struts和hibernate简单问题

this.setId(id);

}

public java.lang.Integer getId(){

return id;

}

public void setId(java.lang.Integer id){

this.hashValue = 0;

this.id = id;

}

public java.lang.String getTitle(){

return this.title;

}

public void setTitle(java.lang.String title){

this.title = title;

}

public java.lang.String getAuthor(){

return this.author;

}

public void setAuthor(java.lang.String author){

this.author = author;

}

public Customer getCustomer(){

return this.customer;

}

public void setCustomer(Customer customer){

this.customer = customer;

}

public java.lang.Short getBorrowallowed(){

return this.borrowallowed;

}

public void setBorrowallowed(java.lang.Short borrowallowed){