AJAX结合JSON在火狐上可以，但是IE上不行-AJAX教程-爱易网页

AJAX结合JSON在火狐上可以，但是IE上不行

日期：2014-05-16　浏览次数：20625 次

AJAX结合JSON在火狐下可以，但是IE下不行

HTML code

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>MyHtml.html</title>    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="this is my page">
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <script type="text/javascript" src="json2.js"></script>
    <script type="text/javascript">
        var xmlHttp;
        function doJson()
        {
            var cars = new car("奔驰","SLCAR00004500",50000);
            var carAsJson=JSON.stringify(cars);
            alert("Car object as json:\n"+carAsJson);
            
            var url ="JSONExample?timeStamp="+new Date().getTime();
            createXMLHttpRequest();
            xmlHttp.open("POST",url,true);
            xmlHttp.onreadystatechange=handleStateChange;
            xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
            xmlHttp.send(carAsJson);
        }
        
        function car(carname,carno,carprice)
        {
            this.carName=carname;
            this.carNo=carno;
            this.carPrice=carprice;
        }
        
        function createXMLHttpRequest()
        {
            if(window.XMLHttpRequest)
            {
                xmlHttp=new XMLHttpRequest();
            }
            if(window.ActiveXObject)
            {
                xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
            }
        }
        
        function handleStateChange()
        {
            if(xmlHttp.readyState ==4 && xmlHttp.status==200)
            {
                parseResult();
            }
        }
        
        function parseResult()
        {
            var responseDiv = document.getElementById("serverResponse");
            if(responseDiv.hasChildNodes())
            {
                responseDiv.removeChild(responseDiv.childNodes[0]);
            }
            var responseText = document.createTextNode(xmlHttp.responseText);
            responseDiv.appendChild(responseText);
        }
    </script>
  </head>
  
  <body>
    <form action="#">
        <input type="button" name="button" value="show Json" onclick="doJson()" />
    </form> 
    <h2>Server response:</h2>
    <div id="serverResponse"></div>
  </body>
</html>

Java code

package com.suning.study.ajax.servlet;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.json.JSONException;
import org.json.JSONObject;

@SuppressWarnings("serial")
public class AjaXDemo extends HttpServlet {
    
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String json = readJsonStringFromRequest(request);
        JSONObject obj=null;
        String responseText ="";
        try {
            obj=new JSONObject(json);
            responseText="The car is a car[carName:"+obj.getString("carName")+",carNo:"+obj.getString("carNo")
            +",carPrice:"+obj.getDouble("carPrice&qu

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AJAX结合JSON在火狐上可以，但是IE上不行

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