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tiny xml解析

XML 2020-05-31

<1>XMLParse.h

#ifndef __MyEliminate__XMLParser__
#define __MyEliminate__XMLParser__

#include <stdio.h>
#include "cocos2d.h"
#include <fstream>

using namespace cocos2d;
using namespace std;

class XMLParser
{
public:
    ~XMLParser();
    static XMLParser *getXMLParser();
    
    void writeToDocPath();
    void levelXMLParser();
    void updateLevelXML(int level);
    
    void setCurrentStars(int stars);
    int getStars();
    
    void setLevel(int num);
    int getLevel();
    
private:
    XMLParser();
    
public:
    ValueVector m_unLockValueVector;
    
private:
    static XMLParser *m_xmlParser;
    static string m_levelDocPath;
    
    int m_stars;
    int m_level;  //本关卡过完，得到评价的星星数目，设置一下，然后根据数目调用updateLevelXML方法就会自动更新
public:
    void updateStarNumByNewStarNumAndLevel(int newStarNum,int level); //根据新的星星数目和关卡 来 更新关卡信息
    vector<int> _vecStars;
    int getStarNumByLevel(int level);  //得到某关以前获取的星星数目
public:
    void unlockLevel(int level);  //解锁level关卡
    
    CC_SYNTHESIZE(int,_score,score);
public:
    int countStarNum();  //统计所有关卡已经得到的分数
    int getGuanqiaNum();
    
};

#endif /* defined(__MyEliminate__XMLParser__) */

<2>XMLParse.cpp 
#include "XMLParser.h"
#include "tinyxml.h"

string XMLParser::m_levelDocPath;

XMLParser *XMLParser::m_xmlParser = NULL;
XMLParser *XMLParser::getXMLParser()
{
    if (m_xmlParser == NULL) {
        m_xmlParser = new XMLParser;
        m_levelDocPath = FileUtils::getInstance()->getWritablePath() + "level.xml";
        //m_levelDocPath = FileUtils::getInstance()->fullPathForFilename("level.xml"); //--jn
    }
    return m_xmlParser;
}

#pragma mark 将文件写入沙盒路径下
void XMLParser::writeToDocPath()
{
    string immutableXMLPath = FileUtils::getInstance()->fullPathForFilename("level.xml");
    if (!FileUtils::getInstance()->isFileExist(m_levelDocPath)) {
        string filePath = FileUtils::getInstance()->fullPathFromRelativeFile(immutableXMLPath,"");
//        long size;
        ssize_t size;
        char *pFileContent = (char *)FileUtils::getInstance()->getFileData(filePath,"r",&size);
        FILE *file = fopen(m_levelDocPath.c_str(),"w");
        
        if (file) {
            fputs(pFileContent,file);
            fclose(file);
        }
    }
}

#pragma mark 解析关卡
void XMLParser::levelXMLParser()
{
    m_unLockValueVector.clear();
    
    //
    _vecStars.clear();
    
    TiXmlDocument *myDocument = new TiXmlDocument(m_levelDocPath.c_str());
    myDocument->LoadFile();
    
    TiXmlElement *rootElememt = myDocument->RootElement(); //RSS
    
    TiXmlElement *levelsElement = rootElememt->FirstChildElement();  //Levels
    
    TiXmlElement *levelElement = levelsElement->FirstChildElement();  //level
    while (levelElement) {
        TiXmlElement *levelNameElement = levelElement->FirstChildElement();
        TiXmlElement *levelIDElement = levelNameElement->NextSiblingElement();
        TiXmlElement *unLockElement = levelIDElement->NextSiblingElement();
        
        //关卡解锁
        int unLock = atoi(unLockElement->GetText());
        m_unLockValueVector.push_back(Value(unLock));
        
        TiXmlElement *highestscoreElement = unLockElement->NextSiblingElement();
        TiXmlElement *starsElement = highestscoreElement->NextSiblingElement();
        
        //星星数目
        int stars = atoi(starsElement->GetText());
        _vecStars.push_back(stars);
        
