#import "ViewController.h"
#import "Student.h"
//一共要3步.第一引入libxml2.tbd//2.-fno-objc-arc//3./usr/include/libxml2
@interface ViewController ()<NSXMLParserDelegate>
@property(nonatomic,strong)NSString *currentlement;//存放当前节点
@property(nonatomic,strong)NSMutableArray *array;//存放解析出来的模型
@end
@implementation ViewController
-(NSMutableArray *)array{
if (!_array) {
_array = [NSMutableArray array];
}return _array;
}
- (void)viewDidLoad {
[super viewDidLoad];
NSLog(@"SAX解析");
//1.获取文件路径
NSString *filepath = [[NSBundle mainBundle]pathForResource:@"XML_stu" ofType:@"txt"];
//2.创建data
NSData *data = [NSData dataWithContentsOfFile:filepath];
//3.创建解析对象
NSXMLParser *parser =[[NSXMLParser alloc]initWithData:data];
//4.遵循协议设置代理
parser.delegate = self;
//5.开始解析
[parser parse];
}
//实现协议方法
//1.开始解析
-(void)parserDidStartDocument:(NSXMLParser *)parser{
NSLog(@"开始解析");
}
//2.开始解析标签-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary*)attributeDict{
//获取当前节点
NSLog(@"%@",elementName);
self.currentlement =elementName;
//这一步的作用是根据节点提供的数据,来创建对应的modle(没有复制过程,只是创建模型)
if ([elementName isEqualToString:@"student"]) {
//初始化一个学生对象
Student *stu =[[Student alloc]init];
[self.array addObject:stu];
}
//3.读取标签的值
-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
NSLog(@"%@",string);
//我们需要数组里面最后一个值
Student *stu =self.array.lastObject;
//使用KVC编码赋值
[stu setValue:string forKey:self.currentlement];
}
//4.结束标签解析
-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
NSLog(@"%@",elementName);
self.currentlement =nil;
}
//5.结束文档解析
-(void)parserDidEndDocument:(NSXMLParser *)parser{
NSLog(@"文档解析结束");
for (Student *stu in self.array) {
NSLog(@"%@",stu);
}
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
