Android 实现短信的备份恢复

1.短信备份

package com.su.smsbackuprestore.operatesms;    import java.io.File;  import java.io.FileNotFoundException;  import java.io.FileOutputStream;  import java.io.PrintWriter;  import java.text.SimpleDateFormat;  import java.util.Date;    import org.dom4j.Document;  import org.dom4j.DocumentHelper;  import org.dom4j.Element;  import org.xmlpull.v1.XmlSerializer;      import android.content.ContentResolver;  import android.content.Context;  import android.database.Cursor;  import android.database.sqlite.SQLiteException;  import android.net.Uri;  import android.os.Environment;  import android.util.Log;  import android.util.Xml;  import android.widget.Toast;    public class ExportSmsXml {   Context context;   public static final String SMS_URI_ALL = "content://sms/";   private FileOutputStream outStream = null;   private XmlSerializer serializer;     public ExportSmsXml(Context context) {    this.context = context;   }     public void xmlStart() {      String path = Environment.getExternalStorageDirectory().getPath() + "/SMSBackup";    File file = new File(path);    if (!file.exists()) {     file.mkdirs();    }    File file2 = new File(path, "message.xml");    try {     outStream = new FileOutputStream(file2);     serializer = Xml.newSerializer();     serializer.setOutput(outStream, "UTF-8");     serializer.startDocument("UTF-8", true);     serializer.startTag(null, "sms");         } catch (Exception e) {     e.printStackTrace();    }   }     public boolean createXml() throws Exception {      this.xmlStart();    Cursor cursor = null;    try {     ContentResolver conResolver = context.getContentResolver();     String[] projection = new String[] { SmsField.ADDRESS, SmsField.PERSON, SmsField.DATE, SmsField.PROTOCOL,               SmsField.READ, SmsField.STATUS, SmsField.TYPE, SmsField.REPLY_PATH_PRESENT,              SmsField.BODY,SmsField.LOCKED,SmsField.ERROR_CODE, SmsField.SEEN }; // type=1是收件箱，==2是发件箱;read=0表示未读，read=1表示读过，seen=0表示未读，seen=1表示读过     Uri uri = Uri.parse(SMS_URI_ALL);     cursor = conResolver.query(uri, projection, null, null, "_id asc");     if (cursor.moveToFirst()) {      // 查看数据库sms表得知 subject和service_center始终是null所以这里就不获取它们的数据了。      String address;      String person;      String date;      String protocol;      String read;      String status;      String type;      String reply_path_present;      String body;      String locked;      String error_code;      String seen;      do {       // 如果address == null，xml文件中是不会生成该属性的,为了保证解析时，属性能够根据索引一一对应，必须要保证所有的item标记的属性数量和顺序是一致的       address = cursor.getString(cursor.getColumnIndex(SmsField.ADDRESS));       if (address == null) {        address = "";       }       person = cursor.getString(cursor.getColumnIndex(SmsField.PERSON));       if (person == null) {        person = "";       }       date = cursor.getString(cursor.getColumnIndex(SmsField.DATE));       if (date == null) {        date = "";       }       protocol = cursor.getString(cursor.getColumnIndex(SmsField.PROTOCOL));       if (protocol == null) {// 为了便于xml解析        protocol = "";       }       read = cursor.getString(cursor.getColumnIndex(SmsField.READ));       if (read == null) {        read = "";       }       status = cursor.getString(cursor.getColumnIndex(SmsField.STATUS));       if (status == null) {        status = "";       }       type = cursor.getString(cursor.getColumnIndex(SmsField.TYPE));       if (type == null) {        type = "";       }       reply_path_present = cursor.getString(cursor.getColumnIndex(SmsField.REPLY_PATH_PRESENT));       if (reply_path_present == null) {// 为了便于XML解析        reply_path_present = "";       }       body = cursor.getString(cursor.getColumnIndex(SmsField.BODY));       if (body == null) {        body = "";       }       locked = cursor.getString(cursor.getColumnIndex(SmsField.LOCKED));       if (locked == null) {        locked = "";       }       error_code = cursor.getString(cursor.getColumnIndex(SmsField.ERROR_CODE));       if (error_code == null) {        error_code = "";       }       seen = cursor.getString(cursor.getColumnIndex(SmsField.SEEN));       if (seen == null) {        seen = "";       }       // 生成xml子标记       // 开始标记       serializer.startTag(null, "item");       // 加入属性       serializer.attribute(null, SmsField.ADDRESS, address);       serializer.attribute(null, SmsField.PERSON, person);       serializer.attribute(null, SmsField.DATE, date);       serializer.attribute(null, SmsField.PROTOCOL, protocol);       serializer.attribute(null, SmsField.READ, read);       serializer.attribute(null, SmsField.STATUS, status);       serializer.attribute(null, SmsField.TYPE, type);       serializer.attribute(null, SmsField.REPLY_PATH_PRESENT, reply_path_present);       serializer.attribute(null, SmsField.BODY, body);       serializer.attribute(null, SmsField.LOCKED, locked);       serializer.attribute(null, SmsField.ERROR_CODE, error_code);       serializer.attribute(null, SmsField.SEEN, seen);       // 结束标记       serializer.endTag(null, "item");        } while (cursor.moveToNext());     } else {        return false;     }      } catch (SQLiteException ex) {     ex.printStackTrace();     Log.d("SQLiteException:", ex.getMessage());    }finally {     if(cursor != null) {      cursor.close();//手动关闭cursor，及时回收     }    }    serializer.endTag(null, "sms");    serializer.endDocument();    outStream.flush();    outStream.close();    return true;   }  }