        //下一个
        levelElement = levelElement->NextSiblingElement();
    }
    
    delete myDocument;
}

void XMLParser::updateLevelXML(int level)
{
    TiXmlDocument *myDocument = new TiXmlDocument(m_levelDocPath.c_str());
    myDocument->LoadFile();
    
    TiXmlElement *rootElememt = myDocument->RootElement();
    
    TiXmlElement *levelsElememt = rootElememt->FirstChildElement();
    
    TiXmlElement *levelElement = levelsElememt->FirstChildElement();
    while (levelElement) {
        TiXmlElement *levelNameElement = levelElement->FirstChildElement();
        TiXmlElement *levelIDElement = levelNameElement->NextSiblingElement();
        int levelID = atoi(levelIDElement->GetText());
        
        TiXmlElement *unLockElement = levelIDElement->NextSiblingElement();
        TiXmlElement *hightscoreElement = unLockElement->NextSiblingElement();
        TiXmlElement *starsElement = hightscoreElement->NextSiblingElement();
        int stars = atoi(starsElement->GetText());
        
        if (levelID == level && m_stars > stars) {
            char text[20];
            sprintf(text,"%d",m_stars);
            TiXmlText newText(text);
            TiXmlNode *oldNode = starsElement->FirstChild();
            starsElement->ReplaceChild(oldNode,newText);
            break;
        }
        
        levelElement = levelElement->NextSiblingElement();
    }
    
    myDocument->SaveFile();
    delete myDocument;
}

//星星数
void XMLParser::setCurrentStars(int stars)
{
    m_stars = stars;
}

int XMLParser::getStars()
{
    return m_stars;
}

//关卡
void XMLParser::setLevel(int num)
{
    m_level = num;
}

int XMLParser::getLevel()
{
    return m_level;
}

XMLParser::XMLParser()
{
    m_level = 1;
    _score = 0;
}

XMLParser::~XMLParser()
{
}

void XMLParser::updateStarNumByNewStarNumAndLevel(int newStarNum,int level){
    setCurrentStars(newStarNum);
    updateLevelXML(level);
}

int XMLParser::getStarNumByLevel(int level){
    CCAssert(level < (int)_vecStars.size(),"关卡越界");
    return _vecStars.at(level);
}

void XMLParser::unlockLevel(int level){
    TiXmlDocument *myDocument = new TiXmlDocument(m_levelDocPath.c_str());
    myDocument->LoadFile();
    TiXmlElement *rootElememt = myDocument->RootElement();
    TiXmlElement *levelsElememt = rootElememt->FirstChildElement();
    TiXmlElement *levelElement = levelsElememt->FirstChildElement();
    while (levelElement) {
        TiXmlElement *levelNameElement = levelElement->FirstChildElement();
        TiXmlElement *levelIDElement = levelNameElement->NextSiblingElement();
        int levelID = atoi(levelIDElement->GetText());
        
        TiXmlElement *unLockElement = levelIDElement->NextSiblingElement();
//        TiXmlElement *hightscoreElement = unLockElement->NextSiblingElement();
//        TiXmlElement *starsElement = hightscoreElement->NextSiblingElement();
        int unlock = atoi(unLockElement->GetText());
        
        if (levelID == level && unlock == 1) {
            char text[20];
            sprintf(text,0);
            TiXmlText newText(text);
            TiXmlNode *oldNode = unLockElement->FirstChild();
            unLockElement->ReplaceChild(oldNode,newText);
            break;
        }
        
        levelElement = levelElement->NextSiblingElement();
    }
    
    myDocument->SaveFile();
    delete myDocument;
}

int XMLParser::countStarNum(){
    int starNum = 0;
    
    TiXmlDocument *myDocument = new TiXmlDocument(m_levelDocPath.c_str());
    myDocument->LoadFile();
    
    TiXmlElement *rootElememt = myDocument->RootElement();
    
    TiXmlElement *levelsElememt = rootElememt->FirstChildElement();
    
