java.lang.IllegalArgumentException：具有該名稱 [xxx] 的參數不存在

Question

java.lang.IllegalArgumentException：具有該名稱 [xxx] 的參數不存在

我正在使用Spring-data-jpa + hibernate

String login = "AdanaKebap";
String userQuery = "select * from user where username like '%:login%'"; // not working
Query query = entityManager.createNativeQuery(userQuery);
query.setParameter("login", login);
List<Object[]> userObjects = query.getResultList();

我會嘗試

String userQuery = "select * from user where username like '%?%'"; // not working
query.setParameter("1", login);

String userQuery = "select * from user where username like '%?1%'"; // not working
query.setParameter("1", login);

String userQuery = "select * from user where username like ':login'"; // not working
query.setParameter("login", login);

String userQuery = "select * from user where username like :login "; // not working
query.setParameter("login", login);

String userQuery = "select * from user where username = :login "; // working, but i don't need this

Answer 1

您需要使用CONCAT來連接%和傳遞給查詢的值，因此請嘗試：

String userQuery = "select * from user where username like CONCAT('%', ?1, '%')";
//...
query.setParameter(1, login); // note here you have to use the index of placeholder 

或者

String userQuery = "select * from user where username like CONCAT('%', :login, '%')'";
//...
query.setParameter("login", login);