fix: 解决html页面缓存的问题。

framework/gateway/src/main/java/io/metersphere/gateway/filter/HtmlResourceFilter.java

@@ -0,0 +1,43 @@
+package io.metersphere.gateway.filter;
+
+import org.springframework.cloud.gateway.filter.GatewayFilter;
+import org.springframework.cloud.gateway.filter.GatewayFilterChain;
+import org.springframework.core.Ordered;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
+import org.springframework.http.server.reactive.ServerHttpResponse;
+import org.springframework.stereotype.Component;
+import org.springframework.web.server.ServerWebExchange;
+import reactor.core.publisher.Mono;
+
+import java.util.HashMap;
+
+@Component
+public class HtmlResourceFilter implements GatewayFilter, Ordered {
+
+    private static final HashMap<String, String> NoCacheHeaders = new HashMap<>();
+
+    static {
+        NoCacheHeaders.put(HttpHeaders.CACHE_CONTROL, "no-cache, no-store, must-revalidate");
+        NoCacheHeaders.put(HttpHeaders.PRAGMA, "no-cache");
+        NoCacheHeaders.put(HttpHeaders.EXPIRES, "0");
+    }
+
+    @Override
+    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
+        return chain.filter(exchange).then(
+                Mono.fromRunnable(() -> {
+                    ServerHttpResponse response = exchange.getResponse();
+                    if (exchange.getRequest().getMethod() == HttpMethod.GET && response.getHeaders().getContentType() == MediaType.TEXT_HTML) {
+                        response.getHeaders().setAll(NoCacheHeaders);
+                    }
+                })
+        );
+    }
+
+    @Override
+    public int getOrder() {
+        return 99;
+    }
+}