About XMLHttpRequest in AJAX

ssidiq · 06-15-2009, 03:36 PM

Hi All,
I am new to Ajax. Can you help me to fix this issue. I written small web application using JSP and AJAX in Tomcat.

My req was that read folder structure from local directory or folder (For example C:\\SurroundSimulation_SVN_New1\\...) and show .html under that and when user click that .html i need open that by using IE or Iframe.

Flow like:
user click link (inbound) is in index.htm --> then folderlist.jsp will display with link (05 Jan 2009)and user click that link --> then fileslist.jsp will display with link (ABC.html) and user click that line --> final response i need open that .html in Iframe,

problem:
I able to click link is in index.htm and click event call folderlist.jsp throguht AJAX and from folderlist.jsp i try call the fileslist.jsp through AJAX again but i was not happened.

For that I written for files
1.index.html
2.folderlist.jsp
3.fileslist.jsp
4.showRpt.jsp
5. stat_report.js (javascript)

index.html
*******
<html>
<head>
<title>Current Flows</title>
</head>
<script type="text/javascript" src="stat_report.js"></script>
<body>
<p>
<a onclick="ajaxFunction('folderlist.jsp?flowname=UL_ COSMOS_ONSITE&direction=inbound')" href="">Inbound</a></p>
</body>
</html>

folderlist.jsp
*********

<%@ page import="java.io.*,java.util.Date" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Current Flows</title>
</head>
<script type="text/javascript" src="stat_report.js"></script>
<body>
<p>
<a onclick="ajaxFunction('folderlist.jsp?flowname=UL_ COSMOS_ONSITE&direction=inbound')" href="">Inbound</a><BR><BR>
<%
String direction = request.getParameter("direction");
if(direction != null && direction.equals("inbound"))
{
String file = "C:\\SurroundSimulation_SVN_New1\\surrounding-simulation-stat-report\\WEB-INF\\flows\\"+request.getParameter("flowname")+"\\ ";
File f = new File(file);
String [] fileNames = f.list();
File [] fileObjects= f.listFiles();
%>
<UL>
<%
for (int i = 0; i < fileObjects.length; i++)
{
if(fileObjects[i].isDirectory())
{
%>
<LI>
<a onclick="ajaxFunction('fileslist.jsp?flowname=<%=r equest.getParameter("flowname") %>&direction=<%=request.getParameter("direction") %>&foldername=<%= fileNames[i] %>')" href=""><%= fileNames[i] %></a>    
<%
}
}
%>
</LI>
</UL>
<BR>
<%
}
%>
</p>
</body>
</html>

fileslist.jsp
*******
<%@ page import="java.io.*,java.util.Date" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Current Flows</title>
</head>
<script type="text/javascript" src="stat_report.js"></script>
<body>
<p>
<a onclick="ajaxFunction('folderlist.jsp?flowname=UL_ COSMOS_ONSITE&direction=inbound')" href="">Inbound</a><BR><BR>
<%
String direction = request.getParameter("direction");
if(direction != null && direction.equals("inbound"))
{
String file = "C:\\SurroundSimulation_SVN_New1\\surrounding-simulation-stat-report\\WEB-INF\\flows\\"+request.getParameter("flowname")+"\\ ";
File f = new File(file);
String [] fileNames = f.list();
File [] fileObjects= f.listFiles();
%>
<UL>
<%
for (int i = 0; i < fileObjects.length; i++)
{
if(fileObjects[i].isDirectory())
{
%>
<LI>
<a onclick="ajaxFunction('fileslist.jsp?flowname=<%=r equest.getParameter("flowname") %>&direction=<%=request.getParameter("direction") %>&foldername=<%= fileNames[i] %>')" href=""><%= fileNames[i] %></a>    
<%
String flowname1 = request.getParameter("flowname");
String direction1 = request.getParameter("direction");
String foldername1 = request.getParameter("foldername");
if(foldername1.equals(fileObjects[i].getName()))
{
String file1 = "C:\\SurroundSimulation_SVN_New1\\surrounding-simulation-stat-report\\WEB-INF\\flows\\"+flowname1+"\\"+foldername1+"\\"+dire ction1+"\\";
File f1 = new File(file1);
String [] fileNames1 = f1.list();
File [] fileObjects1= f1.listFiles();
%>
<UL>
<%
for (int j = 0; j < fileObjects1.length; j++)
{
if(!fileObjects1[j].isDirectory())
{
%>
<LI>
<a onclick="openValidationRpt('showRpt.jsp?flowname=< %=flowname1 %>&foldername=<%=foldername1%>&direction=<%=direct ion1%>&rptname=<%=fileNames1[j] %>','_new')" href=""><%= fileNames1[j] %></a>    

<%
}
}
%>
</LI>
</UL>
<%
}
}
}
%>
</LI>
</UL>
<BR>
<%
}
%>

</p>
</body>
</html>

stat_report.js
*********

function ajaxFunction(sURL)
{
var xmlhttp;
if(xmlhttp == null){
if (window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest();
}else if (window.ActiveXObject){
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}else{
alert("Your browser does not support XMLHTTP!");
}
}
xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==4)
{
document.write(xmlhttp.responseText);
}
}
xmlhttp.open("GET",sURL,true);
xmlhttp.send(null);
}

