Iphone json解析xml

这个是一段xml文件，下面要做的是解析这个xml文件。

<pigletlist>
<piglet id="1">
<name>Nifnif</name>
</piglet>
<piglet id="2">
<name>Nufnuf</name>
</piglet>
<piglet id="3">
<name>Nafnaf</name>
</piglet>
</pigletlist>

这个是程序运行结果：

{

id = 1;

name = Nifnif;

},

{

id = 2;

name = Nufnuf;

},

{

id = 3;

name = Nafnaf;

}

)

// 初始化一个数组，将解析的数据放在数组里
NSMutableArray *res = [[NSMutableArray alloc] init];

// 加载当前文件，此时文件名字为piglets.xml
NSString *XMLPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"piglets.xml"];
NSData *XMLData = [NSData dataWithContentsOfFile:XMLPath];

//通过NSData方式创建CXMLDocument也可以通过字符串的方式，在这里就不说了
CXMLDocument *doc = [[[CXMLDocument alloc] initWithData:XMLData options:0 error:nil] autorelease];

//创建一个数组，以存放我们从xml中得到的节点

NSArray *nodes = NULL;
//寻找节点为piglet的所有节点

nodes = [doc nodesForXPath:@"//piglet" error:nil];

for (CXMLElement *node in nodes) {
NSMutableDictionary *item = [[NSMutableDictionary alloc] init];
int counter;
for(counter = 0; counter < [node childCount]; counter++) {
// 从节点中取出值，按照键值对存储在NSMutableDictionary
[item setObject:[[node childAtIndex:counter] stringValue] forKey:[[node childAtIndex:counter] name]];
}

// 取得节点属性值，并存储在NSMutableDictionary
[item setObject:[[node attributeForName:@"id"] stringValue] forKey:@"id"]; // <------ this magical arrow is pointing to the area of interest

[res addObject:item];
[item release];
}

// and we print our results
NSLog(@"%@", res);
[res release];

NSString * value = [[[node childAtIndex:counter] stringValue] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
if ([value length] != 0){
[item setObject:[[node childAtIndex:counter] stringValue] forKey:[[node childAtIndex:counter] localName]];

}