WL vs. WL-express and JSP vs. javascript/SQL

folks-
i am trying to convince a certain party to
disband a web-based job tracking system being
written in ASP, javascript, html, css and SQL.
it will be hosted on MS webserver running NT.
i am trying to convince them to use JSP and
WL express. i have done two years of EJB
component work on weblogic, however, i have not
done work with JSP or thin-clients. i was mostly
business-logic.
anyway i have some questions and need some
direction. i already know JSP is better than
ASP/javascript etc. because:
* ASP is proprietary. ditto for VBscript
* with an IDE creating JSP is easy and JSP
automatically creates servlets which is way
faster than by hand
* JSP is JAVA based and hence benefits from
all the portability pluses of JAVA
but here are the more difficult questions:
* why is WL express better than an MS
web server? (not including WL market share
and size. after all MS can claim that)
* since WL express does not have an EJB
container, how do you access the database?
via JDBC? does one just have JDBC code
floating around?
* since there is no EJB container how does
one separate presentation from logic from
data access? this is a major downside of
javascript, html, css and SQL etc.
* if a web app grows beyond JSP with WL express
into the need for an EJB container, i would
think that most of the app needs to re-written
as business-logic must be refactored into EJBs
and all JDBC code will be replaced by container
managed beans. this sounds a like a lot of
rework.
* isn't JSP slower than javascript as the
servlet and hmtl code is bounced back and
force across the network?
with respect to architecture, scalability,
and robustness what are the downsides to an
MS webserver and non-JSP coding?

* since WL express does not have an EJB
container, how do you access the database?
via JDBC? does one just have JDBC code
floating around?
Use JDO or an OR-mapper or embed JDBC into your own data access classes.
* since there is no EJB container how does
one separate presentation from logic from
data access? this is a major downside of
javascript, html, css and SQL etc.
Presentation=JSP
Logic=Servlet
Data access=JDO or similar
* if a web app grows beyond JSP with WL express
into the need for an EJB container, i would
think that most of the app needs to re-written
as business-logic must be refactored into EJBs
and all JDBC code will be replaced by container
managed beans. this sounds a like a lot of
rework.
You should be able to tell up front if it a tx-intensive app that requires
WLS.
* isn't JSP slower than javascript as the
servlet and hmtl code is bounced back and
force across the network?
They aren't exclusive. For dynamic pages, use Javascript on the front end,
JSP on the back.
* with respect to architecture, scalability,
and robustness what are the downsides to an
MS webserver and non-JSP coding?
In the real world, and for most apps, while Java has the architectural edge,
they both have similar scalability and similar robustness. MS gives you no
choice though, and you rewrite every time they see a new buzzword. You can't
leave MS-land without abandoning almost everything. You can leave WLS in a
week if you have to.
It's an investment. Invest wisely.
Peace,
Cameron Purdy
Tangosol, Inc.
Clustering Weblogic? You're either using Coherence, or you should be!
Download a Tangosol Coherence eval today at http://www.tangosol.com/
"shane miller" <[email protected]> wrote in message
news:[email protected]...
folks-
i am trying to convince a certain party to
disband a web-based job tracking system being
written in ASP, javascript, html, css and SQL.
it will be hosted on MS webserver running NT.
i am trying to convince them to use JSP and
WL express. i have done two years of EJB
component work on weblogic, however, i have not
done work with JSP or thin-clients. i was mostly
business-logic.
anyway i have some questions and need some
direction. i already know JSP is better than
ASP/javascript etc. because:
* ASP is proprietary. ditto for VBscript
* with an IDE creating JSP is easy and JSP
automatically creates servlets which is way
faster than by hand
* JSP is JAVA based and hence benefits from
all the portability pluses of JAVA
but here are the more difficult questions:
* why is WL express better than an MS
web server? (not including WL market share
and size. after all MS can claim that)
* since WL express does not have an EJB
container, how do you access the database?
via JDBC? does one just have JDBC code
floating around?
* since there is no EJB container how does
one separate presentation from logic from
data access? this is a major downside of
javascript, html, css and SQL etc.
* if a web app grows beyond JSP with WL express
into the need for an EJB container, i would
think that most of the app needs to re-written
as business-logic must be refactored into EJBs
and all JDBC code will be replaced by container
managed beans. this sounds a like a lot of
rework.
* isn't JSP slower than javascript as the
servlet and hmtl code is bounced back and
force across the network?
with respect to architecture, scalability,
and robustness what are the downsides to an
MS webserver and non-JSP coding?

