XML序列化示例-优快云博客

本文介绍了一个使用Java在Android环境中创建XML文件的具体示例。通过MainActivity类，文章展示了如何生成包含短信信息的XML文件，并利用了XmlPull的XmlSerializer来完成序列化过程。

<span style="font-size:18px;">MainActivity  代码：</span>

<span style="font-size:18px;">package com.itheima.createxml;

import java.io.File;
import java.io.FileFilter;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlSerializer;

import com.itheima.createxml.domain.Sms;

import android.os.Bundle;
import android.app.Activity;
import android.util.Xml;
import android.view.Menu;
import android.view.View;

public class MainActivity extends Activity {

	List<Sms> smsList;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		smsList = new ArrayList<Sms>();
		for (int i = 0; i < 10; i++) {
			Sms sms = new Sms("你好" + i, System.currentTimeMillis(), 1, "138438");
			smsList.add(sms);
		}
	}

	public void click(View v){
//		StringBuffer sb = new StringBuffer();
//		sb.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
//		sb.append("<smss>");
//		
//		for (Sms sms : smsList) {
//			sb.append("<sms>");
//			
//			sb.append("<body>");
//			sb.append(sms.getBody()+"<body>");
//			sb.append("</body>");
//			
//			sb.append("<date>");
//			sb.append(sms.getDate());
//			sb.append("</date>");
//			
//			sb.append("<type>");
//			sb.append(sms.getType());
//			sb.append("</type>");
//			
//			sb.append("<address>");
//			sb.append(sms.getAddress());
//			sb.append("</address>");
//			
//			sb.append("</sms>");
//		}
//		
//		sb.append("</smss>");
//		
//		File file = new File("sdcard/sms.xml");
//		try {
//			FileOutputStream fos = new FileOutputStream(file);
//			fos.write(sb.toString().getBytes());
//		} catch (Exception e) {
//			// TODO Auto-generated catch block
//			e.printStackTrace();
//		}
		
		//获取xml序列化器
		XmlSerializer xs = Xml.newSerializer();
		File file = new File("sdcard/sms2.xml");
		FileOutputStream fos;
		try {
			fos = new FileOutputStream(file);
			//初始化
			//xml文件中什么编码生成
			xs.setOutput(fos, "utf-8");
			//开始生成xml文件
			//生成头结点
			xs.startDocument("utf-8", true);
			
			//生成开始标签
			xs.startTag(null, "smss");
			
			for (Sms sms : smsList) {
				xs.startTag(null, "sms");
				
				xs.startTag(null, "body");
				xs.text(sms.getBody() + "<body>");
				xs.endTag(null, "body");
				
				xs.startTag(null, "type");
				xs.text(sms.getType() + "");
				xs.endTag(null, "type");
				
				xs.startTag(null, "date");
				xs.text(sms.getDate() + "");
				xs.endTag(null, "date");
				
				xs.startTag(null, "address");
				xs.text(sms.getAddress());
				xs.endTag(null, "address");
				
				xs.endTag(null, "sms");
			}
			
			//生成结束标签
			xs.endTag(null, "smss");
			
			//告知序列化器生成xml结束
			xs.endDocument();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}
</span>

<span style="font-size:18px;">//////////////////////////////Sms.java  代码//////////////////////////</span>

<span style="font-size:18px;">package com.itheima.createxml.domain;


public class Sms {


private String body;
private long date;
private int type;
private String address;
public Sms(String body, long date, int type, String address) {
super();
this.body = body;
this.date = date;
this.type = type;
this.address = address;
}
public String getBody() {
return body;
}
public void setBody(String body) {
this.body = body;
}
public long getDate() {
return date;
}
public void setDate(long date) {
this.date = date;
}
public int getType() {
return type;
}
public void setType(int type) {
this.type = type;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}

}