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我有我的XML解析工作，但我想拿起一個值，實際上我的解析器讀取，並將它們全部寫在NSDictionnary選擇標籤與NSXML分析器的Objective-C解析XML時
讓我告訴你
我在說的xml：XML
正如你所看到的，主標籤是「marche」，有7個標籤「echeance」。在每個標籤中，我們有最後10個日期，每個「日期」包含多個值。
其實，我想獲得這些價值觀念，只有那些價值：
- 對於每個「echeance」，拿起標籤「echeance」中的attibute「NOM」和「擺平」與變異最近的日期（每個方案）。
這是我得到的結果是：
2012-03-02 20:04:08.576 XML[4497:f803] stories :(
{
echeance = "Mars 2012\n ";
settle = "205.25\n 205.5\n 206\n 205\n 202.75\n 204\n 204.75\n 206.5\n 206.25\n 210\n ";
variation = "-0.25\n \n -0.5\n \n 1\n \n 2.25\n \n -1.25\n \n -0.75\n \n -1.75\n \n 0.25\n \n -3.75\n \n 1.5\n \n ";
},
{
echeance = "Juin 2012\n ";
settle = "207.75\n 207.5\n 207.25\n 206\n 204.75\n 205.5\n 206.25\n 207.25\n 206.5\n 210.5\n ";
variation = "0.25\n \n 0.25\n \n 1.25\n \n 1.25\n \n -0.75\n \n -0.75\n \n -1\n \n 0.75\n \n -4\n \n 0.75\n \n ";
},
{
echeance = "Ao\U00fbt 2012\n ";
settle = "209.75\n 209.25\n 208.5\n 207.25\n 205.75\n 207.25\n 207.75\n 208.75\n 208.5\n 211.75\n ";
variation = "0.5\n \n 0.75\n \n 1.25\n \n 1.5\n \n -1.5\n \n -0.5\n \n -1\n \n 0.25\n \n -3.25\n \n 0.25\n \n ";
},
{
echeance = "Novembre 2012\n ";
settle = "188.25\n 188\n 186.75\n 186.25\n 184.75\n 184.75\n 186.5\n 186\n 185\n 188.5\n ";
variation = "0.25\n \n 1.25\n \n 0.5\n \n 1.5\n \n 0\n \n -1.75\n \n 0.5\n \n 1\n \n -3.5\n \n 1\n \n ";
},
{
echeance = "Janvier 2013\n ";
settle = "189.75\n 189\n 189.5\n 188.75\n 187.25\n 187.25\n 188.5\n 188.5\n 187.5\n 190\n ";
variation = "0.75\n \n -0.5\n \n 0.75\n \n 1.5\n \n 0\n \n -1.25\n \n 0\n \n 1\n \n -2.5\n \n 0\n \n ";
},
{
echeance = "Mars 2013\n ";
settle = "191\n 191\n 191.5\n 190.75\n 189.25\n 189.25\n 190.5\n 190.5\n 189.5\n 192\n ";
variation = "0\n \n -0.5\n \n 0.75\n \n 1.5\n \n 0\n \n -1.25\n \n 0\n \n 1\n \n -2.5\n \n 1\n \n ";
},
{
echeance = "Juin 2013\n ";
settle = "194.5\n 194.5\n 195.5\n 194.75\n 193.25\n 193.25\n 194.5\n 194.5\n 193.5\n 196\n ";
variation = "0\n \n -1\n \n 0.75\n \n 1.5\n \n 0\n \n -1.25\n \n 0\n \n 1\n \n -2.5\n \n 3\n \n ";
}
）
正如你可以看到我有一個美麗的NSDictionnary「故事」與各「NOM」「echeance但」擺平「和‘變化’，我有值的所有日期爲每個‘echeance’，而不是隻有最近
如果我的解析器會的工作，我應該有類似的東西。
2012-03-02 20:04:08.576 XML[4497:f803] stories :(
{
echeance = "Mars 2012";
settle = "205.25"
variation = "-0.25"
},
{
echeance = "Juin 2012";
settle = "207.75"
variation = "0.25"
..... ..... .....
