首先下载第三方运行库：https://sourceforge.net/projects/tinyxml/ 直接解压后将下列库文件添加到工程中即可。
#include #include "tinyxml.h" #include #include //#include using namespace std; class XMLFile { public: XMLFile(const char *xmlFileName); ~XMLFile(); public: void CreateXML();//创建XML文件 void ReadXML();//读取XML文件完整内容 void ReadDeclaration(string &version, string &encoding, string &standalone);//读取XML声明 bool FindNode(TiXmlElement *pRoot, const string nodeName, TiXmlElement *&pNode);//根据节点名，判断节点是否存在 bool GetNodeText(const string nodeName, const char *&text);//根据节点名，获取该节点文本 bool GetNodeAttribute(const string nodeName, map &mapAttribute);//获取根据节点名， 获取节点属性 bool DeleteNode(const string nodeName);//根据节点名，删除节点 bool modifyText(const string nodeName, const string text);//修改节点文本 bool modifyAttribution(const string nodeName, map &mapAttribute);//修改节点属性 bool AddNode(const string nodeName, const char * newNodeName, const char *text);//添加节点 private: char *m_xmlFileName; TiXmlDocument *m_pDocument; TiXmlDeclaration *m_pDeclaration; }; XMLFile::XMLFile(const char *xmlFileName) { m_xmlFileName = new char [20]; strcpy(m_xmlFileName, xmlFileName); m_pDocument = NULL; m_pDeclaration = NULL; } XMLFile::~XMLFile() { if (m_xmlFileName != NULL) delete m_xmlFileName; if (m_pDocument != NULL) delete m_pDocument; if (m_pDeclaration != NULL) delete m_pDeclaration; } void XMLFile::CreateXML() { //创建XML文档指针 m_pDocument = new TiXmlDocument(m_xmlFileName); if (NULL == m_pDocument) { return; } //声明XML m_pDeclaration = new TiXmlDeclaration("1.0", "UTF-8", ""); if (NULL == m_pDeclaration) { return; } m_pDocument->LinkEndChild(m_pDeclaration); //创建根节点 string xmlFileName = m_xmlFileName; string rootName = (xmlFileName.substr(0, xmlFileName.find(".")));//根节点元素名为文件名去掉.xml TiXmlElement *pRoot = new TiXmlElement(rootName.c_str()); if (NULL == pRoot) { return; } //关联XML文档，成为XML文档的根节点 m_pDocument->LinkEndChild(pRoot); TiXmlText *pText = new TiXmlText("学生表"); pRoot->LinkEndChild(pText); //创建孩子节点 TiXmlElement *pStudent = new TiXmlElement("Student"); if (NULL == pStudent) { return; } TiXmlText *pStuText = new TiXmlText("小学生"); pStudent->LinkEndChild(pStuText); pStudent->SetAttribute("id", 1); pStudent->SetAttribute("age", 18); pStudent->SetAttribute("name", "张三"); TiXmlElement *pYuWen = new TiXmlElement("YuWen"); TiXmlText *pYuWenText = new TiXmlText("98"); pYuWen->LinkEndChild(pYuWenText); TiXmlElement *pMathe = new TiXmlElement("Mathe"); TiXmlText *pMatheText = new TiXmlText("99"); pMathe->LinkEndChild(pMatheText); TiXmlElement *pEnglish = new TiXmlElement("English"); TiXmlText *pEnglishText = new TiXmlText("100"); pEnglish->LinkEndChild(pEnglishText); pStudent->LinkEndChild(pYuWen); pStudent->LinkEndChild(pMathe); pStudent->LinkEndChild(pEnglish); //关联根节点，成为根节点的孩子节点 pRoot->LinkEndChild(pStudent); m_pDocument->SaveFile(m_xmlFileName); } //读取XML文件完整内容 void XMLFile::ReadXML() { if (m_xmlFileName == NULL) { cout << " null " << endl; return; } m_pDocument->LoadFile(m_xmlFileName); m_pDocument->Print(); } //读取XML声明，例如： void XMLFile::ReadDeclaration(string &version, string &encoding, string &standalone) { m_pDocument->LoadFile(m_xmlFileName); TiXmlNode *pNode = m_pDocument->FirstChild(); if (NULL != pNode) { //获取声明指针 m_pDeclaration = pNode->ToDeclaration(); if (NULL != m_pDeclaration) { version = m_pDeclaration->Version(); encoding = m_pDeclaration->Encoding(); standalone = m_pDeclaration->Standalone(); } } } //根据节点名，判断节点是否存在 bool XMLFile::FindNode(TiXmlElement *pRoot, const string nodeName, TiXmlElement *&pNode) { const char *value = pRoot->Value(); if (strcmp(pRoot->Value(), nodeName.c_str()) == 0) { pNode = pRoot; return true; } TiXmlElement *p = pRoot; for (p = p->FirstChildElement(); p != NULL; p = p->NextSiblingElement()) { FindNode(p, nodeName, pNode); return true; } return false; } //根据节点名，获取该节点文本 bool XMLFile::GetNodeText(const string nodeName, const char *&text) { m_pDocument->LoadFile(m_xmlFileName); if (NULL == m_pDocument) { return false; } TiXmlElement *pRoot = m_pDocument->RootElement(); const