关于 android xmlSerializer 的问题

package com.pro.XMLHandle;



import java.io.StringWriter;



import org.xmlpull.v1.XmlPullParserFactory;

import org.xmlpull.v1.XmlSerializer;



import android.util.Log;



import com.pro.entity.PhotoInfo;



public class XMLInfoAdder {



	private StringWriter stringWriter;

	private XmlPullParserFactory factory;

	private XmlSerializer xmlSerializer;



	public String addPhotoInfo(PhotoInfo photoInfo) {



		try {

			stringWriter = new StringWriter();

			factory = XmlPullParserFactory.newInstance();

			xmlSerializer = factory.newSerializer();

			xmlSerializer.setOutput(stringWriter);

			String[] tags = new String[] { "photo", "street", "building",

					"direction", "describe" };

			Log.i("myInfo", photoInfo.getPhoto() + photoInfo.getStreet()

					+ photoInfo.getBuilding() + photoInfo.getDirection()

					+ photoInfo.getDescribe());

			String[] texts = new String[] { photoInfo.getPhoto(),

					photoInfo.getStreet(), photoInfo.getBuilding(),

					photoInfo.getDirection(), photoInfo.getDescribe() };

			xmlSerializer.startTag(null, "photoInfo");

			for (int i = 0; i < tags.length; i++) {

				Log.i("myInfo", i + "");

				xmlSerializer.startTag(null, tags[i]);

				xmlSerializer.text(texts[i]);

				xmlSerializer.endTag(null, tags[i]);

			}

			xmlSerializer.endTag(null, "photoInfo");



		} catch (Exception e) {

			e.printStackTrace();

		}

		System.out.println(stringWriter.toString());

		return stringWriter.toString();

	}



	public String addXMLHead() {

		try {

			stringWriter = new StringWriter();

			factory = XmlPullParserFactory.newInstance();

			xmlSerializer = factory.newSerializer();

			xmlSerializer.setOutput(stringWriter);



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

			xmlSerializer

					.startTag("http://picture_world.pro.com", "photoInfos");



		} catch (Exception e) {

			e.printStackTrace();

		}

		return stringWriter.toString();

	}



	public String addXMLTail() {

		try {

			stringWriter = new StringWriter();

			factory = XmlPullParserFactory.newInstance();

			xmlSerializer = factory.newSerializer();

			xmlSerializer.setOutput(stringWriter);



			xmlSerializer.endTag(null, "photoInfos");

			xmlSerializer.endDocument();



		} catch (Exception e) {

			e.printStackTrace();

		}

		return stringWriter.toString();

	}



}

补充：移动开发 ,  Android

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