How to write JAVASCRIPT in SERVLET

response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.print("<HTML><HEAD><TITLE> DATA NET</TITLE></HEAD>");
I have to write the following javascript code ......how to do??
-------------------------javascript code--------------------------------
<BODY onLoad=pageload();
<SCRIPT>
function pageload()
var time;
time=200;
URL=Default.jsp;
self.setTimeout(top.location.href =URL;,time);
</SCRIPT>
</BODY>

Wow! You've revived a 4 year old thread!
Well, putting your scripts into a separate JS file makes your page less messy and more importantly, allows reuse of your code. You simply need to link to the JS file instead of copying the same functions in every page. This also makes maintenance easy.
Also, "text/html" in the post above because the OP was sending HTML. Check this: http://krijnhoetmer.nl/stuff/javascript/mime-types/. It lists the MIME type for JavaScript and which browsers support which ones.

Similar Messages

How to write javascript in java class method

Hi,
any one please resolved this,
i want to write javascript window closing code into java class method, in that method i want to write javascript code & wanted to call in jsf page on commandButton action event,
my code is below but it is not working properly
public void closeWindowClicked(ActionEvent event) {
          try
     FacesContext facesContext = FacesContext.getCurrentInstance();
     String javaScriptText = "window.close();";
     // Add the Javascript to the rendered page's header for immediate execution
     AddResource addResource = AddResourceFactory.getInstance(facesContext);
     addResource.addInlineScriptAtPosition(facesContext, AddResource.HEADER_BEGIN, javaScriptText);
catch(Exception e)
     System.out.println(""+e);
for calling into jsf code is below
<h:commandButton action="#{parentBean.closeWindowClicked}" value="OK" />
/*Note- i want to closed the window by caling method contain javascript only, i don't want any ajax code in method */
please any one can resolved this.
Thanks

/*Note- i want to closed the window by caling method contain javascript only, i
don't want any ajax code in method */ When the user presses your button, do your business logic and then send them to a page containing the following (note: untested code ahead):
<html>
<head>
    function onLoadHandler()
        window.close();
</head>
<body onload="onLoadHandler();">
    <p>Window closing....</p>
</body>
</html>

How to write javascript code in SERVLET

response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.print("<HTML><HEAD><TITLE> DATA NET</TITLE></HEAD>");
I have to write the following javascript code ......how to do??
-------------------------javascript code--------------------------------
<BODY onLoad="pageload();">
<SCRIPT>
function pageload()
var time;
time="200";
URL="Default.jsp";
self.setTimeout("top.location.href=URL;","time");
</SCRIPT>
</BODY>

you are using this:
out.print("<HTML><HEAD><TITLE> DATA NET</TITLE></HEAD>");
to print the header of the HTML page...
I will ask again... what makes you think that writing Javascript or any other contents of an HTML page would be any different?

How to write from a servlet to it's war file?

We need to be able to write a file from a servlet into the document root
          area to it can be accessed by a browser. Before we used war files, we
          would simply figure out the real document root directory and write the
          file somewhere under it. How would I do this when my application is
          packaged as a war? I don't see a way to write to a "xxx.war" file and
          if we run from an exploded war, how do I determine the location of the
          document root at runtime from the servlet? I don't want to have to hard
          code the path or make each installation specifiy it in a properties
          file. It seems there should be a better way to handle this. Any ideas?


