userlogic.java

图书借阅系统

package com.lib.logic;

import com.lib.dao.HbmDAO;
import com.lib.actionform.UserActionForm;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import com.lib.vo.Reader;
import com.lib.assistvo.Pair;
import com.lib.vo.User;
import com.lib.dao.DAOException;

public class UserLogic {
  private HbmDAO dao;
   private UserActionForm form;
   public UserLogic() {
       dao = new HbmDAO();
       dao.setAutoClose(false);
   }
   public void getUsers()
   {
     String str = "from User";
     List users = dao.list(str);
     form.setUsers(users);
 }
 public void initReaders()
    {
      ArrayList  ps =  new ArrayList();
      String str = "from Reader";
       List readers = dao.list(str);
       for (Iterator iter = readers.iterator(); iter.hasNext(); ) {
         Reader item = (Reader)iter.next();
         Pair p = new Pair();
         p.setTypeName(item.getReaderName());
         p.setTypeUID(item.getReaderUID());
         ps.add(p);
       }
       form.setReaders(ps);
    }

 public void addUser()
 {
    User user = new User();
    List readers = dao.list("from Reader");
    if(readers.size()>0)
    {
       Reader reader = (Reader)readers.get(0);
       user.setReaderUID(reader.getReaderUID());
       user.setUserName("");
       user.setPassWord("****");
       user.setUserType(new Integer(1));
       user.setUserUID(null);
       form.getUsers().add(user);
     }

 }
 public void saveUser()
 {
   List users = form.getUsers();
   for (Iterator iter = users.iterator(); iter.hasNext(); ) {
     User item = (User)iter.next();
     if(item.getUserUID().equals(new Long(0)))
     {
       item.setUserUID(null);
     }
     try {
       dao.store(item);
     }
     catch (DAOException ex) {
       ex.printStackTrace();
     }
   }
 }
 public void deleteUser()
 {
   Long uid = form.getDeleteUID();
   try {
     dao.remove(User.class, uid);
   }
   catch (DAOException ex) {
     ex.printStackTrace();
   }
 }

   public void closeDAO()
   {
     dao.closeSession();
   }
  public UserActionForm getForm() {
    return form;
  }
  public void setForm(UserActionForm form) {
    this.form = form;
  }

}