XML文件解析---SAX方法

XML文件如下：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<books>

<book name="book1" num="1" > 出版于1991年 </book>
<book name="book2" num="2" > 出版于1992年 </book>
<book name="book3" num="3" > 出版于1993年 </book>
<book name="book4" num="4" > 出版于1994年 </book>

</books>

解析后的结果：

封装model来接收解析后的XML文件数据

JRBook.h文件

#import <Foundation/Foundation.h>

@interface JRBook : NSObject

//书籍名称
@property (nonatomic,copy)Nsstring * name;


//书籍数量
@property (nonatomic,assign) NSInteger number;


//出版年份
@property (nonatomic,copy) Nsstring * punDate;


+ (JRBook *) getBookWithDic:(NSDictionary *) dic;

@end

JRBook.m文件

#import "JRBook.h"

@implementation JRBook


+ (JRBook *) getBookWithDic:(NSDictionary *) dic
{
JRBook * book=[[JRBook alloc]init];
book.name=dic[@"name"];
book.number=[dic[@"num"] integerValue];

return book;
}

@end

ViewController.m文件
#import "ViewController.h" #import "JRBook.h" @interface ViewController () <NSXMLParserDelegate> { JRBook * tempBook; NSMutableString * tempPublic; } /** 存放model 的数组 */ @property (nonatomic,strong) NSMutableArray * dataArray; @end @implementation ViewController #pragma mark - 懒加载 - (NSMutableArray *) dataArray { if (_dataArray==nil) { _dataArray=[NSMutableArray array]; } return _dataArray; } #pragma mark - 程序入口 - (void)viewDidLoad { [super viewDidLoad]; } #pragma mark - 点击屏幕开始解析XML文件 - (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { //1>>> 初始化parse对象 Nsstring * path=[[NSBundle mainBundle]pathForResource:@"xml.xml" ofType:nil]; NSData * data=[NSData dataWithContentsOfFile:path]; NSXMLParser * parse=[[NSXMLParser alloc]initWithData:data]; //2>>> 设置代理,监控解析 parse.delegate=self; //3>>> 开始解析 [parse parse]; //4>>> for(JRBook * book in self.dataArray) { NSLog(@"书籍名称: %@-----书籍数量: %li----出版年份：%@",book.name,book.number,book.punDate); } } #pragma mark - 实现 NSXMLParserDelegate 的代理方法 - (void)parserDidStartDocument:(NSXMLParser *)parser { //NSLog(@"start"); } - (void)parserDidEndDocument:(NSXMLParser *)parser { //NSLog(@"end"); } - (void)parser:(NSXMLParser *)parser didStartElement:(Nsstring *)elementName namespaceURI:(Nsstring *)namespaceURI qualifiedname:(Nsstring *)qName attributes:(NSDictionary *)attributeDict { if([elementName isEqualToString:@"book"]) { tempPublic=[NSMutableString string]; tempBook =[JRBook getBookWithDic:attributeDict]; } } - (void)parser:(NSXMLParser *)parser didEndElement:(Nsstring *)elementName namespaceURI:(Nsstring *)namespaceURI qualifiedname:(Nsstring *)qName { if([elementName isEqualToString:@"book"]) { tempBook.punDate=tempPublic; [self.dataArray addobject:tempBook]; } } - (void)parser:(NSXMLParser *)parser foundCharacters:(Nsstring *)string { [tempPublic appendString:string]; } @end