Similar Messages

EXPRESS and JSP relation

have got some basic doubtd in IDM
We have XML and JSPs how both r getting related in
the sense Take Login Form --> Login.jsp how both
are gettign related
Suppose In form1 I am entering some data that data
if I want to recieve in form 2 How to specify the
action ?
It seems elementary
Thanks in Advance
senthilRajan

I'm not really sure I understand your question.
Although it's probably generally true that a JSP file maps to an XML form, it's not always the case.
Can you be more specific about what you are trying to do? Are form1 and form2 different forms that would be presented during the processing of a workflow? Are you referring to end user vs. and admin activity?
Often it can be easier to use a single form that nests fields within fields that can be conditionally disabled. Thus, a single form can look like multiple different forms. Or you can use tabs in the form spread fields out on multiple tabbed pages.
Hope that helps,
sbr

Parameters b/w javascript and JSp

how i can pass values between javascript and jsp .
( java script varaible in the JSP part & jsp object in the javascript code )

Since Java script is on the client side , to get the value of a java script variable into jsp, u have to set some form field variable and submit it to the server again. So, it can be something like:
<script>
function submit()
     var scriptVar = 12;
     document.form1.formVariable.value=scriptVar;
     document.form1.submit();
</script>
<%
System.out.println("Script variable value = " +request.getParameter("formVariable"));
%>
<form name="form1" method="post">
<input type="hidden" name="formVariable" value=""/>
<input type="button" name="bSubmit" value="Submit" onclick="javascript:submit()" />
</form>
The first time this jsp is called, the value of formVariable will be null.
The next time, when u click on submit button, the value will be 12.
I have not tested this. There might be some syntax errors. Just try it out. Also, make sure that u don't end up submitting the form in an infinite loop by using the submit() generally in the script. Hope this helps.

Mix JavaScript and JSP

Hi.
I have jsp and javascript mixed when I click a check call a function javascript for example:
//JavaScript
function Hola(numerop) {
idRol = Number(numerop)
<%nombreRol = roles.get(numerop)%> }
//Form
<input type="checkbox" name="<%=roles.get(sum)%>" value="<%=roles.get(sum)%>" onClick="Hola('<%=roles.get(sum)%>')">
In the function numerop is a number but in the jsp code numerop is undefined.
How I can mixed javaScript and jsp??
Please I need help you.

Remember that the JSP runs on the server and generates the HTML, including Javascript. The Javascript runs on the browser after the JSP is finished. So you cannot do whatever it is you expected that to do.

Problem in Frame and JSP

hi all,
i built an web application and now i want to add a menu using frame in HTML or javascript. The problem is all my JSP pages are data dependant from one another that means sometimes i am sending the data using input boxes and sometimes using HIDDEN values in HTML. Now i tried this followig way to use frame and to send my data to other pages but it is not working can anyone please help me.
"DOES ANYONE KNOW WHETHER I CAN USE FRAME IN THE JSP PAGE OR NOT"
LOGIN.HTML
<form action="startframe.html" method="post">
<center><h2>Employee Number:</h2></center>
<center><input type="text" name="emplno" maxlength="4"size="4"></center></br>
<center><h2>Password:</h2></center>
<center><input type="password" name="pass" maxlength="6" size="6"></center></br>
<center><input type="submit" value="SUBMIT YOUR INFO"></center>
</form>
</body>
</html> DATA are GOING FROM LOGIN.HTML TO VARIFYLOGIN.JSP
Now in between these two i used an HTML file to place a frame so that i can use the frame and the code is:
<HTML>
<HEAD>
<TITLE> </TITLE>
<frameset cols="15%,85%">>
<frame name="frame1" src="buttons.html">
<frame name="frame2" src="varifylogin.jsp?emplno=<%=emplno%> &pass=<%=pass%>" >
</frameset>
</HEAD>
<BODY>
</BODY>
</HTML> "DOES ANYONE KNOW WHETHER I CAN USE FRAME IN THE JSP PAGE OR NOT"
and then it should go to VARIFYLOGIN.JSP which is:
String empl_no = request.getParameter("emplno");
   String password=request.getParameter("pass");
   Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" );
   Connection con = DriverManager.getConnection("jdbc:odbc:finalmp" );
   Statement stmt = con.createStatement();
   ResultSet rs = stmt.executeQuery("SELECT StaffID,FirstName,LastName,Password FROM StaffDetails");...................................................etc.
i am getting this error on the RIGHT hand side frame meaning it showing the buttons on the left but this error on the right:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:367)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:293)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
root cause
java.lang.NullPointerException
     org.apache.jsp.varifylogin_jsp._jspService(varifylogin_jsp.java:83)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:136)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:320)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:293)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856Can anyone please help me.
Cheers

