这期内容当中小编将会给大家带来有关Elasticsearch Java Client版本区别及起步是什么,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
简单总结:
如果服务端是5.6以下的,选择相同版本的TransportClient,避免一些API服务端不支持
如果服务端是5.6以上的,选择相同版本的RestClient
5.6及之前的版本:
// on startup
Client client = TransportClient.builder().build()
.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("host1"), 9300))
.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("host2"), 9300));
// on shutdown
client.close();
6.0及之后的版本:
// on startup
TransportClient client = new PreBuiltTransportClient(Settings.EMPTY)
.addTransportAddress(new TransportAddress(InetAddress.getByName("host1"), 9300))
.addTransportAddress(new TransportAddress(InetAddress.getByName("host2"), 9300));
// on shutdown
client.close();
SearchResponse response = client.prepareSearch("index1", "index2")
.setTypes("type1", "type2")
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setQuery(QueryBuilders.termQuery("multi", "test")) // Query
.setPostFilter(QueryBuilders.rangeQuery("age").from(12).to(18)) // Filter
.setFrom(0).setSize(60).setExplain(true)
.get();
// Java Low Level REST Client
RestClient lowLevelRestClient = RestClient.builder(
new HttpHost("localhost", 9200, "http"),
new HttpHost("localhost", 9201, "http")).build();
// Java High Level REST Client
RestHighLevelClient client = new RestHighLevelClient(lowLevelRestClient);
SearchRequest searchRequest = new SearchRequest();
searchRequest.source(sourceBuilder);
SearchResponse searchResponse = client.search(searchRequest);
上述就是小编为大家分享的Elasticsearch Java Client版本区别及起步是什么了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注亿速云行业资讯频道。
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原文链接:https://my.oschina.net/duanvincent/blog/3073774