Javascript Ajax JSON加载程序不工作
所以我为我的博客制作了一个JavaScript-AJAX加载程序,但它不起作用。它以前是可以工作的,但当我试图在解析器和json文件中添加几个月时,它停止了,无法加载 下面是JavaScript:Javascript Ajax JSON加载程序不工作,javascript,ajax,json,Javascript,Ajax,Json,所以我为我的博客制作了一个JavaScript-AJAX加载程序,但它不起作用。它以前是可以工作的,但当我试图在解析器和json文件中添加几个月时,它停止了,无法加载 下面是JavaScript: firstTime = 1; function ajax_get_json_for_main_page(a){ var counter = 0; var results = document.getElementById("blogShow"); var hr = new XMLHttpR
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);
}
我尝试使用JSFIDLE,但我认为他们没有加载ajax?
不管怎样,他们都没有给我任何暗示
编辑:
我知道它现在工作了,这里是建议的主要解析位
如果(hr.readyState==4&&hr.status==200){
var data=JSON.parse(hr.responseText)
var blog=[];
var title=“”;
var计数器=0;
for(数据中的var月){
var monthEntries=数据[月份];
对于(var i=0;i“+”
”;
title+=“entry.title+”
计数器=计数器+1;
}
}
日志(blog);
控制台日志(标题);
document.getElementById(“big3”).innerHTML=title;
如果(a==1)
{
interval=setInterval(函数(){blogShowAnimateInner(1,blog);},1);
}
如果(a==2)
{
interval=setInterval(函数(){blogShowAnimateInner(2,blog);},1);
}
如果(a==3)
{
interval=setInterval(函数(){blogShowAnimateInner(3,blog);},1);
}
如果(a==4)
{
interval=setInterval(函数(){blogShowAnimateInner(4,blog);},1);
}
}
}
编辑:现在一切都好了
编辑:
如果我加上七月不起作用,它只对六月起作用。这有点奇怪?
根据您的json结构,可能应该是这样
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;
}
}
for(数据中的var月){
var monthEntries=数据[月份];
用于(每月的var日)
var分录=月[日];
{
博客[计数器]=“+条目[天]。标题+”“+条目[天]。帖子+”“+”
”;
title+=“”+条目[日期]。title+“
”
计数器=计数器+1;
}
}
啊,我明白你的意思了。您的json响应月份对象不是数组,而是一个具有键值对的对象,当您执行var key时,对象键没有设置的检索顺序……要获得预期的顺序,您应该将json响应更改为如下内容
{
"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JSFIDLE
chrome说它无法读取标题“undefined”的属性,这意味着你的解决方案对我来说是有意义的,它没有到达正确的区域?for(var monthEntries in data){var monthEntries=data[monthEntries];for(var day in monthEntries)var entry=new Array()entry[day]=monthEntries[day];alert(day){blog[counter]=“entry[day]。title+“”+entry[day]。post+“”+“
;“title+=”+entry[day]。title+“
”counter=counter+1;}我把它改成上面的,它想出了第一个,但不是以后的。是的。我在那里搞砸了一点。entry[day]这是一个jsfiddle.o,它解决了一切都是反向运行的问题。谢谢!谢谢你的帮助,总体来说,我排除了你的新答案,但是,嗯……我想知道你是否能理解为什么我在json中再添加一个月,比如7月,它就不工作了?它应该会导致(数据中的var月)你应该每个月循环一次吗?
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;
}
}
{
"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"
}
]
}