xml文件MFC解析

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于 2023-05-13 20:42:18 发布

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文章标签： c++ 算法 java

本文链接：https://blog.youkuaiyun.com/heroinsky/article/details/130662118

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该代码示例展示了一个C++程序，它使用TinyXML2库解析XML文件，从中提取LED设备的信息（如CCD，启用状态，标题和通道）以及通信设置（如通讯编号，波特率，数据位，停止位，奇偶校验和流控）。程序首先加载XML文件，然后遍历找到的元素，将数据存储在LedInfo结构体的向量中。

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#include <iostream>
#include <vector>
#include "tinyxml2.h"

using namespace std;
using namespace tinyxml2;

struct LedInfo {
int CCD;
bool enable;
string title;
int chn;
};

int main() {
vector<LedInfo> ledList;

XMLDocument doc;
doc.LoadFile("example.xml");

XMLElement* root = doc.FirstChildElement("LedList");
if (root == nullptr) {
cout << "Error: no LedList element found in XML file." << endl;
return 1;
}

// Parse communication settings
XMLElement* commSet = root->FirstChildElement("CommSet");
if (commSet != nullptr) {
int commNum = commSet->IntAttribute("CommNum", 0);
int rate = commSet->IntAttribute("rate", 0);
int data = commSet->IntAttribute("data", 0);
int stopbit = commSet->IntAttribute("stopbit", 0);
const char* parityStr = commSet->Attribute("parity");
bool parity = (parityStr != nullptr) && (strcmp(parityStr, "Yes") == 0);
const char* flowStr = commSet->Attribute("flow");
bool flow = (flowStr != nullptr) && (strcmp(flowStr, "Yes") == 0);

// Do something with the communication settings...
cout << "Communication settings: CommNum=" << commNum << ", rate=" << rate
<< ", data=" << data << ", stopbit=" << stopbit << ", parity=" << parity
<< ", flow=" << flow << endl;
}

// Parse Led elements
for (XMLElement* led = root->FirstChildElement(); led != nullptr; led = led->NextSiblingElement()) {
if (strcmp(led->Name(), "CommSet") == 0) {
// Skip CommSet element, since we've already parsed it
continue;
}

LedInfo info;
info.CCD = led->IntAttribute("CCD", 0);
info.enable = led->FirstChildElement("enable")->BoolText();
info.title = led->FirstChildElement("title")->GetText();
info.chn = led->FirstChildElement("chn")->IntText();

ledList.push_back(info);
}

// Do something with the Led information
for (const auto& led : ledList) {
cout << "Led CCD=" << led.CCD << ", enable=" << led.enable << ", title=" << led.title
<< ", chn=" << led.chn << endl;
}

return 0;
}