xcode NSXMLParser 无法解析特殊字符（重音）
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10215221/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
NSXMLParser can't parse special characters (accents)
提问by Andrew Davis
I'm using NSXMLParser to parse an xml from a url (my code is almost exactly the same as here)
我正在使用 NSXMLParser 从 url 解析 xml（我的代码几乎与此处完全相同）
Some of the elements contain special characters like "á" which causes a word lik ándre to split into two (á and ndre).
某些元素包含特殊字符，例如“á”，这会导致单词 lik ándre 分裂为两个（á 和 ndre）。
Here is my loadXMLByURL
这是我的 loadXMLByURL
-(id) loadXMLByURL:(NSString *)urlString{
tickets = [[NSMutableArray alloc] init];
NSURL *url = [NSURL URLWithString:urlString];
NSData *data = [[NSData alloc] initWithContentsOfURL:url];
parser = [[NSXMLParser alloc] initWithData:data];
parser.delegate = self;
[parser parse];
return self;}
I'm pretty sure it's because the encoding is not set (I think it needs to be NSUTF8StringEncoding) but I'm not sure where/how to apply it.
我很确定这是因为未设置编码（我认为它需要是 NSUTF8StringEncoding）但我不确定在哪里/如何应用它。
[UPDATE] Rest of my code...
[更新] 我的其余代码...
- (void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if ([elementname isEqualToString:@"ticket"])
{
currentTicket = [Ticket alloc];
}
}
- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if ([elementname isEqualToString:@"name"])
{
currentTicket.name = currentNodeContent;
}
else if ([elementname isEqualToString:@"title"])
{
currentTicket.title = currentNodeContent;
}
else if ([elementname isEqualToString:@"status"])
{
currentTicket.status = currentNodeContent;
}
else if ([elementname isEqualToString:@"ticket"])
{
[tickets addObject:currentTicket];
[currentTicket release];
currentTicket = nil;
[currentNodeContent release];
currentNodeContent = nil;
}
}
- (void) parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
currentNodeContent = (NSMutableString *) [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
}
[UPDATE 2] Sample xml...
[更新 2] 示例 xml...
<RB>
<list>
<ticket>
<name>Andrew Ford</name>
<title>3rd release</title>
<status>1</status>
</ticket>
<ticket>
<name>David Jenkins</name>
<title>3rd release</title>
<status>0</status>
</ticket>
<ticket>
<name>Luis gomez ándre</name>
<title>3rd release</title>
<status>1</status>
</ticket>
</list>
</RB>
采纳答案by Jeff Wolski
I would load the url to an NSStringand then convert like this.
我会将 url 加载到 anNSString然后像这样转换。
-(id) loadXMLByURL:(NSString *)urlString{
tickets = [[NSMutableArray alloc] init];
NSURL *url = [NSURL URLWithString:urlString];
NSError *error;
NSString * dataString = [[NSString alloc] initWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error];
NSData *data = [dataString dataUsingEncoding:NSUTF8StringEncoding];
parser = [[NSXMLParser alloc] initWithData:data];
parser.delegate = self;
[parser parse];
return self;
}
EDIT:
Part of the problem may be that your parser:foundCharacters:method is assigning to your currentNodeContentinstead of appending. See the Apple Doc at the following link.
编辑：部分问题可能是您的parser:foundCharacters:方法正在分配给您currentNodeContent而不是附加。请参阅以下链接中的 Apple 文档。
From the doc:
从文档：
Because string may be only part of the total character content for the current element, you should append it to the current accumulation of characters until the element changes.
因为字符串可能只是当前元素总字符内容的一部分，所以您应该将其附加到当前的字符累积中，直到元素发生变化。
回答by Hyman Solomon
Found the problem! It is indeed in found characters. You should change your code to this:
发现问题了！它确实是在找到的字符中。您应该将代码更改为：
- (void) parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
NSLog(@"found characters: %@", string);
if (!currentNodeContent) {
currentNodeContent = [[NSMutableString alloc] init];
}
[currentNodeContent appendString:string];
}
I was having the same problem before, and the above code has fixed it.
我之前也遇到过同样的问题，上面的代码已经解决了。
回答by Raymond Wang
Use
用
NSData *data = [dataString dataUsingEncoding:NSUTF8StringEncoding];
and to get the string from it, do this:
并从中获取字符串，请执行以下操作：
NSString *theXML = [[NSString alloc] initWithBytes:[data mutableBytes]
length:[data length]
encoding:NSUTF8StringEncoding];
Then you can parse the xml in your NSXMLParserDelegate methods.
然后你可以在你的 NSXMLParserDelegate 方法中解析 xml。
Hope this helps.
希望这可以帮助。
