Es QueryBuilder 简单查询_querybuilders.multimatchquery

1.matchQuery(String name,Object  text)

matchQuery("filedname","value")匹配单个字段，匹配字段名为filedname,值为value的文档

//单个匹配，搜索name为jack的文档

QueryBuilder queryBuilder = QueryBuilders.matchQuery("name", "jack");

2.multiMatchQuery(Object text, String... fieldNames)

多个字段匹配某一个值

//搜索name中或interest中包含有music的文档（必须与music一致）

QueryBuilder queryBuilder = QueryBuilders.multiMatchQuery("music","name", "interest");

3.wildcardQuery()模糊查询

模糊查询，?匹配单个字符，*匹配多个字符

//搜索名字中含有jack文档（name中只要包含jack即可）

WildcardQueryBuilder queryBuilder = QueryBuilders.wildcardQuery("name","*jack*");

4.BoolQueryBuilder进行复合查询

4.1使用must

//模糊查询并搜索名字中含有jack的文档
WildcardQueryBuilder queryBuilder1 = QueryBuilders.wildcardQuery( "name", "*jack*");

//模糊查询并搜索interest中含有read的文档
WildcardQueryBuilder queryBuilder2 = QueryBuilders.wildcardQuery( "interest", "*read*");
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
//name中必须含有jack,interest中必须含有read,相当于and
boolQueryBuilder.must(queryBuilder1);
boolQueryBuilder.must(queryBuilder2);

输出结果：name中必须含有jack,interest中必须含有read

4.2 使用 should

WildcardQueryBuilder queryBuilder1 = QueryBuilders.wildcardQuery("name", "*jack*");//搜索名字中含有jack的文档
WildcardQueryBuilder queryBuilder2 = QueryBuilders.wildcardQuery("interest", "*read*");//搜索interest中含有read的文档
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
//name中含有jack或者interest含有read，相当于or
boolQueryBuilder.should(queryBuilder1);
boolQueryBuilder.should(queryBuilder2);

输出结果：name中含有jack或者interest中含有read的都将被匹配