如果查询的字段中有空的值，hibernate怎么查询不到所需要的糪\0...

啊，你这样都没有问题么，我用的和你一样，郁闷
我这样用后就没有问题了，好像不可以动态符值：

      String queryString ="select user from User as user where user.userName is null";

//      String queryString = "select user from User as user where user.userName is :nam and user.password is :pass";
      net.sf.hibernate.Query query = session.createQuery(queryString);;
//      query.setString("nam", null);;
//      query.setString("pass", null);;
      System.out.println("---- list-1--------");;
      for (java.util.Iterator it = query.iterate();; it.hasNext();; ); {
        User us = (User); it.next();;
        System.out.println(us.getUserID(); + "   Password： " + us.getPassword(););;
      }
      System.out.println("--------------------------\r\n");;

我的是db2
还发现一个现象：输出了这些东东：

---- list-1--------
Hibernate: select user0_.LogonID as x0_0_ from db2admin.Users user0_ where (user0_.Name is null );
Hibernate: select user0_.LogonID as LogonID, user0_.EmailAddress as EmailAdd2_, user0_.LastLogon as LastLogon, user0_.Password as Password, user0_.Name as Name from db2admin.Users user0_ where user0_.LogonID=?
Hibernate: select contacts0_.ID as ID__, contacts0_.ID as ID, contacts0_.EmailAddress as EmailAdd2_, contacts0_.Name as Name, contacts0_.User_ID as User_ID from db2admin.Contacts contacts0_ where contacts0_.User_ID=?
Hibernate: select user0_.LogonID as LogonID, user0_.EmailAddress as EmailAdd2_, user0_.LastLogon as LastLogon, user0_.Password as Password, user0_.Name as Name from db2admin.Users user0_ where user0_.LogonID=?
Hibernate: select contacts0_.ID as ID__, contacts0_.ID as ID, contacts0_.EmailAddress as EmailAdd2_, contacts0_.Name as Name, contacts0_.User_ID as User_ID from db2admin.Contacts contacts0_ where contacts0_.User_ID=?

用户2   Password： 22

Hibernate: select user0_.LogonID as LogonID, user0_.EmailAddress as EmailAdd2_, user0_.LastLogon as LastLogon, user0_.Password as Password, user0_.Name as Name from db2admin.Users user0_ where user0_.LogonID=?
Hibernate: select contacts0_.ID as ID__, contacts0_.ID as ID, contacts0_.EmailAddress as EmailAdd2_, contacts0_.Name as Name, contacts0_.User_ID as User_ID from db2admin.Contacts contacts0_ where contacts0_.User_ID=?

younhu   Password： 22
43   Password： null

--------------------------

为啥查询出的3条纪录不是写在一块的。而是分开写的，先打出一条，再打出2条来,奇怪的紧