TouchXML 空节点值

Question

我正在尝试为 iPhone 应用程序（IOS5 xcode4.2）解析一些 XML，我已经放弃了 NSXMLParser，因为它很难到达任何地方。所以我选择了 touchXML，我能够从 Web 服务器中提取远程 XML 文件并查看节点名称，但这些节点的值是空白的请参阅下面的代码和示例 xml（我已经取出了很多数据）但是我做什么我想做的是获取一个 NSArray 或 NSDirectory ，其中包含所有统计数据的字符名称和子数组或 NSDirectory ，它们的键是统计数据的名称，值是值

<apiresponse>
  <character name="testname" ....>
    <vocation name="testvocation" ....>...</vocation>
    <stats>
     <stat name="health" value="1234"/>
     <stat name="power" value="4321"/>
    </stats>
    <equipment>
    </equipment>
  </character>

// Create a new xmlParser object based on the TouchXML "CXMLDocument" class, this is the
// object that actually grabs and processes the xml data
CXMLDocument *xmlParser = [[CXMLDocument alloc] initWithContentsOfURL:url options:0 error:nil];

// Create a new Array object to be used with the looping of the results from the xmlParser
NSArray *resultNodes = NULL;



// Set the resultNodes Array to contain an object for every instance of an  node in our xml
resultNodes = [xmlParser nodesForXPath:@"apiresponse/character" error:nil];



// Loop through the resultNodes to access each items actual data
    for (CXMLElement *resultElement in resultNodes) {

        // Create a temporary MutableDictionary to store the items fields in, which will eventually end up in stats
        NSMutableDictionary *stat = [[NSMutableDictionary alloc] init];

        // Create a counter variable as type "int"
        int counter;

        // Loop through the children of the current  node
        for(counter = 0; counter < [resultElement childCount]; counter++) {

            // Add each field to the stat Dictionary with the node name as key and node value as the value
            [stat setObject:[[resultElement childAtIndex:counter] stringValue] forKey:    [[resultElement childAtIndex:counter] name]];
        }

        // Add the stat to the global stats Array so that the view can access it.
        [self.stats addObject:[stat copy]];
    }
}

NSLog

2012-01-25 08:27:08.890 test[12815:f803] (
    {
    equipment = "";
    stats = "";
    vocation = "";
}
)

Answer 1

为了从节点中提取信息，您需要使用 - (CXMLNode *)attributeForName:(NSString *)name。我修改了您的代码以打印出所有所需的节点信息：

// Set the xml URL appropriately
NSURL *url = [NSURL URLWithString:@"file:///tmp/tmp.xml"];

// Create a new xmlParser object based on the TouchXML "CXMLDocument" class, this is the
// object that actually grabs and processes the xml data
CXMLDocument *xmlParser = [[CXMLDocument alloc] initWithContentsOfURL:url options:0 error:nil];

// Create a new Array object to be used with the looping of the results from the xmlParser
NSArray *resultNodes = NULL;

// Set the resultNodes Array to contain an object for every instance of an  node in our xml
resultNodes = [xmlParser nodesForXPath:@"apiresponse/character" error:nil];

// Loop through the resultNodes to access each items actual data
for (CXMLElement *resultElement in resultNodes)
{
    // Print out the initial character 'name' attribute
    NSLog(@"Name: %@, Attribute: %@", [resultElement localName], [[resultElement attributeForName:@"name"] stringValue]);

    // Loop through the children of the current  node
    for(int counter = 0; counter < [resultElement childCount]; counter++)
    {
        NSArray *children = [resultElement elementsForName:[[resultElement childAtIndex:counter] localName]];
        for(int secondcounter = 0; secondcounter < [children count]; secondcounter++)
        {
            CXMLElement *child = [children objectAtIndex:secondcounter];
            // Print out the subsequent layer's 'name' attributes
            NSLog(@"Name: %@, Attribute: %@", [child localName], [[child attributeForName:@"name"] stringValue]);

            // Special case for stats which have more children nodes
            if([[child localName] isEqualToString:@"stats"])
            {
                NSArray *grandchildren = [child elementsForName:@"stat"];

                for(int thirdcounter = 0; thirdcounter < [grandchildren count]; thirdcounter++)
                {
                    CXMLElement *grandchild = [grandchildren objectAtIndex:thirdcounter];
                    // Get all of the stats name's
                    NSLog(@"Name: %@, Attribute: %@", [grandchild localName], [[grandchild attributeForName:@"name"] stringValue]);
                }
            }
        }
    }
}

来自 NSLog：

2013-12-03 16:51:20.170 Validator[6520:707] Name: character, Attribute: testname
2013-12-03 16:51:20.171 Validator[6520:707] Name: vocation, Attribute: testvocation
2013-12-03 16:51:20.171 Validator[6520:707] Name: stats, Attribute: (null)
2013-12-03 16:51:20.171 Validator[6520:707] Name: stat, Attribute: health
2013-12-03 16:51:20.171 Validator[6520:707] Name: stat, Attribute: power
2013-12-03 16:51:20.172 Validator[6520:707] Name: equipment, Attribute: (null)