Javascript 将嵌套JSON输出到<;ul>;带有子列表项
我有一个JSON,在将其格式化为包含子列表项的列表时遇到了问题。我有一些工作,但可能只是错过了一些简单的,我希望你们能帮助我 我的JSON如下所示:Javascript 将嵌套JSON输出到<;ul>;带有子列表项,javascript,jquery,html,json,Javascript,Jquery,Html,Json,我有一个JSON,在将其格式化为包含子列表项的列表时遇到了问题。我有一些工作,但可能只是错过了一些简单的,我希望你们能帮助我 我的JSON如下所示: var json = { "siteMap": [ { "title": "Red", "link": "red.html", "subPageArray": [ { "subTitle": "SubLink1", "li
var json = {
"siteMap": [
{
"title": "Red",
"link": "red.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Blue",
"link": "blue.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Green",
"link": "green.html"
},
{
"title": "Yellow",
"link": "yellow.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
}
]
}
$.each(json.siteMap, function (i, val) {
var i = 0,
a = i++,
data = "<li class='topLevel'><a href='/" + this.link + "'>" + this.title + "</a><ul><li class='subLevel'><a href='/" + this.subPageArray[i].link + "'>" + this.subPageArray[a].subTitle + "</a></li></ul></li>";
i++;
$(data).appendTo(".siteMapContent ul");
});
<div class="siteMapContent">
<ul></ul>
</div>
<ul>
<li><a href="red.html">Red</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="blue.html">Blue</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="green.html">Green</a></li>
<li><a href="yellow.html">Yellow</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
</ul>
如果一个对象没有“subPageArray”,我希望该项下没有子列表
我的jQuery如下所示:
var json = {
"siteMap": [
{
"title": "Red",
"link": "red.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Blue",
"link": "blue.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Green",
"link": "green.html"
},
{
"title": "Yellow",
"link": "yellow.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
}
]
}
$.each(json.siteMap, function (i, val) {
var i = 0,
a = i++,
data = "<li class='topLevel'><a href='/" + this.link + "'>" + this.title + "</a><ul><li class='subLevel'><a href='/" + this.subPageArray[i].link + "'>" + this.subPageArray[a].subTitle + "</a></li></ul></li>";
i++;
$(data).appendTo(".siteMapContent ul");
});
<div class="siteMapContent">
<ul></ul>
</div>
<ul>
<li><a href="red.html">Red</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="blue.html">Blue</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="green.html">Green</a></li>
<li><a href="yellow.html">Yellow</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
</ul>
$。每个(json.siteMap,函数(i,val){
var i=0,
a=i++,
data=“
”;
i++;
$(数据)。附加到(“.siteMapContent ul”);
});
我的HTML如下所示:
var json = {
"siteMap": [
{
"title": "Red",
"link": "red.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Blue",
"link": "blue.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Green",
"link": "green.html"
},
{
"title": "Yellow",
"link": "yellow.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
}
]
}
$.each(json.siteMap, function (i, val) {
var i = 0,
a = i++,
data = "<li class='topLevel'><a href='/" + this.link + "'>" + this.title + "</a><ul><li class='subLevel'><a href='/" + this.subPageArray[i].link + "'>" + this.subPageArray[a].subTitle + "</a></li></ul></li>";
i++;
$(data).appendTo(".siteMapContent ul");
});
<div class="siteMapContent">
<ul></ul>
</div>
<ul>
<li><a href="red.html">Red</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="blue.html">Blue</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="green.html">Green</a></li>
<li><a href="yellow.html">Yellow</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
</ul>
我希望最终结果是这样的:
var json = {
"siteMap": [
{
"title": "Red",
"link": "red.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Blue",
"link": "blue.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
},
{
"title": "Green",
"link": "green.html"
},
{
"title": "Yellow",
"link": "yellow.html",
"subPageArray": [
{ "subTitle": "SubLink1", "link": "test1.html" },
{ "subTitle": "SubLink2", "link": "test2.html" }
]
}
]
}
$.each(json.siteMap, function (i, val) {
var i = 0,
a = i++,
data = "<li class='topLevel'><a href='/" + this.link + "'>" + this.title + "</a><ul><li class='subLevel'><a href='/" + this.subPageArray[i].link + "'>" + this.subPageArray[a].subTitle + "</a></li></ul></li>";
i++;
$(data).appendTo(".siteMapContent ul");
});
<div class="siteMapContent">
<ul></ul>
</div>
<ul>
<li><a href="red.html">Red</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="blue.html">Blue</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
<li><a href="green.html">Green</a></li>
<li><a href="yellow.html">Yellow</a>
<ul>
<li><a href="test1.html">SubLink1</a></li>
<li><a href="test2.html">SubLink2</a></li>
</ul>
</li>
</ul>
-
-
-
$。每个(json.siteMap,函数(i,val){
var data=“”;
if(this.subPageArray!=undefined){//检查此处是否存在绿色的subPageArray
对于(i=0;i
”;
}
}
数据+=“”;
$(data.appendTo(“.siteMapContent.hii”);
});
还有你的html代码:我给ul添加了一个类名,所以动态生成的代码不会添加到内部ul
<div class="siteMapContent">
<ul class="hii"></ul>
</div>
工作小提琴:这不是最干净的方法,但它确实起作用 当然,您需要迭代子项(如果存在)
var html = "<ul>";
json.siteMap.forEach(function(item) {
html += "<li><a href='"+item.link+"'>"+item.title+"</a>";
if (item.subPageArray) {
html += "<ul>";
item.subPageArray.forEach(function(subitem) {
html += "<li><a href='"+subitem.link+"'>"+subitem.subTitle+"</a></li>";
});
html += "</ul>";
}
html += "</li>";
});
document.body.innerHTML = html + "</ul>";
var html=“”;
json.siteMap.forEach(函数(项){
html+=“- ”;
if(item.subPageArray){
html+=“
”;
item.subPageArray.forEach(函数(子项){
html+=“”;
});
html+=“
”;
}
html+=“ ”;
});
document.body.innerHTML=html+“
”;
你能做一个jsfiddle吗?问题是:@NickJ checkout我的答案它正在工作..你需要注意编写干净的代码,因为你的JS代码片段非常混乱。首先,为什么要使用$。如果要将回调范围内的“i”声明为0,则将其作为索引并忽略它。a=i++也是要避免的。除了“标准”附加之外,尝试使用javascript模板引擎,如Handlebar(或任何其他)这非常有效,但是,有没有一种方法可以在没有“document.body.innerHTML”的情况下使用它。这将删除页面的其余内容。此代码仅取自JSFIDLE,它需要document.body。我所演示的不仅仅是提供您需要的代码。只需使用html+=“”;取而代之的是,使用html变量做你需要的事情。它可以工作,但是代码不是很干净,因为仍然是基于海报的。与我在原始帖子上的评论相同,但这里更混乱的是,get assign i刚刚在上面一行中被覆盖。然后我再次在for循环中声明,a再次在循环中声明,但它从未使用过。谢谢,这太棒了!