Elasticsearch java client 获取mapping

一、获取索引的所有mapping

通过java客户端获取mapping：

package elasticsearch.in.action.client;import java.net.InetAddress;import java.net.UnknownHostException;import org.elasticsearch.client.transport.TransportClient;import org.elasticsearch.cluster.metadata.MappingMetaData;import org.elasticsearch.common.collect.ImmutableOpenMap;import org.elasticsearch.common.settings.Settings;import org.elasticsearch.common.transport.InetSocketTransportAddress;public class TransClient {    public static String clusterName = "elasticsearch";// 集群名称    public static String serverIP = "127.0.0.1";// 服务器IP    public static void main(String[] args) {        System.out.println(getMapping("news", "sportnews"));    }    public static String getMapping(String indexname, String typename) {        Settings settings = Settings.settingsBuilder().put("cluster.name", clusterName).build();        String mapping="";        try {            TransportClient client = TransportClient.builder().settings(settings).build()                    .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(serverIP), 9300));            ImmutableOpenMap<String, MappingMetaData> mappings = client.admin().cluster().prepareState().execute()                    .actionGet().getState().getMetaData().getIndices().get(indexname).getMappings();            mapping = mappings.get(typename).source().toString();            client.close();        } catch (UnknownHostException e) {            e.printStackTrace();        }        return mapping;    }}

二、获取所有的type以及每个type的mapping

mapping信息都是ImmutableOpenMap

for (ObjectObjectCursor<String, MappingMetaData> cursor : mappings) {            System.out.println(cursor.key); // 索引下的每个type            System.out.println(cursor.value.getSourceAsMap()); // 每个type的mapping}