How to invoke another class filter in servlet

I want to ask about Filter in servlet. I have 3 class Filter :
AFilter, BFilter, CFilter how can i invoke BFilter from AFilter and the BFilter invoke CFilter.
AFilter -> BFilter -> CFilter
How can i do that? What code should i put in web.xml?
thank :)

Filters are invoked in the order as its filter-mappings appear in web.xml.

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Hello all,
Now I am building a commnity of agents that can talk in Java, I have another Java-Based dialogue system to handle the dialogue between the agents. But I don'y know how to invoke the Java dialogue system file in the agent class.
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Help!!!!!please

Yep, vaguest of the vaguey vague vague.
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I'm guessing you want to call a method from a different class?
Assuming you have the "Runner" class and then "Agent1", "Agent2", etc.
Agent1 whatever = new Agent1();

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I've not see quartz... are you in Windows, Solaris, Linux, or Mac?
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Windows: java -jar myJAR.jar
Solaris java -jar myJAR.jar
Linux java -jar myJAR.jar
Mac?

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OS'es tend to thave their ways to accomplish this.
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Hi all,
I'm using Java Servlet to create a submit page. I want to let users to submit their products and as many as they like.
What I made several chechboxs of common products on the first part of the page, so that users can simply select from these common products. If they have more to submit, they can click a "Add" button, then another textfield is supposed to appear in the same page below the "Add" button and user can type in, then if they have more, they click "Add", another textfiled should apprear under the first added textfield, so on and so on. After finishing type in all their products, they can click "submit" button to submit to the database.
I want all the inputed data stay in the same page when user add more and more, so that they can alwasy see and change before submit. I had problem to detect the "Add" button and add new textfield while keeping all the data user has already inputed. How can I do this?
Tons of thanks!
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Hi
I normally use "hidden" tables for something like this. To accomplish the effect I use JavaScript and a stylesheet. Remember once the servlet sent the page to the browser, it can't interact with it anymore - you'll have to use client side script - which off course you can sent as part of your servlet output :-). I'm including some code that will get you on your way...
Style Sheet Code:.hide {display:none};
.show {display:block};
Java Script Code:var current = 0;
function showMore() {
if (current < 5) {
    current++;
    switch (current) {
      case 2:
        document.getElementById("showme2").style.display = "block";
        break;
      case 3:
        document.getElementById("showme3").style.display = "block";
        break;
      case 4:
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      case 5:
        document.getElementById("showme5").style.display = "block";
        break;
function showLess() {
if (current > 1) {
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        break;
      case 3:
        document.getElementById("showme3").style.display = "none";
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        break;
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        document.getElementById("showme5").style.display = "none";
        document.forms[0].term[4].value = "";
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Extract from JSP page (easy to convert to normal servlet code):
<table id="showme1" cellpadding="3" cellspacing="0" class="show">
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</table>

<% for (int i = 2; i < 6; i++) { %>
<table id="showme<%=i%>" cellpadding="3" cellspacing="0" class="hide">
     <tr><td><input type="text" name="someitem"></td></tr>
</table>
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//do something

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Hi,
I am trying to invoke classes at run-time.
I am using Class.forName("className") for that where the "className" is also obtained at run-time .
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How can I correct this?
thanks in advance-
kg

Hi,
Thanks all for the valuable inputs.
I have created a hashtable of primitive data types in the form of "int" as key and "Integer.TYPE" as the object in that element of the hashtable.
Now there is another problem I am facing and that is of 'Casting at run-time'.
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This causes "java.lang.IllegalArgumentException: argument type mismatch"
So I want to cast it at runtime. How can I do it?
Here is the code I am trying (which generates the above exception)
public static void setBeanField(Class pCls,Object pObj,String pMethodName ,Object pColumnValue,Class
pColumnTypeClass){
try{
if(pColumnValue!=null){
Class[] paramTypes = new Class[]{pColumnTypeClass};
Object[] args = new Object[]{pColumnValue};
Method meth = pCls.getMethod(pMethodName,paramTypes);
meth.invoke(pObj,args);
}catch(Exception e){
System.out.println("Exception in TestInrospection.setBeanField " + e);
thanks in advance-
kg

