iOS - 解析后保存xml数据

时间:2013-04-01 16:02:27

标签: iphone ios xml xml-serialization nskeyedarchiver

这个问题可能是重复的问题。但我无法为我的问题找到合适的答案。

我从服务器下载了xml文件。

<INCIDENTTYPES>
    <INCIDENT FORMNAME="first" TEXT="First incident">
        <TYPE>Type1</TYPE>
        <TYPE>Type2</TYPE>
        <TYPE>Type3 Tag</TYPE>
        <TYPE>Type4 Tag</TYPE>
        <LOCATION>Council</LOCATION>
        <LOCATION>Domestic</LOCATION>
        <LOCATION>Commercial</LOCATION>
    </INCIDENT>
    <INCIDENT FORMNAME="second" TEXT="Second incident">
        <TYPE>Second type</TYPE>
        <TYPE>Second/first type</TYPE>
        <TYPE>Second3</TYPE>
        <LOCATION>Council</LOCATION>
        <LOCATION>Domestic</LOCATION>
        <LOCATION>Commercial</LOCATION>
    </INCIDENT>
</INCIDENTTYPES>

我正在使用RaptureXML来解析xml文件,解析可以按如下方式完成。

RXMLElement *rootXML = [RXMLElement elementFromXMLData:self.connectionData];            
    [rootXML iterate:@"INCIDENT" usingBlock: ^(RXMLElement *incidents) {

        if([[incidents attribute:@"FORMNAME"] isEqualToString:@"first"]){
            NSArray *listArray = [NSArray array];
            listArray = [incidents children:@"TYPE"];

            IncidentData *iData = [[IncidentData alloc] init];
            [iData.type setValue:listArray forKey:@"type"];

            NSData *data = [NSKeyedArchiver archivedDataWithRootObject:iData];
            [self.userDefault setObject:data forKey:@"firstObject"];
        }
    }

IncidentData类如下。

    #import "IncidentData.h"

    @implementation IncidentData

    - (id)initWithCoder:(NSCoder *)aDecoder{
        if (self = [super init]) {
//self.type is an array
            self.type = [aDecoder decodeObjectForKey:@"type"];

        }
        return self;
    }

    - (void)encodeWithCoder:(NSCoder *)aCoder{
        [aCoder encodeObject:self.type forKey:@"type"];
    }

    @end

我正在尝试按以下方式加载数据。

NSData *dd = [self.userDefault objectForKey:@"firstObject"];

IncidentData *items = (IncidentData *)[NSKeyedUnarchiver unarchiveObjectWithData:dd];
NSArray *typeArray = [items.type objectAtIndex:0];
NSLog(@"Incident type : %@", typeArray);

但是typeArray为null。

摘要:我正在尝试解析远程xml文件并将值保存到磁盘上并使用应用程序的后续阶段。

你可以帮我解决这个问题吗?

1 个答案:

答案 0 :(得分:1)

RaptureXML,RXMLElement可能不支持NSCoding 尝试代替:
listArray = [incidents children:@"TYPE"];
搭配:
listArray = [[incidents children:@"TYPE"] valueForKeyPath:@"text"];