public List<MetaData> getMetaDataCache() throws JsonProcessingException {
        ResponseEntity<List> response = TEMPLATE.exchange(baseUrl + "/actuator/metadata", HttpMethod.GET, null, List.class);
        List body = response.getBody();
        Map<String, MetaData> s = (Map<String, MetaData>) body.get(0);
        List<MetaData> metaDataList = new ArrayList<>();
        for (Map.Entry entry : s.entrySet()) {
            String json = MAPPER.writeValueAsString(entry.getValue());
            MetaData metaData = MAPPER.readValue(json, MetaData.class);
            metaDataList.add(metaData);
        }
        return metaDataList;
    }
get meta data cache.
@return List List
@throws JsonProcessingException JsonProcessingException
shenyu-e2e/shenyu-e2e-client/src/main/java/org/apache/shenyu/e2e/client/gateway/GatewayClient.java