Java操作ElasticSearch之创建索引

ElasticSearch客户端提供了多种方式的数据创建方式，包括json串,map,内置工具；我们正式开始一般用json格式，借助json工具框架，比如gson ,json-lib,fastjson等等；

我们给下实例：

package  com.java1234.es;

import  java.net.InetAddress;
import  java.util.Date;
import  java.util.HashMap;
import  java.util.Map;

import  org.elasticsearch.action.index.IndexResponse;
import  org.elasticsearch.client.transport.TransportClient;
import  org.elasticsearch.common.settings.Settings;
import  org.elasticsearch.common.transport.InetSocketTransportAddress;
import  org.elasticsearch.common.xcontent.XContentFactory;
import  org.elasticsearch.common.xcontent.XContentType;
import  org.elasticsearch.transport.client.PreBuiltTransportClient;
import  org.junit.After;
import  org.junit.Before;
import  org.junit.Test;

import  com.google.gson.JsonObject;

/**
 * ElasticSearch客户端连接服务器测试
 * @author Administrator
 *
 */
public  class  EsTest {

    private  static  String host= "192.168.1.108" ;  // 服务器地址

    private  static  int  port= 9300 ;  // 端口

    private  TransportClient client= null ;

    /**
     * 获取连接
     * @return
     */
    @SuppressWarnings ({  "unchecked" ,  "resource"  })
    @Before
    public  void  getCient() throws  Exception{
       client =  new  PreBuiltTransportClient(Settings.EMPTY)
                   .addTransportAddress( new  InetSocketTransportAddress(InetAddress.getByName(EsTest.host), EsTest.port));
    }

    /**
     * 关闭连接
     * @param client
     */
    @After
    public  void  close(){
        if (client!= null ){
            client.close();
        }
    }

    /**
     * 添加索引
     */
    @Test
    public  void  testIndex() throws  Exception{
        IndexResponse response =client.prepareIndex( "twitter" ,  "tweet" ,  "1" )
            .setSource(XContentFactory.jsonBuilder()
                    .startObject()
                    .field( "user" ,  "kimchy" )
                    .field( "postDate" ,  new  Date())
                    .field( "message" ,  "trying out Elasticsearch" )
                .endObject()
                    )
            .get();
        System.out.println( "索引名称：" +response.getIndex());
        System.out.println( "类型：" +response.getType());
        System.out.println( "文档ID：" +response.getId());  // 第一次使用是1
        System.out.println( "当前实例状态：" +response.status());
    }

    /**
     * 添加索引
     */
    @Test
    public  void  testIndex2() throws  Exception{
        String json =  "{"  +
                "\"user\":\"kimchy\","  +
                "\"postDate\":\"2013-01-30\","  +
                "\"message\":\"trying out Elasticsearch\""  +
            "}" ;

        IndexResponse response =client.prepareIndex( "weibo" ,  "tweet" )
            .setSource(json,XContentType.JSON)
            .get();
        System.out.println( "索引名称：" +response.getIndex());
        System.out.println( "类型：" +response.getType());
        System.out.println( "文档ID：" +response.getId());  // 第一次使用是1
        System.out.println( "当前实例状态：" +response.status());
    }

    /**
     * 添加索引
     */
    @Test
    public  void  testIndex3() throws  Exception{
        Map json =  new  HashMap();
        json.put( "user" , "kimchy" );
        json.put( "postDate" , new  Date());
        json.put( "message" , "trying out Elasticsearch" );

        IndexResponse response =client.prepareIndex( "qq" ,  "tweet" )
            .setSource(json)
            .get();
        System.out.println( "索引名称：" +response.getIndex());
        System.out.println( "类型：" +response.getType());
        System.out.println( "文档ID：" +response.getId());  // 第一次使用是1
        System.out.println( "当前实例状态：" +response.status());
    }

    /**
     * 添加索引
     */
    @Test
    public  void  testIndex4() throws  Exception{
        JsonObject jsonObject= new  JsonObject();
        jsonObject.addProperty( "user" ,  "kimchy" );
        jsonObject.addProperty( "postDate" ,  "1989-11-11" );
        jsonObject.addProperty( "message" ,  "trying out Elasticsearch" );

        IndexResponse response =client.prepareIndex( "qq" ,  "tweet" )
            .setSource(jsonObject.toString(),XContentType.JSON)
            .get();
        System.out.println( "索引名称：" +response.getIndex());
        System.out.println( "类型：" +response.getType());
        System.out.println( "文档ID：" +response.getId());  // 第一次使用是1
        System.out.println( "当前实例状态：" +response.status());
    }

}