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Facing 'ConvertViewToHtml' does not exit in current context. Here is my code:
namespace ChangeControl3_Nov
class eGA_Utility
public static void SendmailwithTwo(string To, string subject, string Body, string frommail, byte[] docFile, byte[] docFile1, string fileName1, string fileName3)
string smtpServer = SPAdministrationWebApplication.Local.OutboundMailServiceInstance.Server.Address;
string smtpFrom = SPAdministrationWebApplication.Local.OutboundMailSenderAddress;
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mailMessage.From = from;
mailMessage.To.Add(new MailAddress(To));
mailMessage.Subject = subject;
mailMessage.IsBodyHtml = true;
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string fileName2 = fileName1;
Attachment attachment = new Attachment(stream, fileName2);
mailMessage.Attachments.Add(attachment);
MemoryStream stream1 = new MemoryStream(docFile1);
string fileName4 = fileName3;
Attachment attachment1 = new Attachment(stream1, fileName4);
mailMessage.Attachments.Add(attachment1);
SmtpClient smtpClient = new SmtpClient(smtpServer);
NetworkCredential oCredential = new NetworkCredential("", "");
try
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = oCredential;
smtpClient.Send(mailMessage);
catch (Exception)
I would like to call "ConvertViewToHtml()" from FormCode.cs in this line:
mailMessage.Body = ConvertViewToHtml();
namespace ChangeControl3_Nov
public partial class FormCode
public string ConvertViewToHtml()
try
byte[] sourceFile = null;
XPathNavigator root = MainDataSource.CreateNavigator();
string myViewName = this.CurrentView.ViewInfo.Name.Replace(" ", string.Empty);
string myViewXslFile = myViewName + ".xsl";
// Create the xsl transformer
XslCompiledTransform transform = new XslCompiledTransform();
transform.Load(ExtractFromPackage(myViewXslFile));
// Generate a temporary HTML file
string fileName = Guid.NewGuid().ToString() + ".htm";
string filePath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), fileName);
using (XmlWriter writer = XmlWriter.Create(filePath))
// Convert the XML to HTML
transform.Transform(root, writer);
writer.Close();
// Return the HTML as a string
sourceFile = File.ReadAllBytes(filePath);
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catch (Exception ex)
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How to do this? Thanks in advance!

Hi Sam,
According to your description, you might want to call a function from other class.
Before calling this function, it will require to initialize a FormCode object and then we can call the functions of the FormCode class.
You can take a look at the code snippet provided by tompsonn in this similar thread:
http://www.overclock.net/t/1411342/calling-a-function-from-another-form-c
More information about working with Partial Classes and Methods:
http://msdn.microsoft.com/en-us/library/wa80x488.aspx
Thanks

How to invoke custom classes from logon PAR

Hi all,
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Regards,
Ashwini.

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On the onClick method of the Submit button refer the even handler method you have defined in you DynPage and in that event handler you can instantiate the required java class and call its functions.
ex:
in you JSP define:
<hbj:button
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     tooltip="Click to search the forum"
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/>
in you DynPage define a event handler method called 'onSubmit(Event event)' and write you logic.
Cheers
Kiran

How to invoke a class or methods simultaneously

Hi
how can an class object or method invoke simultaneously for n numbers.
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praks

What do you mean? You want to start 5 threads at the same time? You can start them and let them wait on an object. Then you call notifyAll. It think this is the closest to a simultaneous start you can get.

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Here is the code that i use to compile:
File buildFile = new File(build.xml path);
String[] arg = { "-buildfile", buildFile.toString(), "compile" };
Properties userProps = null;
ClassLoader loader = ClassLoader.getSystemClassLoader();
Main.start(arg, userProps, loader);
The build.xml file was written correctly, infact if i lunch the command ant by dos it is correctly done.
When I put my application in tomcat/webapps and try to compile with code above I have the following error:
BUILD FAILED C:\......: Could not create task or type of type: property.
Ant could not find the task or a class this task relies upon.
This is common and has a number of causes; the usual
solutions are to read the manual pages then download and
install needed JAR files, or fix the build file:
- You have misspelt 'property'.
Fix: check your spelling.
- The task needs an external JAR file to execute
and this is not found at the right place in the classpath.
Fix: check the documentation for dependencies.
Fix: declare the task.
- The task is an Ant optional task and the JAR file and/or libraries implementing the functionality were not found at the time you yourself built your installation of Ant from the Ant sources.
Fix: Look in the ANT_HOME/lib for the 'ant-' JAR corresponding to the task and make sure it contains more than merely a META-INF/MANIFEST.MF.
If all it contains is the manifest, then rebuild Ant with the needed libraries present in ${ant.home}/lib/optional/ , or alternatively,
download a pre-built release version from apache.org
- The build file was written for a later version of Ant Fix: upgrade to at least the latest release version of Ant
- The task is not an Ant core or optional task and needs to be declared using <taskdef>.
- You are attempting to use a task defined using <presetdef> or <macrodef> but have spelt wrong or not defined it at the point of use
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Java code Snippet
import org.apache.tools.ant.*;// ant.jar
String SourceDir="c:\java";
     String DestinationDir="c:\classes";
     Project project = new Project();
     try
String baseDir = getServletContext().getRealPath( "/WEB-INF/build/");//Build.xml should be in this folder or else make use of the build folder here
     File buildFile = new File( baseDir, "build.xml");
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Build.xml
<?xml version="1.0"?>
<project name="Sample" default="compile" basedir=".">
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                    <fileset dir="${SrcDir}" includes="*.jar" />
               </classpath>
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     </target>
</project>

