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我有我的XML解析工作，但我想拿起一个值，实际上我的解析器读取，并将它们全部写在NSDictionnary选择标签与NSXML分析器的Objective-C解析XML时
让我告诉你
我在说的xml：XML
正如你所看到的，主标签是“marche”，有7个标签“echeance”。在每个标签中，我们有最后10个日期，每个“日期”包含多个值。
其实，我想获得这些价值观念，只有那些价值：
- 对于每个“echeance”，拿起标签“echeance”中的attibute“NOM”和“摆平”与变异最近的日期（每个方案）。
这是我得到的结果是：
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个美丽的NSDictionnary“故事”与各“NOM”“echeance但”摆平“和‘变化’，我有值的所有日期为每个‘echeance’，而不是只有最近
如果我的解析器会的工作，我应该有类似的东西。
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 ...
这里是我的代码：
我的.m型号：
#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“计数”，并挑选了只有我需要的价值，但它不工作
我的另一个问题是“\ n”。我不能够避免那些“\ n” :(但主要的问题是捡的“好值”的;）
感谢所有
嗯，好的！你对我有什么建议！ （我很抱歉，我是编程世界的初学者） – Romain 2012-03-02 20:14:53
嗯，我永远不会按照你的方式构建程序。我会设计出符合数据本质的实际对象，并将整个XML解析为这些对象。我有一个Marche类和一个Echeance类以及一个Date类和一个Graphe类，我会将整个XML分层结构解析为一个结构以匹配XML的结构。而且我不会试着像你在做的那样用一个委托来解析XML;我会使用多委托策略：https：//developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/XMLParsing/Articles/UsingMultipleDelegates.html – matt 2012-03-03 00:11:45