网站都有什么类型/网站空间

上一讲主要讲了Apollo配置中心如何通过client与之交互，演示了java如何接入的方式，接下来介绍的是Apollo界面的一些常规操作。

创建部门

方式一：在ApolloPortalDB的ServerConfig中直接修改key=organizations的value值。

方式二：在Portal界面上选择管理员工具-系统参数

创建用户

修改项目信息

部门选择“技术研发部”，项目负责人选择“jeff”


回到首页进入JeffApp项目就可以看到，信息已经更新了

创建public命名空间

添加public类型的Namespace




添加配置项


发布一下即可。

公共Namespace演示

代码在ApolloConfigDemo

package com.jeff.apollo.demo;import com.ctrip.framework.apollo.*;
import com.ctrip.framework.apollo.core.enums.ConfigFileFormat;
import com.ctrip.framework.apollo.internals.YamlConfigFile;
import com.ctrip.framework.apollo.model.ConfigChange;
import com.ctrip.framework.apollo.model.ConfigChangeEvent;
import com.ctrip.framework.apollo.model.ConfigFileChangeEvent;
import com.ctrip.framework.foundation.Foundation;
import com.google.common.base.Charsets;
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 ApolloConfigDemo {private static final Logger logger = LoggerFactory.getLogger(ApolloConfigDemo.class);private String DEFAULT_VALUE = "undefined";private Config config;private Config yamlConfig;private Config publicConfig;private ConfigFile publicConfigFile;private ConfigFile applicationConfigFile;private ConfigFile xmlConfigFile;private YamlConfigFile yamlConfigFile;public ApolloConfigDemo() {ConfigChangeListener changeListener = new ConfigChangeListener() {@Overridepublic 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);yamlConfig = ConfigService.getConfig("application.yaml");yamlConfig.addChangeListener(changeListener);publicConfig = ConfigService.getConfig("TECH.public");publicConfig.addChangeListener(changeListener);applicationConfigFile = ConfigService.getConfigFile("application", ConfigFileFormat.Properties);publicConfigFile = ConfigService.getConfigFile("TECH.public", ConfigFileFormat.Properties);// datasources.xmlxmlConfigFile = ConfigService.getConfigFile("datasources", ConfigFileFormat.XML);xmlConfigFile.addChangeListener(new ConfigFileChangeListener() {@Overridepublic void onChange(ConfigFileChangeEvent changeEvent) {logger.info(changeEvent.toString());}});// application.yamlyamlConfigFile = (YamlConfigFile) ConfigService.getConfigFile("application", ConfigFileFormat.YAML);}private String getConfig(String key) {String result = config.getProperty(key, DEFAULT_VALUE);if (DEFAULT_VALUE.equals(result)) {result = publicConfig.getProperty(key, DEFAULT_VALUE);}if (DEFAULT_VALUE.equals(result)) {result = yamlConfig.getProperty(key, DEFAULT_VALUE);}logger.info(String.format("Loading key : %s with value: %s", key, result));return result;}private void print(String namespace) {switch (namespace) {case "TECH.public":print(publicConfigFile);return;case "application":print(applicationConfigFile);return;case "xml":print(xmlConfigFile);return;case "yaml":printYaml(yamlConfigFile);return;}}private void print(ConfigFile configFile) {if (!configFile.hasContent()) {System.out.println("No config file content found for " + configFile.getNamespace());return;}System.out.println("=== Config File Content for " + configFile.getNamespace() + " is as follows: ");System.out.println(configFile.getContent());}private void printYaml(YamlConfigFile configFile) {System.out.println("=== Properties for " + configFile.getNamespace() + " is as follows: ");System.out.println(configFile.getContent());}private void printEnvInfo() {String message = String.format("AppId: %s, Env: %s, DC: %s, IP: %s", Foundation.app().getAppId(), Foundation.server().getEnvType(), Foundation.server().getDataCenter(),Foundation.net().getHostAddress());System.out.println(message);}public static void main(String[] args) throws IOException {ApolloConfigDemo apolloConfigDemo = new ApolloConfigDemo();apolloConfigDemo.printEnvInfo();System.out.println("Apollo Config Demo. Please input key to get the value.");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();try {if (input.equalsIgnoreCase("TECH.public")) {apolloConfigDemo.print("TECH.public");continue;}if (input.equalsIgnoreCase("application")) {apolloConfigDemo.print("application");continue;}if (input.equalsIgnoreCase("xml")) {apolloConfigDemo.print("xml");continue;}if (input.equalsIgnoreCase("yaml") || input.equalsIgnoreCase("yml")) {apolloConfigDemo.print("yaml");continue;}if (input.equalsIgnoreCase("quit")) {System.exit(0);}apolloConfigDemo.getConfig(input);} catch (Throwable ex) {logger.error("some error occurred", ex);}}}
}

启动后在控制台输入TECH.public，可以打印出公共命名空间中所有的配置项，这里只有一个是poolsize，然后输入poolsize，取值逻辑如下

  private String getConfig(String key) {String result = config.getProperty(key, DEFAULT_VALUE);if (DEFAULT_VALUE.equals(result)) {result = publicConfig.getProperty(key, DEFAULT_VALUE);}if (DEFAULT_VALUE.equals(result)) {result = yamlConfig.getProperty(key, DEFAULT_VALUE);}logger.info(String.format("Loading key : %s with value: %s", key, result));return result;}

解释：先从默认的namespace中获取如果没有占到则从公共命名空间中找。

> TECH.public
=== Config File Content for TECH.public.properties is as follows: 
poolsize=60> poolsize
10:32:40.533 [main] INFO com.jeff.apollo.demo.ApolloConfigDemo - Loading key : poolsize with value: 60
> 

如果此时我们想要在application这个私有namespace中自己定义poolsize：




那么现在输入poolsize时会打印多少呢？可以看到打印了30.自定义的poolsize覆盖了公共namespace。

poolsize
10:41:42.829 [main] INFO com.jeff.apollo.demo.ApolloConfigDemo - Loading key : poolsize with value: 30

XML私有空间演示

我们再再appId为JeffApp的项目下创建一个xml格式的私有命名空间并提交发布。




继续输入xml

> xml
=== Config File Content for datasources.xml is as follows: 
<a>I am datasource</a>> application
=== Config File Content for application.properties is as follows: 
batch=78
timeout=90
> 

本地缓存

其实我们创建的xml私有空间、public公共空间及私有默认空间都会在本地缓存文件。
可以看到在appId=JeffApp，默认集群default下三个命名空间：application、xml、public