AppCache.java

package hello;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.HashMap;
import java.util.Map;

@Component
@Slf4j
public class AppCache extends BaseCacheUpdateJob {

 private Map<String, String> map = new HashMap<>();

 @Autowired
 public AppCache() {
 }

 @Override
 public long getPeriodInSecond() {
 return PERIOD_ONE_MINUTE;
 }

 @Override
 public boolean isEssential() {
 return true;
 }

 public String getValueByKey(String appId) {
 return map.getOrDefault(appId, "not find in appCache");
 }

 @Override
 public boolean update() {
 map.put("add", "0");
 return true;
 }
}