How to get value from frame1 to frame2 with "input type = submit"

Kusanagi · March 24th, 2017, 02:20 AM

Hello everybody!

I just start learning servlet with eclipse and I have stuck on frameset.

I have 3 frames :

===Frame.jsp===

Code:

<%@ page language="java" contentType="text/html; charset=windows-31j"
    pageEncoding="windows-31j"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
		<%@ page import="java.util.ArrayList" %>
		<%@ page import="java.io.PrintWriter" %>
		<%@ page import="javax.servlet.http.HttpServletRequest" %>
		<%@ page import="javax.servlet.http.HttpServletResponse" %>
		<%@ page import="javax.servlet.http.HttpServlet" %>
		<%@ page import="java.util.*" %>
		<%@ page import="javax.servlet.*" %>
		<%@ page import="javax.servlet.http.*" %>
		<%@ page import="java.io.*" %>
		<%@ page import="javax.servlet.http.HttpSession" %>
		<%@ page import="StudyC.HTMLFilter"%>
</head>

<frameset rows="25%,75%">
<frame src="HelloINPUT.jsp" NAME = "HelloINPUT"  noresize ="noresize">
<frame src="HelloOUTPUT.jsp" NAME = "HelloOUTPUT" >
</frameset>

<noframes>
<body>
EMPTY!
</body>
</noframes>

</html>

===HelloINPUT.jsp===

Code:

<%@ page language="java" contentType="text/html; charset=windows-31j"
    pageEncoding="windows-31j"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
		<%@ page import="java.util.ArrayList" %>
		<%@ page import="java.io.PrintWriter" %>
		<%@ page import="javax.servlet.http.HttpServletRequest" %>
		<%@ page import="javax.servlet.http.HttpServletResponse" %>
		<%@ page import="javax.servlet.http.HttpServlet" %>
		<%@ page import="java.util.*" %>
		<%@ page import="javax.servlet.*" %>
		<%@ page import="javax.servlet.http.*" %>
		<%@ page import="java.io.*" %>
		<%@ page import="javax.servlet.http.HttpSession" %>
		<%@ page import="StudyC.HTMLFilter"%>
</head>
<body>
<center><b>INPUT</b></center>

<script language="JavaScript" type="text/javascript">

function validateForm() {
			var x = document.forms['myForm']['uname'].value;
			if (x == '') {
				alert('空です');
				return false;
			}
}

function SetSelectedValue()
{
    var selectedValue = validateForm();
    window.parent.HelloOUTPUT.frmSubmit.txtTest.value = selectedValue;
}

</script>
</head>

<body>
<form name='myForm'

onsubmit='SetSelectedValue()' target = "HelloOUTPUT" method='post'>
<input type='text' name='uname'>
<input type='submit' value='Click!'>

</form>

<%

String uname = request.getParameter("uname");
if (uname == null) {
	uname = "";
}

@SuppressWarnings("unchecked")
ArrayList<String> dataList = (ArrayList<String>)session.getAttribute("PreviousItems");
	if( dataList == null ) {
			dataList = new ArrayList<String>();
			session.setAttribute("PreviousItems", dataList);
}
dataList.add(uname);

if(dataList.isEmpty()) {
	out.print("<br>");
} else{
	dataList.removeAll(Arrays.asList("null",""));
    	if(dataList.isEmpty()) {
			out.print("<br>");

    	} else{
			int i = 0;
    		do{
			out.print(HTMLFilter.filter(dataList.get(i)) + "<br>");
    			i++;
    		}
    		while(i<dataList.size());
    	}
}

%>

</body>
</html>

===C18_HelloOUTPUT.jsp===

Code:

<%@ page language="java" contentType="text/html; charset=Windows-31j"
	pageEncoding="Windows-31j"%>

<html>
	<head>

		<%@ page import="java.util.ArrayList" %>
		<%@ page import="java.io.PrintWriter" %>
		<%@ page import="javax.servlet.http.HttpServletRequest" %>
		<%@ page import="javax.servlet.http.HttpServletResponse" %>
		<%@ page import="javax.servlet.http.HttpServlet" %>
		<%@ page import="java.util.*" %>
		<%@ page import="javax.servlet.*" %>
		<%@ page import="javax.servlet.http.*" %>
		<%@ page import="java.io.*" %>
		<%@ page import="javax.servlet.http.HttpSession" %>
		<%@ page import="StudyC.HTMLFilter"%>
		<%
		out.println("<center><b>OUTPUT</b></center>");
		%>

	</head>
		<body>

		</body>
</html>

Is there any other ways to get value from other frame with input type = submit?
Or should I change the input type?

Thank you!