Swift开发：创建XML文件，包含节点，属性值

－－－－－－－－－－－－－－－XmlWrite.swift－－－－－－－－－－－－－－－－－

//
// XmlWrite.swift
// CreateXmlFile
//
// Created by 黄涛 on 16/5/25.
// Copyright © 2016年 黄涛. All rights reserved.
//

import UIKit

class XmlWrite: NSObject {

fileprivate let xmlHead = "<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>"
fileprivate var dirPath = ""
fileprivate var fileName = ""
fileprivate var filePath = ""
fileprivate var root = "";
init(dir: String,fileName: String,root:String) {
super.init()
self.dirPath = dir
self.fileName = fileName
self.filePath = dirPath + self.fileName
self.root = root;
items = [];
}

var items:[Item]?;

func saveXml() {

let data = NSMutableData()//可变数据

// xml 文件声明
data.append("\(xmlHead)\n<\(root)>\n".data(using: String.Encoding.utf8, allowLossyConversion: true)!)

// 遍历 item 第一层
for i in 0..<items!.count {

if items![i].attributes != nil {

// 获取item 属性string
let itemStr:String? = ItemToString(items![i])
// 添加item属性
data.append(" \(itemStr!)\n".data(using: String.Encoding.utf8, allowLossyConversion: true)!)

}

// 当前item 的node集合
let nodes = items![i].nodes;

for j in 0..<nodes!.count {
//获取node 属性string
let node = (nodes?[j])!;
// 判断当前节点的子节点
let isSub = node.subNode?.count > 0 ? true : false;

let nodeStr:String? = NodeToString(node,isSub: isSub);
// print(nodeStr)
// 添加node属性
data.append(" \(nodeStr!)\n".data(using: String.Encoding.utf8, allowLossyConversion: true)!)

if node.subNode?.count > 0
{
for k in 0..<node.subNode!.count
{
//获取node 属性string
let snode = node.subNode?[k];
let snodeStr:String? = NodeToString(snode!,isSub: false);
// print(snodeStr)
// 添加node属性
data.append(" \(snodeStr!)\n".data(using: String.Encoding.utf8, allowLossyConversion: true)!)
data.write(toFile: filePath, atomically: true)
}
// 当前 子节点 结束
data.append(" </\(node.name)>\n".data(using: String.Encoding.utf8, allowLossyConversion: true)!)
}
}

// 当前 item 结束
data.append(" </\(items![i].name)>\n".data(using: String.Encoding.utf8, allowLossyConversion: true)!)
data.write(toFile: filePath, atomically: true)
}

// 当前 root 结束
data.append("</\(root)>\n".data(using: String.Encoding.utf8, allowLossyConversion: true)!)

//写入文件中
data.write(toFile: filePath, atomically: true)

print(filePath)
}

func ItemToString(_ item:Item) ->String {
// 1 拼接 节点名称
let nodeName = item.name
var nodeStr:String = nodeName.elementStartTag() + " "

if item.attributes?.count == 0 {
return nodeStr;
}
// 2 拼接节点 属性
for (key,value) in (item.attributes)! {
nodeStr += "\(key)=\"\(value)\" "
}
nodeStr += ">"
return nodeStr
}

func NodeToString(_ node:Node,isSub:Bool) ->String {
// 1 拼接 节点名称
let nodeName = node.name
var nodeStr:String = nodeName.elementStartTag() + " "

// 2 拼接节点 属性
for (key,value) in (node.attributes)! {
nodeStr += "\(key)=\"\(value)\" "
}

if isSub {
nodeStr += ">"
}
else {
nodeStr += "/>"
}
return nodeStr
}
}

class Item {
init(name:String) {
self.name = name;
nodes = [];
}
var name:String = "";
var attributes:[String:String]?
var nodes:[Node]?;

func addNode(_ node:Node){
nodes?.append(node);
}

}

class Node {
init(name:String) {
self.name = name;
subNode = [];
}
init (){
subNode = [];
}
var id = 0;
var name = ""
var attributes:[String:String]?
var subNode:[Node]?;

func addSubNode(_ node:Node){
subNode?.append(node);
}
}

extension String {

func elementStartTag() -> String {
return "<" + self
}

func elementEndAttributesTag() -> String {
return self + ">"
}

func elementEndTag() -> String {
return "</" + self + ">"
}

}



－－－－－－－－－－－－－－－－－代码调用－－－－－－－－－－－－－－－

  dispatch_async(dispatch_get_main_queue()) { () ->Void
in

           

            // 1 创建xml文件路径，名称

            let xml =XmlWrite(dir:
"/Users/huangtao/Desktop/", fileName:"data.xml")

            

            // 2 创建第一个节点数据

            let item1:Item =Item(name:
"Item1");

            item1.attributes = ["A1":"1","A2":"2"]

            for(var i=0;i<5;i++)
{

                let node =Node(name:"note-\(i)");

                node.id = i+1;

                node.attributes = ["ID":"\(i)","Name":"我的名称-\(i)"]

                item1.addNode(node);

            

            }

            xml.items?.append(item1);

            

            // 3 创建第二个节点数据

            let item2:Item =Item(name:
"Item2");

            for(var i=0;i<10;i++)
{

                let node =Node(name:"note-\(i)");

                node.id = i+1;

                node.attributes = ["ID":"\(i)","Name":"N-\(i)","Disp":"1","Appliance":"1","Icon":"ic_switch_4"]

                item2.addNode(node);

                

            }

            xml.items?.append(item2);

            

            // 4 保存文件

            xml.saveXml()

        

            

        }

－－－－－－－－－－－－－－－－－效果图－－－－－－－－－－－－－－－



解析xml见博客:

http://blog.csdn.net/taoerit/article/details/51304317