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解析XML的根元素与TBXML

2013-07-12 78 views
0

目前我使用TBXML解析XML服务有一个问题。解析XML的根元素与TBXML

目前....我这样做：

TBXML *configTBXML = [[TBXML alloc] initWithXMLData:[request responseData]]; 
TBXMLElement *root = configTBXML.rootXMLElement; 
TBXMLElement *cddDataElement = [TBXML childElementNamed:@"data" parentElement:root]; 

NSMutableArray *anArray = [[NSMutableArray alloc] init]; 


if ([TBXML valueOfAttributeNamed:@"timezone" forElement:cddDataElement]) { 

    NSString *key = [TBXML valueOfAttributeNamed:@"timezone" forElement:cddDataElement]; 
    [anArray addObject:key]; 
}

所以我发现..在XML文件中，确实没有根...

<data timezone="US/Pacific-New-GMT-8" dst="1" ts="11-07-13 19:08:39" time="11-07-13 19:08" sun="DAY" weblanguage="ENGLISH" datalivequeue_start="0" datalivequeue_stop="0" datalivequeue_cnt="0" alarmsqueue_first="226" alarmsqueue_last="51" dhcpstatus="6" gateway="OK" upgrade_portal="OK" data_portal="ERROR" msgdatalive="564" upgrequests="343"> 
<cdd macrf="00:12:4B:00:02:8A:E0:14" sn="764040" countryselected="2" countryname="USA 208V-60Hz" idmodel="764040-3M60-1513" pout_kW="0.0000" pout_W="0.00" etot_Wh=" 0.00" etot_kWh="0.000" co2_t=" 0.00" status="WARNING"><edd sn="957188" pn="-3L03-" type="edd" macrf="00:12:4B:00:02:6A:D6:27" wy="0413" x="1" y="1" fwmicro="0000" p1_ids="0000" fwdsp="0000" p1_idi="0000" fwrf="000" Etot_Wh=" 0.00" Etot_kWh="0.000" Vout_V="0.00" Iout_A="0.000" Pout_W="0.00" Pout_kW="0.0000" Freq_Hz="0.00" Vin_V="0.00" Tdsp_degC="0.00" Tmos_degC="0.00" Pin_W="n.a" Pin_kW="n.a" Iin_A="n.a" model="n.a" eddmid="n.a" cddid="n.a" modeldesc="MICRO-0.3" invstat="START-UP" booststat="START-UP" alarmstat="0" rssi="0" rssizero="0" rssicnt="0" rssiavg="0" msgcnt="0" samples="15" ts="01-01-00 00:00:00" dspalarm="0x0000" mcualarm="0x0000" mcuwarning="0x0000" CS_crc="0x0000"/><edd sn="xxxxxx" pn="xxxxxx" type="edd" macrf="00:12:4B:00:02:6F:01:2C" wy="xxxx" x="1" y="1" fwmicro="0000" p1_ids="0000" fwdsp="0000" p1_idi="0000" fwrf="000" Etot_Wh=" 0.00" Etot_kWh="0.000" Vout_V="0.00" Iout_A="0.000" Pout_W="0.00" Pout_kW="0.0000" Freq_Hz="0.00" Vin_V="0.00" Tdsp_degC="0.00" Tmos_degC="0.00" Pin_W="n.a" Pin_kW="n.a" Iin_A="n.a" model="n.a" eddmid="n.a" cddid="n.a" modeldesc="MICRO-0.25" invstat="START-UP" booststat="START-UP" alarmstat="0" rssi="0" rssizero="0" rssicnt="0" rssiavg="0" msgcnt="0" samples="15" ts="01-01-00 00:00:00" dspalarm="0x0000" mcualarm="0x0000" mcuwarning="0x0000" CS_crc="0x0000"/><edd sn="xxxxxx" pn="xxxxxx" type="edd" macrf="00:12:4B:00:02:6F:14:5A" wy="xxxx" x="1" y="1" fwmicro="0000" p1_ids="0000" fwdsp="0000" p1_idi="0000" fwrf="000" Etot_Wh=" 0.00" Etot_kWh="0.000" Vout_V="0.00" Iout_A="0.000" Pout_W="0.00" Pout_kW="0.0000" Freq_Hz="0.00" Vin_V="0.00" Tdsp_degC="0.00" Tmos_degC="0.00" Pin_W="n.a" Pin_kW="n.a" Iin_A="n.a" model="n.a" eddmid="n.a" cddid="n.a" modeldesc="MICRO-0.25" invstat="START-UP" booststat="START-UP" alarmstat="0" rssi="0" rssizero="0" rssicnt="0" rssiavg="0" msgcnt="0" samples="15" ts="01-01-00 00:00:00" dspalarm="0x0000" mcualarm="0x0000" mcuwarning="0x0000" CS_crc="0x0000"/></cdd></data>

