code: public   MapSearchHit getDocumentHit(String indexName, String indexType,String documentId,Map<String,Object> options) throws ElasticSearchException{
  		try {
  			MapSearchHit searchResult = this.client.executeRequest(BuildTool.buildGetDocumentRequest(indexName, indexType, documentId, options), null, new GetDocumentHitResponseHandler(), ClientUtil.HTTP_GET);
  			return searchResult;
  		}
  		catch(ElasticSearchException e){
  			return ResultUtil.hand404HttpRuntimeException(e,MapSearchHit.class,ResultUtil.OPERTYPE_getDocument);
  		}
  	}
docs: 获取文档MapSearchHit对象，封装了索引文档的所有属性数据
  @param indexName
  @param indexType
  @param documentId
  @param options
  @return
  @throws ElasticSearchException