13518219792
struct PUBLIC_DATA_SEND
{
bool ifrealtimedata;
bool ifdatasend;
bool confirmflag;
int sendtimes;
int sendtime;
QList waitconfirmterminal;
QList DateTimeList;
char capturetime[20];
}SEND;
int package_public_data(QDomDocument *doc, PUBLIC_DATA_SEND *ppublicdata, int client_num, int datatype, QDomElement *root, QDomElement *data)
{
QDomElement meters = doc->createElement("meters");
meters.setAttribute("total", "0");
QDomText textNode;
for ( int i = 0; i < 10; i++)
{
QDomElement meter = doc->createElement("meter");
meter.setAttribute("id", "445");
for ( int j = 0; j < 5; j++ )
{
QDomElement var = doc->createElement("var");
var.setAttribute("e", "");
var.setAttribute("e", "1");
textNode = doc->createTextNode("123.45864");
var.appendChild(textNode);
meter.appendChild(var);
}
meters.appendChild(meter);
}
meters.setAttribute("total", "10");
data->appendChild(meters);
return 0;
}
int publicdata_xm(int flag, PUBLIC_DATA_SEND *ppublicdata, char *buf, int client_num, char *name)
{
QDomDocument *doc = new QDomDocument();
QDomProcessingInstruction instruction;
QDomText textNode;
instruction = doc->createProcessingInstruction("xml","version=\"1.0\" encoding=\"UTF-8\"");
QDomElement root = doc->createElement("root");
QDomElement common = doc->createElement("common");
QDomElement building_id = doc->createElement("building_id");
QDomElement gateway_id = doc->createElement("gateway_id");
QDomElement type = doc->createElement("type");
QDomElement data = doc->createElement("data");
QDomElement time = doc->createElement("time");
doc->appendChild(root);
root.appendChild(common);
common.appendChild(building_id);
common.appendChild(gateway_id);
common.appendChild(type);
root.appendChild(data);
data.appendChild(time);
textNode = doc->createTextNode("125479601");
building_id.appendChild(textNode);
textNode = doc->createTextNode("99");
gateway_id.appendChild(textNode);
textNode = doc->createTextNode("energy_data");
type.appendChild(textNode);
QString datetime = "2017-03-13 15:50";
textNode = doc->createTextNode(datetime);
time.appendChild(textNode);
if ( flag == 1 )
{
data.setAttribute("operation", "report");
}
else if ( flag == 2 )
{
data.setAttribute("operation", "continuous");
}
else if ( flag == 3 )
{
data.setAttribute("operation", "history");
}
package_public_data(doc, ppublicdata, client_num, flag, &root, &data);
printf("publicdata xml:\n%s\n",QString::fromLocal8Bit(doc->toByteArray()).toUtf8().data());
int len = doc->toString().replace(QRegExp(">\\s+<"),"><").toLatin1().length();
strcpy(buf, doc->toString().replace(QRegExp(">\\s+<"),"><").toLatin1());
delete doc;
return len;
}
int main(int argc, char *argv[])
{
char buf[4096];
int len = 0;
len = publicdata_xm(1, &SEND, buf, 1, "dom");
printf("dom xml len = %d: \n%s\n", len, buf);
return 0;
} DOM格式的xml，使用内存大，建议使用在xml内容小的情况下，dom格式的xml为树状结构，可以随意删除修改xml
输出xml内容为
