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This article introduces the knowledge of "how to use Spring4+ZooKeeper configuration center". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

One: ZooKeeper connection configuration class

@ Configuration

@ PropertySource ("classpath:context-datasource.properties")

Public class ZooKeeperElConfig {

@ Value ("${zookeeper.cluster.url}")

Private String zooKeeperClusterUrl

@ Value ("${zookeeper.root.path}")

Private String zooKeeperRootPath

@ Autowired

Private Environment environment

@ Bean

Public static PropertySourcesPlaceholderConfigurer propertyConfigure () {

Return new PropertySourcesPlaceholderConfigurer ()

}

@ Bean (name = "zkClient")

Public CuratorFramework zkClient () {

CuratorFramework client = CuratorFrameworkFactory.builder () .connectString (zooKeeperClusterUrl)

.sessionTimeoutMs (5000) .retryPolicy (new ExponentialBackoffRetry (1000, 3)) .namespace (zooKeeperRootPath) .retryPolicy ()

Client.start ()

Return client

}

}

Second: read ZooKeeper parameters tool class

@ Component ("systemElConfig")

Public class SystemElConfig {

@ Autowired

CuratorFramework zkClient

Public String getProperty (String propertyName) {

String property = ""

Try {

Property = new String (zkClient.getData () .forPath ("/" + propertyName))

}

Catch (Exception e) {

E.printStackTrace ()

}

Return property

}

}

Third: examples of parameter information in ZooKeeper referenced by other configuration classes

@ Value ("# {systemElConfig.getProperty ('mailHost')}")

Private String mailHost

Using Spring EL expression annotation method

This is the end of "how to use Spring4+ZooKeeper configuration Center". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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