employeecustomerbean.java

jbuilder9+weblogic8+oracle9开发的客户管理系统。服务器端采用EJB技术。可以对公司雇员和客户进行管理。

package testejb;

//import testejb.customer;
import javax.ejb.*;
import  java.util.*;
import javax.naming.*;
public class EmployeeCustomerBean implements SessionBean {
  SessionContext sessionContext;
  private CustomersHome customershome=null;

  java.util.Vector allcustomer=new Vector();

  public void ejbCreate() throws CreateException {
    /**@todo Complete this method*/
    try{
    Context context=new InitialContext();
    Object ref=context.lookup("java:/comp/env/customer");
    customershome=(CustomersHome)ref;

    }
    catch(Exception e)
    {e.printStackTrace();}

  }
  public void ejbRemove() {
    /**@todo Complete this method*/
  }
  public void ejbActivate() {
    /**@todo Complete this method*/
    try{
   Context context=new InitialContext();
   Object ref=context.lookup("java:/comp/env/customer");
   customershome=(CustomersHome)ref;

   }
   catch(Exception e)
   {e.printStackTrace();}

  }
  public void ejbPassivate() {
    /**@todo Complete this method*/
  }
  public void setSessionContext(SessionContext sessionContext) {
    this.sessionContext = sessionContext;
  }
  public boolean addCustomer(String id, String name, String addr, String contact, String phone, String email, String representid) {
    /**@todo Complete this method*/
   try{customershome.create2(id,name,addr,contact,phone,email,representid);
   return true;}
  catch( Exception e)
   {e.printStackTrace();
   return false;}

  }
  public boolean deleteCustomer(String id) {
    /**@todo Complete this method*/
    try{
      Customers customertemp = customershome.findByPrimaryKey(id);
      customertemp.remove();
      return true;
    }catch(Exception e)
    {return false;}
  }
  public java.util.Vector display() {
    /**@todo Complete this method*/
      try{Iterator i=customershome.findallcustomers().iterator();
      allcustomer.clear();
      while (i.hasNext()) {
      Customers customertemp=(Customers)i.next();
      customer tempcustomer=new customer(customertemp.getId(),customertemp.getName(),customertemp.getAddr(),customertemp.getContact(),customertemp.getPhone(),customertemp.getEmail(),customertemp.getRepresentId());
      allcustomer.add(tempcustomer);

      }
    }catch(Exception e)
    {e.printStackTrace();}
    return allcustomer;
  }
  public testejb.customer displaysingle(String id) {
    /**@todo Complete this method*/
    try{
      Customers customertemp = customershome.findByPrimaryKey(id);
      customer tempcustomer=new customer(customertemp.getId(),customertemp.getName(),customertemp.getAddr(),customertemp.getContact(),customertemp.getPhone(),customertemp.getEmail(),customertemp.getRepresentId());
      return tempcustomer;
    }
    catch (Exception e)
    {return null;}

  }
  public boolean updatecustomer(String id, String name, String addr, String contact, String phone, String email, String representid) {
    /**@todo Complete this method*/
    try{
     Customers customertemp = customershome.findByPrimaryKey(id);
     customertemp.setAddr(addr);
     customertemp.setContact(contact);
     customertemp.setEmail(email);
     customertemp.setName(name);
     customertemp.setPhone(phone);
     customertemp.setRepresentId(representid);
     return true;
   }catch(Exception e)
   {return false;}

  }


}