elasticsearch2.1.0文档的相关操作

这里记录一下elasticsearch2.1.0文档的相关的操作，代码都是自己经过测试可以直接使用的代码。

/** * es文档相关操作测试类 * @author yujie.wang */public class DocOperator {//es索引private static String INDEX = "megacorp";//索引megacorp下的类型private static String TYPE = "employee";public static void main(String [] args) throws Exception{GenEsClient client = new GenEsClient();DocOperator es = new DocOperator();if(args.length >= 1 && "node".equals(args[0])){System.out.println("genNodeClient");es.getDocument(client.getNodeClient(), INDEX, TYPE, "4");}else {System.out.println("indexgenTransportClient");//得到一条文档//es.getDocument(client.genTransportClient(), INDEX, TYPE, "4");//创建一个文档//es.IndexDocument(client.genTransportClient(), INDEX, TYPE, "5");//删除一个文档//es.delDocument(client.genTransportClient(), INDEX, TYPE, "5");//更新一个文档//es.updateDocument(client.genTransportClient(), INDEX, TYPE, "4");//批量操作//es.bulk(client.genTransportClient());es.checkIndexStatus(INDEX,client.genTransportClient());}}public void checkIndexStatus(String index,Client client){ClusterStateResponse response = client.admin().cluster().prepareState().setIndices(index).execute().actionGet();ImmutableOpenMap<String, MappingMetaData> map = response.getState().getMetaData().index(index).getMappings();Iterator<ObjectObjectCursor<String, MappingMetaData>> it = map.iterator();while(it.hasNext()){ObjectObjectCursor<String, MappingMetaData> objectMap = (ObjectObjectCursor<String, MappingMetaData>)it.next();MappingMetaData mmd = objectMap.value;//System.out.println("result: "+mmd.toString());}}/** * 从索引index中类型为type中获得一个文档 id:id * @param client * @param index * @param type * @param id */public void getDocument(Client client,String index,String type, String id){GetResponse response = client.prepareGet(index, type, id).get();System.out.println(response.getId() + response.getIndex() + response.getType() + response.getVersion()+ response.getSourceAsString());}/** * 向索引index中类型为type中存储一个文档 id：id * @param client * @param index * @param type * @param id * @throws Exception  */public void IndexDocument(Client client,String index,String type, String id) throws Exception{IndexResponse response = client.prepareIndex(index, type, id)        .setSource(XContentFactory.jsonBuilder()    .startObject()        .field("first_name", "yujie5")        .field("last_name", "wang5")        .field("age", "20")        .field("about", "I love to go rock climbing5")        .field("interests", "15")    .endObject()).get();System.out.println(response.isCreated() + response.getId() + response.getIndex()+ response.getType() + response.getVersion());}/** * 从索引index中类型为type中删除一个文档 id:id * @param client * @param index * @param type * @param id */public void delDocument(Client client,String index,String type, String id){DeleteResponse response = client.prepareDelete(index, type, id).get();System.out.println(response.getId() + response.getIndex() + response.getType() + response.getVersion()+ response.isFound());}/** * 更新索引index中类型为type中的一个文档 id:id * @param client * @param index * @param type * @param id * @throws Exception  */public void updateDocument(Client client,String index,String type, String id) throws Exception{UpdateResponse response = null;try {UpdateRequest updateRequest = new UpdateRequest();updateRequest.index(index);updateRequest.type(type);updateRequest.id(id);updateRequest.doc(XContentFactory.jsonBuilder()    .startObject()        .field("first_name", "yujie4")    .endObject());response = client.update(updateRequest).get();} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (ExecutionException e) {// TODO Auto-generated catch blocke.printStackTrace();}System.out.println(response.getId() + response.getIndex() + response.getType() + response.getVersion());}/** * 存在更新 不存在则直接索引一个新文档 * @param client * @param index * @param type * @param id */public void updateAndInsert(Client