我刚开始学习Backbone JS。在下面的代码中，我只是试图调用urltodos/1，希望获得json数据。相反，我在控制台中得到错误“加载资源失败：net：：ERR_TOO_MANY_REDIRECTS”我不明白为什么index.jsp自己会重定向很多次。
谁能告诉我哪里出了问题，还有解决方案
测试.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>索引.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);
%>我的小服务程序.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");
}
}网页.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>
1条答案
按热度按时间tzdcorbm1#
我找到了一个解决我的上述问题的方法。希望它可能有人帮助。
在MyServlet.java中我需要更改下面的
至