对不起在可怕的格式化XML，但如果你发现......该文件的标题是...好..必要对我来说，提取......

现在如果我使用：

TBXMLElement *cddDataElement = [TBXML childElementNamed:@"data" parentElement:root];

我得到一个崩溃......我明白为什么becasue我访问的父元素，而子元素是不存在的...

所以我的问题是，我该如何访问这些值/根元素的键？

来源

2013-07-12 jsetting32

回答

1

解决的问题....我发现TBXML文档实际提取的每一个元素的属性和属性值，很简单，在这个函数...

随着使用的小C代码...

- (void) traverseElement:(TBXMLElement *)element { 
    do { 
     // Display the name of the element 
     NSLog(@"%@",[TBXML elementName:element]); 

     // Obtain first attribute from element 
     TBXMLAttribute * attribute = element->firstAttribute; 

     // if attribute is valid 
     while (attribute) { 
      // Display name and value of attribute to the log window 
      NSLog(@"%@->%@ = %@", [TBXML elementName:element], 
        [TBXML attributeName:attribute], 
        [TBXML attributeValue:attribute]); 

      // Obtain the next attribute 
      attribute = attribute->next; 

     } 

     // if the element has child elements, process them 
     if (element->firstChild) 
      [self traverseElement:element->firstChild]; 

     // Obtain next sibling element 
    } while ((element = element->nextSibling)); 
}

正如你所看到的，很多其实是存在的....递归，C-指针等 我让调用此方法像这样：

TBXML *configTBXML = [[TBXML alloc] initWithXMLData:[request responseData]]; 
    TBXMLElement *root = configTBXML.rootXMLElement; 
    if (root) { 
     [self traverseElement:root]; 
    }

