Spring 4 + ZooKeeper 配置中心

百聯達發表於2017-04-24
Spring
一：ZooKeeper 連線配置類


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  1. @Configuration
  2. @PropertySource("classpath:context-datasource.properties")
  3. public class ZooKeeperElConfig {

  5.     @Value("${zookeeper.cluster.url}")
  6.     private String zooKeeperClusterUrl;

  8.     @Value("${zookeeper.root.path}")
  9.     private String zooKeeperRootPath;

  11.     @Autowired
  12.     private Environment environment;

  14.     @Bean
  15.     public static PropertySourcesPlaceholderConfigurer propertyConfigure() {
  16.         return new PropertySourcesPlaceholderConfigurer();
  17.     }

  19.     @Bean(name = "zkClient")
  20.     public CuratorFramework zkClient() {
  21.         CuratorFramework client = CuratorFrameworkFactory.builder().connectString(zooKeeperClusterUrl)
  22.                 .sessionTimeoutMs(5000).retryPolicy(new ExponentialBackoffRetry(1000, 3)).namespace(zooKeeperRootPath).build();
  23.         client.start();
  24.         return client;
  25.     }
  26.     
  27.     
  28.     
  29. }

二： 讀取ZooKeeper引數工具類


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  1. @Component("systemElConfig")
  2. public class SystemElConfig {

  4.     @Autowired
  5.     CuratorFramework zkClient;

  7.     public String getProperty(String propertyName) {
  8.         String property = "";
  9.         try {
  10.             property = new String(zkClient.getData().forPath("/" + propertyName));
  11.         }
  12.         catch (Exception e) {
  13.             e.printStackTrace();
  14.         }

  16.         return property;
  17.     }

  19. }
三： 其它配置類引用ZooKeeper中的引數資訊舉例


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  1. @Value("#{systemElConfig.getProperty('mailHost')}")
  2.     private String mailHost;
採用Spring EL 表示式   註解方式

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/28624388/viewspace-2137860/，如需轉載，請註明出處，否則將追究法律責任。

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