i am working in jubuilder
and have made there three forms,and
calling s-aots and st_aots in fs_aots
but when i compile
it takes fiel,d text on seprate page display result on other window
why it dosent use frame here
2nd thing
i want to enable scrolling
how i can do
or how can i display required no of records in second row
if i mention page size in any check box
<html>
<head>
<title>
fs_aots
</title>
</head>
<jsp:useBean id="fs_aotsBeanId" scope="session" class="s_aots.fs_aotsBean" />
<jsp:setProperty name="fs_aotsBeanId" property="*" />
<body>
<FRAMESET Rows="30%" Framespacing="0">
<Frame Name ="Header" SRC="s_aots.jsp" Frameborder="0" Scrolling="no">
<FRAMESET Rows="70%" Framespacing="0">
<Frame Name="data" SRC="st_aots.jsp" Frameborder="0" Scrolling="yes">
</frameset>
</frameset>
</BODY>
</html>
<html>
<head>
<title>
s_aots
</title>
</head>
<jsp:useBean id="s_aotsBeanId" scope="session" class="s_aots.s_aotsBean" />
<jsp:setProperty name="s_aotsBeanId" property="*" />
<body>
<p>update database content
<form action="st_aots.jsp" method="post">
Region<input type=text name=Regionparam><br>
Bill Month From :<input type=text name=BmonthFparam><br>
Bill Month To:<input type=text name=BmonthTparam><br>
Connection Type:<input type=text name=Conntypeparam><br>
Exchanges:<input type=text name=Exchparam><br>
Phone No:<input type=text name=PhoneNoparam><br>
<input type=Submit value="Retrive from DB">
</form>
</BODY>
</HTML>
<html>
<head>
<title>
st_aots
</title>
</head>
<jsp:useBean id="st_aotsBeanId" scope="session" class="s_aots.st_aotsBean" />
<jsp:setProperty name="st_aotsBeanId" property="*" />
<%@ page language="java" import="java.util.*"%>
<table border=1 cellpadding=0 cellspacing=0 >
<tr><td> Phone No: </td>
<td> Current Bill: </td>
<td> Net Payable: </td>
<td>Net Arrers:</td>
<td>customer Name:</td>
<td>Customer Address:</td>
<td>Connection Type:</td>
</tr>
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
java.sql.Connection connection = java.sql.DriverManager.getConnection("jdbc:odbc:AOTS4");
java.sql.Statement statement = connection.createStatement();
Enumeration parameters = request.getParameterNames();
    if(parameters.hasMoreElements()){
    String REGION = request.getParameter("Regionparam");
    String BILL_MONTH_FROM = request.getParameter("BmonthFparam");
    String BILL_MONTH_TO = request.getParameter("BmonthTparam");
    String CONN_TYPE = request.getParameter("Conntypeparam");
    String EXCHANGES = request.getParameter("Exchparam");
    String PHONE = request.getParameter("PhoneNoparam");
   //String q;
   // statement.executeUpdate("INSERT INTO updatephonebook (LAST,FIRST,PHONE) VALUES ('"+LastValue+"','"+FirstValue+"','"+PhoneValue+"')");
// q= " SELECT PHONE_NO,GROSS_CURRENT_BILL,AMOUNT_PAYABLE,NET_ARRERS_AMOUNT,NAME,ADDRESS_1,ADDRESS_2,ADDRESS_3,ADDRESS_4,CONNECTION_TYPE FROM AOTS WHERE REGION_CODE='" +REGION+ "' AND BILL_PERIOD BETWEEN '" + BILL_MONTH_FROM + "' AND '"+BILL_MONTH_TO+"' AND CONNECTION_TYPE='"+CONN_TYPE+"' AND EXCHANGE_CODE='"+EXCHANGES+"' AND PHONE_NO='"+PHONE+"'";
