用的NSXMLParser

Question

解析我有這樣一個XML文件：

<name>Alberto</name> 
<subname>Martín</subname> 
<age>24</age> 

我想的NSXMLParser解析器，並將其保存數據：

NSString *name; 
NSString *subname; 
NSString *age; 

要做到這一點即時通訊使用：

-(void) parser:(NSXMLParser *) parser didStartElement:(NSString *) 
         elementName namespaceURI (NSString *) namespaceURI 
          qualifiedName:(NSString *) qName 
         attributes:(NSDictionary *) attributeDict { 

if([elementName isEqualToString:@"name"]) 
{ 
    if (!soapResults) 
    { 
     soapResults = [[NSMutableString alloc] init]; 

} 

    elementoEncontrado = YES; 
}} 

-(void)parser:(NSXMLParser *) parser foundCharacters:(NSString *)string{ 
if (elementoEncontrado) 
{ 
    [soapResults appendString: string]; 
} 
} 

-(void)parser:(NSXMLParser *)parser 
         didEndElement:(NSString *)elementName 
         namespaceURI:(NSString *)namespaceURI 
         qualifiedName:(NSString *)qName{ 

if ([elementName isEqualToString:@"name"]) 
{ 
    name=soapResults; 
} 
if ([elementName isEqualToString:@"subname"]) 
{ 
    subname=soapResults; 
} 
    if ([elementName isEqualToString:@"age"]) 
{ 
    age=soapResults; 
} 


NSLog(@"%@", name, subname, age); 

問題是子名和年齡從不出現...

Answer 1

您應該檢查這裏的所有元素，因爲您只爲name元素創建NSMutableString。

-(void) parser:(NSXMLParser *) parser didStartElement:(NSString *) 
        elementName namespaceURI (NSString *) namespaceURI 
         qualifiedName:(NSString *) qName 
        attributes:(NSDictionary *) attributeDict { 

    if([elementName isEqualToString:@"name"]) 
    { 
     if (!soapResults) 
     { 
      soapResults = [[NSMutableString alloc] init]; 
     } 

     elementoEncontrado = YES; 
    } 
} 

和發佈/零您soapResults這裏，以及設置你的elementoEncontrado到NO這裏

-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{ 

    if ([elementName isEqualToString:@"name"]) 
    { 
     // copy or retain this, unless ARC. 
     name=soapResults; 
    } 

    if ([elementName isEqualToString:@"subname"]) 
    { 
     subname=soapResults; 
    } 

    if ([elementName isEqualToString:@"age"]) 
    { 
     age=soapResults; 
    } 
    NSLog(@"%@", name, subname, age); 
    [soapResults release]; 
    soapResults = nil; 

    elementoEncontrado = NO; 
}