JAR file an JSP pages

How do i include a JAR file in my JSP page?

How do i include a JAR file in my JSP page?depends on what you are trying to do. If you want to access the class files in the jars for use in the jsp, just put the jar in the server's classpath. In tomcat, that would be <INSTALL_HOME>\common\lib.
Cheers,
ram.

Similar Messages

How to import a jar file in JSP

How to import a Jar file in JSP Page.
please reply its very urgent!

Hey I am facing a similar problem:
I have this jar file lbswebservice.jar that I have to use for my application.
I added it to the classpath, I copied it in my WEB-INF/lib folder, but when I try to access classes in this package, it doesnt work.
For example the jar contains the package com.blipsystems.lbs.ws.messages.* ; that contains different classes, like the Campaign class.
I tried to use this class (just to create an object) in different context (through jsp, or just through java test classes), but it never works, i get the error: com.blipsystems.lbs.ws.messages.Campaign cannot be resolved to a type
I am a bit desperate here...

How can i render a dynamic html file in jsp page

Hi everybody,
i am trying to render a dynamic html file in jsp page with the result of querying a database.
The response of the query is a xml document. And i have a stylesheet to transfer it to html.
How can i render the html in a jsp file?

I am using below code for HTML files
private var appFile:String="index.html";
if (StageWebView.isSupported)
                    currentState = "normal";
                    webView.stage = stage;
                    webView.viewPort = new Rectangle( 10, 130, (stage.stageWidth)-20, 750 );
                    var fPath:String = new File(new File("app:/assets/html/aboutus/"+ appFile).nativePath).url;
                    webView.loadURL(fPath);
                    addEventListener(ViewNavigatorEvent.REMOVING,onRemove);
                else {
                    currentState = "unsupported";
                    lblSupport.text = "StageWebView feature not supported";
above code is working fine for me.

How can i call java class file in jsp page

Hai,
i wants to call .class file in jsp page.
my class file is in C:\jsdk\bin.
Thanks

I'm not entirely sure what you mean by "calling a class file", but I'm going to assume that you want to do something like the following in your page:
<%
MyClass myClass = new MyClass();
myClass.someMethod();
%>etc
If that's the case, then all you have to do is make sure that the class is in the servlet engine's classpath. You'll probably also need to include an appropriate import statement at the top of the page.
Hope that helps.

Forwarding to an xml file from jsp page

hi
i am subhash. i have problem in forwarding an xml file from jsp page.
i have a jsp page in which i have a button. upon click, its form method is triggered and the action is set to "serverpage.jsp". In that jsp page i have to move to an xml file. I would like u to send a sample code also for the same.
Thank You,
Subhash..

Refer to the Generating XML from JSP section.
http://java.sun.com/developer/technicalArticles/xml/WebAppDev2/

How to call cystal report8 report file from jsp page

hi guys
present i am using cystal report8 already i am having ReportViewer.jar and ReportviewerBean.jar files
using that please send me sample code how to call that report from jsp page..
and how to pass the parameters from jsp page to crystalreport8 report file.
it was very urgent task to me..so please send sample code on above topic..
or send me crystalreport8 API
thanks
regards

Hi,
I also want to work on crystal report but i dont have the ReportViewerBean.jar and ReportViewer.jar. So, please tell from where will i get those jar files.
Thanks in advanced.

How to call a .jar file in JSP

Hi Folks,
I would like to know how to call a .jar file in a JSP page..
Thanks in adv.

Any web app creating tutorial can. You know, if this doesn't ring a bell with you at all, I don't really feel inclined to explain it to you because I think you shouldn't yet be dealing with JEE in the first place.
http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/WebComponents3.html

ClassNotFoundException when trying to access applet (jar) from a jsp page?

