Question

我从我的服务器返回了这个相当复杂的XML，我想帮助将它解析为一个我可以访问的对象供以后使用。

这就是xml的样子

<Eng>
    <Result         >
        <Series         >
            <Link/>
            <FMF/>
                <AlsoLink/>
                <Plugins/>
            </FMF>
            <Sheet          >
                <Spaces>
                    <Spacing            >
                    <Names/>
                    </Spacing>
                    <Spacing            >
                    <Names/>
                    </Spacing>
                </Spaces>
            </Sheet>
        </Series>
    </Result>
</Eng>

然后我使用NSXMLParser尝试将xml中每个元素的所有“ObjectForKey / s”解析为他们自己的dictionarys ..如果这是有道理的。

这就是我的代码目前的样子

#pragma mark - Parsing lifecycle

- (void)startTheParsingProcess:(NSData *)parserData
{
    NSXMLParser *parser = [[NSXMLParser alloc] initWithData:parserData]; //parserData passed to NSXMLParser delegate which starts the parsing process
    [parser setDelegate:self];
    [parser parse]; // starts the event-driven parsing operation.
}

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    if([elementName isEqualToString:@"Series"]){
        parsedMutableDictionary = [[NSMutableDictionary alloc] initWithDictionary:attributeDict];
        self.parsedDataArrayOfDictionaries = [NSMutableArray arrayWithCapacity:8];

        if ([elementName isEqualToString:@"Link"]) {

        }
        if ([elementName isEqualToString:@"FMF"]) {
            if ([elementName isEqualToString:@"AlsoLink"]) {

            }
            else if ([elementName isEqualToString:@"Plugins"]) {

            }
        }
        else if ([elementName isEqualToString:@"Sheet"]) {

            if ([elementName isEqualToString:@"Spaces"]) {

                if ([elementName isEqualToString:@"Spacing"]) {

                    if ([elementName isEqualToString:@"Names"]) {

                    }
                }
            }

        }
    }

}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{    
    if([elementName isEqualToString:@"Series"]){
         [parsedDataArrayOfDictionaries addObject:parsedMutableDictionary];

        if ([elementName isEqualToString:@"Link"]) {

        }
        if ([elementName isEqualToString:@"FMF"]) {
            if ([elementName isEqualToString:@"AlsoLink"]) {

            }
            else if ([elementName isEqualToString:@"Plugins"]) {

            }
        }
        else if ([elementName isEqualToString:@"Sheet"]) {

            if ([elementName isEqualToString:@"Spaces"]) {

                if ([elementName isEqualToString:@"Spacing"]) {

                    if ([elementName isEqualToString:@"Names"]) {

                    }
                }
            }

        }
    }


//     parsedMutableDictionary = nil;
}

- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError
{
    NSLog(@"Paser Error = %@", parseError);
    UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:@"Error!" message:@"A parsing failure occurred." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [errorAlert show];
}


//TODO: Look into how to use this method over multiple views. i.e.(other requests such as keycode, advanced )
- (void)parserDidEndDocument:(NSXMLParser *)parser
{
    // display values
        NSArray *filteredArray = parsedDataArrayOfDictionaries;
        NSLog(@"%@", filteredArray);

}

我遇到的问题是我不明白我应该在他们自己的对象中拥有什么...当其中一些值返回时我可能有多个Spacing元素而我只是不知道如何处理... < / p>

任何帮助或提示都会非常受欢迎，如果我没有指明一些东西只是问，因为我的大脑正在努力解决这个问题。

感谢。

Answer 1

假设您的XML文件....

<Series element1="something" element2="something">
    <Spaces>
         <Spacing>
              <Names>
                 Something
              </Names>
         </Spacing>
         <Spacing>
              <Names>Something</Names>
         </Spacing>
    </Spaces>
</Series>

要获得element1的值，你必须做.....

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{   
    if([currentElement isEqualToString:@"Series"]) {
        NSLog(@"%@",[attributeDict objectForKey:@"element1"]);
    }
}

要获得间距的多个值，您必须执行....

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
    if([currentElement isEqualToString:@"name"]) {
       [currentSpacingName appendString:string];
       [currentSpacingName appendString:@"any character"]
    }
}

之后将该值存储到此方法中带有欲望键的字典中......

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

这只是一个例子，我希望你现在可以解决你的问题。

Answer 2

您正在使用NSXMLParser ....因此您将获得标记之间的字符串... <tag>strings</tag>

要获取多个Spacing元素，您可以将所有字符串附加到NSString对象中。

使用NSXMLParser解析复杂的XML结构

2 个答案: