初始化方法：
Initializes a parser with the XML content referenced by the given URL.
- initWithData:
Designated Initializer
Initializes a parser with the XML contents encapsulated in a given data object.
Initializes a parser with the XML contents from the specified stream and parses it..
一个简单的xml文件解析
实例：
.h
#import<Foundation/Foundation.h>
@interfaceMyXMLParser :NSObject<NSXMLParserDelegate>
@property(nonatomic,strong)NSMutableArray* arrM;
-(void)test;
@end
#import"MyXMLParser.h"
#import"Student.h"
MyXMLParser()
{
NSMutableString* _elementStr;
Student* student;
}
@end
@implementationMyXMLParser
-(void)test
{
NSString* path = [[NSBundlemainBundle]pathForResource:@"test"ofType@"xml"];
NSXMLParser* parser = [[alloc]initWithContentsOfURL:[NSURLURLWithString:path]];
parser.delegate=self;
[parserparse];
}
#pragma mark - 解析开始
-(void)parserDidStartDocument:(NSXMLParser*)parser
{
_arrM= [NSMutableArrayarray];
_elementStr= [NSMutableStringstring];
}
#pragma mark -解析完成
-(void)parserDidEndDocument:(NSXMLParser*)parser
{
NSLog(@"%@",_arrM);
}
#pragma mark -
-(void)parser:(NSXMLParser*)parser didStartElement:(nonnullNSString*)elementName namespaceURI:(nullableNSString*)namespaceURI qualifiedName:(NSString*)qName attributes:(NSDictionary<NSString*,NSString*> *)attributeDict
{
if([elementNameisEqualToString:@"student"]) {
student= [[Studentalloc]init];
}
[_elementStrsetString@"" #pragma mark 循环查找节点内容
- (NSXMLParser*)parser foundCharacters:(NSString*)string
{
// 拼接字符串
[_elementStrappendString:string];
}
#pragma mark 一个节点完成
- (NSXMLParser*)parser didEndElement:(NSString*)elementName namespaceURI:(NSString*)namespaceURI qualifiedName:(NSString*)qName
{
NSString*result = [NSStringstringWithString:_elementStr];
@"student"]) {
[_arrMaddObject:student];
}else@"name"]){
student.name= result;
}@"sex"]) {
sex= result;
}
}
#pragma mark - 出错
-(NSXMLParser*)parser validationErrorOccurred:(NSError*)validationError
{
[removeAllObjects];
NSLog(@"%@"错误 ");
description);
}
其他的代理方法不一一详述
