Jsp Servlet Display Error
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How To Show Error Message In Jsp
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How To Display Alert Message In Servlet
Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up displaying error message in how to display error message in jsp using javascript login page after login failure up vote 1 down vote favorite 2 here is some part of code from login.jsp login.jsp
Login
<%=request.getAttribute("errorMessage") %>
in the servlet code if the user does't exist i'm using requestdispatcher with error msg servlet if(res.next()) { if ((thisname.equals(res.getString("username"))) && (thispwd.equals(res.getString("password")))) { session.setAttribute("username", request.getParameter("username")); response.sendRedirect("login-success.html"); } else{ session.invalidate(); request.setAttribute("errorMessage", "Invalid user or password"); RequestDispatcher rd = request.getRequestDispatcher("/login.jsp"); rd.forward(request, response); } but thing is<%=request.getAttribute("errorMessage") %>
runs whenever login jsp is opened which returns null on the page when there is no failure.only when the failure occurs it disphere for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers how to display message in jsp page or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x how to send message from servlet to jsp Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it how to send alert message from servlet to jsp only takes a minute: Sign up How to send error message from servlet to jsp page? up vote 1 down vote favorite My jsp page consists of a form that takes in an email address. I then use java http://stackoverflow.com/questions/21903765/displaying-error-message-in-login-page-after-login-failure to check if my postgresql database already contains that email address. Right now my servlet just redirects the user back to the Registration page if the email address already exists. What I am trying to do is write an error message on the form "The email address you entered already exists" with java. I haven't figured out how to do it. Is there some way I could do this with jQuery form validation? I am using that right now for http://stackoverflow.com/questions/31757418/how-to-send-error-message-from-servlet-to-jsp-page required fields. java postgresql servlets error-handling jquery-form-validator share|improve this question edited Aug 1 '15 at 5:38 John 1,83211540 asked Aug 1 '15 at 1:47 Dylan 8210 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted Here you need to pass information from servlet to JSP. To Pass parameter from servlet to JSP or vice versa. Use Session to pass value from one page to another (here). In Servlet request.getSession().setAttribute("email", "exist/notexist"); In JSP Make a blank div just beside the email textbox and set its content based on the value of String s1 which is set from session.getAttribute("key") method. <%! String s1 = ""; %> <% s1 = (String) session.getAttribute("email");%> <% if(s1.equals("exist")){ %>
Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all https://coderanch.com/t/414131/Servlets/java/display-error-details-jsp-page forums Forum: Servlets How i will display error details in https://coderanch.com/t/434529/Servlets/java/error-message-servlet-jsp the same jsp page sumanta panda Ranch Hand Posts: 224 posted 7 years ago 1 Dear All, I have a jsp page let say login.jsp and a servlet class Login Servlet.java. My doubt is when request goes to servlet how to and servlet class do all database validation.if let say login id is invalid how can i display same message in jsp.Example once submitting of userid and password if user is wrong then it will in same jsp page "Invalid User id". Could you please guide me how i will how to display write the code in servlet as well as jsp page. My servlet class is try { requesttype=request.getParameter("rPass"); userid=request.getParameter("txtUserId"); dateofbirth=request.getParameter("DateofBirth"); emailid=request.getParameter("txtMail"); bankaccno=request.getParameter("txtBankAcc"); HashMap values = new HashMap(); String procString="PR_ITS_CUSTOMER_AUTH (?,?,?,?)"; values.put("1",userid); values.put("2",dateofbirth); values.put("3","Types.VARCHAR"); values.put("4","Types.VARCHAR"); //EnquiryLog.l(strUserId+"|"+strTerminal+" NewPasswordServlet :: Values="+values); System.out.println(userid+"|"+dateofbirth+"NewPasswordServlet :: Values="+values); HashMap out = new HashMap(); validLogindata = false; strRespLogin ="You have entered wrong existing login password."; //if(ConnectionPool.interactiveConnectionPool!=null) dbCon = new OracleDbConnector(ConnectionPool.interactiveConnectionPool); if(dbCon!=null) { //dbCon = new OracleDbConnector(ConnectionPool.interactiveConnectionPool); out = dbCon.CallStatementForProc(procString,values); System.out.println("procString---->"+procString); System.out.println("dbCon...->"+dbCon); System.out.println("out---->"+out); if(out!=null) { //queryStr = (String) out.get("3"); errorType = out.get("3").toString(); errorDesc = out.get("4").toString(); System.out.println("errorType...->"+errorType); System.out.println("errorDesc...->"+errorDesc); //newpasswordVector = (Vector)out.get("4"); } //EnquiryLog.l(strUserId+"|"+strTerminal+" NewPasswordServlet: :mrgreen: B call with queryStr="+queryStr+" Result:"+newpasswordVector); } [BPSouther: Added code tags] [ December 08, 2008: Message edited by: Ben Souther ] sudipto shekhar Ranch Hand Posts: 826 I like... posted 7 years ago I think including a jsp page at the desired position using the
Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all forums Forum: Servlets error message from servlet to jsp lokesh jain Ranch Hand Posts: 58 posted 7 years ago Hi, I am a newbie in servlets. I have made a jsp and a servlet. My design.JSP takes the inputs to connect to DB and then control goes to servlet and it is validated. If it is correct it goes to next page otherwise it will remain at the same jsp page. however I want to display the SQL Error message on the design.jsp at a particular place...can anyone help with the code? Thanks in advance meehul Chopra Greenhorn Posts: 10 posted 7 years ago lokesh jain wrote:Hi, I am a newbie in servlets. I have made a jsp and a servlet. My design.JSP takes the inputs to connect to DB and then control goes to servlet and it is validated. If it is correct it goes to next page otherwise it will remain at the same jsp page. however I want to display the SQL Error message on the design.jsp at a particular place...can anyone help with the code? Thanks in advance Hi lokesh, Whenever in your servlet the user is not a valid user,,at that time use request.setAttribute("error","Invlaid user") //suppose after this you will dispatch your request to design.jsp using RequestDispatcher in which you will call String errorMsg=(String)request.getAttribute("error") and print the errorMsg. I would suggest that you read through, setting and getting Attributes in different scopes. Vijitha Kumara Bartender Posts: 3918 10 I like... posted 7 years ago lokesh jain wrote:however I want to display the SQL Error message on the design.jsp at a particular place...can anyone help with the code? That's not a good way. You shouldn't show SQL Errors to the user, instead have your custom (meaningful) message to the user. SCJP 5 | SCWCD 5 [How to ask questions] [Twitter] lokesh jain Ranch Hand Posts: 58 posted 7 years ago hi meehul. this is my code...please let me know how to apply dis