HQL查詢與LIKE有問題

Question

我正在使用HQL的搜索查詢和一切工作找到，直到我到LIKE子句。不管我做什麼，它似乎都沒有正確執行LIKE子句。這是我的查詢。

String QUERY = "FROM Person as p WHERE p.createUser = : createUser 
    AND p.personId in (SELECT pn.personId FROM PersonName pn WHERE pn.personNameType = 'FIRST' AND pn.name LIKE '%:firstName%')"; 

(List<Person>)session.createQuery(QUERY).setString("createUser", createUser).setString("firstName", firstName).list(); 

Answer 1

字符串文字內部的參數未解析。

您需要% s添加到參數值與字符串連接 - 無論是在程序方面

String QUERY = "FROM Person as p WHERE p.createUser = : createUser 
    AND p.personId in " + 
    "(SELECT pn.personId FROM PersonName pn " + 
    "WHERE pn.personNameType = 'FIRST' " + 
    "AND pn.name LIKE :firstName)"; 

(List<Person>)session.createQuery(QUERY) 
    .setString("createUser", createUser) 
    .setString("firstName", "%" + firstName + "%").list(); 

，或者在數據庫端：

String QUERY = "FROM Person as p WHERE p.createUser = : createUser 
    AND p.personId in " + 
    "(SELECT pn.personId FROM PersonName pn " + 
    "WHERE pn.personNameType = 'FIRST' " + 
    "AND pn.name LIKE CONCAT('%', :firstName, '%'))"; 

(List<Person>)session.createQuery(QUERY) 
    .setString("createUser", createUser) 
    .setString("firstName", firstName).list();