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How to get context path in JQuery?

Suppose you want to get your context path in JS/JQuery on clicking an Button like, In JSP/HTML:- <input type="button" id="myButton"> In JQuery :- $('# myButton ').click(function() { console.log( myC ontextPath ); }); Then you can pass values to JS/JQuery as, <input type="button" id="myButton" myContextPath="${pageContext.request.contextPath}"> Then in JS/JQuery you can write as, $('# myButton ').click(function() {         var  myC ontextPath  = $(this).attr(' myC ontextPath '); console.log( myC ontextPath ); });
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How to send mail from Liferay Portlet?

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import java.io.IOException; import javax.mail.internet.AddressException; import javax.mail.internet.InternetAddress; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletException; import com.liferay.mail.service.MailServiceUtil; import com.liferay.portal.kernel.mail.MailMessage; import com.liferay.util.bridges.mvc.MVCPortlet; /** * Portlet implementation class FeedbackPortlet */ public class FeedbackPortlet extends MVCPortlet { public void sendEmail(ActionRequest actionRequest, ActionResponse actionResponse) throws IOException, PortletException { MailMessage mailMessage = new MailMessage(); mailMessage.setHTMLFormat(true); mailMessage.setBody("Your mail body"); mailMessage.setFrom(new InternetAddress("from_mail_id@something.com","Display Name in Inbox")); mailMessage.setSubject("Messag...
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How to clear cache programmatically in JSP?

By adding below lines in JSP page we can achive this: <%              response.setHeader("Cache-Control","no-cache"); //HTTP 1.1              response.setHeader("Pragma","no-cache"); //HTTP 1.0              response.setDateHeader ("Expires", 0); //prevents caching at the proxy server   %> Other solution is by adding below lines in <head></head> of your JSP page: <meta http-equiv="Pragma" content="no-cache"> <meta http-equiv="Cache-Control" content="no-cache"> <meta http-equiv="Expires" content="Sat, 01 Dec 2001 00:00:00 GMT">
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How to remove do-search.com from Mozilla Firefox?

Step 1. Open Firefox Step 2. In Address Bar type  about:config then hit enter. Step 3. Then Click I'll be careful, I promise!  button. Step 4. Then at top in Search text box type  do-search and you will get all entries for this infection. Step 5. Right click on them one by one and select RESET option. Step 6. Then Restart Firefox.
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Steps to crearte facebook application at Facebook Developers Page.

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For login with facebook to work we have to create a facebook application at Facebook Developers Page using following steps, 1. Login to Facebook Developers Page . 2. Goto " My Apps " menu. 3. Click " Add a New App " option. 4. In popup select " WWW " symbol which represent website login. 5. Then give a application name in provided text field. 6. Click " Create New Facebook App ID " button 7. In next screen choose " Category " of your application. 8. Then click " Create App ID " button. 9. Then on next screen give your site URL. For development purpose use http://localhost:<port number>
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Create a pdf file using java and encrypt / decrypt it.

For this example to work you will need following jar files. 1.  bcpkix-jdk15on-1.47.jar 2.   itextpdf-5.1.0.jar 3.   bcprov-jdk14-146.jar Download them and include them in your project classpath . /* * This class is part of the book "iText in Action - 2nd Edition" * written by Bruno Lowagie (ISBN: 9781935182610) * For more info, go to: http://itextpdf.com/examples/ * This example only works with the AGPL version of iText. */ import java.io.FileOutputStream; import java.io.IOException; import com.itextpdf.text.Document; import com.itextpdf.text.DocumentException; import com.itextpdf.text.Paragraph; import com.itextpdf.text.pdf.PdfWriter; import com.itextpdf.text.pdf.PdfReader; import com.itextpdf.text.pdf.PdfStamper; public class EncryptionPdf { /** User password. */ public static byte[] USER = "Hello".getBytes(); /** Owner password. */ public static byte[] OWNER = "World".getBytes...
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How to refresh JSP page automatically after each time period?

<%@ page import="java.io.*,java.text.*,java.util.*"%> <html> <head> <title>Auto Refresh Header Example</title> </head> <body> <h2>Auto Refresh Header Example</h2> <% // Page will be auto refresh after 1 second response.setIntHeader("Refresh", 1); // Get Current Time DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); Calendar cal = Calendar.getInstance(); out.println(dateFormat.format(cal.getTime())); %> </body> </html>
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