   // System.out.println(q);
     java.sql.ResultSet columns = statement.executeQuery
    (" SELECT PHONE_NO,GROSS_CURRENT_BILL,AMOUNT_PAYABLE,NET_ARRERS_AMOUNT,NAME,ADDRESS_1,ADDRESS_2,ADDRESS_3,ADDRESS_4,CONNECTION_TYPE FROM AOTS4 WHERE REGION_CODE='" +REGION+ "' AND (BILL_PERIOD BETWEEN '"+BILL_MONTH_FROM+"' AND '"+BILL_MONTH_TO+"') AND CONNECTION_TYPE='"+CONN_TYPE+"' AND EXCHANGE_CODE='"+EXCHANGES+"' AND PHONE_NO='"+PHONE+"' ") ;
    //(" SELECT PHONE_NO,GROSS_CURRENT_BILL,AMOUNT_PAYABLE,NET_ARRERS_AMOUNT,NAME,ADDRESS_1,ADDRESS_2,ADDRESS_3,ADDRESS_4,CONNECTION_TYPE FROM AOTS4 WHERE REGION_CODE='" +REGION+ "' AND CONNECTION_TYPE='"+CONN_TYPE+"' AND EXCHANGE_CODE='"+EXCHANGES+"' AND PHONE_NO='"+PHONE+"' ") ;
     // java.sql.ResultSet columns = statement.executeQuery(q);
   // String sql = ("SELECT BILL_PERIOD,REGION_CODE,EXCHANGE_CODE,PHONE_NO,GROSS_CURRENT_BILL,AMOUNT_PAYABLE,NET_ARRERS_AMOUNT,NAME,ADDRESS_1,ADDRESS_2,ADDRESS_3,ADDRESS_4,CONNECTION_TYPE FROM AOTS WHERE REGION_CODE ='"+REGION+"' AND (BILL_PERIOD BETWEEN '"+BILL_MONTH_FROM+"' AND '"+BILL_MONTH_TO+"') AND CONNECTION_TYPE='"+CONN_TYPE+"' AND EXCHANGE_CODE = '"+EXCHANGES+"' AND PHONE_NO='"+PHONE+"') " );
     //System.out.println("THE SQL QUERY = " + sql);
      //java.sql.ResultSet columns = statement.executeQuery(sql);
                            while(columns.next()){
                            String Phone_No = columns.getString("PHONE_NO");
                            String G_C_Bill = columns.getString("GROSS_CURRENT_BILL");
                            String Amount_Payable= columns.getString("AMOUNT_PAYABLE");
                            String N_A_Amount= columns.getString("NET_ARRERS_AMOUNT");
                            String Name= columns.getString("NAME");
                            String Address1= columns.getString("ADDRESS_1");
                            String Address2= columns.getString("ADDRESS_2");
                            String Address3= columns.getString("ADDRESS_3");
                            String Address4= columns.getString("ADDRESS_4");
                            String C_Type= columns.getString("CONNECTION_TYPE");
%>
                            <TR>
                            <TD> <%=Phone_No %></td>
                            <TD> <%=G_C_Bill %></td>
                            <TD> <%=Amount_Payable%></td>
                            <TD> <%=N_A_Amount %></td>
                            <TD> <%=Name %></td>
                            <TD> <%=Address1 %>,<%=Address2%>,<%=Address3%>,<%=Address4%></td>
                            <TD> <%=C_Type %></td>
                            </tr>
                            <%}
}%>
                            </table>
                            </body>
                            </html>