Thanks for your help. Not to beat this to death but say I want a response that
          includes a bunch of HTML generated by a servlet or JSP and in the middle I want
          a dynamically created image. So basically I want an <image> tag in the middle
          of the html returned. Could I dynamically generate the image and add it to the
          response in the middle of the servlet/JSP processing? I thought the only option
          would be to return an html page the referred to an image via an <image> tag.
          What do you think?
          Kirk
          Cameron Purdy wrote:
          > Hi Kirk,
          >
          > Yes, you can accomplish all of those things without writing files out.
          > Writing files will severely degrade performance in many cases, and will lead
          > to certain classes of bugs such as those caused by multiple browsers within
          > the same process or rampant use of "back" lists. (That's a long-winded way
          > of saying persistent state on the server that reflects a client's transient
          > state has a way of being wrong, sooner or later.)
          >
          > All you have to do is return a URL that includes the necessary information
          > to get the picture. You do that now by creating a random thingamabob name:
          >
          > http://www.mysite.com/myapp/thisisarandomname12345.jpg
          >
          > Instead of random, try:
          >
          > http://www.mysite.com/myapp/thisisthepictureforemployee-17.jpg
          >
          > The issues are the same (someone trying to guess URLs) but you do have the
          > problem that the URLs are easier to guess because they follow a pattern.
          > You should secure-check each request anyway. (Lots of tricks for making
          > that very efficient, but that is a book in itself.)
          >
          > So what serves up the .jpg? A Servlet!!! It gets the request, builds (or
          > reads from db or whatever) the .jpg image and streams it out. Now you get
          > 3-4 times the performance and a much more orderly arrangement of URLs etc.
          > that can now be "saved" and "bookmarked" etc. Also no congested temp dirs
          > etc.
          >
          > Peace,
          >
          > --
          > Cameron Purdy
          > Tangosol, Inc.
          > http://www.tangosol.com
          > Tangosol Server: Enabling enterprise application customization
          >
          > "Kirk Everett" <[email protected]> wrote in message
          > news:[email protected]...
          > > What I want to do is one one servlet request generate an image file in the
          > doc
          > > root and then return a page back to the browser that contains an image tag
          > > referring to the generated image file. I also want to be able to generate
          > a file
          > > of data based on a user's posted selections and then present them with a
          > link to
          > > download the file. If I don't write these to disk in the docroot how
          > would I
          > > give the user a link to them? Is there a better way? Thanks for your
          > help.
          > >
          > > Kirk
          > >
          > > Cameron Purdy wrote:
          > >
          > > > Yes, if you have to write a file (either because you expect it to be
          > used
          > > > many times or you wish to assemble a huge (>1mb) response without using
          > > > memory), then do so to a temp or working dir. There is no reason to use
          > the
          > > > doc root at all for that, other than to use FileServlet, which is eaily
          > > > replicated for your own specific purposes. For the most part, there is
          > no
          > > > reason to write the file, since you can write the response back to the
          > > > browser just as easily as to a file.
          > > >
          > > > Peace,
          > > >
          > > > --
          > > > Cameron Purdy
          > > > Tangosol, Inc.
          > > > http://www.tangosol.com
          > > > +1.617.623.5782
          > > > WebLogic Consulting Available
          > > >
          > > > "Kirk Everett" <[email protected]> wrote in message
          > > > news:[email protected]...
          > > > > I agree that in general this should be avoided but we have two cases
          > where
          > > > we
          > > > > need to write a file to the
          > > > > the document root. The first is we allow the user to generate a file
          > and
          > > > > download it to thier machine. So in
          > > > > one servlet the user selects the data and submits the form. The
          > servlet
          > > > then
          > > > > writes a file to the docroot and
          > > > > the user is then presented a link where they can download the file.
          > The
          > > > second
          > > > > is when we want to generate
          > > > > a chart image in a gif. The servlet writes the image to the docroot
          > and
          > > > another
          > > > > JSP refers to the image in an
          > > > > image tag. In both cases we are using mangled names and we clean up
          > the
          > > > files.
          > > > > Do you have a better solution?
          > > > > Thanks for your help.
          > > > >
          > > > > Cameron Purdy wrote:
          > > > >
          > > > > > Writing to a deployed application is generally a thing to be
          > avoided.
          > > > Among
          > > > > > other things, it is a potential security issue. Apps should be able
          > to
          > > > be
          > > > > > locked down (no OS write access except non-exec temp space). I
          > suggest
          > > > not
          > > > > > doing writes if at all avoidable. What are you trying to
          > accomplish?
          > > > > > Perhaps stream back a big file?
          > > > > >
          > > > > > Peace,
          > > > > >
          > > > > > --
          > > > > > Cameron Purdy
          > > > > > Tangosol, Inc.
          > > > > > http://www.tangosol.com
          > > > > > +1.617.623.5782
          > > > > > WebLogic Consulting Available
          > > > > >
          > > > > > "Kirk Everett" <[email protected]> wrote in message
          > > > > > news:[email protected]...
          > > > > > > We need to be able to write a file from a servlet into the
          > document
          > > > root
          > > > > > > area to it can be accessed by a browser. Before we used war files,
          > we
          > > > > > > would simply figure out the real document root directory and write
          > the
          > > > > > > file somewhere under it. How would I do this when my application
          > is
          > > > > > > packaged as a war? I don't see a way to write to a "xxx.war" file
          > and
          > > > > > > if we run from an exploded war, how do I determine the location of
          > the
          > > > > > > document root at runtime from the servlet? I don't want to have
          > to
          > > > hard
          > > > > > > code the path or make each installation specifiy it in a
          > properties
          > > > > > > file. It seems there should be a better way to handle this. Any
          > > > ideas?
          > > > > > >
          > > > >
          > >

