Retrieve String in textarea

[banhbaochay]

Hi everybody,
I have a bit trouble with textarea in JSP. Can you help me to solve it?

I want to match a word in String retrieve from tag Textarea of page1.jsp

<form name="form1" method="POST" action="page2.jsp">
<textarea name="textarea1" cols=20 rows=3></textarea>
<input type="submit" value="Click">
</form>

So I have this code in page2.jsp:

<%
String str = request.getParameter("textarea1");
boolean result = str.matches("anh.*");
out.println(result);
%>

I put String "anh dung" in page1.jsp and click button "Click", then page2 display: "true". No problem in this case, but in textarea page1, if I put more than 1 line (ex. line1: anh dung, line2: thanh nam...), page2'll display "false". I don't understand it?

I try to do something below:
In page2.jsp, I remove the newline character of String which retrieve from page1, then match it. Page2.jsp change to:

StringBuffer strBuffer = new String(request.getParameter("textarea1");
String str;
boolean result;
int loc = strBuffer.indexOf("\n");
while (loc >= 0) {
strBuffer.replace(loc, loc + 1, ",");
loc = strBuffer.indexOf("\n");
}
str = new String(strBuffer);
result = str.matches("anh.*");
out.println(result);

But the result's still false.
Thanks for reading, sorry for my bad English :)

[banhbaochay]

Anybody can help me :(.
Now I'm trying process with javascript sending, but I still want process it in JSP

[banhbaochay]

I can solve this problem by using Pattern and Matcher class (not use matches method of String class) and it's perfect. But I don't understand that why?