Regular expression for decimal numbers

[craig1980]

Hi

I need to have an iput text where user can insert only decimal numbers.

I'm usign thei environment:

• Spring 2.5.6
• Spring webflow and Spring js 1.5.7

I created this code in my jsp page:

<form:input path="gisExt.coordinataX" id="gisExt.coordinataX"/>
<script type="text/javascript">
/*<![CDATA[*/
	Spring.addDecoration(new Spring.ElementDecoration({
	elementId : "gisExt.coordinataX",
	widgetType : "dijit.form.ValidationTextBox",
	widgetAttrs : { required : false,
	regExp : "^[0-9]+(|.\d*[0-9])+$", invalidMessage : "<spring:message code="invalidDecimalNumber" />" }}));
	 /*]]>*/
</script>
<form:errors path="gisExt.coordinataX" cssClass="errore"></form:errors>

I tried this simple java code:

String pattern = "^[0-9]+(|.\\d*[0-9])+$";
Pattern patt = Pattern.compile(pattern);
String[] valori = new String[]{"1234567.89056789","1234567.8","11223344.89","1234.8989", "1.89056789"};
for (String valore : valori) {
	
	Matcher mat = patt.matcher(valore);
	System.out.println("Checking: "+valore+"  mat.matches()--> "+mat.matches());
}

This is my test output:

Checking: 1234567.89056789 mat.matches()--> true
Checking: 1234567.8 mat.matches()--> true
Checking: 11223344.89 mat.matches()--> true
Checking: 1234.8989 mat.matches()--> true
Checking: 1.89056789 mat.matches()--> true

If i try the same numbers in my browser for all the values except the first one i got the error that the regexpr is not verified.

Do u have any ideas? How can i solve it?

Regards,
Angelo.