安卓基础Xml生成一个简单学生类和读取xml文件

//建立xml的序列器

XmlSerializer xs=Xml.newSerializer();

//使用安卓getFilesDir()方法存入本手机的路径,注意这里要抛异常

File file=new File(getFilesDir(),name1+".xml");

FileOutputStream os= new FileOutputStream(file);

xs.setOutput(os, "utf-8");

//有开始一定有结束

xs.startDocument("utf-8", true);

xs.startTag(null, "student");

xs.startTag(null, "name");

xs.text(name1);

xs.endTag(null, "name");

xs.startTag(null, "number");

xs.text(nummber1);

xs.endTag(null, "number");

xs.startTag(null, "sex");

xs.text(sex1);

xs.endTag(null, "sex");

xs.endTag(null, "student");

xs.endDocument();

os.close();

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//怎样读取xml文件

//使用pull解析方式

XmlPullParser xp=Xml.newPullParser();

FileInputStream fs=new FileInputStream(file);

xp.setInput(fs, "utf-8");

int type=xp.getEventType();

StringBuilder sb=new StringBuilder();

while(type != XmlPullParser.END_DOCUMENT){

if(type==XmlPullParser.START_TAG){

if("name".equals(xp.getName())){

sb.append("姓名 :"+xp.nextText() + "\n");

}else if("number".equals(xp.getName())){

sb.append("学号:"+xp.nextText()+"\n");

}else if("sex".equals(xp.getName())){

sb.append("性别" + xp.nextText() +"\n");

                  }

         }

type=xp.next();

}

fs.close();