NacosNamingService中getServicesOfServer的作用是什么

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。

NacosNamingService

nacos-1.1.3/client/src/main/java/com/alibaba/nacos/client/naming/NacosNamingService.java

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 getServicesOfServer(int pageNo, int pageSize) throws NacosException {        return serverProxy.getServiceList(pageNo, pageSize, Constants.DEFAULT_GROUP);    }    @Override    public ListView getServicesOfServer(int pageNo, int pageSize, String groupName) throws NacosException {        return getServicesOfServer(pageNo, pageSize, groupName, null);    }    @Override    public ListView getServicesOfServer(int pageNo, int pageSize, AbstractSelector selector)        throws NacosException {        return getServicesOfServer(pageNo, pageSize, Constants.DEFAULT_GROUP, selector);    }    @Override    public ListView 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

NamingProxy

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 serverList;    private List serversFromEndpoint = new ArrayList();    private long lastSrvRefTime = 0L;    private long vipSrvRefInterMillis = TimeUnit.SECONDS.toMillis(30);    private Properties properties;    //......    public ListView getServiceList(int pageNo, int pageSize, String groupName) throws NacosException {        return getServiceList(pageNo, pageSize, groupName, null);    }    public ListView getServiceList(int pageNo, int pageSize, String groupName, AbstractSelector selector) throws NacosException {        Map params = new HashMap(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 listView = new ListView();        listView.setCount(json.getInteger("count"));        listView.setData(JSON.parseObject(json.getString("doms"), new TypeReference>() {        }));        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

ListView

nacos-1.1.3/api/src/main/java/com/alibaba/nacos/api/naming/pojo/ListView.java

public class ListView {    private List data;    private int count;    public List getData() {        return data;    }    public void setData(List 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

小结

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

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