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Text Box Validation in JSP

Greenhorn

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posted 11 years ago

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HI,

I have scenarion below
username txtfield
password txtfield

submit button

if username is not entered
error msg should be displayed in front of text field
username txtfield *please enter username

i want to do this in jsp and not in struts or any framework
anyone have idea regarding this.any custom tags or code you already have

Kumaravadivel Subramani

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posted 11 years ago

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As a simple way just have hidden <td> which contains error message and make it display when the script finds user name field is empty when to submit the form.

No pain, No gain.
OCJP 1.6, Liferay Certified Developer 6.1

Niraj Jamun

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posted 11 years ago

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Kumaravadivel Subramani wrote:As a simple way just have hidden <td> which contains error message and make it display when the script finds user name field is empty when to submit the form.

Hi,
thanks for the reply
i just gave eg of username n password jsp
in my jsp i have many field for each field new TD is not a good solution
it will increase the logic in my code also
Do you know any custom tag which will solve my prblm?

William Flores

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posted 11 years ago

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Hi,

Use jQuery to do this.
Have you ever tried it?

Niraj Jamun

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posted 11 years ago

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William Flores wrote:Hi,

Use jQuery to do this.
Have you ever tried it?

Hi,
No, I haven't used jquery
if possible can you give me code for eg username textfield
how to display error in jsp in front of username textfield.

Pondurai Singh

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Posts: 35

posted 11 years ago

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simple jsp coding

Software Developer, Oracle Java Certification Training Labs at EPractize Labs.

Niraj Jamun

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posted 11 years ago

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Pondurai Singh wrote:simple jsp coding
<%@ taglib uri="/customtable1" prefix="customtable" %> <% int flag = 0; %> <center> <form name="form1" method="post" bgcolor =cccccc > <body bgcolor =cccccc > <h3>Users Details</h3> <br><br><br> <table border = 2> <tr> <customtable:customtd name="UserId" value="" /> </tr> <tr> <customtable:customtd name="UserName" value="" /> </tr> <tr> <td></td> <td> <input type = submit value = Submit> </td> </tr> </table> <% if((request.getParameter("UserId") == null) || (request.getParameter("UserName") == null)) { flag = 0; } else if((request.getParameter("UserId").equals("")) || (request.getParameter("UserName").equals(""))) { flag=0; } else { flag = 1; } if(flag == 1) { %> <jsp:forward page="DemoServlet" /> <% } %> </body> </form> </center>

Hi Pondurai,

Can you please attache the /customtable1 tld which you have referred in jsp?
customtable1.tld and the respective java file

Thanks

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