java客户端线上Apollo服务端的实现

package com.fqgj.rest;import com.google.common.base.Charsets;import com.ctrip.framework.apollo.Config;import com.ctrip.framework.apollo.ConfigChangeListener;import com.ctrip.framework.apollo.ConfigService;import com.ctrip.framework.apollo.model.ConfigChange;import com.ctrip.framework.apollo.model.ConfigChangeEvent;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;/** * @author Jason Song(song_s@ctrip.com) */public class SimpleApolloConfigDemo { private static final Logger logger = LoggerFactory.getLogger(SimpleApolloConfigDemo.class); private String DEFAULT_VALUE = "undefined"; private Config config; public SimpleApolloConfigDemo() {  ConfigChangeListener changeListener = new ConfigChangeListener() {   @Override   public void onChange(ConfigChangeEvent changeEvent) {    logger.info("Changes for namespace {}", changeEvent.getNamespace());    for (String key : changeEvent.changedKeys()) {     ConfigChange change = changeEvent.getChange(key);     logger.info("Change - key: {}, oldValue: {}, newValue: {}, changeType: {}",       change.getPropertyName(), change.getOldValue(), change.getNewValue(),       change.getChangeType());    }   }  };  config = ConfigService.getAppConfig();  config.addChangeListener(changeListener); } private String getConfig(String key) {  String result = config.getProperty(key, DEFAULT_VALUE);  logger.info(String.format("Loading key : %s with value: %s", key, result));  return result; } public static void main(String[] args) throws IOException {  SimpleApolloConfigDemo apolloConfigDemo = new SimpleApolloConfigDemo();  System.out.println(    "Apollo Config Demo. Please input key to get the value. Input quit to exit.");  while (true) {   System.out.print("> ");   String input = new BufferedReader(new InputStreamReader(System.in, Charsets.UTF_8)).readLine();   if (input == null || input.length() == 0) {    continue;   }   input = input.trim();   if (input.equalsIgnoreCase("quit")) {    System.exit(0);   }   String ccc= apolloConfigDemo.getConfig(input);   System.out.println(ccc);  } }}