@GetMapping("/ruleMatchCache")
    public Flux<Map<String, Map<String, RuleData>>> getRuleMatchCache() {
        return Flux.just(MatchDataCache.getInstance().getRuleMatchCache());
    }
rule match cache flux.

@return the flux
shenyu-web/src/main/java/org/apache/shenyu/web/endpoint/ShenyuControllerEndpoint.java