氏s给出的输出：

2013-07-12 09:30:29.836 PowerOneApp[77609:3c07] data 
2013-07-12 09:30:29.837 PowerOneApp[77609:3c07] data->timezone = US/Pacific-New-GMT-8 
2013-07-12 09:30:29.837 PowerOneApp[77609:3c07] data->dst = 1 
2013-07-12 09:30:29.838 PowerOneApp[77609:3c07] data->ts = 12-07-13 09:30:32 
2013-07-12 09:30:29.838 PowerOneApp[77609:3c07] data->time = 12-07-13 09:30 
2013-07-12 09:30:29.838 PowerOneApp[77609:3c07] data->sun = DAY 
2013-07-12 09:30:29.838 PowerOneApp[77609:3c07] data->weblanguage = ENGLISH 
2013-07-12 09:30:29.838 PowerOneApp[77609:3c07] data->datalivequeue_start = 0 
2013-07-12 09:30:29.838 PowerOneApp[77609:3c07] data->datalivequeue_stop = 0 
2013-07-12 09:30:29.839 PowerOneApp[77609:3c07] data->datalivequeue_cnt = 0 
2013-07-12 09:30:29.839 PowerOneApp[77609:3c07] data->alarmsqueue_first = 229 
2013-07-12 09:30:29.839 PowerOneApp[77609:3c07] data->alarmsqueue_last = 51 
2013-07-12 09:30:29.839 PowerOneApp[77609:3c07] data->dhcpstatus = 6 
2013-07-12 09:30:29.839 PowerOneApp[77609:3c07] data->gateway = OK 
2013-07-12 09:30:29.839 PowerOneApp[77609:3c07] data->upgrade_portal = OK 
2013-07-12 09:30:29.840 PowerOneApp[77609:3c07] data->data_portal = ERROR 
2013-07-12 09:30:29.840 PowerOneApp[77609:3c07] data->msgdatalive = 564 
2013-07-12 09:30:29.841 PowerOneApp[77609:3c07] data->upgrequests = 357 
2013-07-12 09:30:29.841 PowerOneApp[77609:3c07] cdd 
2013-07-12 09:30:29.841 PowerOneApp[77609:3c07] cdd->macrf = 00:12:4B:00:02:8A:E0:14 
2013-07-12 09:30:29.841 PowerOneApp[77609:3c07] cdd->sn = 764040 
2013-07-12 09:30:29.841 PowerOneApp[77609:3c07] cdd->countryselected = 2 
2013-07-12 09:30:29.842 PowerOneApp[77609:3c07] cdd->countryname = USA 208V-60Hz 
2013-07-12 09:30:29.842 PowerOneApp[77609:3c07] cdd->idmodel = 764040-3M60-1513 
2013-07-12 09:30:29.842 PowerOneApp[77609:3c07] cdd->pout_kW = 0.0000 
2013-07-12 09:30:29.842 PowerOneApp[77609:3c07] cdd->pout_W = 0.00 
2013-07-12 09:30:29.843 PowerOneApp[77609:3c07] cdd->etot_Wh = 0.00 
2013-07-12 09:30:29.843 PowerOneApp[77609:3c07] cdd->etot_kWh = 0.000 
2013-07-12 09:30:29.843 PowerOneApp[77609:3c07] cdd->co2_t = 0.00 
2013-07-12 09:30:29.843 PowerOneApp[77609:3c07] cdd->status = ALARM 
2013-07-12 09:30:29.843 PowerOneApp[77609:3c07] edd 
2013-07-12 09:30:29.844 PowerOneApp[77609:3c07] edd->sn = 957188 
2013-07-12 09:30:29.844 PowerOneApp[77609:3c07] edd->pn = -3L03- 
2013-07-12 09:30:29.844 PowerOneApp[77609:3c07] edd->type = edd 
2013-07-12 09:30:29.844 PowerOneApp[77609:3c07] edd->macrf = 00:12:4B:00:02:6A:D6:27 
2013-07-12 09:30:29.845 PowerOneApp[77609:3c07] edd->wy = 0413 
2013-07-12 09:30:29.845 PowerOneApp[77609:3c07] edd->x = 1 
2013-07-12 09:30:29.845 PowerOneApp[77609:3c07] edd->y = 1 
2013-07-12 09:30:29.845 PowerOneApp[77609:3c07] edd->fwmicro = 0000 
2013-07-12 09:30:29.846 PowerOneApp[77609:3c07] edd->p1_ids = 0000 