    TiXmlElement *levelElement = levelsElememt->FirstChildElement();
    while (levelElement) {
        TiXmlElement *levelNameElement = levelElement->FirstChildElement();
        TiXmlElement *levelIDElement = levelNameElement->NextSiblingElement();
        int levelID = atoi(levelIDElement->GetText());
        
        TiXmlElement *unLockElement = levelIDElement->NextSiblingElement();
        TiXmlElement *hightscoreElement = unLockElement->NextSiblingElement();
        TiXmlElement *starsElement = hightscoreElement->NextSiblingElement();
        int stars = atoi(starsElement->GetText());
        
        if(!stars){
            break;  //如果某关卡得到的星星数为0，则后面的不再做检测了。
        }
        //统计星星
        starNum += stars;
        
        levelElement = levelElement->NextSiblingElement();
    }
    
    myDocument->SaveFile();
    delete myDocument;

    log("<<<当前所有关卡得到的星星总数是: %d",starNum);
    return starNum;
}


int XMLParser::getGuanqiaNum(){
    
    int guanqiaNum = 0;
    
    TiXmlDocument *myDocument = new TiXmlDocument(m_levelDocPath.c_str());
    myDocument->LoadFile();
    
    TiXmlElement *rootElememt = myDocument->RootElement();
    
    TiXmlElement *levelsElememt = rootElememt->FirstChildElement();
    
    TiXmlElement *levelElement = levelsElememt->FirstChildElement();
    while (levelElement) {
        guanqiaNum += 1;
        levelElement = levelElement->NextSiblingElement();
    }
    
    myDocument->SaveFile();
    delete myDocument;
    
    return guanqiaNum;

}
<3>例子1 
<Class name="计算机软件班">
    <Students>
        <student name="张三" studentNo="13031001" sex="男" age="22">
            <phone>88208888</phone>
            <address>西安市太白南路二号</address>
        </student>
        <student name="李四" studentNo="13031002" sex="男" age="20">
            <phone>88206666</phone>
            <address>西安市光华路</address>
        </student>
    </Students>
</Class>

#include <iostream>
#include <string>
#include <tinyxml.h>
using std::string;

int main()
{
  TiXmlDocument* myDocument = new TiXmlDocument();
  myDocument->LoadFile("Students.xml");
  TiXmlElement* rootElement = myDocument->RootElement();  //Class
  TiXmlElement* studentsElement = rootElement->FirstChildElement();  //Students
  TiXmlElement* studentElement = studentsElement->FirstChildElement();  //Students
  while ( studentElement ) {
    TiXmlAttribute* attributeOfStudent = studentElement->FirstAttribute();  //获得student的name属性
    while ( attributeOfStudent ) {
      std::cout << attributeOfStudent->Name() << " : " << attributeOfStudent->Value() << std::endl;
      attributeOfStudent = attributeOfStudent->Next();
    }
    TiXmlElement* phoneElement = studentElement->FirstChildElement();//获得student的phone元素
    std::cout << "phone" << " : " << phoneElement->GetText() << std::endl;
    TiXmlElement* addressElement = phoneElement->NextSiblingElement();
    std::cout << "address" << " : " << phoneElement->GetText() << std::endl;
    studentElement = studentElement->NextSiblingElement();
  }
  return 0;
}

name : 张三
studentNo : 13031001
sex : 男
age : 22
phone : 88208888
address : 88208888
name : 李四
studentNo : 13031002
sex : 男
age : 20
phone : 88206666
address : 88206666
<4>例子2 
string xmlString = 
            "<Class name=\"计算机软件班\">\
              <Students>\
                <student name=\"张三\" studentNo=\"13031001\" sex=\"男\" age=\"22\">\
                  <phone>88208888</phone>\
                  <address>西安市太白南路二号</address>\
                </student>\
                <student name=\"李四\" studentNo=\"13031002\" sex=\"男\" age=\"20\">\
                  <phone>88206666</phone>\
                  <address>西安市光华路</address>\
                </student>\
              </Students>\
            </Class>";
或者用parse方法进行解析
//
TiXmlDocument* myDocument = new TiXmlDocument();
myDocument->Parse(xmlString.c_str());

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