Hello All,
I m new to DWR and recently wrote a program to get the values dynaically from the Server.
I get error and the page doesn load the values coming from server. Here is the code.
Any help would be greatly appreciated.
JSP Page - index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Srini DWR Page</title>
<script src="/DWRTest2/dwr/engine.js"></script>
<script type='text/javascript' src='/DWRTest2/dwr/interface/Demo.js'></script>
<script src="/DWRTest2/dwr/util.js"></script>
<script type="text/javascript">
function update() {
var name = dwr.util.getValue("demoName");
Demo.sayHello(name, function(data) {
dwr.util.setValue("demoReply", data);
});
}
function cloneSearch() {
var sel = dwr.util.getValue("selectText");
dwr.util.removeAllOptions("selectText");
dwr.util.addOptions("selectText", [ "one", "two", "three" ]);
dwr.util.setValue("selectText", sel);
}
function getModels() {
var make = dwr.util.getValue("makes");
Demo.getModels(make, function(reply) {
dwr.util.addOptions("models", reply);
});
}
</script>
</head>
<body>
<p>
Name:
<input type="text" id="demoName"/>
<input value="Send" type="button" onclick="update()"/>
<br/>
Reply: <span id="demoReply"></span>
<input type="button" value="Search" onclick="cloneSearch()"/>
<select id="selectText"></select>
<select id="makes" onchange="getModels"><option id="Aston">Aston</option><option id="BMW">BMW</option></select>
<select id="models"></select>
</body>
</html>
web.xml -
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>DWRTest2</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>uk.ltd.getahead.dwr.DWRServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
</web-app>
dwr.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC
"-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN"
"http://getahead.org/dwr/dwr20.dtd">
<dwr>
<allow>
<create creator="new" javascript="Demo">
<param name="class" value="com.test.Demo"/>
</create>
</allow>
</dwr>
Demo.java
package com.test;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class Demo {
public String sayHello(String name) {
return "Hello, " + name;
}
public String[] cloneSearch2(){
String[] arry = new String[]{"1one","2Two","3Three"};
return arry;
}
public String[] getModels(String make){
String[] arry = new String[]{"1one","2Two","3Three"};
return arry;
}
}
