问题描述

解析远程xml文件结果为空

解析远程的XML文件，然后将值保存到磁盘上。然后下面的步骤：

从服务器下载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>

然后用RaptureXML解析XML文件：

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

加载数据如下：

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返回空值。
请高手帮忙解答，谢谢

解决方案

可能是根本没有获取到内容吧。