I have my applet in a jar file and I am specifying the applet tag in my jsp page as follows:
<applet code="website.utils.DragDropUploadApplet.class" name="DragDropApp" width="17" height="17" archive="utils.jar" codebase="." ></applet>
I tried with and without the codebase. The jar file is at the same location as the jsp page which has the above applet tag, however I get a ClassNotFoundException in the Sun Java Console in Internet Explorer. Any inputs on resolving this will be much appreciated.
Here is the error:
load: class website.utils.DragDropUploadApplet.class not found.
java.lang.ClassNotFoundException: website.utils.DragDropUploadApplet.class
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadCode(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
at sun.applet.AppletClassLoader.getBytes(Unknown Source)
at sun.applet.AppletClassLoader.access$100(Unknown Source)
at sun.applet.AppletClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 10 more
Exception in thread "Thread-12" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception in thread "thread applet-website.utils.DragDropUploadApplet.class" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
load: class website.utils.DragDropUploadApplet.class not found.
java.lang.ClassNotFoundException: website.utils.DragDropUploadApplet.class
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadCode(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
at sun.applet.AppletClassLoader.getBytes(Unknown Source)
at sun.applet.AppletClassLoader.access$100(Unknown Source)
at sun.applet.AppletClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 10 more
Exception in thread "Thread-13" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception in thread "thread applet-website.utils.DragDropUploadApplet.class" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
load: class website.utils.DragDropUploadApplet.class not found.
java.lang.ClassNotFoundException: website.utils.DragDropUploadApplet.class
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadCode(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
at sun.applet.AppletClassLoader.getBytes(Unknown Source)
at sun.applet.AppletClassLoader.access$100(Unknown Source)
at sun.applet.AppletClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 10 more
Exception in thread "Thread-14" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception in thread "thread applet-website.utils.DragDropUploadApplet.class" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
load: class website.utils.DragDropUploadApplet.class not found.
java.lang.ClassNotFoundException: website.utils.DragDropUploadApplet.class
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadCode(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
at sun.applet.AppletClassLoader.getBytes(Unknown Source)
at sun.applet.AppletClassLoader.access$100(Unknown Source)
at sun.applet.AppletClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 10 more
Exception in thread "Thread-15" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
load: class website.utils.DragDropUploadApplet.class not found.
java.lang.ClassNotFoundException: website.utils.DragDropUploadApplet.class
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadCode(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
at sun.applet.AppletClassLoader.getBytes(Unknown Source)
at sun.applet.AppletClassLoader.access$100(Unknown Source)
at sun.applet.AppletClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 10 more
Exception in thread "Thread-16" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception in thread "thread applet-website.utils.DragDropUploadApplet.class" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception in thread "thread applet-website.utils.DragDropUploadApplet.class" java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
at sun.plugin.AppletViewer.showAppletException(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Thanks,
Monisha

Hi mshah101,
This can happen if the applet is compiled using an higher version of java and the browser is pointing to an older version (even if minor version number is higher)

How do I import Jar files in JSP? (novice)

Hello,
I have developed BC4J UIX JSP in JDev9i. Every JSP there is a URI that points to an Oracle website:
<%@ taglib uri="http://xmlns.oracle.com/uix/ui" prefix="uix" %>.
This is causing errors for those that are trying to deploy on HP UX. They have asked me to import some .jar files(i.e. uixtags.jar, DataTags.jar, etc) into the pages and omit the above URL. Is this possible. If so can anyone help with how to do this. If it is not, is there a way to point to this website without doing so on the JSP page?
Thank you in advance
Rob

Put the jar files in WEB-INF\lib directory.
Now you can import the classes in the jar files in your JSP.

Calling jar file from jsp - serious problem !

Hi there, I'm trying to call a jar from a jsp file. I need an import clause in my jsp, to the class I want to use.
I'm using eclipse, and while i"m writing "<%= " and the begining of my class name , he autocompletes it and automatically puts an import of my class in the top of the html. It is very convenient , but the problem is that he underling the class name (in the impot: <%@page import="myClass"%>), and I get "The import myClass cannot be resolved" error.
I got an advice to put my class in a package, since it was in a default package. I did it. But now I have 2 problems:
1. I can't run my jar in command window: java - jar myJar.jar. in gives me: Exception in thread "main" java.lang.NoClassDefFoundError....
2. I still get an error - "The import myClass cannot be resolved" in the jsp, although I threw the old jar (that his class I want to use was out of package), and brought a new jar after creating it.
I hope I managed to clarify myself. I'll be thankful of any help !!!

Hi MSoldier.
There are two ways to do this:
1) You use the java.lang.Runtime classes to start the java application in your JAR file, just like you would have done it from the command line. The Runtime class has three different exec() methods that can be used to run any program just like you would from the command line. Remember, using this method you will have to write everything just like if you run your Java application from the command line, incl. classpath etc. This way your Java application will be run as a separate process. When the application finishes the process is shutdown and the resources (RAM etc.) taken by it freed, just like when you shutdown any other application.
2) You can open the JAR file yourself from inside the JSP page, look inside the META-INF file to find the main class, and then calls the main class main method. There is an example of how to do this in the Java Tutorial available from Sun under the JAR files track. Check these links :
The Java Tutorial at Sun
http://java.sun.com/docs/books/tutorial/
The JAR File Tutorial at Sun
http://java.sun.com/docs/books/tutorial/jar/index.html
Opening JAR Files via the Java JAR File API
http://java.sun.com/docs/books/tutorial/jar/api/index.html
Note however, if you have just created some classes that you want to use from inside your JSP pages, and not a separate application that needs to be run separately, you should just include the JAR file with your custom classes inside the WEB-INF/lib directory. These classes are then automatically available to your JSP pages, just like the rest of the Java API.
I hope this answers your questions,
Kind Regards,
Jakob Jenkov
Software Architect
Jenkov Development
www.jenkov.com