Thanks,
ssidiq

06-15-2009, 03:36 PM	#1 (permalink)
ssidiq Junior Member Join Date: Jun 2009 Posts: 1 Rep Power: 0	About XMLHttpRequest in AJAX Hi All, I am new to Ajax. Can you help me to fix this issue. I written small web application using JSP and AJAX in Tomcat. My req was that read folder structure from local directory or folder (For example C:\\SurroundSimulation_SVN_New1\\...) and show .html under that and when user click that .html i need open that by using IE or Iframe. Flow like: user click link (inbound) is in index.htm --> then folderlist.jsp will display with link (05 Jan 2009)and user click that link --> then fileslist.jsp will display with link (ABC.html) and user click that line --> final response i need open that .html in Iframe, problem: I able to click link is in index.htm and click event call folderlist.jsp throguht AJAX and from folderlist.jsp i try call the fileslist.jsp through AJAX again but i was not happened. For that I written for files 1.index.html 2.folderlist.jsp 3.fileslist.jsp 4.showRpt.jsp 5. stat_report.js (javascript) index.html ***** <html> <head> <title>Current Flows</title> </head> <script type="text/javascript" src="stat_report.js"></script> <body> <p> <a onclick="ajaxFunction('folderlist.jsp?flowname=UL_ COSMOS_ONSITE&direction=inbound')" href="">Inbound</a></p> </body> </html> folderlist.jsp ******* <%@ page import="java.io.,java.util.Date" %> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Current Flows</title> </head> <script type="text/javascript" src="stat_report.js"></script> <body> <p> <a onclick="ajaxFunction('folderlist.jsp?flowname=UL_ COSMOS_ONSITE&direction=inbound')" href="">Inbound</a><BR><BR> <% String direction = request.getParameter("direction"); if(direction != null && direction.equals("inbound")) { String file = "C:\\SurroundSimulation_SVN_New1\\surrounding-simulation-stat-report\\WEB-INF\\flows\\"+request.getParameter("flowname")+"\\ "; File f = new File(file); String [] fileNames = f.list(); File [] fileObjects= f.listFiles(); %> <UL> <% for (int i = 0; i < fileObjects.length; i++) { if(fileObjects[i].isDirectory()) { %> <LI> <a onclick="ajaxFunction('fileslist.jsp?flowname=<%=r equest.getParameter("flowname") %>&direction=<%=request.getParameter("direction") %>&foldername=<%= fileNames[i] %>')" href=""><%= fileNames[i] %></a>     <% } } %> </LI> </UL> <BR> <% } %> </p> </body> </html> fileslist.jsp ****** <%@ page import="java.io.,java.util.Date" %> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Current Flows</title> </head> <script type="text/javascript" src="stat_report.js"></script> <body> <p> <a onclick="ajaxFunction('folderlist.jsp?flowname=UL_ COSMOS_ONSITE&direction=inbound')" href="">Inbound</a><BR><BR> <% String direction = request.getParameter("direction"); if(direction != null && direction.equals("inbound")) { String file = "C:\\SurroundSimulation_SVN_New1\\surrounding-simulation-stat-report\\WEB-INF\\flows\\"+request.getParameter("flowname")+"\\ "; File f = new File(file); String [] fileNames = f.list(); File [] fileObjects= f.listFiles(); %> <UL> <% for (int i = 0; i < fileObjects.length; i++) { if(fileObjects[i].isDirectory()) { %> <LI> <a onclick="ajaxFunction('fileslist.jsp?flowname=<%=r equest.getParameter("flowname") %>&direction=<%=request.getParameter("direction") %>&foldername=<%= fileNames[i] %>')" href=""><%= fileNames[i] %></a>     <% String flowname1 = request.getParameter("flowname"); String direction1 = request.getParameter("direction"); String foldername1 = request.getParameter("foldername"); if(foldername1.equals(fileObjects[i].getName())) { String file1 = "C:\\SurroundSimulation_SVN_New1\\surrounding-simulation-stat-report\\WEB-INF\\flows\\"+flowname1+"\\"+foldername1+"\\"+dire ction1+"\\"; File f1 = new File(file1); String [] fileNames1 = f1.list(); File [] fileObjects1= f1.listFiles(); %> <UL> <% for (int j = 0; j < fileObjects1.length; j++) { if(!fileObjects1[j].isDirectory()) { %> <LI> <a onclick="openValidationRpt('showRpt.jsp?flowname=< %=flowname1 %>&foldername=<%=foldername1%>&direction=<%=direct ion1%>&rptname=<%=fileNames1[j] %>','_new')" href=""><%= fileNames1[j] %></a>     <% } } %> </LI> </UL> <% } } } %> </LI> </UL> <BR> <% } %> </p> </body> </html> stat_report.js ******** function ajaxFunction(sURL) { var xmlhttp; if(xmlhttp == null){ if (window.XMLHttpRequest) { xmlhttp=new XMLHttpRequest(); }else if (window.ActiveXObject){ xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); }else{ alert("Your browser does not support XMLHTTP!"); } } xmlhttp.onreadystatechange=function() { if(xmlhttp.readyState==4) { document.write(xmlhttp.responseText); } } xmlhttp.open("GET",sURL,true); xmlhttp.send(null); } Thanks, ssidiq

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