NSXMLParser的使用

NSXMLParser解析xml格式的数据 用法如下：

 

首先，NSXMLParser必须继续NSXMLParserDelegate协议

 

@interface XMLHelper : NSObject <NSXMLParserDelegate>

 

首先设置XML数据，并初始化NSXMLParser

 

- (void)viewDidLoad { NSString *strPathXml = [[NSBundle mainBundle] pathForResource:@"images" ofType:@"xml"]; NSData *xmlData = [[NSData alloc] initWithContentsOfFile:strPathXml]; NSXMLParser *parserXML = [[NSXMLParser alloc] initWithData:xmlData]; [parser setShouldProcessNamespaces:NO]; [parser setShouldReportNamespacePrefixes:NO]; [parser setShouldResolveExternalEntities:NO]; [parser setDelegate:self]; [parser parse];   [super viewDidLoad]; }

 

 

//遍例xml的节点

 

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { NSLog(@"Name:%@",elementName); }

 

 

 

//当xml节点有值时，则进入此句 

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { NSLog(@"Value:%@",string); }

 

//当遇到结束标记时，进入此句

 

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