Sax解析XML

//

//  ViewController.m

//  13-sax解析xml

//

//  Created by 唐帅 on 15/6/27.

//  Copyright © 2015年 TS. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()<NSXMLParserDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {

    [superviewDidLoad];

   

    [selfloadData];

}

- (void)loadData{

    // 获取URL

    NSURL *URL = [NSURLURLWithString:@"http://localhost/videos.xml"];

    // 创建请求

    NSURLRequest *request = [NSURLRequestrequestWithURL:URL];

    // 发送异步请求

    [NSURLConnectionsendAsynchronousRequest:requestqueue:[NSOperationQueuemainQueue] completionHandler:^(NSURLResponse *_Nullable response, NSData * _Nullable data,NSError * _Nullable connectionError) {

        if (connectionError ==nil && data.length >0) {

             //1:创建解析器

            NSXMLParser *parser = [[NSXMLParseralloc]initWithData:data];

            //

            parser.delegate =self;

            [parser parse];

            

        }

    }];

}

//开始解析文档

-(void)parserDidStartDocument:(NSXMLParser *)parser

{

    NSLog(@"1.开始解析文档 %@",[NSThreadcurrentThread]);

}

//找开始节点

-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary<NSString *,NSString *> *)attributeDict

{

    

    NSLog(@"2.找开始节点 %@--%@",elementName,attributeDict);

}

//找节点之间的内容

-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string

{

    NSLog(@"3.找节点之间的内容 %@",string);

}

//找结束节点

-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName

{

    NSLog(@"4.找结束节点 %@",elementName);

}

//结束解析文档

-(void)parserDidEndDocument:(NSXMLParser *)parser

{

      NSLog(@"5.结束解析文档");

}

// 6.监听XML文件是否解析出错.

-(void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError

{

     NSLog(@"6.监听XML文件是否解析出错 %@",parseError);

}

@end