xml数据的解析

首先创建一个xml文件

<data>
<person age = "15">ZhangSan</person>
<person age = "2">jikexueyuan</person>
<a>
<b>
    <c>
    </c>
</b>
</a>
</data>

将xml数据文件导入到文件列表中
随后再代码中创建xml的解析对象通知其代理随后开始解析

import UIKit

class ViewController: UIViewController,NSXMLParserDelegate{

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view,typically from a nib.
    //创建xml的解析对象 
        var parser = NSXMLParser(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("data",ofType: "xml")!))
    //通知代理
        parser?.delegate = self
        //开始解析
        parser?.parse()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
//实现代理的方法 来解析数据
    var currentNodeName:String?
    func parser(parser: NSXMLParser,didStartElement elementName: String,namespaceURI: String?,qualifiedName qName: String?,attributes attributeDict: [String : String]) {
        //获得名字
        print(elementName)
        currentNodeName = elementName
        //获得属性
        if elementName == "person"{
            //为了以防有的对象没有age的属性 则要对其进行判断 有没有age的属性
         
            if  let  age = attributeDict["age"] {
            print("age:\(age)")
    }
    }
}
    //查找当前内容
    func parser(parser: NSXMLParser,foundCharacters string: String) {
        //避免空格符号的出现
        var str = string.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet())
        if str != "" {
            print("current Node : \(currentNodeName) value is \(str)")
        }
    }
    
}

查找到的信息如下所示

age:15

current Node : Optional("person") value is ZhangSan

person

age:2

current Node : Optional("person") value is jikexueyuan

data

xml数据的解析

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