ElasticSearch java client 查询汇总（一）

1 term query 分词精确查询

QueryBuilder queryBuilder = QueryBuilders.termQuery("name", "华为手机")；

2 terms Query 多term查询

QueryBuilder queryBuilder = QueryBuilders.termsQuery("name", "华为手机","摄像机")；

3 range query 范围查询

QueryBuilder queryBuilder=QueryBuilders.rangeQuery("price").gte(5000).lt(10000)；

4 exist query 查询字段不为null的文档

QueryBuilder queryBuilder= QueryBuilders.existsQuery("introduce");

5 prefix query 匹配分词前缀 如果字段没分词，就匹配整个字段前缀

QueryBuilder queryBuilder=QueryBuilders.prefixQuery("name","华");

6 wildcard query 通配符查询，支持* 任意字符串；？任意一个字符

QueryBuilder queryBuilder=QueryBuilders.wildcardQuery("name","华*");
QueryBuilder queryBuilder=QueryBuilders.wildcardQuery("name","ctr?")

7 regexp query 正则表达式匹配分词，正则表达式自己写吧

QueryBuilder queryBuilder=QueryBuilders.regexpQuery("name","华.*");

8 fuzzy query 分词模糊查询，通过增加fuzziness 模糊属性，来查询term 如下能够匹配 name 为 耳 耳前或后加一个字母的term的 文档 fuzziness 的含义是检索的term 前后增加或减少n个单词的匹配查询，

    QueryBuilder queryBuilder=QueryBuilders.fuzzyQuery("name","耳").fuzziness(Fuzziness.ONE);

9 type Query 查询某个type的数据

QueryBuilder queryBuilder=QueryBuilders.typeQuery("digital");

10 idx Query 根据ID查询

QueryBuilder queryBuilder=QueryBuilders.idsQuery().addIds("AWelj9EHIRUqnC6X38Sj","AWelnJvnIRUqnC6X38Sv","AWemejYdIRUqnC6X38Sz");