我尝试覆盖 spring websocket plugin 的默认配置对于 Grails,像这样:
@Configuration
@EnableWebSocketMessageBroker
class CorsWebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
@Override
void configureMessageBroker(MessageBrokerRegistry messageBrokerRegistry) {
messageBrokerRegistry.enableSimpleBroker "/queue", "/topic"
messageBrokerRegistry.setApplicationDestinationPrefixes "/app"
}
@Override
void registerStompEndpoints(StompEndpointRegistry stompEndpointRegistry) {
StompWebSocketEndpointRegistration registration = stompEndpointRegistry.addEndpoint("/stomp")
registration.setAllowedOrigins('http://localhost', 'http://localhost:8080')
registration.withSockJS().setSupressCors(false)
}
// [...]
}
我也尝试过执行 .setAllowedOrigins('*'),但它仍然不起作用。
但是,当我注册客户端时,“Access-Control-Allow-Origin” header 从未在/stomp/info 端点上设置。我总是收到“XMLHttpRequest 无法加载 http://localhost:8080/app/stomp/info 。请求的资源上不存在 'Access-Control-Allow-Origin' header 。因此不允许访问 Origin ' http://localhost 。”
最佳答案
我使用 https://github.com/davidtinker/grails-cors 中的信息解决了这个问题。 Grails-cors 插件不适用于 grails 3.x,但存储库自述文件中有一些信息。我将其复制/粘贴到此处:
此插件不适用于 Grails 3。要在 Grails 3 项目中处理 CORS,您只需在 src/main/java
下的某个位置创建一个 servlet 过滤器即可:
@Priority(Integer.MIN_VALUE)
public class CorsFilter extends OncePerRequestFilter {
public CorsFilter() { }
@Override
protected void doFilterInternal(HttpServletRequest req, HttpServletResponse resp, FilterChain chain)
throws ServletException, IOException {
String origin = req.getHeader("Origin");
boolean options = "OPTIONS".equals(req.getMethod());
if (options) {
if (origin == null) return;
resp.addHeader("Access-Control-Allow-Headers", "origin, authorization, accept, content-type, x-requested-with");
resp.addHeader("Access-Control-Allow-Methods", "GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS");
resp.addHeader("Access-Control-Max-Age", "3600");
}
resp.addHeader("Access-Control-Allow-Origin", origin == null ? "*" : origin);
resp.addHeader("Access-Control-Allow-Credentials", "true");
if (!options) chain.doFilter(req, resp);
}
}
引用grails-app/conf/spring/resources.groovy
中的过滤器:
beans = {
corsFilter(CorsFilter)
}
希望这对某人有帮助。
关于grails - 如何在 Grails websocket 插件中启用跨源请求,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30891198/