Ajax JSON加载程序不能正常工作

Question

所以我为我的博客制作了一个JavaScript AJAX加载程序，它无法正常工作。这是工作之前，但当我试图增加几个月到解析器和json文件它刚刚停止，并不会加载。

这里是JavaScript：

firstTime = 1; 
function ajax_get_json_for_main_page(a){ 

var counter = 0; 
var results = document.getElementById("blogShow"); 

    var hr = new XMLHttpRequest(); 
    hr.open("GET", "articles/main.json", true); 
    hr.setRequestHeader("Content-type", "application/json", true); 
    hr.onreadystatechange = function() { 
     var blog = new Array() 
     var title = ""; 

     if(hr.readyState == 4 && hr.status == 200) { 
      var data = JSON.parse(hr.responseText); 
      for(var obj in data){ 
       for(var entry in data[obj]) 
       { 
        blog[counter] = "<h4>"+entry[obj].title+"</h4><p>"+entry[obj].post+"</p>"+"<hr />"; 
        title += "<a onClick='willImpletmentlater(" + entry[obj] + ")" + "'>" + entry[obj].title + "</a><br /><br />" 
        counter = counter + 1; 
       } 

      } 
      document.getElementById("big3").innerHTML = title; 

      if(firstTime == 1) 
      { 
      results.innerHTML = blog[0] 
      firstTime = 1000; 
      } 


      if(a == 1) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(1, blog);}, 1); 
      } 
      if(a == 2) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(2, blog);}, 1); 
      } 
      if(a == 3) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(3, blog);}, 1); 
      } 
      if(a == 4) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(4, blog);}, 1); 
      } 


     } 
    } 


hr.send(null); 




} 

而且还JSON：

{ 
    "june": { 
     "17": { 
      "title": "Monday 17 of June 2012", 
      "post": "the post taken out to save space." 
     }, 
     "16": { 
      "title": "Sunday 16 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     "15": { 
      "title": "Saturday 15 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     "14": { 
      "title": "Friday 14 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     "13": { 
      "title": "Thursday 13 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     "12": { 
      "title": "Wednesday 12 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     "11": { 
      "title": "Tuesday 11 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     "10": { 
      "title": "Monday 10 of June 2012", 
      "post": " the post taken out to save space." 
     } 
    } 

}  

我试着去的jsfiddle，但我不认为他们加载AJAX？ 无论哪种方式，他们没有给我提示。

编辑： 我现在正在这里工作是建议的主要分析位。

如果（hr.readyState == 4 & & hr.status == 200）{ VAR数据= JSON.parse（hr.responseText）;

  var blog = []; 
      var title = ""; 
      var counter = 0; 

      for (var month in data) { 
       var monthEntries = data[month]; 
       for (var i = 0; i < monthEntries.length; i++) { 
        var entry = monthEntries[i]; 
        blog[counter] = "<h4>" + entry.title + "</h4><p>" + entry.post + "</p>" + "<hr />"; 
        title += "<a onClick='willImpletmentlater(" + entry + ")" + "'>" + entry.title + "</a><br /><br />" 
        counter = counter + 1; 
       } 

      } 

      console.log(blog); 
      console.log(title); 

      document.getElementById("big3").innerHTML = title; 




      if(a == 1) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(1, blog);}, 1); 
      } 
      if(a == 2) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(2, blog);}, 1); 
      } 
      if(a == 3) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(3, blog);}, 1); 
      } 
      if(a == 4) 
      { 
       interval = setInterval(function(){blogShowAnimateInner(4, blog);}, 1); 
      } 


     } 
    } 

编辑：
所有好现在

编辑：
如果我添加七月不工作，只与6月份的工作。那有点奇怪？

Answer 1

啊，我明白你的意思了。你的json响应月份对象不是一个数组，它是一个带有键值对的对象，当你做var key时，对象键没有设定的检索顺序...为了得到预期的顺序，你应该把json响应改为类似这

{ 
    "june": [ 
     { 
      "day": "17", 
      "title": "Monday 17 of June 2012", 
      "post": "the post taken out to save space." 
     }, 
     { 
      "day": "16", 
      "title": "Sunday 16 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     { 
      "day": "15", 
      "title": "Saturday 15 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     { 
      "day":"14", 
      "title": "Friday 14 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     { "day": "13", 
      "title": "Thursday 13 of June 2012", 
      "post": "the post taken out to save space" 
     }, 
     { "day": "12", 
      "title": "Wednesday 12 of June 2012", 
      "post": "the post taken out to save space" 
     } 
    ] 

} 

我已经更新了jsfiddle。

http://jsfiddle.net/ew44p/1/

Answer 2

它可能应该像你的json结构一样。

for(var month in data){ 
     var monthEntries = data[month]; 
        for(var day in monthEntries) 
        var entry = monthEntries[day]; 
        { 
         blog[counter] = "<h4>"+entry[day].title+"</h4><p>"+entry[day].post+"</p>"+"<hr />"; 
         title += "<a onClick='willImpletmentlater(" + entry[day] + ")" + "'>" + entry[day].title + "</a><br /><br />" 
         counter = counter + 1; 
        } 

       }