index.txt

来自「J2EE导学」· 文本 代码 · 共 65 行

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<%--   Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.    This software is the proprietary information of Sun Microsystems, Inc.    Use is subject to license terms.  --%><%@ page import="javax.ejb.*, javax.naming.*, javax.rmi.PortableRemoteObject, java.rmi.RemoteException" %><%!	private Converter converter = null;	public void jspInit() {			try {		   InitialContext ic = new InitialContext();		   Object objRef = ic.lookup("java:comp/env/ejb/TheConverter");		   ConverterHome home = (ConverterHome)PortableRemoteObject.narrow(objRef, ConverterHome.class);		   converter = home.create();		} catch (RemoteException ex) {		      System.out.println("Couldn't create converter bean."+ ex.getMessage());		} catch (CreateException ex) {		      System.out.println("Couldn't create converter bean."+ ex.getMessage());		} catch (NamingException ex) {		      System.out.println("Unable to lookup home: "+ "TheConverter "+ ex.getMessage());		} 	}	public void jspDestroy() {    		   converter = null;	}%><html><head>    <title>Converter</title></head><body bgcolor="white"><h1><b><center>Converter</center></b></h1><hr><p>Enter an amount to convert:</p><form method="get"><input type="text" name="amount" size="25"><br><p><input type="submit" value="Submit"><input type="reset" value="Reset"></form><%	 String amount = request.getParameter("amount");    if ( amount != null && amount.length() > 0 ) {   	 Double d = new Double (amount);%>	<p>	<%= amount %> dollars are  <%= converter.dollarToYen(d.doubleValue()) %>  Yen.	<p>	<%= amount %> Yen are <%= converter.yenToEuro(d.doubleValue()) %>  Euro.<%    }%></body></html>

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