How to refer javascript in servlets

Hi friends,
I have a doubt.In jsp we can use<%@ include file="sample.js"%>.How do you do the same operation in Servlets

hey,
first of all i would think about getRequestDispatcher().include(request,response), but at least at tomcat it works with .jsp files only (even html files can't be included...).
so i guess the only way out you have is the annoying
out.print(all_your_js_code_here)...

How can I run a servlet with Sun Java System Application Server PE 8?

I've created a package with a TestServlet.class inside, used the deploytool to create a WAR and deployed this using the autodeploy folder.
The filestructure has been generated and I find the TestServlet.class in
[installdir]\domains\domain1\applications\j2ee-modules\testProject\WEB-INF\classes\[packagefolderstructure]\TestServlet.class.
The context root is working fine, but I have no clue how I can run the servlet directly via the URL.
I've tried many things like
http://localhost:8080/testProject/TestServlet
http://localhost:8080/testProject/servlet/TestServlet
http://localhost:8080/testProject/servlet/[packagenamewithpoints]TestServlet
http://localhost:8080/testProject/servlet/[packagenamewithslashes]TestServlet
etc etc
Can somebody tell me please how to write URLs to deployed servlets? Or send me an example url and xml descriptor files?
Thanks a lot in advance!

in web.xml use servlet mapping
<servlet-mapping>
<servlet-name>TestServlet</servlet-name>
<url-pattern>/doit</url-pattern>
</servlet-mapping>then use http://localhost:8080/testProject/doit

How to write data to an XML file present under application server

frnds: can ne one tell me, how to write data in to a file, which is present under a application server
Ex: i want to write a string data in to a file test.txt which is present under "http://localhost:8080/<some_webapp>/test.txt"
Note:i have deploted a service<some_webapp> under Tomcat/webapps dir

Very simple. A servlet can writes to that file if it has the good rights.
In the servlet get (or post) method, use a code like this:
import java.io.*;
protected void doGet(HttpServletRequest req, HttpServletResponse resp) {
try {
String filePath = this.getServletContext().getRealPath("/text.txt");//See http://java.sun.com/products/servlet/2.2/javadoc/javax/servlet/ServletContext.html#getRealPath(java.lang.String)
         PrintWriter writer = new PrintWriter (filePath);
        //or BufferedWriter out = new BufferedWriter(new FileWriter(filePath));
        writer .println("aString");
       writer.flush();
        writer .close();
    } catch (Exception e) {
       e.printStackTrace();
}Hope That Helps

How to write the JTables Content into the CSV File.

