How To Display Error Message In Login Page Using Jsp
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here 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 or posting ads with servlet redirect to same page with error message us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow how to display error message in jsp using servlet Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up how to display error message in jsp using javascript Servlet redirect to same page with error message up vote 11 down vote favorite 11 I have a question about servlet redirection to the same initial page. The following is the scenario: Suppose a user want to buy an item, so he how to display message in jsp page fills in the amount and submits it. The form is submitted to a servlet and the quantity available is checked against the available in the database. So if the amount of items ordered is more than the available the servlet redirects to the same page but with a message like "item is unavailable". So my question is how to implement this case. How to redirect to the same initial page with an error message. I don't want to use ajax here. Here is how
How To Display Alert Message In Servlet
I have thought of it as : 1.)should I set a context attribute if error is generated and then check it again in initial page after re-direction and show the message that has been set. What are the best practices for this kind of events? java jsp servlets redirect scope share|improve this question edited Jun 9 '14 at 17:37 informatik01 9,29763759 asked Jan 31 '13 at 18:04 Vishal Anand 2412819 Put your mouse on top of [servlets] tag which you placed on the question until a black box shows up and then click therein the info link. This issue is covered for long by the first Hello World example. –BalusC Feb 1 '13 at 14:01 add a comment| 1 Answer 1 active oldest votes up vote 31 down vote accepted The most common and recommended scenario (for the server side validation in Java serlvets/JSP world) is setting some error message as a request attribute (in the request scope) and then outputting this message in a JSP using Expression Language (see the example below). When the error message is not set - nothing will be shown. But when storing an error message in a request, you should forward a request to the initial page. Setting a request attribute is not suitable when redirecting, because if you use a redirect it will be a totally NEW request and request attributes are reset between requests. If you want to redirect a request to the referring page (the one from which you submitted
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How To Display Alert Message In Jsp Page
will display error details in the same jsp how to display error message in same jsp page using struts page sumanta panda Ranch Hand Posts: 224 posted 7 years ago how to display error message in jsp page 1 Dear All, I have a jsp page let say login.jsp and a servlet class Login Servlet.java. My doubt is when http://stackoverflow.com/questions/14632252/servlet-redirect-to-same-page-with-error-message request goes to servlet 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 https://coderanch.com/t/414131/Servlets/java/display-error-details-jsp-page page "Invalid User id". Could you please guide me how i will 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: Mes
This Site Careers Other all forums Forum: Servlets To https://coderanch.com/t/477338/Servlets/java/show-Error-message-login-jsp show the Error message at the login.jsp page using servlet Shivoham Pandey Greenhorn Posts: 1 posted 6 years ago Hi folks I am doing a project for which i need to display the error message to the same login.jsp how to page using servlet.Error messages should be of there types: For invalid username:invalid user name For invalid password:Invalid password For Invalid username or password:user details are not found in database I am doing these validation against MS-Access Database. I have written how to display a code which is giving only one type of error: Thats :For Invalid username or password:user details are not found in database. Please help me out.Thanks in Advance package com.Demo.Servlet_EmployeeProject; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.sql.*; public class LoginEmployee extends HttpServlet{ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException{ //response.setContentType("text/html"); // PrintWriter out = response.getWriter(); System.out.println("MySQL Connect Example."); Connection conn = null; String url = "jdbc:odbc:Employee"; String driver = "sun.jdbc.odbc.JdbcOdbcDriver"; String username=request.getParameter("username"); String userpass=request.getParameter("password"); String strQuery= ""; Statement st=null; ResultSet rs=null; HttpSession session = request.getSession(false); try { Class.forName(driver).newInstance(); conn = DriverManager.getConnection(url); System.out.println(userpass); strQuery="select * from Employee"+" where uid="+username+" and password='"+userpass+"'"; System.out.println(strQuery); // PreparedStatement ps = conn.prepareStatement("select * from Employee"+" where uid='"+username+"' and password='"+userpass+"'"); // rs = ps.