Android开发笔记之Android中数据的存储方式（二）

package com.bokeyuan.createxml.domain;
/**
* 短信内容属性的JavaBean
* @author 
*
*/
public class Sms {
private String address;
private String date;
private String type;
private String body;
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getBody() {
return body;
}
public void setBody(String body) {
this.body = body;
}
public Sms(String address, String date, String type, String body) {
super();
this.address = address;
this.date = date;
this.type = type;
this.body = body;
}
@Override
public String toString() {
return "Sms [address=" + address + ", date=" + date + ", type=" + type
+ ", body=" + body + "]";
}
} 

package com.bokeyuan.createxml;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import com.bokeyuan.createxml.domain.Sms;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends Activity {
private List smslist;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
smslist = new ArrayList();
//假设10条短信
for (int i = 0; i <10; i++) {
Sms sms = new Sms("110" +i+i, System.currentTimeMillis() + "", "1", "你好，同志" +i);
smslist.add(sms);
}
}
public void onClick(View v){
//
StringBuffer sb = new StringBuffer();
//添加属性到sb中
sb.append("<&＃63;xml version=\"1.0\" encoding=\"utf-8\"&＃63;>");
sb.append("");
for (Sms sms : smslist) {
　　　　　　　sb.append("");
sb.append("
");
sb.append(sms.getAddress());
sb.append("
");
sb.append("");
sb.append(sms.getDate());
sb.append("");
sb.append("");
sb.append(sms.getType());
sb.append("");
sb.append("");
sb.append(sms.getBody());
sb.append("");
sb.append("");
}
sb.append("");
//写入外出储存路径
File file = new File("strorage/sdcard/sms.xml");
try {
FileOutputStream fos = new FileOutputStream(file);
fos.write(sb.toString().getBytes());
fos.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}