Hi Friends
I managed to write the Database records into the CSV Files. Now i would like to add the JTables contend into the CSV Files.
I just add the Code which Used to write the Database records into the CSV Files.
void exportApi()throws Exception
          try
               PrintWriter writing= new PrintWriter(new FileWriter("Report.csv"));
               System.out.println("Connected");
               stexport=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
               rsexport=stexport.executeQuery("Select * from IssuedBook ");
               ResultSetMetaData md = rsexport.getMetaData();
               int columns = md.getColumnCount();
               String fieldNames[]={"No","Name","Author","Date","Id","Issued","Return"};
               //write fields names
               String rec = "";
               for (int i=0; i < fieldNames.length; i++)
                    rec +='\"'+fieldNames[i]+'\"';
                    rec+=",";
               if (rec.endsWith(",")) rec=rec.substring(0, (rec.length()-1));
               writing.println(rec);
               //write values from result set to file
                rsexport.beforeFirst();
               while(rsexport.next())
                    rec = "";
                     for (int i=1; i < (columns+1); i++)
                         try
                                rec +="\""+rsexport.getString(i)+"\",";
                                rec +="\""+rsexport.getInt(i)+"\",";
                         catch(SQLException sqle)
                              // I would add this System.out.println("Exception in retrieval in for loop:\n"+sqle);
                     if (rec.endsWith(",")) rec=rec.substring(0,(rec.length()-1));
                    writing.println(rec);
               writing.close();
     }With this Same code how to Write the JTable content into the CSV Files.
Please tell me how to implement this.
Thank you for your Service
Jofin

Hi Friends
I just modified my code and tried according to your suggestion. But here it does not print the records inside CSV File. But when i use ResultSet it prints the Records inside the CSV. Now i want to Display only the JTable content.
I am posting my code here. Please run this code and find the Report.csv file in your current Directory. and please help me to come out of this Problem.
import javax.swing.*;
import java.util.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
public class Exporting extends JDialog implements ActionListener
     private JRadioButton rby,rbn,rbr,rbnore,rbnorest;
     private ButtonGroup bg;
     private JPanel exportpanel;
     private JButton btnExpots;
     FileReader reading=null;
     FileWriter writing=null;
     JTable table;
     JScrollPane scroll;
     public Exporting()throws Exception
          setSize(550,450);
          setTitle("Export Results");
          this.setLocation(100,100);
          String Heading[]={"BOOK ID","NAME","AUTHOR","PRICE"};
          String records[][]={{"B0201","JAVA PROGRAMING","JAMES","1234.00"},
                           {"B0202","SERVLET PROGRAMING","GOSLIN","1425.00"},
                           {"B0203","PHP DEVELOPMENT","SUNITHA","123"},
                           {"B0204","PRIAM","SELVI","1354"},
                           {"B0205","JAVA PROGRAMING","JAMES","1234.00"},
                           {"B0206","SERVLET PROGRAMING","GOSLIN","1425.00"},
                           {"B0207","PHP DEVELOPMENT","SUNITHA","123"},
                           {"B0208","PRIAM","SELVI","1354"}};
          btnExpots= new JButton("Export");
          btnExpots.addActionListener(this);
          btnExpots.setBounds(140,200,60,25);
          table = new JTable();
          scroll=new JScrollPane(table);
          ((DefaultTableModel)table.getModel()).setDataVector(records,Heading);
          System.out.println(table.getModel());
          exportpanel= new JPanel();
          exportpanel.add(btnExpots,BorderLayout.SOUTH);
          exportpanel.add(scroll);
          getContentPane().add(exportpanel);
          setVisible(true);
      public void actionPerformed(ActionEvent ae)
          Object obj=ae.getSource();
          try {
          PrintWriter writing= new PrintWriter(new FileWriter("Report.csv"));
          if(obj==btnExpots)
               for(int row=0;row<table.getRowCount();++row)
                         for(int col=0;col<table.getColumnCount();++col)
                              Object ob=table.getValueAt(row,col);
                              //exportApi(ob);
                              System.out.println(ob);
                              System.out.println("Connected");
                              String fieldNames[]={"BOOK ID","NAME","AUTHOR","PRICE"};
                              String rec = "";
                              for (int i=0; i <fieldNames.length; i++)
                                   rec +='\"'+fieldNames[i]+'\"';
                                   rec+=",";
                              if (rec.endsWith(",")) rec=rec.substring(0, (rec.length()-1));
                              writing.println(rec);
                              //write values from result set to file
                               rec +="\""+ob+"\",";
                               if (rec.endsWith(",")) rec=rec.substring(0,(rec.length()-1));
                               writing.println(rec);
                               writing.close();
     catch(Exception ex)
          ex.printStackTrace();
     public static void main(String arg[]) throws Exception
          Exporting ex= new Exporting();
}Could anyone Please modify my code and help me out.
Thank you for your service
Cheers
Jofin

Help me!! How to use JavaScript with JSP ??

