint(authenticationEntryPoint);

        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
    }

Answer 15

做一个单class就好了，这样就好了：

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

            @Override
            public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
                final 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", "Authorization, Content-Type, enctype");
                response.setHeader("Access-Control-Max-Age", "3600");
                if (HttpMethod.OPTIONS.name().equalsIgnoreCase(((HttpServletRequest) req).getMethod())) {
                    response.setStatus(HttpServletResponse.SC_OK);
                } else {
                    chain.doFilter(req, res);
                }
            }

            @Override
            public void destroy() {
            }

            @Override
            public void init(FilterConfig config) throws ServletException {
            }
        }

Answer 16

这对我有用，可以在 Spring 启动和 React

之间禁用 CORS

@Configuration
public class CorsConfig implements WebMvcConfigurer {

    /**
     * Overriding the CORS configuration to exposed required header for ussd to work
     *
     * @param registry CorsRegistry
     */

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedMethods("*")
                .allowedHeaders("*")
                .allowCredentials(true)
                .maxAge(4800);
    }
}

我必须像下面一样修改安全配置：

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.csrf().disable()
                    .cors().configurationSource(new CorsConfigurationSource() {

                @Override
                public CorsConfiguration getCorsConfiguration(HttpServletRequest request) {
                    CorsConfiguration config = new CorsConfiguration();
                    config.setAllowedHeaders(Collections.singletonList("*"));
                    config.setAllowedMethods(Collections.singletonList("*"));
                    config.addAllowedOrigin("*");
                    config.setAllowCredentials(true);
                    return config;
                }
            }).and()
                    .antMatcher("/api/**")
                    .authorizeRequests()
                    .anyRequest().authenticated()
                    .and().httpBasic()
                    .and().sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                    .and().exceptionHandling().accessDeniedHandler(apiAccessDeniedHandler());
        }

Answer 17

我很惊讶只发现 Eduardo Dennis 指出了最新的解决方案，它更简单并且不需要编写您自己的过滤器 classes：它使用

org.springframework.web.bind.annotation.CrossOrigin 控制器上的注释
并将 and().cors() 添加到您的 Spring 安全配置中。

这就是您要做的全部！

您可以像这样使用 @CrossOrigin 注释：

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/api")
@CrossOrigin
public class BackendController {
    ...
}

如果要配置 allowedHeaders、methods、origins 等，只需将这些值添加到注释中，如下所示：@CrossOrigin(origins = "http://localhost:50029", maxAge = 3600).

使用@CrossOrigin注解，Spring安全配置变得异常简单。只需将 and().cors() 添加到您的 WebSecurityConfig.java class:

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

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

就是这样！您可以删除您的 Filter/CORSFilter classes。如果你想添加一个全局配置，你也可以声明一个 CorsConfigurationSource 。参见 this great answer or this blog post by Sébastien Deleuze)。 Spring 开发人员也明确表示：

This approach supersedes the filter-based approach previously recommended.

因此，接受的答案已过时。这也是一个完整的示例项目：https://github.com/jonashackt/microservice-api-spring-boot

Answer 18

要在全球启用 CORS，您需要在两个地方进行更改：

1. Spring开机：

@Configuration
public class CorsConfiguration extends WebMvcConfigurationSupport {  
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**").allowedOrigins("*").allowedMethods("*")
        .allowCredentials(true);
    }
}

您可以在 WebMvcConfigurerAdapter 中执行相同的操作，或者创建 WebMvcConfigurer 的 bean。

2。 Spring 安全性

@Override
    protected void configure(HttpSecurity http) throws Exception {
        http.cors().and()
                .authorizeRequests()
                .antMatchers(HttpMethod.OPTIONS).permitAll() //Permits your preflight request
}

在 Spring Boot 2.3 上工作。3.RELEASE

Answer 19

简单的方法是在 spring 引导应用程序 class（class 和 @SpringBootApplication）中创建一个 bean，如下所示：

注意！我在下面的“setAllowedOrigins()”中指定了“http://localhost:4200”，因为运行本地主机上的应用程序并使用 angular 默认端口。

@Bean
public CorsFilter corsFilter(){
    CorsConfiguration corsConfiguration = new CorsConfiguration();
    corsConfiguration.setAllowCredentials(true);
    corsConfiguration.setAllowedOrigins(Arrays.asList("http://localhost:4200"));
    corsConfiguration.setAllowedHeaders(Arrays.asList("Origin","Access-Control-Allow-Origin","Content-Type",
            "Accept", "Authorization", "Origin, Accept", "X-Requested-With",
            "Access-Control-Request-Method", "Access-Control-Request-Headers"));
    corsConfiguration.setExposedHeaders(Arrays.asList("Origin", "Content-Type", "Accept","Authorization",
            "Access-Control-Allow-Origin", "Access-Control-Allow-Origin", "Access-Control-Allow-Credentials"));
    corsConfiguration.setAllowedMethods(Arrays.asList("GET", "POST","PUT","DELETE","OPTIONS"));
    UrlBasedCorsConfigurationSource urlBasedCorsConfigurationSource = new UrlBasedCorsConfigurationSource();
    urlBasedCorsConfigurationSource.registerCorsConfiguration("/**", corsConfiguration);
    return new CorsFilter(urlBasedCorsConfigurationSource);
}

Answer 20

您可以在 sprıng boot

中的每个 restController class 上使用此注释

@CrossOrigin("*")

如果您正在使用 spring 安全性，您需要在任何具有扩展 extends WebSecurityConfigurerAdapter

的 class 上使用它

@Bean
CorsConfigurationSource corsConfigurationSource() {
    CorsConfiguration configuration = new CorsConfiguration();
    configuration.setAllowedOrigins(Arrays.asList("https://example.com"));
    configuration.setAllowedMethods(Arrays.asList("GET","POST"));
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", configuration);
    return source;
}

spring-boot 和 angularjs 的 CORS 不工作

CORS with spring-boot and angularjs not working

rest

spring-mvc

cors

angularjs

spring-boot