searchbean.java

《J2EE专业项目实例开发》源代码

import java.util.*;
import java.io.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;

public class SearchBean
{
private String searchBy;
ItemHome itemHome;
Item item;

Vector vect;


public SearchBean()
{
vect = new Vector();
try
{
Context ctx=new InitialContext();

Object obj=ctx.lookup("java:comp/env/ejb/Item");

itemHome=(ItemHome)PortableRemoteObject.narrow(obj,ItemHome.class);
}
catch(Exception e)
{
System.out.println("Could not find Item home"+e);
}
}

public void setSearchBy(String str)
{

searchBy=str;
searchBy=searchBy.trim();
}
public String getSearchBy()
{
return searchBy;
}

public Vector performSearch()
{

try
{
if(searchBy!=null)
{
 
 Collection collect=itemHome.findByType(searchBy);

 Iterator itr=collect.iterator();
 while(itr.hasNext()){
   int i=0;
   item=(Item)itr.next();
   String title=item.gettitle();
   vect.add(i,title);
   i++;
  
 }

}
else
{
  vect.add(0,"");
}  

}
catch(Exception e)
{
System.out.println("Error in finding by type"+e);
}
return vect;
}


}