2013-07-12 09:30:29.846 PowerOneApp[77609:3c07] edd->fwdsp = 0000 
2013-07-12 09:30:29.846 PowerOneApp[77609:3c07] edd->p1_idi = 0000 
2013-07-12 09:30:29.846 PowerOneApp[77609:3c07] edd->fwrf = 000 
2013-07-12 09:30:29.846 PowerOneApp[77609:3c07] edd->Etot_Wh = 0.00 
2013-07-12 09:30:29.847 PowerOneApp[77609:3c07] edd->Etot_kWh = 0.000 
2013-07-12 09:30:29.847 PowerOneApp[77609:3c07] edd->Vout_V = 0.00 
2013-07-12 09:30:29.847 PowerOneApp[77609:3c07] edd->Iout_A = 0.000 
2013-07-12 09:30:29.847 PowerOneApp[77609:3c07] edd->Pout_W = 0.00 
2013-07-12 09:30:29.848 PowerOneApp[77609:3c07] edd->Pout_kW = 0.0000 
2013-07-12 09:30:29.848 PowerOneApp[77609:3c07] edd->Freq_Hz = 0.00 
2013-07-12 09:30:29.848 PowerOneApp[77609:3c07] edd->Vin_V = 0.00 
2013-07-12 09:30:29.848 PowerOneApp[77609:3c07] edd->Tdsp_degC = 0.00 
2013-07-12 09:30:29.849 PowerOneApp[77609:3c07] edd->Tmos_degC = 0.00 
2013-07-12 09:30:29.849 PowerOneApp[77609:3c07] edd->Pin_W = n.a 
2013-07-12 09:30:29.849 PowerOneApp[77609:3c07] edd->Pin_kW = n.a 
2013-07-12 09:30:29.849 PowerOneApp[77609:3c07] edd->Iin_A = n.a 
2013-07-12 09:30:29.849 PowerOneApp[77609:3c07] edd->model = n.a 
2013-07-12 09:30:29.850 PowerOneApp[77609:3c07] edd->eddmid = n.a 
2013-07-12 09:30:29.850 PowerOneApp[77609:3c07] edd->cddid = n.a 
2013-07-12 09:30:29.850 PowerOneApp[77609:3c07] edd->modeldesc = MICRO-0.3 
2013-07-12 09:30:29.850 PowerOneApp[77609:3c07] edd->invstat = START-UP 
2013-07-12 09:30:29.851 PowerOneApp[77609:3c07] edd->booststat = START-UP 
2013-07-12 09:30:29.851 PowerOneApp[77609:3c07] edd->alarmstat = 1 
2013-07-12 09:30:29.851 PowerOneApp[77609:3c07] edd->rssi = 0 
2013-07-12 09:30:29.851 PowerOneApp[77609:3c07] edd->rssizero = 0 
2013-07-12 09:30:29.851 PowerOneApp[77609:3c07] edd->rssicnt = 0 
2013-07-12 09:30:29.852 PowerOneApp[77609:3c07] edd->rssiavg = 0 
2013-07-12 09:30:29.852 PowerOneApp[77609:3c07] edd->msgcnt = 0 
2013-07-12 09:30:29.852 PowerOneApp[77609:3c07] edd->samples = 15 
2013-07-12 09:30:29.852 PowerOneApp[77609:3c07] edd->ts = 01-01-00 00:00:00 
2013-07-12 09:30:29.853 PowerOneApp[77609:3c07] edd->dspalarm = 0x0000 
2013-07-12 09:30:29.853 PowerOneApp[77609:3c07] edd->mcualarm = 0x8000 
2013-07-12 09:30:29.853 PowerOneApp[77609:3c07] edd->mcuwarning = 0x0000 
2013-07-12 09:30:29.853 PowerOneApp[77609:3c07] edd->CS_crc = 0x0000 
2013-07-12 09:30:29.853 PowerOneApp[77609:3c07] edd 
2013-07-12 09:30:29.854 PowerOneApp[77609:3c07] edd->sn = xxxxxx 
2013-07-12 09:30:29.854 PowerOneApp[77609:3c07] edd->pn = xxxxxx 
2013-07-12 09:30:29.854 PowerOneApp[77609:3c07] edd->type = edd 
2013-07-12 09:30:29.854 PowerOneApp[77609:3c07] edd->macrf = 00:12:4B:00:02:6F:01:2C 
2013-07-12 09:30:29.855 PowerOneApp[77609:3c07] edd->wy = xxxx 
2013-07-12 09:30:29.855 PowerOneApp[77609:3c07] edd->x = 1 
