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Anand
Retrieve The Data From MySql Datbase
1 Answer(s)      3 years and 9 months ago
Posted in : JSP-Servlet


How to Retrieve The Data From MYSQL database TO Use Select the Emp_id Option.And Also Search Option?


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February 23, 2011 at 12:32 PM


JSP search data from mysql database:

1)selEmployee.jsp:

<%@page import="java.sql.*"%>
<script type="text/javascript">
function showData(value){ 

xmlHttp=GetXmlHttpObject()
var url="empdata.jsp";
url=url+"?id="+value;
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(":");
    document.getElementById("table").style.visibility='visible';
    document.getElementById("name").value= strar[1];
    document.getElementById("address").value= strar[2];
    document.getElementById("contactNo").value= strar[3];
    document.getElementById("email").value= strar[4];
    } 
}
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>
<table border=1>
<tr><td>Employee Id</td><td>Search</td></tr>
<%
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("Select id from employee");
while(rs.next()){
    %>
    <tr><td><%=rs.getInt("id")%></td>
<td><input type="button" value="Search" style="background-color:#49743D;font-weight:bold;color:#ffffff;" onclick="showData(<%=rs.getInt("id")%>);" ></td></tr>
<%
}
    %>
<table id="table" style="visibility:hidden;">
<div id="mydiv"></div>
<tr><td><b>Name:</b></td><td> 
 <input  type="text" name="name" id="name" ></td></tr>
<tr><td ><b>Address:</b></td><td>
<input  type="text" name="address" id="address" ></td></tr>
<tr><td><b>ContactNo:</b></td><td>
<input  type="text" name="contactNo" id="contactNo" ></td></tr>
<tr><td><b>Email:</b></td><td>
<input  type="text" name="email" id="email" ></td></tr>
</table>

2)empdata.jsp:

<%@ page import="java.sql.*" %> 
<%
int id = Integer.parseInt(request.getParameter("id").toString());
System.out.println(id);
String data ="";
try{
           Class.forName("com.mysql.jdbc.Driver");
           Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
           Statement st=con.createStatement();
           ResultSet rs=st.executeQuery("select * from employee where id="+id+"");
while(rs.next())
{
data =":"+rs.getString("name") + ":" + rs.getString("address")+":"+Integer.parseInt(rs.getString("contactNo"))+":"+rs.getString("email");
}
out.println(data);
System.out.println(data);
}
catch (Exception e) {
System.out.println(e);
}
%>


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