I am using JDeveloper and I created a screen in JSP which uses a bean for database connectivity and retriving info onto the page.
The page has a ListBox where list items are populated from the database.My requirement is
whenever the list is changed the page shuold be refreshed with the selected item info.
I tried to use 'JavaScript' for triggering the event with 'onChange' event of the ListBox.But the event is not getting invoked. I think JavaScript is not working with JSP.
Please help me with how to Use javaScript with JSP or any other alternative where I can meet my requirement.
I have one more question...I have gone through the JSP samples in OTN and I am trying do download the sample 'Travel servlet' which show list of countries...etc
I have also gone through the 'readme' but I don't know how to extract .jar file.
I would be great if you could help me in this.
Thanks!!
Geeta
null

We have a similar need. We have used Cold Fusion to display data from Our Oracle Database. We have a simple SElect Box in HTML populated with the oracle data. When someone selects say the State of Pennsylvania. then we have an On change event that runs a Javascript to go get all the cities in Pennsylvania.
Proble we are having is that inorder for the Javascript to work , we currently have to send all the valid data.
Do you know of any way to dynamically query the the Oracle database in Javascript

Passing variable from javascript to servlet!!!

Hi all,
I have one doubt,
can we pass a variable from javascript to servlet???
In Brief,
i am getting some values in javascript through jsp and the same values i
want to use in servlet.
Yes, i know i can get these values in servlet by using request.getParameter("");
But these values are dynamically generated so i dont know how many varaible are they!. so i am trying to put some array list so that i can forward this values to servlet.
But i can't get this array which is declared in javascript!! :( so any buddy can help me how to get this dynamically generated values in servlet!!!
Thanks in Advance!! :)

can you post a sample of your code?
remember to put it between tags

Can you plz tell m how to write Design Strategy in the scenario IDoc-- File

Hi,
can any body plz tell me how to write Design strategy, Preprocessing logic and post processing logic in the scenario IDoc-->File.
    My idoc is:
            Message Type: ZMMIPORDCHG
            Basic Type : ORDERS05.
lookup's are available.

Hi,
take a look at this document for an IDOC to IDOC Scenario,
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/cdded790-0201-0010-6db8-beb9bb2b2660
Use it as a template to design one side of the Interface and also take a look at this blog,
/people/prateek.shah/blog/2005/06/08/introduction-to-idoc-xi-file-scenario-and-complete-walk-through-for-starters
Regards,
Bhavesh

How to synchronize if one servlet read a file and anothe servlet update the

How to synchronize if one servlet read a file and anothe servlet update the file at a time?

Create a class that holds the reference to the file and do the whole file manipulation just in that class. than synchronize the read and write methodes. A reference to this file handler class can be stored to the servlet context in one servlet and read out from the servlet context in the other servlet.

How to write a wrapper class

I am new to the concept of wrapper classes. I have a small spell checker program that I need to access via a servlet by passing a string in and getting a string out with spelling suggestions. I could really use some advice on how to write a servlet that would do such a thing. TIA

grin1dan wrote:
I am new to the concept of wrapper classes. I have a small spell checker program that I need to access via a servlet by passing a string in and getting a string out with spelling suggestions. I could really use some advice on how to write a servlet that would do such a thing. TIABasically, a wrapper class is a class that "wraps" another - otherwise referred to as a "HAS-A" relationship (as opposed to a sub-class, which involves an "IS-A" relationship). It does this by including an instance of the wrapped class as one of its fields.
In many cases, wrapping is actually superior to inheritance.
I don't know how this fits with your servlet, but - assuming that your SpellChecker is implemented as a class - all you need to do is have your servlet define a "spellchecker" field; perhaps something like:
private final SpellChecker spellCheck = new SpellChecker();Probably worth reading up on though. Google "wrapper classes" and "forwarders".
Winston

How to execute javascript code in VBScript?

