1.创建NSXMLParser
要使用NSXMLParser要先创建它，设置各种属性，主要用到以下几个方法：
initWithContentsOfURL通过NSURL创建解析器
initWithData通过NSData创建解析器
setDelegate为解析器定义委托
parse运行解析器
NSData * xmlData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Student" ofType:@"txt"]];
NSXMLParser * xmlParser = [[NSXMLParser alloc]initWithData:xmlData];
xmlParser.delegate = self;
[xmlParser parse];
[xmlParser release];
// 开始解析
- (void)parserDidStartDocument:(NSXMLParser *)parser{
NSLOG_FUNCTION;
}
//解析到某个起始标签
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
NSLog(@"%@",elementName);
NSLOG_FUNCTION;
}
//解析到节点的值
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
NSLOG_FUNCTION;
NSLog(@"%@",string);
}
//解析到某个结束标签
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
NSLog(@"%@",elementName);
NSLOG_FUNCTION;
}
//结束解析
- (void)parserDidEndDocument:(NSXMLParser *)parser{
NSLOG_FUNCTION;
}
