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我有一个将数据保存在树结构中的数组，但我想将这些数据转换为 json。这是我的数据示例：

[Object]
   0: Object
      children: Array[1]
          0: Object
             children: Array[1]
                0: Object
                   children: Array[10]
                      0: Object
                         children: Array[6]
                         value: Object
                      1: Object
                      2: Object
                      3: Object
                      4: Object
                      5: Object
                      6: Object
                      7: Object
                      8: Object
                      9: Object
                      value: Object
                         Id: "00145E5BB2641EE284F811A7907757A3"
                         Parent: "00145E5BB2641EE284F811A7907737A3"
                         Ref: undefined
                         Text: "Functional Areas"
                         Type: "TWB"

现在我想将这些数据数组转换为 Json。我试过 JSON.stringify(myArray); 但格式不正确。它破坏了树的所有结构。有任何想法吗？

这是给出上述结果的代码。

function transformToStruct(xmlData, callback) {
    var data = xmlData.item;        
    var roots=[];
    var children = {};
    var arry=createStructure(data); 

  // find the top level nodes and hash the children based on parent
  for (var i = 0, len = arry.length; i < len; ++i) {
      var item = arry[i],
          p = item.Parent,
          target = [];

        if(p == rootId) {
            target = roots;
        } 
        else {              
            target = (children[p] || (children[p] = []));           
        }

        target.push({ value: item });
  }
  // function to recursively build the tree
  var findChildren = function(parent) {
      if (children[parent.value.Id]) {
          parent.children = children[parent.value.Id];
          for (var i = 0, len = parent.children.length; i < len; ++i) {
              findChildren(parent.children[i]);
          }
      }
  };

  // enumerate through to handle the case where there are multiple roots
  for (var i = 0, len = roots.length; i < len; ++i) {
      findChildren(roots[i]);
  }
//  var returnV = JSON.stringify(roots);
//  callback(returnV);
  callback(roots)
}

function createStructure(data) {
    var arry = [];
    $.each(data, function(i, val) {
        var parent = val["ParentId"]["#text"];
        var id = val["NodeId"]["#text"];
        var text = val["NodeText"]["#text"];
        var level = val["NodeLevel"]["#text"];
        var ref = val["RefObject"]["#text"];
        var type = (val["NodeType"]["#text"]).substring(0,3);
        if(level == "01")
            rootId = parent;
        var item = {"Id": id, "Text": text, "Parent": parent, "Type" : type, "Ref" : ref};
        arry[i] = item;
//      arry.push(item);        
    });
    console.log(arry)
    return arry;
}
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1 回答 1

1

JSON 可以将原生 JavaScript 对象编码（“字符串化”）为字符串表示法。它可以从该符号反向创建该对象的另一个实例。

样本：

var myArray = new Array("a", "b", "c");
var jsonNotation = JSON.stringify(myArray);
console.log(jsonNotation);

会给：

[
 "a",
 "b",
 "c"
]

上面的代码

[Object]
   0: Object
      children: Array[1]

不是 JavaScript。

于 2013-05-14T15:57:04.513 回答