es模糊查询、分词查询、精确查询

一：es精确查询、模糊查询：

es精确查询使用WildcardQueryBuilder：精确查询和模糊查询的区别是被模糊的字段值是否加匹配符 *、？，*匹配任意多个，？只匹配一个；

 SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
//条件
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
WildcardQueryBuilder wildQueryBuilder = null;
WildcardQueryBuilder wildQueryBuilder2 = null;

 if (!StringUtils.isEmpty(param.getKeyword())) {
            wildQueryBuilder = QueryBuilders.wildcardQuery(
                    "opt_user", "*"+param.getKeyword()+"*");
        }
        if (!StringUtils.isEmpty(param.getTargetModule())) {
            wildQueryBuilder2 = QueryBuilders.wildcardQuery(
                    "target_module", "*"+param.getTargetModule()+"*");
        }
        if(wildQueryBuilder!=null){
            boolQueryBuilder.must(wildQueryBuilder);
        }
        if(wildQueryBuilder2!=null){
            boolQueryBuilder.must(wildQueryBuilder2);
        }
        sourceBuilder.query(boolQueryBuilder);

二：es分词查询：

es分词查询使用BoolQueryBuilder：

SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();

BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();

if (!StringUtils.isEmpty(param.getAppId())) {
    boolQueryBuilder.filter(QueryBuilders.termQuery("app_id", param.getAppId()));
}
if (!StringUtils.isEmpty(param.getOperationType())) {
    boolQueryBuilder.filter(QueryBuilders.termQuery("opt_type", param.getOperationType().getValue()));
}

sourceBuilder.query(boolQueryBuilder);

遇到的坑：wildcardQuery的模糊查询，在es中属性类型type=text时仍然是分词的形式查询，只有在type=keyword时，wildcardQuery实现类似于mysql中like模糊查询的方法才会生效。