ETC ...
這裏是我的代碼：
我的.m型號：
#import "XMLParser.h"
@implementation XMLParser
@synthesize stories;
@synthesize delegate;
- (void)parseXMLAtURL:(NSURL*)path
{
stories = [[NSMutableArray alloc] init];
textParser = [[NSXMLParser alloc] initWithContentsOfURL:path];
[textParser setDelegate:self];
[textParser parse];
}
- (void)parserDidStartDocument:(NSXMLParser *)parser
{
}
- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError
{
NSString * errorString = [NSString stringWithFormat:@"Impossible de parser le document (Code erreur %i)", [parseError code]];
NSLog(@"erreur de parsing XML: %@", errorString);
UIAlertView * errorAlert = [[UIAlertView alloc] initWithTitle:@"Erreur lors du chargement" message:errorString delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[errorAlert show];
[errorAlert release];
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if(currentElement)
{
[currentElement release];
currentElement = nil;
}
currentElement = [elementName copy];
if ([elementName isEqualToString:kExpiry])
{
if(item)
{
[item release];
item = nil;
}
if(currentExpiry)
{
[currentExpiry release];
currentExpiry = nil;
}
if(currentSettle)
{
[currentSettle release];
currentSettle = nil;
}
if(currentVariation)
{
[currentVariation release];
currentVariation = nil;
}
item = [[NSMutableDictionary alloc] init];
currentVariation = [[NSMutableString alloc] init];
currentSettle = [[NSMutableString alloc] init];
currentExpiry = [[NSMutableString alloc] initWithFormat:[attributeDict objectForKey:@"nom"]];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if ([elementName isEqualToString:kExpiry])
{
[item setObject:currentExpiry forKey:kExpiry];
[item setObject:currentSettle forKey:kCloture];
[item setObject:currentVariation forKey:kChange];
[stories addObject:item];
}
//NSLog(@"compteur : %i",compteur);
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
// on sauve les éléments de l' echeancepour l'item en cours
if ([currentElement isEqualToString:kCloture])
[currentSettle appendString:string];
else if ([currentElement isEqualToString:kExpiry])
[currentExpiry appendString:string];
else if ([currentElement isEqualToString:kChange])
[currentVariation appendString:string];
}
- (void)parserDidEndDocument:(NSXMLParser *)parser
{
NSLog(@"C’est fini !");
NSLog(@"stories a %d echeances", [stories count]);
NSLog(@"stories :%@", stories);
[self performSelectorOnMainThread:@selector(tellTheDelegateItIsFinished) withObject:nil waitUntilDone:NO];
}
- (void) tellTheDelegateItIsFinished {
[delegate xmlParserdidFinishParsing];
}
- (void) dealloc
{
[stories release];
[textParser release];
[item release];
[currentVariation release];
[currentExpiry release];
[currentSettle release];
[super dealloc];
}
@end
我想我需要「計數」，並挑選了只有我需要的價值，但它不工作
我的另一個問題是「\ n」。我不能夠避免那些「\ n」 :(但主要的問題是撿的「好值」的;）
感謝所有
嗯，好的！你對我有什麼建議！ （我很抱歉，我是編程世界的初學者） – Romain 2012-03-02 20:14:53
嗯，我永遠不會按照你的方式構建程序。我會設計出符合數據本質的實際對象，並將整個XML解析爲這些對象。我有一個Marche類和一個Echeance類以及一個Date類和一個Graphe類，我會將整個XML分層結構解析爲一個結構以匹配XML的結構。而且我不會試着像你在做的那樣用一個委託來解析XML;我會使用多委託策略：https：//developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/XMLParsing/Articles/UsingMultipleDelegates.html – matt 2012-03-03 00:11:45