loginbean.java~62~

一个四层结构的j2ee项目实例。对于初学者相当合适。欢迎下载使用。

package sqlaccounts;

import javax.ejb.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import java.rmi.RemoteException;
import java.util.Collection;
import java.util.Hashtable;
import java.util.Properties;
import java.util.Vector;
import java.util.Iterator;

import javax.ejb.CreateException;
import javax.ejb.DuplicateKeyException;
import javax.ejb.FinderException;
import javax.ejb.ObjectNotFoundException;
import javax.ejb.RemoveException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.rmi.PortableRemoteObject;
public class LoginBean implements SessionBean {
  SessionContext sessionContext;
  private EjbAccountsHome ejbAccountsHome = null;
  private EjbAccounts  ejbAccounts=null;
  //管理日志变量
  private AManagerLogHome aManagerLogHome = null;
  private AManagerLog  aManagerLog=null;


  public  Collection   conType;
  java.lang.String type;
  //String Type;
  public   LoginBean()
  {

  }
  public   LoginBean(String Type)
  {
    this.type=Type;
  }
public void ejbCreate() throws CreateException {
    /**@todo Complete this method*/
    try
    {
        Context ctx = new InitialContext();
        Object ref = ctx.lookup("EjbAccountsRemote");
        //this.employeeHome = (EmployeeRemoteHome)PortableRemoteObject.narrow(ctx.lookup("EmployeeRemote"),EmployeeRemoteHome.class);
        this.ejbAccountsHome = (EjbAccountsHome)PortableRemoteObject.narrow(ref,EjbAccountsHome.class);
        // EjbAccounts ejbAccounts = ejbAccountsHome.findByPrimaryKey(Id);
    }
    catch(Exception e){
    }
}
  public void ejbRemove() {
    /**@todo Complete this method*/
  }
  public void ejbActivate() {
    /**@todo Complete this method*/
  }
  public void ejbPassivate() {
    /**@todo Complete this method*/
  }
  public void setSessionContext(SessionContext sessionContext) {
    this.sessionContext = sessionContext;
  }
  public boolean login(String Id) {
    /**@todo Complete this method*/

    try{
       //Context ctx = new InitialContext();
       //Object ref = ctx.lookup("EjbAccountsRemote");
      //this.employeeHome = (EmployeeRemoteHome)PortableRemoteObject.narrow(ctx.lookup("EmployeeRemote"),EmployeeRemoteHome.class);
      //this.ejbAccountsHome = (EjbAccountsHome)PortableRemoteObject.narrow(ref,EjbAccountsHome.class);
       ejbAccounts = ejbAccountsHome.findByPrimaryKey(Id);
    }catch(Exception e){
      log("不能找到用户ID号码！");
      return false;
    }
    log("找到用户ID号码！");
    return true;
  }
  private void log(String s) {
   System.out.println(s);
  }
  public boolean AddId(String id, String Type, double bal)
  {
    /**@todo Complete this method*/
    long startTime = 0;

    try
    {
      ejbAccounts = ejbAccountsHome.create(id, Type, bal);

    }
    catch(Exception e)
    {
      log("Failed: create(" + id + ", " + Type + ", " + bal + ")");
      return false;
    }
     log("成功创建账号:(" + id + ", " + Type + ", " + bal + ")");
    return true;

  }
  //发现和创建账号
  public boolean findOrCreateAccount(String id, String accountType, double balance)
  {

   try {
     ejbAccounts =ejbAccountsHome.findByPrimaryKey(id);//(EjbAccounts)PortableRemoteObject.narrow(ejbAccountsHome.findByPrimaryKey(id), EjbAccounts.class);
      log("发现新账号:(" + id + ", " + accountType + ", " + balance + ")");
      ejbAccounts.remove();
      log("删除新账号:(" + id + ", " + accountType + ", " + balance + ")");
      return true;
   }
   catch (Exception onfe)
   {
     // the account id does not yet exist so create it.
     if(AddId(id, accountType, balance)==true)
       //ejbAccounts = ejbAccountsHome.create(id, accountType, balance);
     {
       log("创建新账号:(" + id + ", " + accountType + ", " + balance + ")");
       return false;
     }
     else

       return false;
   }

  }
  public Vector findByType(String Type)
  {
        try
        {
        Collection AllejbAccounts = ejbAccountsHome.findByType(Type);
        if (AllejbAccounts.isEmpty())
          return null;
        Iterator it = AllejbAccounts.iterator();
        Vector all=new Vector();
        while (it.hasNext()){
         /* EjbAccounts ejbAccounts = (EjbAccounts)(javax.rmi.PortableRemoteObject.narrow(it.next(),EjbAccounts.class));
          Login x=GetLogintype(ejbAccounts.getType());
            //all.add(new LoginBean(ejbAccounts.getType()));
          all.add(x);
            */
            EjbAccounts ejbAccounts = (EjbAccounts)(javax.rmi.PortableRemoteObject.narrow(it.next(),EjbAccounts.class));
            String[] info ={ejbAccounts.getType().toString(),""+ejbAccounts.getBal(),toString(),""+ejbAccounts.getId(),};
            all.add(info);
        }
         return all;
        }catch(Exception e){
        return null;
        }
  }
    public Login GetLogintype(String type)
    {
        /**@todo Complete this method*/
        setType(type);
       // Login loginBean=new Login();
       // loginBean.setType(type);
        //return loginBean;
        return null;
    }
    public void untitledMethod1()
    {
        /**@todo Complete this method*/
    }
    //查出所有的认证日志
    public Vector findAllManagelog()
    {
        /**@todo Complete this method*/
        try
        {
        Collection AllManagelog = aManagerLogHome.findAllManagelog();
        if (AllManagelog.isEmpty())
          return null;
        Iterator it = AllManagelog.iterator();
        Vector all=new Vector();
        while (it.hasNext()){
            AManagerLog aManagerLog = (AManagerLog)(javax.rmi.PortableRemoteObject.narrow(it.next(),AManagerLog.class));
            String[] info ={ejbAccounts.getType().toString(),""+ejbAccounts.getBal(),toString(),""+ejbAccounts.getId(),};
            all.add(info);
        }
         return all;
        }catch(Exception e){
        return null;
        }

    }
  public void setType(java.lang.String type)
  {
        this.type = type;
  }
  public java.lang.String getType()
  {
        return type;
  }

}