实战——C++如何读取XML配置文件

所用函数等理论知识见博客：http://t.csdnimg.cn/p9OS2

实战目标：

读取内容如下的.xml文件

实战代码：

 首先需要搞定配置文件路径，这个功能不难，利用GetModuleFileNameA()、find_last_of()与substr()配合就可以得到，这里不赘述。至于这几个函数作用，见置顶博客。

得到配置文件路径后就可以读取啦。其中用到TinyXML库，如何使用参见博客：http://t.csdnimg.cn/9ts6C

函数实现如下：

void CParameter::GetParam(string strConfPath)
{
	TiXmlDocument myXML(strConfPath.c_str());
	if (!myXML.LoadFile())
	{
		LOG(INFO) << "请检查配置文件名与程序名称是否一致！" << endl;
		system("pause");
		return;
	}

	TiXmlElement* RootElement = myXML.RootElement();
	for (TiXmlElement* StuElement = RootElement->FirstChildElement(); StuElement != NULL; StuElement = StuElement->NextSiblingElement())
	{
		if (strcmp(StuElement->Value(), "PlatInfo") == 0)
		{
			for (TiXmlElement* ComElement = StuElement->FirstChildElement(); ComElement != NULL; ComElement = ComElement->NextSiblingElement())
			{
				PlatInfo stPlatInfo;
				memset(&stPlatInfo, 0x00, sizeof(stPlatInfo));
				stPlatInfo.nComNum = Helper::HConvert::ToNumber<int>(ComElement->Attribute("Number"));
				for (TiXmlElement* ItemElement = ComElement->FirstChildElement(); ItemElement != NULL; ItemElement = ItemElement->NextSiblingElement())
				{
					if (strcmp(ItemElement->Attribute("priority"), "ComProtocol") == 0)
					{
						stPlatInfo.nComProtocal = Helper::HConvert::ToNumber<int>(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "IpAddress") == 0)
					{
						stPlatInfo.strIpAddress = Helper::HConvert::ToString(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "Port") == 0)
					{
						stPlatInfo.nPort = Helper::HConvert::ToNumber<int>(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "CalPort") == 0)
					{
						stPlatInfo.nCalPort = Helper::HConvert::ToNumber<int>(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "StartAddress") == 0)
					{
						stPlatInfo.nStartAddress = Helper::HConvert::ToNumber<int>(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "platDirInvl") == 0)
					{
						stPlatInfo.nPlatDirInvl = Helper::HConvert::ToNumber<int>(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "PlatAngleStart") == 0)
					{
						stPlatInfo.strPlatAngleStart = Helper::HConvert::ToString(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "PlatAngleEnd") == 0)
					{
						stPlatInfo.strPlatAngleEnd = Helper::HConvert::ToString(ItemElement->Attribute("value"));
						continue;
					}
					if (strcmp(ItemElement->Attribute("priority"), "PlatInitialAngle") == 0)
					{
						stPlatInfo.strPlatInitialAngle = Helper::HConvert::ToString(ItemElement->Attribute("value"));
						continue;
					}
				}
				listPlat.push_back(stPlatInfo);
			}
			continue;
		}
	}
}