Change the class and type in javascript or select statement of region

Application Express 3.2.0.00.27
I have a manually created tabular form where I need pk to be updatable or not not updateable depending on whether its a new record or not.
I am attempting this thru 2 different ways.
1st:
using decode in select statement of region:
SELECT decode(c001,NULL,APEX_ITEM.POPUP_FROM_LOV(15,c001,'AUTH_LOV',NULL,NULL,0,NULL,NULL,NULL,'YES','f15_' || '#ROWNUM#'),
apex_item.display_and_save(15,c001,'f15_'|| '#ROWNUM#')) authid,
apex_item.hidden(16, c002, NULL,'f16_'|| '#ROWNUM#') empid,
-- apex_item.display_and_save(16,c002,'f16_'|| '#ROWNUM#') empid,
apex_item.date_popup(17, rownum, c003, 'DD-MON-YYYY',20,2000,NULL,'f17_' || '#ROWNUM#')deldate,
apex_item.textarea(18,c004,5,40,NULL,'f18_'|| '#ROWNUM#') "Delegation scope",
apex_item.textarea(19,c005,5,40,NULL,'f19_'|| '#ROWNUM#')"Delegation limits",
apex_item.select_list_from_lov(20,c006,'YESNO_LOV',NULL,'NO','N','%','f20_'|| '#ROWNUM#')"ORA Signed",
apex_item.date_popup(21, rownum, c007, 'DD-MON-YYYY', 20,2000,NULL,'f21_' || '#ROWNUM#') "Del expiry",
apex_item.date_popup(22, rownum, c008, 'DD-MON-YYYY', 20,2000,NULL,'f22_' || '#ROWNUM#') "Date removed",
apex_item.textarea(23,c009,5,40,NULL,'f23_'|| '#ROWNUM#') "Delegation comments",
apex_item.POPUP_FROM_LOV(24,c010,'DELEGATION_LOV',NULL,NULL,0,NULL,NULL,NULL,'YES','f24_' || '#ROWNUM#') "Delegator",
apex_item.display_and_save(25,c011,'f25_'|| '#ROWNUM#') status,
-- apex_item.display_and_save(26,seq_id,'f26_'|| '#ROWNUM#') seq_id,
apex_item.hidden(26, seq_id,NULL,'f26_'|| '#ROWNUM#') ||
apex_item.checkbox(27, seq_id,NULL,NULL,':','f27_'|| '#ROWNUM#') chkbx
FROM apex_collections
WHERE collection_name = 'DELEG_COLL'
AND c011 IN ('O','N','U','D')
--order by c001However this approach yields this error when I try to pick a value from the lov:
Error: Can't move focus to the control because it is invisible, not enabled, or of a type that does not accept the focus.
My other approach is to attempt to change the type and class in javascript. I am trying this but I get an error when I attempt to change the class and type like this:
<script type="text/javascript">

</script>

not completely duplicate...here in this thread I am stressing what I am trying to accomplish and asking for help on the javascript side.

Expressions and scripting

Hi
I've several questions about programming in Ae
And I hope to find answers with you
1- What are the differences between : expressions and scripting ???
2- I'm not a programmer , so , can I be proficient in expressions ? and how ?
3- again , I'm not programmer
can I learning Java script ?

An expression is a little piece of softwaremuch like a scriptthat evaluates to a single value for a single layer property at a specific point in time. Whereas scripts tell an application to _do_ something, an expression says that a property _is_ something.
With expressions, you can create relationships between layer properties and use the keyframes of one property to dynamically animate other layers. For example, you can use the pick whip to link path properties, so a mask can take its path from a brush stroke or a shape layer object.
The expression language is based on the standard JavaScript language, but you do not need to know JavaScript to use expressions. You can create expressions by using the pick whip or by copying simple examples and modifying them to suit your needs.
Be sure to read the
"Expressions" section of After Effects Help on the Web.
Dan Ebberts has an excellent collection of example expressions and scripts and tutorials for learning how to work with expressions and scripts on his website: http://www.adobe.com/go/learn_ae_motionscripthome.
The AE Enhancers forum provides many examples and much information about expressions, as well as scripts and animation presets: http://www.adobe.com/go/learn_ae_aeenhancershome.
JJ Gifford provides several example projects on his website that demonstrate how to use expressions: http://www.adobe.com/go/learn_ae_jjgiffordexpressions.

Regular expressions using jsp

Hello Techies,
I am having a text area inside a jsp file. When ever the end user gives input it must be submitted to the server.
The real problem is when the end user gives special characters and double-quotes in this text area, jsp is preforming in abnormal way.
Can u guys tell me how to resolve this issue. i.e how to solve regular expressions in jsp.
Even though the end user gives special characters or double quotes we should take only the content.
Looking forward for u reply.
regards,
Ramu

The real problem is when the end user gives special characters and double-quotes in this text area, jsp is preforming in abnormal way.What do you mean with "jsp is preforming in abnormal way" ?
A arbitrary JSP does not care about double-quotes.
Can u guys tell me how to resolve this issue. i.e how to solve regular expressions in jsp.Usually the same way as you do it in a poj class.
Nobody here knows how your JSP looks like and who handles the request when the form is submited or even who generates the model of the data displayed by your JSP.
You have to provide us with more details.

