Question

我正在开发一款需要使用XML文件的iPhone应用程序。我知道如何解析XML，现在我需要获取用户输入的信息，并将其写入xml（相同的或新的），我怎样才能实现它？

我查看谷歌和此处，但部分指南不是很清楚，有些是不赞成使用的方法..

Tnx的帮助！

Answer 1

创建一个NSMutableString *并以XML方式向其追加数据。

NSMutableString *xmlstring = [[NSMutableString alloc]init];
[xmlstring appendString:@"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"];
[xmlstring appendString:@"<RegistrationXml xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">\n"];
[xmlstring appendString:@"<DataFields>\n"];
[xmlstring appendString:@"<Name>FirstName</Name>\n"];
[xmlstring appendFormat:@"<Value>%@</Value>\n", [self replaceXMLReservedCharactersInString:someString]];
[xmlstring appendString:@"</DataFields>\n"];
[xmlstring appendString:@"</RegistrationXml>\n"];

其中

- (NSString *)replaceXMLReservedCharactersInString:(NSString *)string
{
    NSString *result;

    result = [string stringByReplacingOccurrencesOfString:@"&" withString:@"&amp;"];
    result = [result stringByReplacingOccurrencesOfString:@"<" withString:@"&lt;"];
    result = [result stringByReplacingOccurrencesOfString:@">" withString:@"&gt;"];

    return result;
}

然后通过它...... 如果要将其写入文件，请搜索NSFileManager。

Answer 2

我最后用过这个，

写入文件：

NSMutableString *xmlString = [[NSMutableString alloc]init];

    //Get all data into an NSMutableString
    [xmlString appendString:@"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"];
    [xmlString appendString:@"<CATALOG>"];
    [xmlString appendString:@"<USER Name=\""];
    [xmlString appendString:username];
    [xmlString appendString:@"\" FBid=\""];
    [xmlString appendString:facebookID];
    [xmlString appendString:@"\" email=\""];
    [xmlString appendString:email];
    [xmlString appendString:@"\"/>\n"];
    [xmlString appendString:@"</CATALOG>\n"];

//Write the NSMutableString into the xml file
NSString *savePath = [[NSBundle mainBundle]pathForResource:@"UserDetails" ofType:@"xml"];
[xmlString writeToFile:savePath atomically:YES encoding:NSUTF8StringEncoding error:nil];

写入XML文件 - howto？

2 个答案: