Giv*_*nga 14 java spring spring-boot spring-cloud netflix-zuul
启动应用程序:
@SpringBootApplication
@EnableZuulProxy
public class ZuulServer {
public static void main(String[] args) {
new SpringApplicationBuilder(ZuulServer.class).web(true).run(args);
}
}
我的YAML文件是这样的:
server:
port:8080
spring:
application:
name: zuul
eureka:
client:
enabled: true
serviceUrl:
defaultZone: http://localhost:8761/eureka/
zuul:
proxy:
route:
springapp: /springapp
我有一个名为springapp的微服务应用程序(在端口8081上),并有一些休息服务.以下是我的客户端UI应用:
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script type="text/javascript" src="js/libs/jquery/jquery.min.js" ></script>
</head>
<body>
<script type="text/javascript">
$.ajax({
url: 'http://localhost:8080/zuul/springapp/departments',
type: 'GET'
}).done(function (data) {
consoe.log(data);
document.write(data);
});
</script>
</body>
</html>
但我得到了一个
XMLHttpRequest cannot load http://localhost:8080/zuul/springapp/departments. No
'Access-Control-Allow-Origin' header is present on the requested
resource. Origin 'http://localhost:8383' is therefore not allowed access.
此UI HTML5应用程序位于http:// localhost:8383/SimpleAPp/index.html.CORS,CORS,CORS ......请帮忙.BTW http:// localhost:8080/zuul/springapp/departments在浏览器地址栏上返回一个json列表.spring.io博客在这里说没有必要使用过滤器,因为zuulproxy负责这个,但我不知道它为什么不适合我.
Gri*_*pal 36
将这段代码添加到使用@EnableZuulProxy注释的类中应该可以解决问题.
@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);
}
我有一个类似的问题，Angular Web 应用程序使用由 Spring Boot 和 Zuul 和 Spring Security 实现的 RESTful 服务。
上述解决方案均无效。我意识到问题不在于 Zuul，而在于 Spring Security。
正如官方文档（带有 Spring Security 的 CORS）所述，在使用 Spring Security 时，CORS 必须在 Spring Security 之前进行配置。
最后，我能够将 Grinish 尼泊尔（参见先前的答案）的解决方案整合到一个有效的解决方案中。
不用多说，这里是使用 Spring Security 和 Zuul 启用 CORS 的代码：
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
//irrelevant for this problem
@Autowired
private MyBasicAuthenticationEntryPoint authenticationEntryPoint;
@Override
protected void configure(HttpSecurity http) throws Exception {
http
//configure CORS -- uses a Bean by the name of corsConfigurationSource (see method below)
//CORS must be configured prior to Spring Security
.cors().and()
//configuring security - irrelevant for this problem
.authorizeRequests()
.anyRequest().authenticated()
.and()
.httpBasic()
.authenticationEntryPoint(authenticationEntryPoint);
//irrelevant for this problem
http.addFilterAfter(new CustomFilter(),
BasicAuthenticationFilter.class);
}
//The CORS filter bean - Configures allowed CORS any (source) to any
//(api route and method) endpoint
@Bean
CorsConfigurationSource corsConfigurationSource() {
final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
final CorsConfiguration config = new CorsConfiguration();
config.setAllowCredentials(true);
config.addAllowedOrigin(CorsConfiguration.ALL);
config.addAllowedHeaders(Collections.singletonList(CorsConfiguration.ALL));
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 source;
}
//configuring BA usernames and passwords - irrelevant for this problem
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
...
}
}
当您的应用程序运行时,http://localhost:8383您只能进行AJAX调用http://localhost:8383.Zuul没有,也无法改变这一点.
什么Zuul能做的就是如请求映射http://localhost:8383/zuul/到http://localhost:8080/zuul/.但是您的浏览器必须调用http://localhost:8383/zuul/springapp/departments,您必须配置该映射.
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