char *value = pRoot->Value(); if (NULL == pRoot) { return false; } TiXmlElement *pNode = NULL; if (FindNode(pRoot, nodeName, pNode)) { text = pNode->GetText(); return true; } return false; } //获取根据节点名， 获取节点属性 bool XMLFile::GetNodeAttribute(const string nodeName, map &mapAttribute) { m_pDocument->LoadFile(m_xmlFileName); if (NULL == m_pDocument) { return false; } TiXmlElement *pRoot = m_pDocument->RootElement(); if (NULL == pRoot) { return false; } TiXmlElement *pNode = NULL; if (FindNode(pRoot, nodeName, pNode)) { TiXmlAttribute *pAttr = NULL; for (pAttr = pNode->FirstAttribute(); pAttr != NULL; pAttr = pAttr->Next()) { string name = pAttr->Name(); string value = pAttr->Value(); mapAttribute.insert(make_pair(name, value)); } return true; } return false; } //删除节点 bool XMLFile::DeleteNode(const string nodeName) { m_pDocument->LoadFile(m_xmlFileName); TiXmlElement *pRoot = m_pDocument->RootElement(); if (NULL == pRoot) { return false; } TiXmlElement *pNode = NULL; if (FindNode(pRoot, nodeName, pNode)) { if (pNode == pRoot) {//如果是根节点 m_pDocument->RemoveChild(pRoot); m_pDocument->SaveFile(m_xmlFileName); return true; } else {//子节点 TiXmlNode *parent = pNode->Parent();//找到该节点的父节点 if (NULL == parent) { return false; } TiXmlElement *parentElem = parent->ToElement(); if (NULL == parentElem) { return false; } parentElem->RemoveChild(pNode); m_pDocument->SaveFile(m_xmlFileName); return true; } } return false; } //修改节点文本 bool XMLFile::modifyText(const string nodeName, const string text) { m_pDocument->LoadFile(m_xmlFileName); TiXmlElement *pRoot = m_pDocument->RootElement(); if (NULL == pRoot) { return false; } TiXmlElement *pNode = NULL; if (FindNode(pRoot, nodeName, pNode)) { //pNode->Clear();//删除原节点下的其他元素 TiXmlText *pText = new TiXmlText(text.c_str()); pNode->LinkEndChild(pText); m_pDocument->SaveFile(m_xmlFileName); return true; } return false; } //修改节点属性 bool XMLFile::modifyAttribution(const string nodeName, map &mapAttribute) { m_pDocument->LoadFile(m_xmlFileName); TiXmlElement *pRoot = m_pDocument->RootElement(); if (NULL == pRoot) { return false; } TiXmlElement *pNode = NULL; if (FindNode(pRoot, nodeName, pNode)) { TiXmlAttribute *pAttr = pNode->FirstAttribute(); char *strName = NULL; for (; pAttr != NULL; pAttr = pAttr->Next()) { strName = const_cast(pAttr->Name()); for (auto it = mapAttribute.begin(); it != mapAttribute.end(); ++it) { if (strName == it->first) { pNode->SetAttribute(strName, it->second.c_str()); } } } m_pDocument->SaveFile(m_xmlFileName); return true; } return false; } //在名为nodeName的节点下插入子节点 bool XMLFile::AddNode(const string nodeName, const char * newNodeName, const char *text) { m_pDocument->LoadFile(m_xmlFileName); TiXmlElement *pRoot = m_pDocument->RootElement(); if (NULL == pRoot) { return false; } TiXmlElement *pNode = NULL; if (FindNode(pRoot, nodeName, pNode)) { TiXmlElement *pNewNode = new TiXmlElement(newNodeName); TiXmlText *pNewText = new TiXmlText(text); pNewNode->LinkEndChild(pNewText); pNode->InsertEndChild(*pNewNode); m_pDocument->SaveFile(m_xmlFileName); return true; } return false; } int main() { XMLFile xmlFile("StuInfo.xml"); xmlFile.CreateXML(); xmlFile.ReadXML(); //获取节点声明 string version; string encoding; string standalone; xmlFile.ReadDeclaration(version, encoding, standalone); cout << "version: " << version << endl << "encoding: " << encoding << endl << "standalone: " << standalone << endl; string nodeName = "Student"; //获取节点文本值 const char *strText = new char [20]; xmlFile.GetNodeText(nodeName, strText); cout << strText << endl; //获取节点属性值 map mapAttr; xmlFile.GetNodeAttribute(nodeName, mapAttr); for (auto it = mapAttr.begin(); it != mapAttr.end(); ++it) { cout << it->first << ": " << it->second << endl; } //删除节点 //xmlFile.DeleteNode(nodeName); //修改节点文本 string text = "三号学生"; xmlFile.modifyText(nodeName, text); //修改节点属性 mapAttr["name"] = "张小三"; xmlFile.modifyAttribution(nodeName, mapAttr); //添加节点 xmlFile.AddNode(nodeName, text.c_str(), "好"); system("pause"); return 0; }
