今天就跟大家聊聊有关NacosNamingService中getServicesOfServer的作用是什么，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。
nacos-1.1.3/client/src/main/java/com/alibaba/nacos/client/naming/NacosNamingService.java
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public class NacosNamingService implements NamingService {
private static final String DEFAULT_PORT = "8080";
private static final long DEFAULT_HEART_BEAT_INTERVAL = TimeUnit.SECONDS.toMillis(5);
/**
* Each Naming instance should have different namespace.
*/
private String namespace;
private String endpoint;
private String serverList;
private String cacheDir;
private String logName;
private HostReactor hostReactor;
private BeatReactor beatReactor;
private EventDispatcher eventDispatcher;
private NamingProxy serverProxy;
//......
@Override
public ListView<String> getServicesOfServer(int pageNo, int pageSize) throws NacosException {
return serverProxy.getServiceList(pageNo, pageSize, Constants.DEFAULT_GROUP);
}
@Override
public ListView<String> getServicesOfServer(int pageNo, int pageSize, String groupName) throws NacosException {
return getServicesOfServer(pageNo, pageSize, groupName, null);
}
@Override
public ListView<String> getServicesOfServer(int pageNo, int pageSize, AbstractSelector selector)
throws NacosException {
return getServicesOfServer(pageNo, pageSize, Constants.DEFAULT_GROUP, selector);
}
@Override
public ListView<String> getServicesOfServer(int pageNo, int pageSize, String groupName, AbstractSelector selector) throws NacosException {
return serverProxy.getServiceList(pageNo, pageSize, groupName, selector);
}
//......
}getServicesOfServer方法请求的是serverProxy.getServiceList，其pageNo从1开始
nacos-1.1.3/client/src/main/java/com/alibaba/nacos/client/naming/net/NamingProxy.java
public class NamingProxy {
private static final int DEFAULT_SERVER_PORT = 8848;
private int serverPort = DEFAULT_SERVER_PORT;
private String namespaceId;
private String endpoint;
private String nacosDomain;
private List<String> serverList;
private List<String> serversFromEndpoint = new ArrayList<String>();
private long lastSrvRefTime = 0L;
private long vipSrvRefInterMillis = TimeUnit.SECONDS.toMillis(30);
private Properties properties;
//......
public ListView<String> getServiceList(int pageNo, int pageSize, String groupName) throws NacosException {
return getServiceList(pageNo, pageSize, groupName, null);
}
public ListView<String> getServiceList(int pageNo, int pageSize, String groupName, AbstractSelector selector) throws NacosException {
Map<String, String> params = new HashMap<String, String>(4);
params.put("pageNo", String.valueOf(pageNo));
params.put("pageSize", String.valueOf(pageSize));
params.put(CommonParams.NAMESPACE_ID, namespaceId);
params.put(CommonParams.GROUP_NAME, groupName);
if (selector != null) {
switch (SelectorType.valueOf(selector.getType())) {
case none:
break;
case label:
ExpressionSelector expressionSelector = (ExpressionSelector) selector;
params.put("selector", JSON.toJSONString(expressionSelector));
break;
default:
break;
}
}
String result = reqAPI(UtilAndComs.NACOS_URL_BASE + "/service/list", params);
JSONObject json = JSON.parseObject(result);
ListView<String> listView = new ListView<String>();
listView.setCount(json.getInteger("count"));
listView.setData(JSON.parseObject(json.getString("doms"), new TypeReference<List<String>>() {
}));
return listView;
}
//......
}NamingProxy的getServiceList方法请求的是/service/list接口，它将返还的数据组装为ListView结构
nacos-1.1.3/api/src/main/java/com/alibaba/nacos/api/naming/pojo/ListView.java
public class ListView<T> {
private List<T> data;
private int count;
public List<T> getData() {
return data;
}
public void setData(List<T> data) {
this.data = data;
}
public int getCount() {
return count;
}
public void setCount(int count) {
this.count = count;
}
@Override
public String toString() {
return JSON.toJSONString(this);
}
}ListView包含了count属性及List类型的data属性
NacosNamingService的getServicesOfServer方法请求的是serverProxy.getServiceList，其pageNo从1开始；NamingProxy的getServiceList方法请求的是/service/list接口，它将返还的数据组装为ListView结构；ListView包含了count属性及List类型的data属性
看完上述内容，你们对NacosNamingService中getServicesOfServer的作用是什么有进一步的了解吗？如果还想了解更多知识或者相关内容，请关注亿速云行业资讯频道，感谢大家的支持。
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原文链接：https://my.oschina.net/go4it/blog/3115530
