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我有一个XML文件,我解析。NSXMLParser问题
NSURL *url = [NSURL URLWithString:@"url.xml"];
NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60];
self.downloadData = [[NSMutableData alloc] initWithLength:0];
self.connection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];
我有所有的连接工作,我以为我有解析工作,但我有问题,不知道我做错了。
我didStartElement:
-(void) parser:(NSXMLParser *) parser didStartElement:(NSString *) elementName namespaceURI:(NSString *) namespaceURI qualifiedName:(NSString *) qName attributes:(NSDictionary *) attributeDict {
if ([elementName isEqualToString:kimgurl])
{
elementFound = YES;
}
}
foundCharacter:
-(void)parser:(NSXMLParser *) parser foundCharacters:(NSString *)string {
if (elementFound == YES) {
if(!currentValue)
{
currentValue = [[NSMutableString alloc] init];
}
[currentValue appendString: string];
}
}
然后didEndElement:
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if (elementFound) {
if ([elementName isEqualToString:kimgurl]) {
NSLog(@"imgurl: %@", currentValue);
imageItems.imageURL = currentValue;
NSLog(@"elname: %@", elementName);
NSLog(@"img: %@", kimgurl);
[currentValue setString:@""];
NSLog(@"imageitem: %@", imageItems.imageURL);
}
}
}
我有NSLogs那里,因为imageItems.imageURL为空。这是一个类似于这样的类文件。
ImageItems.h
@interface ImageItems : NSObject {
//parsed data
NSString *imageURL;
}
@property (nonatomic, retain) NSString *imageURL;
@end
ImageItems.m
#import "ImageItems.h"
@implementation ImageItems
@synthesize imageURL;
-(void)dealloc
{
[imageURL release];
[super dealloc];
}
@end
你可以通过我的代码告诉我是新来的Objective-C。
currentValue具有我正在寻找的值。为什么imageItems为空?我错过了什么?
我这样做,我得到EXC_BAD_ACCESS。可能与将ImageItems作为@class调用有关吗? – user574947 2011-01-14 03:50:12