#import "ViewController.h"

#import "DDXML.h"

@interface ViewController ()

@end

@implementation ViewController

/*

 解析XML：开源框架：KissXML  依赖：libxml2.2.dylib(项目配置-->General-->Linked Frameworks and Libraries-->点击+号-->输入libxml2.2.dylib-->add)

 

 如果使用libxml2.2.dylib，则需要在header search path中添加路经：(Build Settings --> Search Paths --> Header Search Paths中添加/usr/include/libxml2-->回车)

 

 */

- (void)viewDidLoad {

    [super viewDidLoad];

    //1.组装XML

    [self builXML];

   

    //2.解析XML

    //解析XML的方式：

    //DOM:  当前标签量少的时候

    //SAX:  当前标签量大的时候

    [self parseXML];

}

/**

 <movie country="USA" >  // 主标签：属性：country：USA

 <title>X战警</title>   //子标签title： X战警

 <actor>Bob Dylan</actor> //子标签 actor：  Bob Dylan

 </movie>

*/

//组装XML

- (void)builXML {

    //1.创建标签

    DDXMLElement *element = [DDXMLElement elementWithName:@"movie"];

   

    //设置属性

    DDXMLDocument *document = [DDXMLDocument attributeWithName:@"country" stringValue:@"USA"];

    [element addAttribute:document];

   

   

    //2.添加子标签

    DDXMLDocument *title = [DDXMLDocument elementWithName:@"title" stringValue:@"X战警"];

    DDXMLDocument *actor = [DDXMLDocument elementWithName:@"actor" stringValue:@"Bob Dylan"];

   

    [element addChild:title];

    [element addChild:actor];

   

//    NSLog(@"element：%@",element);

}

- (void)parseXML {

 //获取

    NSString *filePath = [[NSBundle mainBundle]pathForResource:@"file.xml" ofType:nil];

   

    NSData *data = [NSData dataWithContentsOfFile:filePath];

   

//解析

    DDXMLDocument *doc = [[DDXMLDocument alloc]initWithData:data options:0 error:nil];

    NSLog(@"%@",doc);

    //xml文件中所有的价格

//    NSString *xpath = @"/catalog//price";

    //同上

//    NSString *xpath = @"/catalog/*/price";

   

    // cd下的所有内容

    NSString *xpath = @"//*";

   NSArray *arr = [doc nodesForXPath:xpath error:nil];

   

    NSLog(@"--%@",arr);

   

    for (DDXMLElement *element in arr) {

       

        NSLog(@"%@",element.stringValue);

    }

   

   

}

@end

 

 ----------------------------------------分割线-------------------------------------------------

//XML文档

 

<?xml version="1.0" encoding="UTF-8"?>

<catalog>

    <cd1 country="USA">

        <title>Empire Burlesque</title>

        <artist>Bob Dylan</artist>

        <price>10.90</price>

    </cd1>

    <cd2 country="UK">

        <title>Hide your heart</title>

        <artist>Bonnie Tyler</artist>

        <price>9.90</price>

    </cd2>

    <cd3 country="USA">

        <title>Greatest Hits</title>

        <artist>Dolly Parton</artist>

        <price>9.90</price>

    </cd3>

</catalog>