Question

我有以下XML结构：

<product>
 <id>3482</id>
 <title>Product 1</title>
 <number>1</number>
 <description>Text</description>
</product>

<product>
 <id>4743</id>
 <title>Product 2</title>
 <number>2</number>
 <description>Text</description>
</product>

<product>
 <id>3864</id>
 <title>Product 3</title>
 <number>3</number>
 <description>Text</description>
</product>

将所有内容解析并保存在我的NSMutableArray中。现在我只想检索键“title”的值。但是当我打印我的NSMutableArray时，我得到：

"<ChartListDataParserEntries: 0x1edf3c00>"

在ChartListDataParserEntries.m中，我正在管理已解析的XML文件的元素。

我已经尝试过了：

for（ChartListDataParserEntries * self.parsedChartNew中的CLDPE）{}

但这只给了我一个元素的单一结果。

那么如何才能捕获所有“标题”值（产品1，产品2，产品3 ......）？

修改

- (id)initWithData:(NSData *)data delegate:(id <ChartListParserDelegate>)theDelegate
{
    self = [super init];

    if (self != nil)
    {
        self.dataToParse = data;
        self.delegate = theDelegate;
    }

    return self;
}

- (void)main
{
    NSXMLParser *parser = [[NSXMLParser alloc] initWithData:self.dataToParse];
    [parser setDelegate:self];
    [parser parse];

    self.dataToParse = nil;
}

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict
{
    if ([elementName isEqualToString:@"chart"])
    {
        return;
    }
    else if ([elementName isEqualToString:@"new"])
    {
        self.fullyParsedChartNew = [NSMutableArray array];
        chartListDataEntries = [[ChartListDataParserEntries alloc] init];
    }
    else if ([elementName isEqualToString:@"soon"])
    {
        self.fullyParsedChartSoon = [NSMutableArray array];
        chartListDataEntries = [[ChartListDataParserEntries alloc] init];
    }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
    if (!self.parsingResults)
    {
        self.parsingResults = [NSMutableString stringWithString:string];
    }
    else
    {
        [self.parsingResults appendString:string];
    }
}

- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError
{
    NSLog(@"%@", parseError);
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
    if ([elementName isEqualToString:@"chart"])
    {
        return;
    }
    else if ([elementName isEqualToString:@"new"])
    {
        [self.fullyParsedChartNew addObject:chartListDataEntries];
        chartListDataEntries = nil;
    }
    else if ([elementName isEqualToString:@"soon"])
    {
        [self.fullyParsedChartSoon addObject:chartListDataEntries];
        chartListDataEntries = nil;
    }
    else
    {
        [chartListDataEntries setValue:self.parsingResults forKey:elementName];
        self.parsingResults = nil;
    }
}

- (void)parserDidEndDocument:(NSXMLParser *)parser
{
    if (![self isCancelled])
    {
        NSLog(@"%@", [self.fullyParsedChartNew valueForKeyPath:@"product_title"]);
        [self.delegate didFinishParsing:self.fullyParsedChartNew andChart:self.fullyParsedChartSoon];
    }
}

ChartListDataParserEntries.h

@interface ChartListDataParserEntries : NSObject
{
    NSString *product_id;
    NSString *product_title;
    NSString *product_genre;
    NSString *product_price;
    NSString *product_stock;
    NSString *product_stock_color;
    NSString *product_stock_text;

    UIImage *product_image;
}

@property (nonatomic, retain) NSString *product_id;
@property (nonatomic, retain) NSString *product_title;
@property (nonatomic, retain) NSString *product_genre;
@property (nonatomic, retain) NSString *product_price;
@property (nonatomic, retain) NSString *product_stock;
@property (nonatomic, retain) NSString *product_stock_color;
@property (nonatomic, retain) NSString *product_stock_text;

@property (nonatomic, retain) UIImage *product_image;

@end

Answer 1

尝试：

NSArray *titleArray = [array valueForKey:@"title"];

这将返回包含所有标题的数组。

从NSMutableArray中的已解析数据中检索元素值

修改

1 个答案: