Hi friend,

Please remember some points for solving :

1.Open the url in the browser having the example of handling the error in struts 2.
http://www.roseindia.net/struts/struts2/struts2uitags/actionerror-and-actionmessage-tag.shtml

Embed the logic in this lines of code :

blic String execute() throws Exception{
if ((getUsername().equals("Roseindia")) &&
(getPassword().equals("Roseindia"))){

addActionMessage("Valid User!");
return SUCCESS;
}


import java.util.regex.*;




String string = getUsername();
Pattern pattern = Pattern.compile("\\s\\s+");
Matcher matcher = pattern.matcher(string.trim());
boolean check = matcher.find();

if(check)
{
addActionMessage("Valid User!");
return SUCCESS;
}

For more information on Struts 2 visit to :

http://www.roseindia.net/struts/struts2/struts2uitags/actionerror-and-actionmessage-tag.shtml

Thanks