JSP language javascript

What is the problem?
<%@ page language="javascript" %>
<%
var i;
for ( i=1; i<5; i++ )
out.println("JSP whit JavaScript <br>");
%>

What is the problem?
<%@ page language="javascript" %>
<%
var i;
for ( i=1; i<5; i++ )
out.println("JSP whit JavaScript <br>");
%>The <% and %> tags indicate a Java scriptlet.
"var" is JavaScript syntax, the rest is Java.
out.println is a Java method.
If you want to do your loop in JavaScript then it would
be like this:
<script>
for ( var i = 1; i < 5; i++ )
document.writeln("JSP whit JavaScript <br>");
</script>

Binding expressions and collections

<quote>
In addition to being able to read the initial value of a field from an object, value binding expressions can also be used to navigate maps, lists, or arrays. Here are some examples:
#{foo[bar]}
#{foo["bar"]}
#{foo[3]}
#[foo[3].bar}
#{foo.bar[3]}
</quote>
Could anyone explain how does it work ? Is foo is always bean ?
Isn't #{foo["bar"]} identical to #{foo.bar}
Also in "Core JSF" they say #{foo.bar[3]} doesn't work if bar indexed property of a bean.
<anotherquote>
The syntax of a method binding expression has two primary formats:
#{expr-a.value-b}
#{expr-a[value-b]}
The first format is a classic DOM-style object tree structure. The second format can be used to call a method pointed to from an object array, Map, or List.
</anotherquote>
The same question how to use the second form.

An expression is a little piece of softwaremuch like a scriptthat evaluates to a single value for a single layer property at a specific point in time. Whereas scripts tell an application to _do_ something, an expression says that a property _is_ something.
With expressions, you can create relationships between layer properties and use the keyframes of one property to dynamically animate other layers. For example, you can use the pick whip to link path properties, so a mask can take its path from a brush stroke or a shape layer object.
The expression language is based on the standard JavaScript language, but you do not need to know JavaScript to use expressions. You can create expressions by using the pick whip or by copying simple examples and modifying them to suit your needs.
Be sure to read the
"Expressions" section of After Effects Help on the Web.
Dan Ebberts has an excellent collection of example expressions and scripts and tutorials for learning how to work with expressions and scripts on his website: http://www.adobe.com/go/learn_ae_motionscripthome.
The AE Enhancers forum provides many examples and much information about expressions, as well as scripts and animation presets: http://www.adobe.com/go/learn_ae_aeenhancershome.
JJ Gifford provides several example projects on his website that demonstrate how to use expressions: http://www.adobe.com/go/learn_ae_jjgiffordexpressions.

PHP regular expression to JSP?

Hi there,
I have the following PHP regular expression, and was looking for tips on how to create an equivalent in JSP using the 1.3.1 API. This has been causing me problems since the regex package didn't arrive until 1.4.
preg_match("/^(([\w\-\_])+(\.)*)+\@([\w\-\_]+\.)+[A-Za-z]{2,}$/i", $theAddress)Basically, it checks to make sure a valid email address pattern has been input.
Any help would be appreciated!
Thanks!

Though I donno about PHP and the related stuff that you've posted, I can help you by providing a JS function that you can invoke to check for the valid format of an e-mail ID, I guess if this is what you want.
function isEmail (s)
    // there must be >= 1 character before @, so we
    // start looking at character position 1
    // (i.e. second character)
    var i = 1;
    var sLength = s.length;
    // look for @
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;
    // look for .
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    // there must be at least one character after the .
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}'s' is the e-mail ID string that you want to check.
Hope you're assisted.
fun_one

Juggle between jstl and jsp!

I have a list of items and whose size is obtained by jstl as follows:
<c:set var="num" value="${fn:length(form.namesList)}"/>I have to find the number of blocks using jsp and I am trying as follows which is giving jspException.
<%int numCols = (int)Math.ceil( num / 10.0);%>Can anyone tell me the problem over here?
I need to use numCols to display my results using jstl as follows:
<c:forEach var="y" begin="${1}" end="${numCols }">
</c:forEach>Can juggle between jstl and jsp like this?

This depends on the version of JSP you are using:
If you are using JSP 2.0 (like Tomcat 5), make sure you have downloaded and installed JSTL 1.1 and set the web.xml up to use the Servlet 2.4 specs. Then the code you wrote should work.
If you are using JSP 1.x (like Tomcat 4 and below), make sure you have JSTL 1.0. Then you can only use EL (the Expression Language used to translate ${...} expressions) inside JSTL.
If you want to use EL inside your custome tags, look through the Apache Jakarta sight. Somewhere they have an ELExpression translator (a couple of classes actually - whose full names I forget). These classes will let you take the ${...} expressions in as strings, pass them through the translators and get the correct objects back out.
Or you could go a simpler root:
<mob:whatever object="test" name="newname" />
then in your custom tag:
MyType test = (MyType)pageContext.findAttribute(object);
test.setName(name);

Tomcat 4.0.x and JSP / JSTL performance problems.

