我有一个非常简单的xml文件,名称为options.xml
<Dat>
<Name>Tom</Name>
<Option>1</Option>
</Dat>
使用NSXML,我试图将“Tom”更改为“Jim”并保存文件。我怎样才能做到这一点。我阅读了许多文档,没有直接的解决方案。有人可以帮我提供代码吗?
更新:我最终尝试使用Gdatasxml
-(void)saveToXML
{
NSString* path = [[NSBundle mainBundle] pathForResource:@"options" ofType:@"xml"];
NSData *xmlData = [[NSMutableData alloc] initWithContentsOfFile:path];
NSError *error;
GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithData:xmlData options:0 error:&error];
GDataXMLElement *rootElement = [GDataXMLElement elementWithName:@"Dat"];
NSArray *mySettings = [doc.rootElement elementsForName:@"Dat"];
for (GDataXMLElement *mySet in mySettings)
{
NSString *name;
NSArray *names = [mySet elementsForName:@"Name"];
if (names.count > 0)
{
GDataXMLElement *childElement = (GDataXMLElement *) [names objectAtIndex:0];
name = childElement.stringValue;
NSLog(childElement.stringValue);
[childElement setStringValue:@"Jim"];
}
}
[xmlData writeToFile:path atomically:YES];
}
但这并不保存数据。帮帮我。
最佳答案
在iOS中,编辑XML有点困难。您需要将原始xml解析为模型,然后形成xml。
您可以利用第三方数据库(例如GDataXML)从数据源中形成XML。
//Edited user info saved in a dictionary
NSDictionary *dictionary = @{@"Name": @"Jim", @"Option":@"1"};
GDataXMLElement *rootElement = [GDataXMLElement elementWithName:@"Dat"];
[dictionary enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
GDataXMLElement *element = [GDataXMLElement elementWithName:key stringValue:obj];
[rootElement addChild:element];
}];
//xml document is formed
GDataXMLDocument *document = [[GDataXMLDocument alloc]
initWithRootElement:rootElement];
NSData *xmlData = document.XMLData;
NSString *filePath = [self savedXMLPath];
//XML Data is written back to a filePath
[xmlData writeToFile:filePath atomically:YES];
关于iphone - XCODE NSXML更改元素值,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/17203494/