Radio Button Problem in jsp.

I have a small doubt in my application, my requirement is to get a "single selectible row", I generated a radio button for each row as i got data from the database using iterator tag,but when i select any row the it is going to bind the last iterated value, please can anyone clear my doubt.and disabled all previous values.

myjsp is like that

<%@ taglib prefix="display" uri="http://displaytag.sf.net/el"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"%>
<%@page import="java.util.*"%>
<%@page import="java.util.Iterator"%>
<%@page import="inc.eis.info.api.TestQuestion"%>


<h3 align="center">List of Questions</h3>
<table width="530" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td><table width="530" border="0" align="center" cellpadding="0" cellspacing="0" >
<tr>
<td  align="left" valign="top" style="padding:6px;" class="borderred">
<table border="0" align="left" cellpadding="0" cellspacing="0" width="95%">
<s:form theme="simple" name="startTestForm" >


<!-- <hr width="100%" bordercolor="red"> -->
<table>
<%! HashMap s=null; %>
<%
List qs=(List)request.getAttribute("list");
Iterator questions= qs.iterator();
for(int i=1;i<2;i++){
TestQuestion tqDet=(TestQuestion)qs.get(i);
s=new HashMap();
s.put(i,tqDet);
%>
<tr>
<td colspan="2" align="left"><b class="textboldblack"><%out.println(i);%><%out.println(tqDet.getQuestions());%></b></td></tr>
<tr><td width="22%"align="left"><b class="textboldblack"><input type="radio" name="test" id="A" ><%out.println(tqDet.getAns_a());%></b></td></tr>
<tr><td width="22%"align="left"><b class="textboldblack"><input type="radio" name="test" id="B"><%out.println(tqDet.getAns_b());%></b></td></tr>
<tr><td width="22%"align="left"><b class="textboldblack"><input type="radio" name="test" id="C"><%out.println(tqDet.getAns_c());%></b></td></tr>
<tr><td width="22%"align="left"><b class="textboldblack"><input type="radio" name="test" id="D"><%out.println(tqDet.getAns_d());%></b></td></tr>
<%
}
%>
<tr><td colspan="2" align="center"><input type="submit" value="Next" onclick="callAction()"></td>
</tr>
</table>
</s:form>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>

<%-- <s:hidden name="" id="radioButtons[x].id" value="seloption"></s:hidden> --%>
<script language="javascript">
 function callAction(){
     alert("hi ");
     var radioButtons = document.getElementsByName("test");
     for (var x = 0; x < radioButtons.length; x ++) {
       if (radioButtons[x].checked) {
           var option=radioButtons[x].id;
           // var seloption=document.getElementById("radioButtons[x].id").value;
         alert("your selected answer is:: " +option);
         document.startTestForm.action="radioSave.action?option="+option;
         document.startTestForm.submit();  

          //alert("You checked " + radioButtons[x].id + " which has the value " + radioButtons[x].value);
       }
     }
   }

</script>

View Answers

October 19, 2011 at 4:31 PM

We are providing you a simple application.

Create table test(ques,op1,op2,op3,op4,ans) and answers(id,ans). Then try the following code:

1)form.jsp:

<%@page import="java.sql.*"%>
<html>
<form method="post" action="result.jsp">
<table>
<%
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/register","root";, "root");
Statement st=connection.createStatement();
ResultSet rs=st.executeQuery("Select * from test");
int i=1;
while(rs.next()){
%>
<tr><td><%=i%></td><td><%=rs.getString("ques")%></td><td><input type="radio" value="<%=rs.getString("op1")%>" name="radio<%=i%>"/><%=rs.getString("op1")%></td><td><input type="radio" value="<%=rs.getString("op2")%>" name="radio<%=i%>"/><%=rs.getString("op2")%></td><td><input type="radio" value="<%=rs.getString("op3")%>" name="radio<%=i%>"/><%=rs.getString("op3")%></td><td><input type="radio" value="<%=rs.getString("op4")%>" name="radio<%=i%>"/><%=rs.getString("op4")%></td></tr>

<%
i++;
}
%>
<tr><td><input type="submit" value="submit"></td></tr>
</table>
</form>
</html>

2)result.jsp:

<%@page import="java.sql.*"%>

<%
String st[]=new String[10];
for(int i=0;i<st.length;i++){
int j=i+1;
st[i]=request.getParameter("radio"+j);
System.out.println(st[i]);

}
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/register","root";, "root");
Statement stmt=connection.createStatement();
ResultSet rs=stmt.executeQuery("Select ans from answers");
String ans="";
while(rs.next()){
ans+=rs.getString("ans")+" ";
}
int count=0;
String answers[]=ans.split(" ");
for(int i=0;i<answers.length;i++){
if(st[i].equals(answers[i])){
count++;
}
}
out.println("Your "+count+" answers are correct");
%>

October 19, 2011 at 5:26 PM

thanks deepak . i got the soution.

October 19, 2011 at 6:17 PM

Hi deepak,

how to get the multiple selected radio button values from jsp to action using javascript.

Radio Button Problem in jsp.

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