我试图找出NSXMLParser，但我不确定为什么这行不通。我应该输入名字和姓氏以及年龄，但是它输出的是数字。
XML是
<?xml version="1.0" encoding="UTF-8"?>
<root>
<person id="1">
<firstName>Anthony</firstName>
<lastName>Robbins</lastName>
<age>51</age>
</person>
<person id="2">
<firstName>Richard</firstName>
<lastName>Branson</lastName>
<age>61</age>
</person>
</root>
在我的AppDelegate.m中，
#import "AppDelegate.h"
#import "XMLElement.h"
@interface AppDelegate () <NSXMLParserDelegate>
@property (nonatomic, strong) NSXMLParser *xmlParser;
@property (nonatomic, strong) XMLElement *rootElement;
@property (nonatomic, strong) XMLElement *currentElementPointer;
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSString *xmlFilePath = [[NSBundle mainBundle] pathForResource:@"MyHTML"
ofType:@"HTML"];
NSData *xml = [[NSData alloc] initWithContentsOfFile:xmlFilePath];
self.xmlParser = [[NSXMLParser alloc] initWithData:xml];
self.xmlParser.delegate = self;
if ([self.xmlParser parse]){
NSLog(@"The XML is parsed.");
/* self.rootElement is now the root element in the XML */
XMLElement *element = self.rootElement.subElements[1];
NSLog(@"%@", element.subElements);
} else{
NSLog(@"Failed to parse the XML");
}
self.window = [[UIWindow alloc] initWithFrame:
[[UIScreen mainScreen] bounds]];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
- (void)parserDidStartDocument:(NSXMLParser *)parser{
self.rootElement = nil;
self.currentElementPointer = nil;
}
- (void) parser:(NSXMLParser *)parser
didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
attributes:(NSDictionary *)attributeDict{
if (self.rootElement == nil){
/* We don't have a root element. Create it and point to it */
self.rootElement = [[XMLElement alloc] init];
self.currentElementPointer = self.rootElement;
} else {
/* Already have root. Create new element and add it as one of
the subelements of the current element */
XMLElement *newElement = [[XMLElement alloc] init];
newElement.parent = self.currentElementPointer;
[self.currentElementPointer.subElements addObject:newElement];
self.currentElementPointer = newElement;
}
self.currentElementPointer.name = elementName;
self.currentElementPointer.attributes = attributeDict;
}
- (void) parser:(NSXMLParser *)parser
foundCharacters:(NSString *)string{
if ([self.currentElementPointer.text length] > 0){
self.currentElementPointer.text =
[self.currentElementPointer.text stringByAppendingString:string];
} else {
self.currentElementPointer.text = string;
}
}
- (void) parser:(NSXMLParser *)parser
didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName{
self.currentElementPointer = self.currentElementPointer.parent;
}
- (void)parserDidEndDocument:(NSXMLParser *)parser{
self.currentElementPointer = nil;
}
在我的XMLElement类中是
#import "XMLElement.h"
@implementation XMLElement
- (NSMutableArray *) subElements{
if (_subElements == nil){
_subElements = [[NSMutableArray alloc] init];
}
return _subElements;
}
@end
我遇到了我的问题
2013-11-21 15:59:53.216 XML [7595:70b]已解析XML。
2013-11-21 15:59:53.219 XML [7595:70b](
“XMLElement:0x8d61200”，
“XMLElement:0x8d61270”，
“XMLElement:0x8d612e0”
)
2013-11-21 15:59:53.223 XML [7595:70b]应用程序窗口应在应用程序启动结束时具有根视图控制器
我想得到
2013-11-21 15:59:53.216 XML [7595:70b]已解析XML。
2013-11-21 15:59:53.219 XML [7595:70b](
“XMLElement:Richard”，
“XMLElement:布兰森”，
“XMLElement:61”
)
2013-11-21 15:59:53.223 XML [7595:70b]应用程序窗口应在应用程序启动结束时具有根视图控制器
最佳答案
设置方法如下:
#import "XMLElement.h"
@implementation XMLElement
- (NSMutableArray *) subElements {
if (_subElements == nil){
_subElements = [[NSMutableArray alloc] init];
}
return _subElements;
}
- (NSString *)description {
return [NSString stringWithFormat:"XMLElement: %@", self.text];
}
@end
关于ios - NSXMLParser输出“XMLElement:0x8d61200”，但需要“XMLElement:Richard”，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20197255/