Open File Dialog - JSP pages

If I create a jsp page with an open file dialog will it work no matter what OS people are running? What I want to do is attach a file. It would be preferrable if I could set a "working" directory and when I open up the dialog it starts in that directory. It has to work with Windows, Macs, and Linux . If there is no way to set the "working" directory, can a cookie be created that remembers the last directory accessed from the page so that when they open up the dialog it opens up under the last directory accessed?

there is a html input type that sparks up the OS native filechooser. Thus, it should be platform independent. You should look into Apache Commons FileUpload, as it makes the process of uploading/sending files ridiculously easy.

How to search for file in jsp page

i need help on how to search for a file in a folder where there is a lot of subfolder.like how u search in a document in windows. i need a complete codes in jsp page.
thank you in advance.
Message was edited by:
n_dilah

no i need to do a search engine in jsp page which is the j2ee.
i type smth than tat file from any folder will appear the same way when u need to search your file in a document in windows.
well can u nice people tell me where i can get the codes bcos i stinks when it come to programming.
thank you very very very much.

PAR files and jsp pages into NWDS

Hi,
I need to modify transactions from the MSS 50.x package, i.e. HR transactions. I need to delete some fields on the screens.
The sysadmin was giving me a par file
com.sap.pct.hcm.attendanceoverviewperiod.par.bak
But when I import the par file into NWDS, the only thing I see is the portalapp.xml and a bunch of attribute files.
No jsp page, no class files..
When I browse into the directoria via sysadmin/support/portal runtime via WEB-INF, I do see all the necessary files. But how do I get the whole bunch of classes, jsp etc into NWDS? Download all single elements and put them manually into a NWDS project? There must be a better way
Any help will be gracefully awarded

I tried it, but when I follow your instruction, NWDS gives me an error in the import wizard "<dir> does not have a .project file".
If I look in the .par file, there is no .project file at all.
I looked in the download of the PCD, there is no .project file either, but at least the java classes and the jsp.
Is it removed intentionally? Probably because it is an SAP business package?

Java File and JSP Page

I am to create a link verification program -- a simple java file with the database connection & some business logic and a JSP page that instantiates the my java file. It won't work. Everytime I run the jsp page, it gives me java.lang.NullPointerException. Can anyone give me some directions? The web server I am using is JRun.
Thank you
Below are my code:
JSP Page:
<%--      Verify Links
--%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<%@ page import="java.sql.*" %>
<%@ page import="java.net.*" %>
<%@ page import="pro.*" %>
<html>
<head>
<title>Results</title>
</head>
<body>
<%
try{
LinkConnection newconn = new LinkConnection();
newconn.initialize();
newconn.query();
newconn.close();
}catch (ClassNotFoundException cnfe)
out.println(cnfe);
catch (SQLException sqle)
out.println(sqle);
catch (NullPointerException npe)
out.println(npe);
%>
</body>
</html>
Java Code:
package pro;
import java.io.*;
import java.sql.*;
import java.net.*;
public class LinkConnection {
Connection con;
ResultSet RS;
Statement Stmt;
public void initialize() throws SQLException, ClassNotFoundException
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("XXXX", "XXXX", "XXXX");
public void query() throws SQLException
Statement Stmt=con.createStatement();
String strSQL="Select guideline_name, guideline_url from pgt_guidelines";
ResultSet RS=Stmt.executeQuery(strSQL);
while (RS.next())
String guidelinename = RS.getString("guideline_name");
String guidelineurl = ("http://" + RS.getString("guideline_url"));
try {
URL url = new URL(guidelineurl);
HttpURLConnection link=(HttpURLConnection)url.openConnection();
System.out.println("<font color='blue'>");
System.out.println(guidelinename);
System.out.println("<br>");
System.out.println(guidelineurl);
System.out.println("</font>");
System.out.println("<font color='red'>");
System.out.println(link.getResponseCode());
System.out.println("</font>");
System.out.println("<br />");
          }catch (Exception e)
          {System.out.println("<font color='yellow'>Error Link </font>")
public void close() throws SQLException {
RS.close();
Stmt.close();
con.close();

i'm having the same problem, what is the solution to this
A Servlet Exception Has Occurred
java.lang.NullPointerException
     at test.Lesson.runSql(Lesson.java:80)
===== Lesson.java file =====
package test;
import java.sql.* ;
import java.io.Serializable;
public class Lesson {
     public Lesson( ) { }
//Line 9
     public String runSql ( ) {
          String browserOutput = "";
          Connection sqlca = null;
          Statement sqlStatement = null;
          ResultSet myResultSet = null;
//Line 16
          /* Connect to database, run SQL and produce output */
          try {
               /* Connection to the database */
               Class.forName("org.gjt.mm.mysql.Driver").newInstance();
               String theDatabase ="jdbc:mysql://localhost/employee";
               sqlca = DriverManager.getConnection(theDatabase,"usr","pwd");
//Line 24
               /* Construct and execute the sql, positioning before the
               first row in the result set */
               sqlStatement = sqlca.createStatement();
               myResultSet = sqlStatement.executeQuery
//Line 29
               ("select emp_id, " +
                    "emp_lname, " +
                    "city, " +
                    "state," +
                    "zip_code, " +
                    "emp_fname " +
                    "from employee " +
                    "where emp_id < 250 " +
                    "order by emp_lname, emp_fname");
//Line 39
               /* Construct the heading for the table */
               browserOutput =
                    "<div align=left>"+
                    "<table border=0 align=left width=520>" +
                    "<caption><i><b>" +
                    "Employee Listing</b></i></caption>" ;
//Line 46
               /* Construct the column headings for the table */
               browserOutput +=
                    "<th align=left>Emp_id</th>" +
                    "<th>First Name</th>" +
                    "<th>Last Name</th>" +
                    "<th>City</th>" +
                    "<th>State</th>" +
                    "<th>Zip</th>" ;
//Line 55
               /* Move to next row and & its contents to the html output */
               while(myResultSet.next()) {
                    browserOutput += "<TR><TD>" +
               myResultSet.getObject("emp_id").toString() + "</TD><TD>" +
               myResultSet.getObject("emp_fname").toString()+"</TD><TD>" +
               myResultSet.getObject("emp_lname").toString() + "</TD><TD>" +
               myResultSet.getObject("city").toString() + "</TD><TD>" +
               myResultSet.getObject("state").toString() + "</TD><TD>" +
               myResultSet.getObject("zip_code").toString() + "</TD></TR>" ;
//Line 66
               }//end of while
               sqlStatement.close();
               sqlca.close();
          }//end of try
          catch (SQLException e) {
//Line 72
               browserOutput = " Error: SQLException: " + e.getMessage();
               browserOutput= " Error: SQLState: " + e.getSQLState();
               browserOutput= " VendorError: " + e.getErrorCode();
          }//end of SQLException
          catch (Exception e) {
               browserOutput = " Error: JDBC Class creation: " + e.getMessage();
          }//end of Exception
/**Line 80**/     finally {
               try { sqlca.close(); }
               catch(SQLException e) {
               browserOutput = " Error: Closing connection: " + e.getMessage();
          }//end of finally
     /* Complete the html and return it to the Java Server Page */
     browserOutput += "</table>" + "</div>" ;
     return browserOutput;
     } //end of runSql
}//end of Lesson

Dynamic include file in JSP page

<span class="value">Hi
i have index.jsp , this page can include jsp
pages dynamically by passing the name of the page to be included to the
index page with out .jsp , so if i want to include page "code.jsp" i
put: .../index.jsp?page=code , this have to include code.jsp page
i made the following code , but it did not find the file
so can any one help plz ?
        String pg=request.getParameter("page");
        if( pg!= null && ! "".equals(pg)){
                File f=new File(request.getParameter("page")+".jsp");
                if(f.exists()){
                        out.print("file exist");
                        %>
                        <jsp:include page="<%=request.getParameter("page")+".jsp" %>" />
        <%
                }else{
                        out.print("file not exist");


What does the file existing or not really have to do with it?
You can try it like this:
String pg=request.getParameter("page");
        if( pg!= null && ! "".equals(pg)){
                String webPath = pg + " .jsp";
                String realPath = request.getRealPath(webPath);
                File f=new File(realPath);
                if(f.exists()){
                        out.print("file exist");
                        %>
                        <jsp:include page="<%= webPath %>" />
        <%
                }else{
                        out.print("file not exist");
        }Alternatively you could try using a request dispatcher:
RequestDispatcher rd = request.getRequestDispatcher(webPath);
if (rd == null){
// doesn't exist
}

JAR file an JSP pages

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