2013-07-12 09:30:29.855 PowerOneApp[77609:3c07] edd->y = 1 
2013-07-12 09:30:29.855 PowerOneApp[77609:3c07] edd->fwmicro = 0000 
2013-07-12 09:30:29.856 PowerOneApp[77609:3c07] edd->p1_ids = 0000 
2013-07-12 09:30:29.856 PowerOneApp[77609:3c07] edd->fwdsp = 0000 
2013-07-12 09:30:29.856 PowerOneApp[77609:3c07] edd->p1_idi = 0000 
2013-07-12 09:30:29.856 PowerOneApp[77609:3c07] edd->fwrf = 000 
2013-07-12 09:30:29.857 PowerOneApp[77609:3c07] edd->Etot_Wh = 0.00 
2013-07-12 09:30:29.857 PowerOneApp[77609:3c07] edd->Etot_kWh = 0.000 
2013-07-12 09:30:29.857 PowerOneApp[77609:3c07] edd->Vout_V = 0.00 
2013-07-12 09:30:29.857 PowerOneApp[77609:3c07] edd->Iout_A = 0.000 
2013-07-12 09:30:29.857 PowerOneApp[77609:3c07] edd->Pout_W = 0.00 
2013-07-12 09:30:29.858 PowerOneApp[77609:3c07] edd->Pout_kW = 0.0000 
2013-07-12 09:30:29.858 PowerOneApp[77609:3c07] edd->Freq_Hz = 0.00 
2013-07-12 09:30:29.858 PowerOneApp[77609:3c07] edd->Vin_V = 0.00 
2013-07-12 09:30:29.858 PowerOneApp[77609:3c07] edd->Tdsp_degC = 0.00 
2013-07-12 09:30:29.859 PowerOneApp[77609:3c07] edd->Tmos_degC = 0.00 
2013-07-12 09:30:29.859 PowerOneApp[77609:3c07] edd->Pin_W = n.a 
2013-07-12 09:30:29.859 PowerOneApp[77609:3c07] edd->Pin_kW = n.a 
2013-07-12 09:30:29.859 PowerOneApp[77609:3c07] edd->Iin_A = n.a 
2013-07-12 09:30:29.859 PowerOneApp[77609:3c07] edd->model = n.a 
2013-07-12 09:30:29.860 PowerOneApp[77609:3c07] edd->eddmid = n.a 
2013-07-12 09:30:29.860 PowerOneApp[77609:3c07] edd->cddid = n.a 
2013-07-12 09:30:29.860 PowerOneApp[77609:3c07] edd->modeldesc = MICRO-0.25 
2013-07-12 09:30:29.860 PowerOneApp[77609:3c07] edd->invstat = START-UP 
2013-07-12 09:30:29.861 PowerOneApp[77609:3c07] edd->booststat = START-UP 
2013-07-12 09:30:29.861 PowerOneApp[77609:3c07] edd->alarmstat = 1 
2013-07-12 09:30:29.861 PowerOneApp[77609:3c07] edd->rssi = 0 
2013-07-12 09:30:29.861 PowerOneApp[77609:3c07] edd->rssizero = 0 
2013-07-12 09:30:29.862 PowerOneApp[77609:3c07] edd->rssicnt = 0 
2013-07-12 09:30:29.862 PowerOneApp[77609:3c07] edd->rssiavg = 0 
2013-07-12 09:30:29.862 PowerOneApp[77609:3c07] edd->msgcnt = 0 
2013-07-12 09:30:29.862 PowerOneApp[77609:3c07] edd->samples = 15 
2013-07-12 09:30:29.862 PowerOneApp[77609:3c07] edd->ts = 01-01-00 00:00:00 
2013-07-12 09:30:29.863 PowerOneApp[77609:3c07] edd->dspalarm = 0x0000 
2013-07-12 09:30:29.863 PowerOneApp[77609:3c07] edd->mcualarm = 0x8000 
2013-07-12 09:30:29.863 PowerOneApp[77609:3c07] edd->mcuwarning = 0x0000 
2013-07-12 09:30:29.863 PowerOneApp[77609:3c07] edd->CS_crc = 0x0000 
2013-07-12 09:30:29.864 PowerOneApp[77609:3c07] edd 
2013-07-12 09:30:29.864 PowerOneApp[77609:3c07] edd->sn = xxxxxx 
2013-07-12 09:30:29.864 PowerOneApp[77609:3c07] edd->pn = xxxxxx 
2013-07-12 09:30:29.864 PowerOneApp[77609:3c07] edd->type = edd 
