xml解析

由 ?﹏???ζ???﹏﹏? 创建， 最后一次修改 2016-09-08 CrossAppy已经加入了tinyxml2库用于xml解析。#include "CrossApp.h"时候已经包含tinyxml2.h无须再引入头文件，这样我们就能在开发时方便的生成和解析xml文件。xml文档生成命名空间using namespace tinyxml2;生成xml代码 //获得xml的保存路径 std::string filePath = CCFileUtils::sharedFileUtils()->getWritablePath() + "test.xml"; //在生成一个XMLDocument对象 tinyxml2::XMLDocument *pDoc = new tinyxml2::XMLDocument(); //xml 声明（参数可选） XMLDeclaration *pDel = pDoc->NewDeclaration("xml version=\"1.0\" encoding=\"UTF-8\""); //将pDel添加到XMLDocument对象中 pDoc->LinkEndChild(pDel); //添加plist节点 XMLElement *plistElement = pDoc->NewElement("plist"); //设置l版本 plistElement->SetAttribute("version", "1.0"); //将pDec添加到XMLDocument对象中 pDoc->LinkEndChild(plistElement); //添加一行注释 XMLComment *commentElement = pDoc->NewComment("this is xml comment"); //将注释添加到XMLDocument对象中 plistElement->LinkEndChild(commentElement); //添加dic节点 XMLElement *dicElement = pDoc->NewElement("dic"); plistElement->LinkEndChild(dicElement); //添加key节点 XMLElement *keyElement = pDoc->NewElement("key"); keyElement->LinkEndChild(pDoc->NewText("Text")); dicElement->LinkEndChild(keyElement); XMLElement *arrayElement = pDoc->NewElement("array"); dicElement->LinkEndChild(arrayElement); for (int i = 0; i<3; i++) { XMLElement *elm = pDoc->NewElement("name"); elm->LinkEndChild(pDoc->NewText("W3Cschool")); arrayElement->LinkEndChild(elm); } pDoc->SaveFile(filePath.c_str()); CCLog("path:%s", filePath.c_str()); pDoc->Print(); delete pDoc;生成XML如下：<?xml version="1.0" encoding="UTF-8"?><plist version="1.0"><!--this is xml comment--><dic> <key>Text</key> <array> <name>W3Cschool </name> <name>W3Cschool </name> <name>W3Cschool </name> </array></dic></plist>解析XML下面我们就来解析一下上面生成的XML文档解析代码： //解析xml的路径 std::string filePath = CCFileUtils::sharedFileUtils()->getWritablePath() + "test.xml"; //生成一个XMLDocument对象 tinyxml2::XMLDocument *pDoc = new tinyxml2::XMLDocument(); //将xml文件读取到XMLDocument对象中 XMLError errorId = pDoc->LoadFile(filePath.c_str()); if (errorId != 0) { //xml格式错误 return; } XMLElement *rootEle = pDoc->RootElement(); //获取第一个节点属性 const XMLAttribute *attribute = rootEle->FirstAttribute(); //打印节点属性名和值 CCLog("attribute_name = %s,attribute_value = %s", attribute->Name(), attribute->Value()); XMLElement *dicEle = rootEle->FirstChildElement("dic"); XMLElement *keyEle = dicEle->FirstChildElement("key"); if (keyEle) { CCLog("keyEle Text= %s", keyEle->GetText()); } XMLElement *arrayEle = keyEle->NextSiblingElement(); XMLElement *childEle = arrayEle->FirstChildElement(); while (childEle) { CCLog("childEle Text= %s", childEle->GetText()); childEle = childEle->NextSiblingElement(); } delete pDoc;打印结果：attribute_name = version,attribute_value = 1.0 keyEle Text= Text childEle Text= W3Cschool childEle Text= W3Cschool childEle Text= W3Cschool注意：tinyxml在android上解析assert文件夹下会有问题,解决方式如下：unsigned long nSize = 0; std::string fullPath = CCFileUtils::sharedFileUtils()->fullPathForFilename("test.xml"); unsigned char* pBuffer = CCFileUtils::sharedFileUtils()->getFileData(fullPath.c_str(), "rb", &nSize); tinyxml2::XMLDocument xmlDoc; xmlDoc.Parse((const char *)pBuffer);