问题
How do I use touchXML to parse this XML? I want to store all the attributes as key/value pairs in a dictionary.
<Player PlayerName="Padraig HARRINGTON" CurrentPosition="1" CurrentRank="1"
Country="IRL" NumberOfHolesPlayed="18" ParRelativeScore="+3">
<RoundScore RoundNumber="1" Score="74" />
<RoundScore RoundNumber="2" Score="68" />
<RoundScore RoundNumber="3" Score="72" />
<RoundScore RoundNumber="4" Score="69" />
</Player>
<Player PlayerName="Ian POULTER" CurrentPosition="2" CurrentRank="2" Country="ENG"
NumberOfHolesPlayed="18" ParRelativeScore="+7">
<RoundScore RoundNumber="1" Score="72" />
<RoundScore RoundNumber="2" Score="71" />
<RoundScore RoundNumber="3" Score="75" />
<RoundScore RoundNumber="4" Score="69" />
</Player>
<Player PlayerName="Henrik STENSON" CurrentPosition="3" CurrentRank="T3" Country="SWE"
NumberOfHolesPlayed="18" ParRelativeScore="+9">
<RoundScore RoundNumber="1" Score="76" />
<RoundScore RoundNumber="2" Score="72" />
<RoundScore RoundNumber="3" Score="70" />
<RoundScore RoundNumber="4" Score="71" />
</Player>
I have no problem is the XML is formatted like so:
<Player>
<Country>UK</Country>
<NumberOfHolesPlayed>12</NumberOfHolesPlayed>
...
...
But I'm not sure what to do when dealing with attributes...
How can you get attributes with touchXML? In particular if a node has a subnode that also has attributes..
As per the first example XML file. In the first XML example I managed to get the Player attributes but not the child nodes 'RoundScore' attributes.
Would love a helping hand..
Thanks,
Dan
回答1:
For more information visit this post . I have given complete brief about it.
Yep ! solved your problem.
see, following code. Hope you understand. It's working for your requirement. I also have added - NSLog - Result - parsed.
-(void)methodForParsingPlayers{
NSMutableArray *ar=[[NSMutableArray alloc] init];
CXMLDocument *doc=[[[CXMLDocument alloc] initWithData:[NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Players" ofType:@"xml"]] options:0 error:nil] autorelease];
NSArray *nodes=nil;
nodes=[doc nodesForXPath:@"//Player" error:nil];
NSString *strValue;
NSString *strName;
for (CXMLElement *node in nodes) {
NSMutableDictionary *object=[[NSMutableDictionary alloc] init];
// process to set attributes of object ----------------------------------------
NSMutableDictionary *objectAttributes=[[NSMutableDictionary alloc] init];
NSArray *arAttr=[node attributes];
NSUInteger i, countAttr = [arAttr count];
for (i = 0; i < countAttr; i++) {
strValue=[[arAttr objectAtIndex:i] stringValue];
strName=[[arAttr objectAtIndex:i] name];
if(strValue && strName){
[objectAttributes setValue:strValue forKey:strName];
}
}
[object setValue:objectAttributes forKey:[node name]];
[objectAttributes release]; objectAttributes=nil;
// --------------------------------------------------------------------------------
// process to read elements of object ----------------------------------------
NSUInteger j, countElements = [node childCount];
CXMLNode *element;
NSMutableDictionary *elementDictionary=nil;
for (j=0; j<countElements; j++) {
element=[node childAtIndex:j];
elementDictionary=[[NSMutableDictionary alloc] init];
// process to read element attributes ----------------------------------
if([element isMemberOfClass:[CXMLElement class]]){
CXMLElement *element2=(CXMLElement*)element;
arAttr=[element2 attributes];
countAttr=[arAttr count];
for (i=0; i<countAttr; i++) {
strName=[[arAttr objectAtIndex:i] name];
strValue=[[arAttr objectAtIndex:i] stringValue];
if(strName && strValue){
[elementDictionary setValue:strValue forKey:strName];
}
}
}
// --------------------------------------------------------------------
// element value if available
strValue=[element stringValue];
if(strValue){
[elementDictionary setValue:strValue forKey:@"value"];
}
// ---------------------------------------------------------------------
// check if object/dictionary exists for this key "name"
strName=[element name];
if([object valueForKey:strName]){
if([[object valueForKey:strName] isKindOfClass:[NSMutableDictionary class]]){
NSMutableDictionary *d=[[NSMutableDictionary alloc] initWithDictionary:[object valueForKey:strName]];
NSMutableArray *arOFSameElementName=[[NSMutableArray alloc] initWithObjects:d,elementDictionary,nil];
[object setValue:arOFSameElementName forKey:strName];
[d release]; d=nil;
[arOFSameElementName release]; arOFSameElementName=nil;
} else {
NSMutableArray *arOFSameElementName=[object valueForKey:strName];
[arOFSameElementName addObject:elementDictionary];
}
} else {
[object setValue:elementDictionary forKey:strName];
}
[elementDictionary release]; elementDictionary=nil;
// ---------------------------------------------------------------------
}
[ar addObject:object];
[object release]; object=nil;
// --------------------------------------------------------------------------------
}
NSLog(@"%@",[ar description]);
}
2010-08-13 12:45:48.786 TouchTry[2850:207] (
{
Player = {
Country = IRL;
CurrentPosition = 1;
CurrentRank = 1;
NumberOfHolesPlayed = 18;
ParRelativeScore = "+3";
PlayerName = "Padraig HARRINGTON";
};
RoundScore = (
{
RoundNumber = 1;
Score = 74;
},
{
RoundNumber = 2;
Score = 68;
},
{
RoundNumber = 3;
Score = 72;
},
{
RoundNumber = 4;
Score = 69;
}
);
},
{
Player = {
Country = ENG;
CurrentPosition = 2;
CurrentRank = 2;
NumberOfHolesPlayed = 18;
ParRelativeScore = "+7";
PlayerName = "Ian POULTER";
};
RoundScore = (
{
RoundNumber = 1;
Score = 72;
},
{
RoundNumber = 2;
Score = 71;
},
{
RoundNumber = 3;
Score = 75;
},
{
RoundNumber = 4;
Score = 69;
}
);
},
{
Player = {
Country = SWE;
CurrentPosition = 3;
CurrentRank = T3;
NumberOfHolesPlayed = 18;
ParRelativeScore = "+9";
PlayerName = "Henrik STENSON";
};
RoundScore = (
{
RoundNumber = 1;
Score = 76;
},
{
RoundNumber = 2;
Score = 72;
},
{
RoundNumber = 3;
Score = 70;
},
{
RoundNumber = 4;
Score = 71;
}
);
}
)
回答2:
Use TBXML, its much easier and faster on working with XML files. Nice documentation also. Your problem with Attributes is easier solved here. http://www.tbxml.co.uk/TBXML/TBXML_Free.html
回答3:
I found out that you have to check the child nodes are CXElements. Sometimes they're CXMLNodes and these don't have attribute properties.
来源：https://stackoverflow.com/questions/981700/touchxml-parsing-xml-attributes