SpringBoot中进行elasticSearch查询，使用QueryBuilders构建各类条件查询

//搜索全部文档
QueryBuilder queryBuilder =
QueryBuilders.matchAllQuery();

//单个匹配，搜索name为li的文档
QueryBuilder queryBuilder =
QueryBuilders.matchQuery("name", "li");

//搜索name中或nickname中包含有li的文档（必须与li一致）
QueryBuilder queryBuilder =
QueryBuilders.multiMatchQuery("li","name", "nickname");

//搜索名字中含有li文档（name中只要包含li即可）
WildcardQueryBuilder queryBuilder =
QueryBuilders.wildcardQuery("name","*li*");

WildcardQueryBuilder queryBuilder1 = QueryBuilders.matchQuery("name", "li");
WildcardQueryBuilder queryBuilder2 = QueryBuilders.matchQuery("id", "1");

BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
//查询名字是LI和id是1的所有数据
boolQueryBuilder.must(queryBuilder1);
boolQueryBuilder.must(queryBuilder2);

WildcardQueryBuilder queryBuilder1 = QueryBuilders.matchQuery("name", "li");
WildcardQueryBuilder queryBuilder2 = QueryBuilders.matchQuery("id", "1");

BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
//查询名字是LI或id是1的所有数据
boolQueryBuilder.should(queryBuilder1);
boolQueryBuilder.should(queryBuilder2);

must：必须满足的条件

should：非必须满足的条件

minimumShouldMatch(1)：至少要满足一个 should 条件

BoolQueryBuilder queryBuilder =
QueryBuilders.boolQuery().must(QueryBuilders.termQuery("name", "小李"));

BoolQueryBuilder queryBuilder =
QueryBuilders.rangeQuery("age").gte(18).lte(50);

BoolQueryBuilder queryBuilder =
QueryBuilders.boolQuery()
.must(QueryBuilders.existsQuery("name"))
.mustNot(QueryBuilders.existsQuery("tag"));
//查询name有值，tag不存在值

SearchResponse response =
this.transportClient
.prepareSearch(index)
.setTypes(type)
.setQuery(queryBuilder)
.setFrom(offset)
.setSize(rows)
.setExplain(false)
.execute()
.actionGet();