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JSP class files
Hi everyone,
I have a question that I would be grateful if the experts guided me.
I have a JSP web app that I altered its class files and I want to run the application based on its new class files. If I simply replace the new ones with the old ones and run the web app would it be enough?
Regards
Related threads:
Re: JSP class files
What happened when you tried?
Re: JSP class files
I run the web app and its still the old one not the new one.
I have made some changes in the code that I do not get the result I want therefore, I thought that this might not be the right solution.
It seems that the solution mentioned earlier is correct is that right?
If not is there some other solutions?
When I run my app I have altered classes and JSP pages with the old code, I have no clue how this run will help me because the source is still old. I know this might seem a very simple question but, could anyone guide me please?
Re: JSP class files
Hello.
Do you mean you have your custom classes for some custom JSP tags.
If so then you will have to recompile your classes.
If not then let us know if you still have any problems.
Syed.
Re: JSP class files
I do not totally understand you.Originally Posted by syedbhai
I have made some changes inside some functions of the application and as these changes are done in the class files not the actual source codes of the JSP app I do not know how I can exactly run my apps with the changed form not the old one. Is the solution mentioned earlier correct or do I need to do something else? Please guide me.
If there is anything else that I should clarify please let me know.
Re: JSP class files
Hello.
Some JSP tags are standard such as <jsp:include>, etc. If you are using only standard tags then there is no issue with classes.
If you have your own defined tags such as <tag1>, <tag2>, etc. then you will have to write your own classes to perform actions for the tags. When you change the code of these classes then you will have to recompile them and give it to the JSP engine.
So know tell us if you are using any user-defined tags.
Or else just put your jsp code on the forum and tell us what problems you are experiencing.
We shall help you appropriately.
Syed.
user2013 (August 3rd, 2013)
Re: JSP class files
Hi and thanks for your reply.
I'm not sure but I think I have the first situation (the application is not written by me and its a test case). Here is a sample:
<%@ include file="Common.jsp" %><%!
...
%><%
....
%>
<html>
<head>
<title>SVEC - Silicon Valley Engineers Club</title>
<meta name="GENERATOR" content="YesSoftware CodeCharge v.1.2.0 / JSP.ccp build 05/21/01"/>
<meta http-equiv="pragma" content="no-cache"/>
<meta http-equiv="expires" content="0"/>
<meta http-equiv="cache-control" content="no-cache"/>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
</head>
<body style="background-color: #FFFFFF; color: #000000; font-family: Arial, Tahoma, Verdana, Helveticabackground-color: #FFFFFF; color: #000000; font-family: Arial, Tahoma, Verdana, Helvetica">
<jsp:include page="Header.jsp" flush="true"/><center>
<table>
<tr>
<td valign="top">
<% Search_Show(request, response, session, out, sSearchErr, sForm, sAction, conn, stat); %>
</td>
</tr>
</table>
<table>
<tr>
<td valign="top">
<% Members_Show(request, response, session, out, sMembersErr, sForm, sAction, conn, stat); %>
</td>
</tr>
</table>
<jsp:include page="Footer.jsp" flush="true"/>
<center><font face="Arial"><small>This dynamic site was generated with <a href="http://www.codecharge.com">CodeCharge</a></small></font></center>
</body>
</html>
<%%>
<%
..
%>
<%!
%>
If you agree with me and its the first case why is there no issue with the classes? Do you mean that everything is OK? If so why is it like this, I have changed part of the java code inside. Is there nothing that I should do so that the application is executed with its new code?
Re: JSP class files
Hello.
I think we have one separate forum for JSP.
Just put your JSP code and the classes there.
It shall be better everyone knows it.
If it is not acceptable by the forum then you can email me.
Syed.
Re: JSP class files
Sorry, but I have changed my reply. Could you please check it?
Re: JSP class files
User2013,
Yes, you are actually in the first case. You are not using any custom JSP tags.
You are actually invoking java methods using scriptlets (<% ... %>).
But before calling these methods you will have to define them as well.
For defining your methods you have to use declarations (<%! ... %>).
So please using declarations first define your methods. Then using scriptlets invoke these methods.
By the way you are including common.jsp file. Check if these methods are defined there or not.
Syed.
Re: JSP class files
Hi,
Sorry for the delay @Syed. As you mentioned I had forgotten to include the related functions in my code. I have now included them and I still do not get what I want.
If I'm not mistaking you said I should just copy the new class files in .../org/apache/jsp/ and just run my app. I still do not get it why this is enough. I have altered the code of some functions inside the class files but the JSP files are still the old ones.
This question might seem naive but, is it that because the JSPs are finally turned into classes, when the app runs the class files are executed therefore the JSPs are not important?
Could you clarify please?
Re: JSP class files
Hello.
Can you please post your entire jsp code.
Let me have a look at it.
Syed.
Re: JSP class files
Should I post it here or on the jsp forum you mentioned earlier?
Re: JSP class files
Yeah. You can put it on JSP forum.
Syed.
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