2013-07-12 09:30:29.865 PowerOneApp[77609:3c07] edd->macrf = 00:12:4B:00:02:6F:14:5A 
2013-07-12 09:30:29.865 PowerOneApp[77609:3c07] edd->wy = xxxx 
2013-07-12 09:30:29.865 PowerOneApp[77609:3c07] edd->x = 1 
2013-07-12 09:30:29.865 PowerOneApp[77609:3c07] edd->y = 1 
2013-07-12 09:30:29.865 PowerOneApp[77609:3c07] edd->fwmicro = 0000 
2013-07-12 09:30:29.866 PowerOneApp[77609:3c07] edd->p1_ids = 0000 
2013-07-12 09:30:29.866 PowerOneApp[77609:3c07] edd->fwdsp = 0000 
2013-07-12 09:30:29.866 PowerOneApp[77609:3c07] edd->p1_idi = 0000 
2013-07-12 09:30:29.866 PowerOneApp[77609:3c07] edd->fwrf = 000 
2013-07-12 09:30:29.867 PowerOneApp[77609:3c07] edd->Etot_Wh = 0.00 
2013-07-12 09:30:29.867 PowerOneApp[77609:3c07] edd->Etot_kWh = 0.000 
2013-07-12 09:30:29.867 PowerOneApp[77609:3c07] edd->Vout_V = 0.00 
2013-07-12 09:30:29.867 PowerOneApp[77609:3c07] edd->Iout_A = 0.000 
2013-07-12 09:30:29.868 PowerOneApp[77609:3c07] edd->Pout_W = 0.00 
2013-07-12 09:30:29.868 PowerOneApp[77609:3c07] edd->Pout_kW = 0.0000 
2013-07-12 09:30:29.868 PowerOneApp[77609:3c07] edd->Freq_Hz = 0.00 
2013-07-12 09:30:29.868 PowerOneApp[77609:3c07] edd->Vin_V = 0.00 
2013-07-12 09:30:29.869 PowerOneApp[77609:3c07] edd->Tdsp_degC = 0.00 
2013-07-12 09:30:29.869 PowerOneApp[77609:3c07] edd->Tmos_degC = 0.00 
2013-07-12 09:30:29.869 PowerOneApp[77609:3c07] edd->Pin_W = n.a 
2013-07-12 09:30:29.869 PowerOneApp[77609:3c07] edd->Pin_kW = n.a 
2013-07-12 09:30:29.870 PowerOneApp[77609:3c07] edd->Iin_A = n.a 
2013-07-12 09:30:29.870 PowerOneApp[77609:3c07] edd->model = n.a 
2013-07-12 09:30:29.870 PowerOneApp[77609:3c07] edd->eddmid = n.a 
2013-07-12 09:30:29.870 PowerOneApp[77609:3c07] edd->cddid = n.a 
2013-07-12 09:30:29.870 PowerOneApp[77609:3c07] edd->modeldesc = MICRO-0.25 
2013-07-12 09:30:29.871 PowerOneApp[77609:3c07] edd->invstat = START-UP 
2013-07-12 09:30:29.871 PowerOneApp[77609:3c07] edd->booststat = START-UP 
2013-07-12 09:30:29.871 PowerOneApp[77609:3c07] edd->alarmstat = 1 
2013-07-12 09:30:29.871 PowerOneApp[77609:3c07] edd->rssi = 0 
2013-07-12 09:30:29.872 PowerOneApp[77609:3c07] edd->rssizero = 0 
2013-07-12 09:30:29.872 PowerOneApp[77609:3c07] edd->rssicnt = 0 
2013-07-12 09:30:29.872 PowerOneApp[77609:3c07] edd->rssiavg = 0 
2013-07-12 09:30:29.872 PowerOneApp[77609:3c07] edd->msgcnt = 0 
2013-07-12 09:30:29.873 PowerOneApp[77609:3c07] edd->samples = 15 
2013-07-12 09:30:29.873 PowerOneApp[77609:3c07] edd->ts = 01-01-00 00:00:00 
2013-07-12 09:30:29.873 PowerOneApp[77609:3c07] edd->dspalarm = 0x0000 
2013-07-12 09:30:29.873 PowerOneApp[77609:3c07] edd->mcualarm = 0x8000 
2013-07-12 09:30:29.874 PowerOneApp[77609:3c07] edd->mcuwarning = 0x0000 
2013-07-12 09:30:29.874 PowerOneApp[77609:3c07] edd->CS_crc = 0x0000

来源

2013-07-12 16:33:30 jsetting32

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