Question

我是java脚本的新手。

现有的javascript代码可以读取JSON文档并创建XML。但是xml文档没有与JSON文档中的元素顺序相同的元素。如何实现这一目标？目前，java脚本使用树。我使用list，hash但是徒劳无功。不确定要使用哪种javascript数据结构，以便不按排序顺序/字母顺序存储数据。任何代码示例都非常受欢迎。

JSON:
{
  "data:xxData": {
    "xyz": "value",
    "abc": "order",

  }
}

结果XML：

<data:xxData>
    <abc>order</abc>
    <xyz>value</xyz>
</data:xxData>

预期的正确XML：

 <data:xxData>
    <xyz>value</xyz>
    <abc>order</abc>
 </data:xxData>

提前致谢。

以下是代码：

我通过传递JSON字符串来调用writeXML。

    XML.ObjTree.prototype.writeXML = function ( tree ) {
        var xml = this.hash_to_xml( null, tree );
        return this.xmlDecl + xml;
    };


    XML.ObjTree.prototype.hash_to_xml = function ( name, tree ) {
        var elem = [];
        var attr = [];
        for( var key in tree ) {
            print("key: "+ key+'\n')
            //print("tree: "+ tree[key]+'\n')
            if ( ! tree.hasOwnProperty(key) ) continue;
            var val = tree[key];
            if ( key.charAt(0) != this.attr_prefix ) {
                if ( typeof(val) == "undefined" || val == null ) {
                    elem[elem.length] = "<"+key+" />";
                } else if ( typeof(val) == "object" && val.constructor == Array ) {
                    elem[elem.length] = this.array_to_xml( key, val );
                } else if ( typeof(val) == "object" ) {
                    elem[elem.length] = this.hash_to_xml( key, val );
                } else {
                    elem[elem.length] = this.scalar_to_xml( key, val );
                }
            } else {
                attr[attr.length] = " "+(key.substring(1))+'="'+(this.xml_escape( val ))+'"';
            }
        }
        var jattr = attr.join("");
        var jelem = elem.join("");
        if ( typeof(name) == "undefined" || name == null ) {
            // no tag
        } else if ( elem.length > 0 ) {
            if ( jelem.match( /\n/ )) {
                jelem = "<"+name+jattr+">\n"+jelem+"</"+name+">\n";
            } else {
                jelem = "<"+name+jattr+">"  +jelem+"</"+name+">\n";
            }
        } else {
            jelem = "<"+name+jattr+" />\n";
        }
        return jelem;
    };


XML.ObjTree.prototype.array_to_xml = function ( name, array ) {
    var out = [];
    for( var i=0; i<array.length; i++ ) {
        var val = array[i];
        if ( typeof(val) == "undefined" || val == null ) {
            out[out.length] = "<"+name+" />";
        } else if ( typeof(val) == "object" && val.constructor == Array ) {
            out[out.length] = this.array_to_xml( name, val );
        } else if ( typeof(val) == "object" ) {
            out[out.length] = this.hash_to_xml( name, val );
        } else {
            out[out.length] = this.scalar_to_xml( name, val );
        }
    }
    return out.join("");
};

//  method: scalar_to_xml( tagName, text )

XML.ObjTree.prototype.scalar_to_xml = function ( name, text ) {
    if ( name == "#text" ) {
        return this.xml_escape(text);
    } else {
        return "<"+name+">"+this.xml_escape(text)+"</"+name+">\n";
    }
};

//  method: xml_escape( text )

XML.ObjTree.prototype.xml_escape = function ( text ) {
    return (text + '').replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;');
};

Answer 1

你走了：

JSON:
{
  "data:xxData": [
     { "xyz": "value" },
     { "abc": "order" }
    ]
  }
}

Javascript名称值以未分类的方式存储

1 个答案: