Session Validation in Ajax

Session validation in servlet: Usually if it is a servlet we can simply check if(session != null ){ // Business code }else{ // Redirection code }   Session validation in ajax: If you call the servlet from ajax then the above steps won’t work, since ajax gets everything as response, so the code which you have written in the else

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Passing clicked value from jsp to jsp/servlet

Passing value from jsp to jsp/servlet: We can pass the value from jsp to servlet using, request.getParameter(“text”); //servlet code to get the jsp value where text is the name of the input fields (text field). Passing clicked value from jsp to jsp/servlet: We have to pass the clicked value as get parameter in the href link like below, <a href=”/Myservlet?input=javadomain”>

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Javascript href onclick open new window

Javascript code to open new window: window.open(“http://www.google.co.in”) – opens google.co.in in new window. window.open(“http://www.google.co.in”,”My window”) – My window is the name of the new window. Javascript code to close the current window: window.close() – close the current opened window. It will ask the popup confirmation. Javascript code to close without popup confirmation: window.open(”,’_self’); window.close(); window.open(“http://www.javadomain.in”); // It wont allow to

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