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/ 10 Years ago, sat, december 27, 2014, 12:00:00
I just started learning Backbone JS. In below code, iam just trying to call url todos/1 expecting to get json data. Instead iam getting error in console as Failed to load resource: net::ERR_TOO_MANY_REDIRECTS I didnt understood why index.jsp keep redirecting many times itself.
Could anyone please explain me what went wrong and also solution too
test.jsp
<html>
<head>
<script
src=http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js></script>
<script
src=http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.7.0/underscore-min.js></script>
<script
src=http://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js></script>
<script type=text/javascript>
var myname;
var myjson;
//WAY ONE
$.getJSON(todos/1, alertUser);
function alertUser(data) {
console.log(data.id);
id = data.id;
alert(id);
var TodoItem = Backbone.Model.extend({});
var todoItem = new TodoItem(data);
var TodoView = Backbone.View.extend({
render: function(){
var html = '<h3>' + this.model.get('description') + '</h3>';
$(this.el).html(html);
}});
var todoView = new TodoView({model : todoItem});
todoView.render();
console.log(todoView.el);
}
</script>
</head>
<body>
</body>
</html>
index.jsp
<%@ page language=java contentType=text/html; charset=UTF-8
pageEncoding=UTF-8%>
<%@page import=org.json.JSONObject %>
<%
JSONObject obj = new JSONObject();
obj.put(description, pick up milk);
obj.put(status, incomplete);
obj.put(id, 1);
response.setContentType(application/json);
out.print(obj);
%>
MyServlet.java
public class MyServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* Default constructor.
*/
public MyServlet() {
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.sendRedirect(index.jsp);
}
}
web.xml
<?xml version=1.0 encoding=UTF-8?>
<web-app xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd>
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>MyServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>MyServlet</servlet-name>
<url-pattern>/todos/*</url-pattern>
</servlet-mapping>
</web-app>
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