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JavaBegineers
I am selecting 'name' from database using combo-box. now how can i retrieve corresponding 'id' of name in text-box in jsp and servlet i am using mvc framework plz help....
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April 25, 2012 at 12:43 PM
1)ajax.jsp:
<%@page import="java.sql.*"%>
<html>
<head>
<script type="text/javascript">
function showData(){
xmlHttp=GetXmlHttpObject()
var id=document.getElementById("id").value;
var url="getdata.jsp";
url=url+"?id="+id;
xmlHttp.onreadystatechange=stateChanged
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function stateChanged(){
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
var showdata = xmlHttp.responseText;
var strar = showdata.split(":");
if(strar.length>1)
{
var strname = strar[1];
document.getElementById("name").value= strar[1];
document.getElementById("address").value= strar[2];
}
}
}
function GetXmlHttpObject(){
var xmlHttp=null;
try{
xmlHttp=new XMLHttpRequest();
}
catch(e){
try{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e){
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
}
return xmlHttp;
}
</script>
</head>
<body>
<form >
<br><br>
<table >
<tr><td>Client ID:</td><td><input type="text" id="id" name="id" onkeyup="showData();"></td></tr>
<tr><td>Name:</td><td><input type="text" id="name" name="name"></td></tr>
<tr><td>Address:</td><td><input type="text" id="address" name="address"></td></tr>
</table>
</body>
2)getdata.jsp:
<%@ page import="java.sql.*" %>
<%
int id = Integer.parseInt(request.getParameter("id"));
String data=" ";
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("Select * from addclients where clientid ="+id+"");
while(rs.next())
{
data = ":" + rs.getString("name") + ": " + rs.getString("address");
}
out.println(data);
}
catch(Exception e){
System.out.println(e);
}
%>