client,String index,String type, String id){            try {IndexRequest indexRequest = new IndexRequest(index, type, id)        .source("json content");UpdateRequest updateRequest = new UpdateRequest(index, type, id)        .doc("json content")        .upsert(indexRequest);  client.update(updateRequest).get();} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (ExecutionException e) {// TODO Auto-generated catch blocke.printStackTrace();}}/** * 根据给定的索引index 获得多个文档 * @param client */public void getMultiDocument(Client client){MultiGetResponse multiGetItemResponses = client.prepareMultiGet()    .add("twitter", "tweet", "1")               .add("twitter", "tweet", "2", "3", "4")     .add("another", "type", "foo")              .get();for (MultiGetItemResponse itemResponse : multiGetItemResponses) {     GetResponse response = itemResponse.getResponse();    if (response.isExists()) {                              String json = response.getSourceAsString();     }}}/** * 可以执行批量索引和批量删除 * @param client * @throws Exception  */public void bulk(Client client) throws Exception{BulkRequestBuilder bulkRequest = client.prepareBulk();// either use client#prepare, or use Requests# to directly build index/delete requestsbulkRequest.add(client.prepareIndex(INDEX, TYPE, "6")        .setSource(XContentFactory.jsonBuilder()    .startObject()        .field("first_name", "yujie6")        .field("last_name", "wang6")        .field("age", "26")        .field("about", "I love to go rock climbing6")        .field("interests", "16")    .endObject())        );bulkRequest.add(client.prepareDelete(INDEX, TYPE, "3"));BulkResponse bulkResponse = bulkRequest.get();if (bulkResponse.hasFailures()) {    // process failures by iterating through each bulk response itemSystem.out.println("found failed");}}public void bulkProcess(Client client){BulkProcessor bulkProcessor = BulkProcessor.builder(        client,          new BulkProcessor.Listener() {@Overridepublic void afterBulk(long arg0, BulkRequest arg1,BulkResponse arg2) {// TODO Auto-generated method stub}@Overridepublic void afterBulk(long arg0, BulkRequest arg1,Throwable arg2) {// TODO Auto-generated method stub}@Overridepublic void beforeBulk(long arg0, BulkRequest arg1) {// TODO Auto-generated method stub}         })        .setBulkActions(10000)         .setBulkSize(new ByteSizeValue(1, ByteSizeUnit.GB))         .setFlushInterval(TimeValue.timeValueSeconds(5))         .setConcurrentRequests(1)         .build();}public void scorll(Client client ,String test){QueryBuilder qb = QueryBuilders.termQuery("multi", "test");SearchResponse scrollResp = client.prepareSearch(test)        .setSearchType(SearchType.SCAN)        .setScroll(new TimeValue(60000))        .setQuery(qb)        .setSize(100).execute().actionGet(); //100 hits per shard will be returned for each scroll//Scroll until no hits are returnedwhile (true) {    for (SearchHit hit : scrollResp.getHits().getHits()) {        //Handle the hit...    }    scrollResp = client.prepareSearchScroll(scrollResp.getScrollId()).setScroll(new TimeValue(60000)).execute().actionGet();    //Break condition: No hits are returned    if (scrollResp.getHits().getHits().length == 0) {        break;    }}}public void mult(Client client){SearchRequestBuilder srb1 = client.prepareSearch().setQuery(QueryBuilders.queryStringQuery("elasticsearch")).setSize(1);SearchRequestBuilder srb2 = client.prepareSearch().setQuery(QueryBuilders.matchQuery("name", "kimchy")).setSize(1);MultiSearchResponse sr = client.prepareMultiSearch()        .add(srb1)        .add(srb2)        .execute()        .actionGet();// You will get all individual responses from MultiSearchResponse#getResponses()long nbHits = 0;for (MultiSearchResponse.Item item : sr.getResponses()) {    SearchResponse response = item.getResponse();    nbHits += response.getHits().getTotalHits();}}}