解析文件路径字符串到json对象 [英] Parse string of file path to json object
本文介绍了解析文件路径字符串到json对象的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有如下网址列表.如何将其转换为完整的json对象?
I have the list of URL like below. How to convert it into complete json object?
我的网址数组.
[
"path1/subpath1/file1.doc","path1/subpath1/file2.doc","path1/subpath2/file1.doc","path1/subpath2/file2.doc","path2/subpath1/file1.doc","path2/subpath1/file2.doc","path2/subpath2/file1.doc","path2/subpath2/file2.doc","path2/subpath2/additionalpath1/file1.doc"
]
我希望将此作为json对象，例如:
I want this as json object like:
{
"path1":{
"subpath1":["file1.doc","file2.doc"],
"subpath2":["file1.doc","file2.doc"]
},
"path2":{
"subpath1":["file1.doc","file2.doc"],
"subpath2":["file1.doc","file2.doc"],
"additionalpath1":{
"additionalpath1":["file1.doc"]
}
}
}
该怎么做?
我尝试了以下代码段.但是缺少一些文件夹对象.
I tried it with the below code snippets. But there are few folder objects are missing.
如果尝试使用此代码，则会发现缺少test1和其他objects:
If you try this code you will find that test1 and additional objects are missing:
<html>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<body>
<p id="demo"></p>
<script>
let paths = [ "admin/640954.jpg", "admin/test1/3m-nd.jpg",
"admin/test1/Acct.png", "admin/test1/additional/111.gif", "admin/test1/additional/Aard.jpg",
"dp/151292.jpg", "dp/151269.jpg", "dp/1515991.jpg" ];
function getMap(urls){
var map = {};
urls.forEach(function(url){
var parts = url.split("/");
makePath(map, parts);
})
return map;
}
function makePath(map,parts){
var currentPath = map;
for(var i = 0 ; i < parts.length - 1 ; i++ ){
if(i == parts.length -2 ){
currentPath[parts[i]] = currentPath[parts[i]] || [];
currentPath[parts[i]].push(parts[++i]);
}else{
currentPath[parts[i]] = currentPath[parts[i]] || {};
currentPath = currentPath[parts[i]];
}
}
}
document.getElementById("demo").innerHTML=JSON.stringify(getMap(paths));
</script>
</body>
</html>
推荐答案
您可以使用.split("/")并遍历结果，在嵌套对象中创建属性:
You could use .split("/") and iterate over the results, creating properties in nested objects:
let paths = [
"path1/subpath1/file111.doc",
"path1/subpath1/file112.doc",
"path1/subpath2/file121.doc",
"path1/subpath2/file122.doc",
"path2/subpath1/file211.doc",
"path2/subpath1/file212.doc",
"path2/subpath2/file221.doc",
"path2/subpath2/file222.doc",
"path2/additionalpath3/additionalpath1/file2311.doc"
];
let treePath = {};
paths.forEach(path => {
let levels = path.split("/");
let file = levels.pop();
let prevLevel = treePath;
let prevProp = levels.shift();
levels.forEach(prop => {
prevLevel[prevProp] = prevLevel[prevProp] || {};
prevLevel = prevLevel[prevProp];
prevProp = prop;
});
prevLevel[prevProp] = (prevLevel[prevProp] || []).concat([file]);
});
console.log(treePath);
或者:
let paths = [
"path1/subpath1/file111.doc",
"path1/subpath1/file112.doc",
"path1/subpath2/file121.doc",
"path1/subpath2/file122.doc",
"path2/subpath1/file211.doc",
"path2/subpath1/file212.doc",
"path2/subpath2/file221.doc",
"path2/subpath2/file222.doc",
"path2/additionalpath3/additionalpath1/file2311.doc"
];
let treePath = {};
paths.forEach(path => {
let levels = path.split("/");
let file = levels.pop();
levels.reduce((prev, lvl, i) => {
return prev[lvl] = (levels.length - i - 1) ? prev[lvl] || {} : (prev[lvl] || []).concat([file]);
}, treePath);
});
console.log(treePath);
这篇关于解析文件路径字符串到json对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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