java - 如何使用 like 和 % 进行 Hibernate 查询？

Question

我有一个像这样的 Hibernate SQL 查询:

public void funcA(String str) {
  StringBuilder sql = new StringBuilder();
  sql.append("select fieldA from tableA where fieldB like '%:searchKey%'");

  ...

  session.createSQLQuery(sql.toString())
  .addScalar("fieldA", StandardBasicTypes.STRING)
  .setParameter("searchKey", str);

  ...
}

当我进行这样的查询时 query.list()，出现以下错误:

[WARNING ] SQL Error: -7, SQLState: 42601[ERROR   ] The character "%" following "fieldB like" is not valid.
[ERROR   ] An error occurred during implicit system action type "2".  Information returned for the error includes SQLCODE "-7", SQLSTATE "42601" and message tokens "%|fieldB like".

我可以知道如何解决这个问题吗？

Answer 1

这应该有效:

    public void funcA(String str) {
  StringBuilder sql = new StringBuilder();
  sql.append("select fieldA from tableA where fieldB like :searchKey");

  ...

  session.createSQLQuery(sql.toString())
  .addScalar("fieldA", StandardBasicTypes.STRING)
  .setParameter("searchKey", "%" + str + "%");

  ...
}