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how to convert .jsp to .java

jerry cowell

Joined: Apr 29, 2010
Posts: 7
Hi experts,

please help me out. i am a newbie.
I really appreciate your time, can you please give me an example of how i can translate this .jsp file code below to a .java file, what will your .java file look like after translating the below code ?
my aim is to translate the .jsp into .java and convert .java to .class and invoke the .class file from an ERP program.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<%@ page import="sun.misc.BASE64Encoder, javax.crypto.*, javax.crypto.spec.*"%>
<%@ page import="java.util.StringTokenizer" %>
<%@ page import="java.util.Map" %>

public String insertSig(String amount, String currency) {
try {
if (amount == null) {
amount = "0.00";
if (currency == null) {
currency = "usd";
String time = String.valueOf(System.currentTimeMillis());
String merchantID = getMerchantID();
String data = merchantID + amount + currency + time;
BASE64Encoder encoder = new BASE64Encoder();
String publicDigest = encoder.encodeBuffer(publicBytes);
publicDigest = publicDigest.replaceAll("\n", "");
StringBuffer sb = new StringBuffer();
sb.append("<input type=\"hidden\" name=\"amount\" value=\"");
sb.append("\">\n<input type=\"hidden\" name=\"currency\" value=\"");
sb.append("\">\n<input type=\"hidden\" name=\"orderPage_timestamp\" value=\"");
sb.append("\">\n<input type=\"hidden\" name=\"merchantID\" value=\"");
sb.append("\">\n<input type=\"hidden\" name=\"orderPage_signaturePublic\" value=\"");
sb.append("\">\n<input type=\"hidden\" name=\"orderPage_version\" value=\"4\">\n");
sb.append("<input type=\"hidden\" name=\"orderPage_serialNumber\" value=\"");
return sb.toString();
} catch (Exception e) {
return "";
Jan Cumps

Joined: Dec 20, 2006
Posts: 2549

"always jerry", you have been asked before to correct your name. Please do so before continuing to post questions.

OCUP UML fundamental and ITIL foundation
Jan Cumps

Joined: Dec 20, 2006
Posts: 2549

... and closing this duplicate post.
I agree. Here's the link:
subject: how to convert .jsp to .java
jQuery in Action, 3rd edition