Qt 写Xml

转自QT4.86写中文XML
新建Qt空项目名称xml.pro
xml.pro

QT  += core gui xml

SOURCES += \
    main.cpp

main.cpp

#include <QtGui/QApplication>

#include <QTextCodec>
#include <QFile>
#include <QXmlStreamWriter>

int main()
{
    //QTextCodec::setCodecForCStrings(QTextCodec::codecForName("gb18030"));
    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("utf-8"));

    QFile file("test.xml");
    if(! file.open(QIODevice::ReadWrite))
        return 0;
    QXmlStreamWriter writer(&file);
    writer.setAutoFormatting(true);
    // 作用类似于创建一个xml文档，并在文档开头部分写入版本信息和编码信息。
    writer.writeStartDocument();//生成的文件开头标识仍是utf-8
    //writer.setCodec("gb18030");
    writer.setCodec("UTF-8");
    writer.writeStartElement("Start");
    writer.writeAttribute("animinal","cat");
    writer.writeTextElement("book","book1");
    writer.writeTextElement("book","中国");
    writer.writeEndElement();//Start
    writer.writeEndDocument();
    file.close();

    return 0;
}