Question

hibernate 在一个事务里刚对一个对象进行新增可以马上对对象进行修改吗?

Answer 1

  Session session=null;
  try{
     session= HibernateUtil.getSession();
     session.beginTransaction();
     Category c1 = new Category();
     c1.setName("java类图书");
  
     Book b1 = new Book();
     b1.setName("Thinking in java");
     b1.setAuthor("Orelly");
     b1.setCategory(c1);
     session.save(b1);
     
     b1.setAuthor("ooo");
     session.update(b1);
     
     session.getTransaction().commit();
     }catch(Exception e){}

 以下是打印出来的HQL语句，不知道你是这个意思吗

Hibernate:
    insert
    into
        tb_category
        (name)
    values
        (?)
Hibernate:
    insert
    into
        tb_book
        (name, author, categoryId)
    values
        (?, ?, ?)
Hibernate:
    update
        tb_book
    set
        name=?,
        author=?,
        categoryId=?
    where
        id=?