java - 如何在 Java Spring 中执行预构建查询

Question

我需要在java spring中执行预构建的SQL查询，我创建的查询如下，

String query = "select * from device where";

if (status != null) {
    query += " status = "+status;
}

if (cinema != "") {
    query += " and cinema_code = \'"+cinema+"\'";
}

if (content_profile != "") {
    query += " and content_profile = \'"+content_profile+"\'";
}

if (mac != "") {
    query += " and mac = \'"+mac+"\'";
}

构建查询:

select * 
from device 
where status = 2 
  and cinema_code = 'AL10' 
  and content_profile = 'signage'

Answer 1

您可以使用 Spring Data JPA 规范进行动态查询。 看看这里: https://www.baeldung.com/rest-api-search-language-spring-data-specifications