Pre Merge pull request !8 from 覃盛春/master

ruoyi-gateway/src/main/java/com/ruoyi/gateway/config/CrosConfig.java

@@ -0,0 +1,39 @@
+package com.ruoyi.gateway.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.server.reactive.ServerHttpRequest;
+import org.springframework.http.server.reactive.ServerHttpResponse;
+import org.springframework.web.cors.reactive.CorsUtils;
+import org.springframework.web.server.ServerWebExchange;
+import org.springframework.web.server.WebFilter;
+import org.springframework.web.server.WebFilterChain;
+import reactor.core.publisher.Mono;
+
+
+@Configuration
+public class CrosConfig {
+
+    @Bean
+    public WebFilter corsFilter() {
+        return (ServerWebExchange ctx, WebFilterChain chain) -> {
+            ServerHttpRequest request = ctx.getRequest();
+            if (CorsUtils.isCorsRequest(request)) {
+                ServerHttpResponse response = ctx.getResponse();
+                HttpHeaders headers = response.getHeaders();
+                headers.add("Access-Control-Allow-Origin", "*");
+                headers.add("Access-Control-Allow-Methods", "*");
+                headers.add("Access-Control-Allow-Headers", "*");
+                headers.add("Access-Control-Allow-Credentials", "true");
+                if (request.getMethod() == HttpMethod.OPTIONS) {
+                    response.setStatusCode(HttpStatus.OK);
+                    return Mono.empty();
+                }
+            }
+            return chain.filter(ctx);
+        };
+    }
+}