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我需要从webservicex.net解析以下xml for和iPhone App。我需要将Verse和BibleWords的经文存储到某些NSArray/NSDictionary或其他东西中。麻烦解析XML和提取数据
<string xmlns="http://www.webserviceX.NET">
<NewDataSet>
<Table>
<Book>1</Book>
<BookTitle>Genesis</BookTitle>
<Chapter>1</Chapter>
<Verse>1</Verse>
<BibleWords>In the beginning God created the heaven and the earth.</BibleWords>
</Table>
<Table>
<Book>1</Book>
<BookTitle>Genesis</BookTitle>
<Chapter>1</Chapter>
<Verse>2</Verse>
<BibleWords>And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.</BibleWords>
</Table>
<Table>
<Book>1</Book>
<BookTitle>Genesis</BookTitle>
<Chapter>1</Chapter>
<Verse>3</Verse>
<BibleWords>And God said, Let there be light: and there was light.</BibleWords>
</Table>
<Table>
<Book>1</Book>
<BookTitle>Genesis</BookTitle>
<Chapter>1</Chapter>
<Verse>4</Verse>
<BibleWords>And God saw the light, that it was good: and God divided the light from the darkness.</BibleWords>
</Table>
</NewDataSet>
</string>
我写了下面的代码来解析数据。
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
if ([elementName isEqualToString:@"string"]) {
model = [[Model alloc]init];
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if(!currentElementValue) {
currentElementValue = [[NSMutableString alloc]initWithString:string];
}
else {
[currentElementValue appendString:string];
}
NSLog(@"%@", currentElementValue);
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if ([elementName isEqualToString:@"NewDataSet"]) {
return;
}
if ([elementName isEqualToString:@"Table"]) {
[verses addObject:model];
model = nil;
}
else {
[model setValue:currentElementValue forKey:elementName]; //The exception break point hits here
}
currentElementValue = nil;
}
currentElementValue显示正确。 model是和类名为Model,currentElementValue的对象是NSMutableString对象verses是NSMutableArray。我是目标C的初学者，以前没有做过解析。问题是，该方法：
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
未按预期工作。点击我在代码中评论的异常断点后，该应用程序中断。我如何获得Verse和BibleWords的值并将其存储到某些NSArray/NSMutableArray/NSDictionary/NSMutableDictionary。请询问是否还有其他事情需要提及，以确定问题实际存在的位置。
编辑：
试过这样：
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
captureCharacters = NO;
[currentElementValue setString : @""];
if ([elementName isEqualToString:@"Table"]) { //set a break point here as well. The elementName is string and hence is not entering any of the conditions in this delegate method. Hence captureCharacters is always set to NO and nothing is working.
model = [[Model alloc]init];
}
else if ([elementName isEqualToString:@"Verse"]) {
capturingCharacters = yes;
}
else if ([elementName isEqualToString:@"BibleWords"]) {
capturingCharacters = yes;
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if(capturingCharacters) {
[currentElementValue appendString:string];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if ([elementName isEqualToString:@"Table"]) {
[array addObject : model];
model = nil;
}
else if ([elementName isEqualToString:@"Verse"]) { //set a break point here
model.Verse = currentElementValue; //not entering this condition
}
else if ([elementName isEqualToString:@"BibleWords"]) {
model.BibleWords = currentElementValue; //not entering this condition
}
}
它不工作，我对model.Verse和model.BibleWords越来越空值。 这些方法是如何工作的？
EDIT-2
模型接口：
//model.h
@protocol HttpRequestHandler <NSObject>
- (void)returnFromSiteParsedData:(NSMutableArray *)parsedData;
@end
@interface Model : NSObject <NSURLConnectionDelegate, NSXMLParserDelegate>
{
NSString *urlToLoad;
NSMutableURLRequest *requestSiteToSendData;
NSURLConnection *connectionToSiteToSendData;
NSString *verseText;
int verseNumber;
}
@property(nonatomic, retain) NSString *verseText;
@property(nonatomic, assign) int verseNumber;
- (void)loadSiteToSendDataWithChapterNumber:(int)chapterNumber AndBookNumber:(int)bookNumber;
@property(nonatomic, retain)id<HttpRequestHandler>httpRequestHandlerDelegate;
@end
模型实现
//model.m
@implementation Model
@synthesize verseNumber;
@synthesize verseText;
- (void)loadSiteToSendDataWithChapterNumber:(int)chapterNumber AndBookNumber:(int)bookNumber {
urlToLoad = [[NSString alloc]initWithFormat:@"http://www.webservicex.net/BibleWebservice.asmx/GetBibleWordsByBookTitleAndChapter?BookTitle=Genesis&chapter=1"];
requestSiteToSendData = [NSMutableURLRequest requestWithURL:[[NSURL alloc]initWithString:urlToLoad] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30];
connectionToSiteToSendData = [[NSURLConnection alloc]initWithRequest:requestSiteToSendData delegate:self];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
// Parse the XML into a dictionary
NSXMLParser *parser = [[NSXMLParser alloc]initWithData:data];
VBSParser *vbsParser = [[VBSParser alloc]initVBSParser];
[parser setDelegate:vbsParser];
BOOL success = [parser parse];
if (success) {
NSMutableArray *verses = [vbsParser verses];
NSLog(@"%@", verses);
NSLog(@"Number: %d\n Text: %@", verseNumber,verseText);
[self.httpRequestHandlerDelegate returnFromSiteParsedData:verses];
}
// Print the dictionary
}
@end
委托用于解析的数据返回到视图控制器。
请参阅我的编辑。 –
让我看看你的模型班 –
请参阅编辑。 –