Hello everyone,
I've got a web application where some of my JSP pages are rendering quite slowly. As an example I'll use a JSP page that I wrote for browsing through a user database. It uses two beans...
1. jobBean - Ensures that all of the required (and correct) beans that will be used for processing the request have been loaded.
2. browserBean - A basic JavaBean that holds a set of UserBean(s) and other information pertinent to database queries (start, limit, order).
I'm using Apache Struts to map requests to the appropriate processing modules. Now the problem I'm having is that each request is taking between 1 and 2 seconds to execute. As you can imagine that's not going to allow for very many simaltaneous users. I've tracked the problem down to something JSP related. All of my code executes fairly quickly (I think). It takes about 20-30ms for my code to identify the request, load the requested data from the database, and convert it into a usable format (the browserBean). Here's my code...
<%@ page contentType="text/html"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<META http-equiv="Cache-Control" content="no-cache">
<title>
Browse Users
</title>
</head>
<body>

<jsp:useBean id="jobBean" class="com.vacode.jobs.generic.JobBean" scope="session" />
<jsp:useBean id="browserBean" class="com.vacode.mqdb.beansets.user.UserBrowserBean" scope="session" />



<c:if test="${jobBean.currentJob.name != 'BrowseUserJob'}">
     
     <c:url var="browseUser" value="manageUsers.do">
          <c:param name="action" value="browse" />
     </c:url>
     <c:redirect url="${browseUser}" />
</c:if>
<form action="manageUsers.do" method="get">
     <input type="hidden" name="action" value="browse">
     <input type="hidden" name="start" value="<c:out value="${browserBean.dummyStart}" />">
     <input type="hidden" name="order" value="<c:out value="${browserBean.order}" />">
     I would like to view
     <select name="limit">
          <c:forEach begin="1" end="5" var="current">
               <option value="<c:out value="${current*5}" />"
                    <c:if test="${browserBean.dummyLimit == current*5}">
                    selected
                    </c:if>
               >
                <c:out value="${current*5}" />
               </option>
          </c:forEach>
     </select>
     results per page.
     <input type="submit" action="submit">
</form>
<c:url var="id" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_ID" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="name" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="firstName" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_FIRST_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="lastName" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_LAST_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="email" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_EMAIL_ADDRESS" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="organization" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_ORGANIZATION_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="status" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_STATUS_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="role" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="ROLE_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<table>
     <tr>
          <td><a href="<c:out value="${id}" />">Id</a></td>
          <td><a href="<c:out value="${name}" />">User Name</a></td>
          <td><a href="<c:out value="${firstName}" />">First Name</a></td>
          <td><a href="<c:out value="${lastName}" />">Last Name</a></td>
          <td><a href="<c:out value="${email}" />">E-Mail</a></td>
          <td><a href="<c:out value="${organization}" />">Organization</a></td>
          <td><a href="<c:out value="${status}" />">Status</a></td>
          <td><a href="<c:out value="${role}" />">User Type</a></td>
     </tr>
<c:forEach items="${browserBean.beans}" var="bean">
     <tr>
          <c:url var="manage" value="manageUsers.do">
               <c:param name="action" value="modify" />
               <c:param name="beanId" value="${bean.userId}" />
          </c:url>
          <td><a href="<c:out value="${manage}" />"><c:out value="${bean.userId}" /></a></td>
          <td><c:out value="${bean.userName}" /></td>
          <td><c:out value="${bean.firstName}" /></td>
          <td><c:out value="${bean.firstName}" /></td>
          <td><c:out value="${bean.email}" /></td>
          <td><c:out value="${bean.organizationName}" /></td>
          <td><c:out value="${bean.statusName}" /></td>
          <td><c:out value="${bean.roleName}" /></td>
     </tr>
</c:forEach>