How to invoke Java class from post.POST.jsp

Hi All,
I am trying to invoke a simple java method from post.POST.jsp
I am getting below exception while doing it.
org.apache.sling.api.scripting.ScriptEvaluationException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP:
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The method test() is undefined for the type DatasourceUtil
29:
30:           ///
31:          com.day.test.datasource.DatasourceUtil dsUtil = new com.day.test.datasource.DatasourceUtilImpl();
32:          dsUtil.test();
33:           //dsUtil.validateLogin(request.getParameter("username"), request.getParameter("password"));
34:
35:           ////
It appears to resolve the class correctly. I could run the code, if I only comment dsUtil.test();. As soon as I uncomment, it gives above error.
In the Utill I have a simple void method which will print a simple text. My package structure is as follows.
any help will be great
Tx

1. In the interface [1] not the implementation[2] have u defined the method test?
2. If it is implemented, Change the bundle version in bnd file and make a new build. Then from felix console verify the latest version reflected in the bundles.
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[1] com.day.test.datasource.DatasourceUtil
[2]   com.day.test.datasource.DatasourceUtilImpl

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ex
if(condion)
we have to use tag
window.location="example.do";
thank u
sreevatsa adiraju

hi,
if that condition is like validation means, better to use client side script to execute when your condition is satisfied....
if my above answer is not satisfied to you means,,
post your code & ask in that...

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Process B is exposed to web service (right click process -> Process web service)
I copy the wsdl address and create a web service catalog component in Process A.
However, I do not know how to invoke another process when adding an interactive activity.
Could anyone tell me how to do it or where the document is?
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Hi, I believe what you want to do is a "Process Referral" which allows you to communicate to another process even on a different engine. I am working on memory here but I think you can go into the engine settings and create a referral which will allow you to enter organization, engine, and the URL for the process location. Please let me know if this is the answer you were looking for.

How to call Java class from Forms 6i?

Hi friends,
I need to call a Java class from my Forms 6i application.
(It runs under WIndows XP. It's a client/server application and I have only the client and the Form builder installed on my PC)
I don't know almost anything about Java's world so your help would be very useful for me.
Could you tell me exactly what i have to do?
I've read in metalink several Notes, but they supposed that the Java architecture is already installed in the computer.... I only have the default installation of Developer 6i... so I would need to know:
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- How to invoke the .class from Forms 6i.
Thanks a lot
Jose.

And also this one:
Problem Description
Installed Forms 6i Rel 2 on a MS Windows machine. When trying to Import the Java
Classes getting the errors
PDE-UJI0001 Failed to create the JVM
Solution Description
You need to to install JDK 1.2.2 to run the Java Importer. And set the PATH's
and classpath's correctly.
Explanation
1. Download and install the JDK 1.2.2.
Possibly available at: http://java.sun.com/products/archive/
2. Assuming the JDK 1.2.2 is installed in c:\jdk1.2.2 directory and the JRE in
C:\PROGRA~1\JAVASOFT\JRE\1.2 directory; ORACLE_HOME=C:\Dev6iR2.
Set the PATH to
set PATH=c:\jdk1.2.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin\classic;%PATH%
( If you are using ias9i then the JDK 1.2.2 comes with the ias installtion ,
in this case please set the PATH to
D:\ias9i\Apache\jdk\bin;D:\ias9i\Apache\jdk\jre\bin;D:\ias9i\Apache\jdk\jre\bin\classic;%PATH% )
3. Set the CLASSPATH to set CLASSPATH=%CLASSPATH%;C:\Dev6iR2\TOOLS\COMMON60\JAVA\IMPORTER.JAR;.
(If you do not set the CLASSPATH correctly you will get the error
PDE-UJI002 Unable to find the required java importer classes)
4. Now run the Forms Builder by using the command.
C:\Dev6iR2\bin\ifbld60.exe
Now the Java Importer Should Run fine.
Francois

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In my first servlet named TransferServlet ,I want to invoke another servlet named PublisherServlet.So I wrote the codes:
URL objURL = new URL("http://localhost:8080/servlet/PublisherServlet") ;
HttpURLConnection hucConnection = (HttpURLConnection)objURL.openConnection() ;
hucConnection.setDoOutput(true) ;
hucConnection.setRequestMethod("POST") ;
hucConnection.connect() ;
but i can't invoke PublisherServlet. pls help me.
Thanks a log

Try this:
String strURL = "http://localhost:8080/servlet/PublisherServlet";
URL url = new URL(strURL);
URLConnection con = url.openConnection();
con.setDoInput( true );
con.setDoOutput( true );
con.setUseCaches( false );
//con.getOutputStream().write(bArr);
BufferedReader inStream = new BufferedReader(new InputStreamReader(con.getInputStream()));
String strResponse;
while ((strResponse = inStream.readLine ()) != null)
sbfResponse.append (strResponse+"\n");
inStream.close ();

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