前言

在了解jest框架前，楼主一直尝试用官方的Elasticsearch java api连接es服务的，可是，不知何故，一直报如下的异常信息，谷歌了很久，都说是jvm版本不一致导致的问题，可我是本地测试的，jvm肯定是一致的，这个问题现在都木有解决，but，这怎么能阻止我探索es的脚步呢，so，让我发现了jest 这个框架   


org.elasticsearch.transport.RemoteTransportException: Failed to deserialize exception response from stream Caused by: org.elasticsearch.transport.TransportSerializationException: Failed to deserialize exception response from stream
我的测试代码是参考官方api实例的，官方api地址：Elasticsearch java api,代码如下：



Client client = new TransportClient().addTransportAddress(new InetSocketTransportAddress("127.0.0.1", 9300)); QueryBuilder queryBuilder = QueryBuilders.termQuery("content", "搜"); SearchResponse searchResponse = client.prepareSearch("indexdata").setTypes("fulltext") .setQuery(queryBuilder) .execute() .actionGet(); SearchHits hits = searchResponse.getHits(); System.out.println("查询到记录数:" + hits.getTotalHits()); SearchHit[] searchHists = hits.getHits(); for(SearchHit sh : searchHists){ System.out.println("content:"+sh.getSource().get("content")); } client.close();
如果有人知道怎么回事，告诉一下楼主吧，让楼主坑的明白，感激不尽了，我的es版本是2.2.0


进入正题

了解jest

jest是一个基于 HTTP Rest 的连接es服务的api工具集，功能强大，能够使用es java api的查询语句，项目是开源的，github地址：https://github.com/searchbox-io/Jest




我的测试用例

分词器：ik，分词器地址：https://github.com/medcl/elasticsearch-analysis-ik ，es的很多功能都是基于插件提供的，es版本升级都2.2.0后，安装插件的方式不一样了，如果你安装ik分词插件有问题，请点击右上角的qq联系博主

新建索引

curl -XPUT http://localhost:9200/indexdata


创建索引的mapping，指定分词器

curl -XPOST http://localhost:9200/indexdata/fulltext/_mapping

{
  "fulltext": {
    "_all": {
      "analyzer": "ik_max_word",
      "search_analyzer": "ik_max_word",
      "term_vector": "no",
      "store": "false"
    },
    "properties": {
      "content": {
        "type": "string",
        "store": "no",
        "term_vector": "with_positions_offsets",
        "analyzer": "ik_max_word",
        "search_analyzer": "ik_max_word",
        "include_in_all": "true",
        "boost": 8
      },
      "description": {
        "type": "string",
        "store": "no",
        "term_vector": "with_positions_offsets",
        "analyzer": "ik_max_word",
        "search_analyzer": "ik_max_word",
        "include_in_all": "true",
        "boost": 8
      },
      "title": {
        "type": "string",
        "store": "no",
        "term_vector": "with_positions_offsets",
        "analyzer": "ik_max_word",
        "search_analyzer": "ik_max_word",
        "include_in_all": "true",
        "boost": 8
      },
      "keyword": {
        "type": "string",
        "store": "no",
        "term_vector": "with_positions_offsets",
        "analyzer": "ik_max_word",
        "search_analyzer": "ik_max_word",
        "include_in_all": "true",
        "boost": 8
      }
    }
  }
}

mapping信息可以用head插件查看，如下


导入数据和查询，看代码吧


@RunWith(SpringJUnit4ClassRunner.class) @SpringApplicationConfiguration(classes = ElasticSearchTestApplication.class) public class JestTestApplicationTests { @Autowired private KlarticleDao klarticleDao; //得到JestClient实例 public JestClient getClient()throws Exception{ JestClientFactory factory = new JestClientFactory(); factory.setHttpClientConfig(new HttpClientConfig .Builder("http://127.0.0.1:9200&quot;) .multiThreaded(true) .build()); return factory.getObject(); } /** * 导入数据库数据到es * @throws Exception */ @Test public void contextLoads() throws Exception{ JestClient client=getClient(); Listlists=klarticleDao.findAll(); for(Klarticle k:lists){ Index index = new Index.Builder(k).index("indexdata").type("fulltext").id(k.getArcid()+"").build(); System.out.println("添加索引----》"+k.getTitle()); client.execute(index); } //批量新增的方式,效率更高 Bulk.Builder bulkBuilder = new Bulk.Builder(); for(Klarticle k:lists){ Index index = new Index.Builder(k).index("indexdata").type("fulltext").id(k.getArcid()+"").build(); bulkBuilder.addAction(index); } client.execute(bulkBuilder.build()); client.shutdownClient(); } //搜索测试 @Test public void JestSearchTest()throws Exception{ SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder(); searchSourceBuilder.query(QueryBuilders.matchQuery("content", "搜索")); Search search = new Search.Builder(searchSourceBuilder.toString()) // multiple index or types can be added. .addIndex("indexdata") .build(); JestClient client =getClient(); SearchResult result= client.execute(search); // List> hits = result.getHits(Klarticle.class); Listarticles = result.getSourceAsObjectList(Klarticle.class); for(Klarticle k:articles){ System.out.println("------->："+k.getTitle()); } } }下面是依赖的jar，maven项目<!--jest依赖--> <dependency> <groupId>io.searchbox</groupId> <artifactId>jest</artifactId> <version>2.0.0</version> </dependency> <!--jest 日志依赖--> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.6.1</version> </dependency> <dependency> <groupId>org.elasticsearch</groupId> <artifactId>elasticsearch</artifactId> <version>2.2.0</version> </dependency> </dependencies>
去我的博客查看原文：http://www.kailing.pub/article/index/arcid/84.html

我是最近从lucene过渡Elasticsearch的，直接用的最新的2.2.0版本的。发现离线安装插件的方式和以前不一样了，一些配置也有改变，最大的问题是java client api 连接报了如下的异常，我是参照官方api测试的，地址：https://www.elastic.co/guide/e ... .html

org.elasticsearch.transport.RemoteTransportException: Failed to deserialize exception response from stream

谷歌都说是服务和客户端的jvm不一致，我是本机环境测试的，所以，现在这个问题都还没解决，有遇到过的么，还是和版本有关系啊

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