I'd like to execute similar javascript code for some particular PDF files(parameters for pagenumber are quite different),such as:
this.setPageLabels(0, [ "A", "", 3] );
this.setPageLabels(1, [ "r", "", 1] );
this.setPageLabels(16, [ "D", "", 1] );
How to write the code in VBScript?
Thanks in advance!
P.S. I try to add code but end up with error messages
=================================================================
path = "E:\test.pdf"
'//Write the first and last pagenumbers and label to a txt.
set oWs = CreateObject ("Wscript.Shell")
set fs = CreateObject("Scripting.FileSystemObject")
oWs.run "Acrobat.exe"
While not oWs.AppActivate("Adobe Acrobat") : Wscript.Sleep 1000 : Wend
Set objArgs = WScript.Arguments
if objArgs.Count = 1 then path = ObjArgs(0)
Set gApp = CreateObject("AcroExch.App")
Set AVDoc = CreateObject("AcroExch.AVDoc")
If (AVDoc.Open(Path,"")) Then
Set AVDoc = gApp.GetActiveDoc()
Set PDDoc = AVDoc.GetPDDoc()
Set JSO = PDDoc.GetJSObject
'// Write Bookmark JS to a variable
Ex = " var vTOC = """"; "&vbLF _
& " var s = """"; "&vbLF _
& " var i=0; "&vbLF _
& " p = i+1; "&vbLF _
& " vTOC += ( this.getPageLabel(i) +""|""); "&vbLF _
& " i= this.numPages-1 ; "&vbLF _
& " p = i+1; "&vbLF _
& " vTOC += ( this.getPageLabel(i) +""|""+p+""|""); "
' // Execute the JavaScript
Set AForm = CreateObject("AFormAut.App") 'from AFormAPI
AForm.Fields.ExecuteThisJavaScript EX
' // Write Bookmarks to CSV (PageNr;Level;Text)
Set JSO = PDDoc.GetJSObject '//->renew JSO for some unknown reasons
xf = jso.vToc
Set objIE = CreateObject("InternetExplorer.Application")
objIE.Navigate("about:blank")
objIE.document.parentwindow.clipboardData.SetData "text", xf
objIE.Quit
CsvFN = left(path, InstrRev(path, ".")-1) &"_page.txt"
set FL = fs.OpenTextFile(CsvFN, 2, true) '//-> 2=ForWriting
xWr = split(xf,"|")
for x=0 to UBound(xWr)
FL.WriteLine xWr(x)
next
FL.Close
Else
MsgBox "Failed to Open: " & Path
End If
Set JSO = Nothing
Set PDDoc = Nothing
Set AVDoc = Nothing
Set AForm = Nothing
Set gApp = Nothing

If I remember right, I wrote this script a while back to demonstrate how java script can be direct executed and how you can get back the results. Didn't I wrote a commentary to that?
However the parts you need:
' // Write JS code from help file or whatever to a VBS variable:
JsFromHelp = " this.setPageLabels(0, [ ""A"", """", 3] ); "&vbLF _
& " this.setPageLabels(1, [ ""r"", """", 1] ); "&vbLF _
& " this.setPageLabels(16, [ ""D"", """", 1] ); "
' // Execute the JavaScript
Set AForm = CreateObject("AFormAut.App") 'from AFormAPI
AForm.Fields.ExecuteThisJavaScript JsFromHelp
From the rest keep only:
end if
set .. = nothing
Untested, but should work - as far as you have a little bit more then only Reader.
HTH, Reinhard

How to write Java Scripts in Apex

Hi All,
Can any on tell me how to write Java Scripts in Apex.
Thanks in Advance,
Mukund

If you want to link your custom JavaScripts to an Apex page, you have several options:
1. Add an HTML Region on Page 0 (Script will be written to every page) called something like "JavaScript & CSS". In this region add your Script to the region source like this:
<script language="JavaScript">
function hell ()
alert ("Hello World");
</script>
2. Add a similar region to the page you are working on (can only be accessed on this page)
3. Create an external JavaScript file and either load it into the WORKSPACE or into the images (/i/) directory on the server. You can then link the JS into you page via modifying the Page Template.
Hope that makes sense. Let me know if you want any further help with option 3.
Duncs

How to write JAVASCRIPT in SERVLET

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