hibernate 类型转换

hibernate 执行SQL语句字符串常量类型变成了 character

解决办法

1重写Dialect

public class SQLServerDialect extends org.hibernate.dialect.SQLServerDialect{

    public SQLServerDialect() {

        super();

        //very important, mapping char(n) to String

        registerHibernateType(Types.CHAR, Hibernate.STRING.getName());

    }

}

 

2

this.getSession().createSQLQuery("select id,name,state from tb").

addScalar("id", Hibernate.STRING).

addScalar("name", Hibernate.STRING).

addScalar("state", Hibernate.STRING).list();

 

3

select id,name,cast(state as varchar(2)) from tb