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Thread: Need to Login to next page if give Alert for Wrong Password

  1. #1
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    Default Need to Login to next page if give Alert for Wrong Password

    I am very new to java, Here i want to know how to show login error if i type a wrong password that was not saved in my mysql database?

    System.out.println("Select count from users where pword='"+spword+"' and uname='"+suname+"');
    rsT = stmt.executeQuery("select count from users where pword='" + spword + "' and uname='"+suname+"'");
    if(rsT.next())
    {

    integer result = rsT.getint(1>);
    result= <jsp:forward page="Menu.jsp" />;
    }
    else
    {
    integer result = rsT.getint(0);
    result ="<center><h2>Invalid password</h2></center>";
    errFlag = true;
    }
    rsT.close();
    Last edited by maddyrafi; August 9th, 2022 at 11:59 PM.

  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Need to display Alert for Wrong Password

    Where in the code do you want to display the error message?
    Would one of the methods of the JOptionPane class work?

    What is the %> notation for? It does not look like java source code.

    Please edit your post and wrap your code with code tags:

    [code]
    **YOUR CODE GOES HERE**
    [/code]

    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Need to display Alert for Wrong Password

    Sir, I need to display the error alert message that if i entered wrong userid and password that not saved already in mysql earlier

  4. #4
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    Default Re: Need to display Alert for Wrong Password

    Would one of the methods of the JOptionPane class work?

    What is the <h2> notation for? It does not look like java source code. It looks like html.

    Please edit your post and wrap your code with code tags:

    [code]
    **YOUR CODE GOES HERE**
    [/code]

    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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    Super Moderator Norm's Avatar
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    Default Re: Need to display Alert for Wrong Password

    Also posted here: https://coderanch.com/t/753459/java/...ror-type-wrong


    Looks like JSP - moved to JSP section.
    If you don't understand my answer, don't ignore it, ask a question.

  6. #6
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    Default Re: Need to Login to next page if give Alert for Wrong Password

    I want to display if the code is correct. what wrong on my code

    rsT = stmt.executeQuery("select count from users where pword='" + spword + "' and uname='"+suname+"'");
    rsT.next();

    if(rsT.next())
    {

    int result= (rsT.getint(1) == 0);
    result = <jsp:forward page="Menu.jsp" />;
    errFlag = false;

    }
    else
    {
    result ="<center><h2>Invalid password</h2></center>";
    errFlag = true;
    }

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