</table>
<c:url var="next" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="${browserBean.nextPageStart}" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
     <c:param name="order" value="${browserBean.order}" />
</c:url>
<c:url var="previous" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="${browserBean.previousPageStart}" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
     <c:param name="order" value="${browserBean.order}" />
</c:url>
<c:if test="${browserBean.previousPageStart>-1}">
     <a href="<c:out value="${previous}" escapeXml="false" />">previous</a>
</c:if>
<c:if test="${browserBean.nextPageStart>-1}">
     <a href="<c:out value="${next}" escapeXml="false" />">next</a>
</c:if>
<br>
<br>
Quick Jump To Page:
<c:forEach varStatus="loopTag" items="${browserBean.pageStartValues}" var="current">
<c:choose>
     <c:when test="${loopTag.index+1==browserBean.currentPageNumber}">
          <c:out value="${loopTag.index+1}" />
     </c:when>
     <c:otherwise>
     <c:url var="thisPage" value="manageUsers.do">
          <c:param name="action" value="browse" />
          <c:param name="start" value="${current}" />
          <c:param name="limit" value="${browserBean.dummyLimit}" />
          <c:param name="order" value="${browserBean.order}" />
     </c:url>
     <a href="<c:out value="${thisPage}" />"><c:out value="${loopTag.index+1}" /></a>
     </c:otherwise>
</c:choose>
</c:forEach>
<br>
<br>
Max Possible Pages: <c:out value="${browserBean.maxNumberOfPages}" />
<br>
Current Page: <c:out value="${browserBean.currentPageNumber}" />
</body>
</html>I've added comments where I timed my code from (by writing new Date().getTime() to the console). It usually takes between 1 and 2 seconds for that block of JSP to execute. I wrote a test class that should be very similar to the process (iterating over the forEach loop mainly) and it usually executed in 10ms to 20ms.
I had a look at the servlets that were generated by Tomcat and I noticed that for each <c:url> I used there's about 300 lines of code (with several syncronized() methods). Could this have anything to do with it? If so, what could I do to improve the performance?
Worth mentioning... The machine I am using is an AMD Athlon 1GHZ with 768MB RAM, 7200 RPM UDMA100 IDE HDD.
I'm also using Tomcat integrated with a development environment (IntelliJ IDEA).
Any help that anyone could offer is much appreciated.
Thanks,
Ryan

Can you get acceptable performance if you hack out everything except the browserBean forEach loop? Maybe you are trying to do too much runtime EL evaluation on the page.
If performance improves, you may want to push the URL construction and startValue computations to a Struts Action and put a bunch of objects on the requestScope (like "id_url", "name_url", "pageStartValue").
Putting these computations in the Action would avoid having JSTL parse each of the ${} arguments, evaluating the expressions, and using costly reflection to turn ${browserBean.order} into browserBean.getOrder().

Does Weblogic Express support JSP ?

Hi
I wanted to know if i can deploy JSPs if i use a WeblogicExpress instead
of a Weblogic Server .Iam not able to understand the deifference between
Weblogic Express and Weblogic Server inspite of reading the material on the
web site .Can someone throw more light on this ? Is there anywhere i can
compare the features of the different weblogic products at one place ?
thanks
Srinivas

For this type of stuff you should talk to your sales-person.
We just make it, not sell it, so we dont understand the difference
either. :)
Cheers
Mark G.
In article <[email protected]>, [email protected] says...
Hi
I wanted to know if i can deploy JSPs if i use a WeblogicExpress instead
of a Weblogic Server .Iam not able to understand the deifference between
Weblogic Express and Weblogic Server inspite of reading the material on the
web site .Can someone throw more light on this ? Is there anywhere i can
compare the features of the different weblogic products at one place ?
thanks
Srinivas
==================================================
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Rant 1.
The less info you provide about your problem means
the less we can help you. Try to look at the
problem from an external perspective and provide
all the data necessary to put your problem in
perspective.

Need help with Airport Express and so on.

Ok so my main problem before getting into what I need help with here is that our MacBooks and now my iPhone 6 plus isn't staying online. Keep getting booted off and then I either have to select the network again or it will eventually go back on. If anyone has a solution or so please feel free to answer that as well. I'm running on Roadrunner with a Netgear 600 wireless router and a motorola modem. Both of which I'll leave the link to below for a better look.
My Main Question: So I'm looking at a new wireless router mainly and possibly a new modem. I know Apple products are trustworthy but how good is the Airport Express and other Airport products. Also what is the Maximum speed and Maximum data speed for the cheapest express station and if anyone knows the speeds of the other devices it would be greatly appreciated.

DSL Router to Netgear 5-port Switch and I used the switch to connect to Airport Extreme, TV, Blue-Ray DVD player and DirecTV Receiver.
The AirPort Extreme base station (AEBS) is a router so it will do what you need.
You need to reconfigure your setup. Connect the WAN port of the AEBS to the DSL router. Then connect the Netgear switch to one of the LAN ports on the AEBS. The AEBS will properly share the connection.

WL vs. WL-express and JSP vs. javascript/SQL

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