序列化器生成XML文件保存信息

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先是属性封装

public class Message {

private String body;

private String date;

private String address;

private String type;

public String getBody() {

return body;

}

public void setBody(String body) {

this.body = body;

}

public String getDate() {

return date;

}

public void setDate(String date) {

this.date = date;

}

public String getAddress() {

return address;

}

public void setAddress(String address) {

this.address = address;

}

public String getType() {

return type;

}

public void setType(String type) {

this.type = type;

}

public Message(String body, String date, String address, String type) {

super();

this.body = body;

this.date = date;

this.address = address;

this.type = type;

}

然后是序列化器生成XML存储信息

public class MainActivity extends Activity {

List<Message> smsList;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// 虚拟10条短信

smsList = new ArrayList<Message>();

for (int i = 0; i < 10; i++) {

Message sms = new Message("小志好棒" + i, System.currentTimeMillis()

+ "", "138" + i + i, "1");

smsList.add(sms);

}

public void click(View v){

//使用xml序列化器生成xml文件

//1.拿到序列化器对象

XmlSerializer xs = Xml.newSerializer();

//2.初始化

File file = new File("sdcard/sms2.xml");

try {

FileOutputStream fos = new FileOutputStream(file);

//enconding:指定用什么编码生成xml文件

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

//3.开始生成xml文件

//enconding:指定头结点中的enconding属性的值

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

xs.startTag(null, "message");

for (Message sms : smsList) {

xs.startTag(null, "sms");

xs.startTag(null, "body");

xs.text(sms.getBody() + "<body>");

xs.endTag(null, "body");

xs.startTag(null, "date");

xs.text(sms.getDate());

xs.endTag(null, "date");

xs.startTag(null, "type");

xs.text(sms.getType());

xs.endTag(null, "type");

xs.startTag(null, "address");

xs.text(sms.getAddress());

xs.endTag(null, "address");

xs.endTag(null, "sms");

}

xs.endTag(null, "message");

//告诉序列化器，文件生成完毕

xs.endDocument();

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

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