tinyxml2简单使用

引入头文件

<span style="font-size:18px;">#include "HelloWorldScene.h"
#include "tinyxml2/tinyxml2.h"
USING_NS_CC;
using namespace tinyxml2;</span>

生成xml

<span style="font-size:18px;">void HelloWorld::makeXml(const char* fileName)
{
    //写入路径
    std::string filePath = FileUtils::getInstance()->getWritablePath() + fileName;
    XMLDocument *pDoc = new XMLDocument();
    //头声明
    XMLDeclaration *pDecl = pDoc->NewDeclaration("xml=version=\"1.0\" encoding=\"UTF-8\"");
    pDoc->LinkEndChild(pDecl);
    //注释
    XMLComment *pCom = pDoc->NewComment("test xml");
    pDoc->LinkEndChild(pCom);

    XMLElement *plistEl = pDoc->NewElement("plist");
    plistEl->SetAttribute("version", "1.0");
    plistEl->SetAttribute("age", 10);
    pDoc->LinkEndChild(plistEl);

    XMLElement *dictEl = pDoc->NewElement("dict");
    plistEl->LinkEndChild(dictEl);

    XMLElement *keyEl = pDoc->NewElement("key");
    keyEl->LinkEndChild(pDoc->NewText("keyValue"));
    dictEl->LinkEndChild(keyEl);

    XMLElement *arrayEl = pDoc->NewElement("array");
    dictEl->LinkEndChild(arrayEl);
    for (int i = 0; i<2 ; i++)
    {
        XMLElement *nameEl = pDoc->NewElement("name");
        nameEl->LinkEndChild(pDoc->NewText("array value"));
        arrayEl->LinkEndChild(nameEl);
    }

    pDoc->SaveFile(filePath.c_str());
    pDoc->Print();
    delete pDoc;
}</span>

运行结果为：

<span style="font-size:18px;"><?xml=version="1.0" encoding="UTF-8"?>
<!--test xml-->
<plist version="1.0" age="10">
    <dict>
        <key>keyValue</key>
        <array>
            <name>array value</name>
            <name>array value</name>
        </array>
    </dict>
</plist></span>

读取xml：

void HelloWorld::parseXml(const char* fileName)
{
    std::string filePath = FileUtils::getInstance()->getWritablePath() + fileName;
    XMLDocument *pDoc = new XMLDocument();
    XMLError errorID = pDoc->LoadFile(filePath.c_str());
    if (errorID != 0)
    {
        return;
    }

    XMLElement *rootEl = pDoc->RootElement();
    const XMLAttribute *attribute = rootEl->FirstAttribute();
    while (attribute)
    {
        CCLOG("name=%s, value = %s", attribute->Name(), attribute->Value());
        attribute = attribute->Next();
    }

    XMLElement *dictEl = rootEl->FirstChildElement("dict");
    XMLElement *keyEl = dictEl->FirstChildElement("key");
    if (keyEl)
    {
        CCLOG("key el is = %s", keyEl->GetText());
    }

    XMLElement *arrayEl = keyEl->NextSiblingElement();
    XMLElement *childEl = arrayEl->FirstChildElement();
    while (childEl)
    {
        CCLOG("child el is = %s", childEl->GetText());
        childEl = childEl->NextSiblingElement();
    }

}

结果为：

cocos2d: name=version, value = 1.0
cocos2d: name=age, value = 10
cocos2d: key el is = keyValue
cocos2d: child el is = array value
cocos2d: child el is = array value

tinyxml2官网地址在：http://grinninglizard.com/tinyxml2docs/index.html