package com.su.smsbackuprestore.operatesms;    import java.io.File;  import java.io.FileInputStream;  import java.io.FileNotFoundException;  import java.io.IOException;  import java.io.InputStream;  import java.util.ArrayList;  import java.util.List;    import org.xmlpull.v1.XmlPullParser;  import org.xmlpull.v1.XmlPullParserException;    import android.content.ContentResolver;  import android.content.ContentValues;  import android.content.Context;  import android.database.Cursor;  import android.net.Uri;  import android.os.Environment;  import android.os.Looper;  import android.util.Log;  import android.util.Xml;  import android.widget.Toast;    public class ImportSms {     private Context context;     private List<SmsItem> smsItems;   private ContentResolver conResolver;     public ImportSms(Context context) {    this.context = context;    conResolver = context.getContentResolver();   }     @SuppressWarnings("unchecked")   public void testInsertSMS() {    /**     * 放一个解析xml文件的模块     */    smsItems = this.getSmsItemsFromXml();    Log.d("sqk", "after smsItems");    for (SmsItem item : smsItems) {       // 判断短信数据库中是否已包含该条短信，如果有，则不需要恢复     Cursor cursor = conResolver.query(Uri.parse("content://sms"), new String[] { SmsField.DATE }, SmsField.DATE + "=?",       new String[] { item.getDate() }, null);       if (!cursor.moveToFirst()) {// 没有该条短信            ContentValues values = new ContentValues();      values.put(SmsField.ADDRESS, item.getAddress());      // 如果是空字符串说明原来的值是null，所以这里还原为null存入数据库      values.put(SmsField.PERSON, item.getPerson().equals("") ? null : item.getPerson());      values.put(SmsField.DATE, item.getDate());      values.put(SmsField.PROTOCOL, item.getProtocol().equals("") ? null : item.getProtocol());      values.put(SmsField.READ, item.getRead());      values.put(SmsField.STATUS, item.getStatus());      values.put(SmsField.TYPE, item.getType());      values.put(SmsField.REPLY_PATH_PRESENT, item.getReply_path_present().equals("") ? null : item.getReply_path_present());      values.put(SmsField.BODY, item.getBody());      values.put(SmsField.LOCKED, item.getLocked());      values.put(SmsField.ERROR_CODE, item.getError_code());      values.put(SmsField.SEEN, item.getSeen());      conResolver.insert(Uri.parse("content://sms"), values);     }     cursor.close();    }   }    // public void delete() {  //  //  conResolver.delete(Uri.parse("content://sms"), null, null);  // }     public List<SmsItem> getSmsItemsFromXml(){      SmsItem smsItem = null;    XmlPullParser parser = Xml.newPullParser();    String absolutePath = Environment.getExternalStorageDirectory() + "/SMSBackup/message.xml";    File file = new File(absolutePath);    if (!file.exists()) {       Looper.prepare();     Toast.makeText(context, "message.xml短信备份文件不在sd卡中", 1).show();     Looper.loop();//退出线程  //   return null;    }    try {     FileInputStream fis = new FileInputStream(file);     parser.setInput(fis, "UTF-8");     int event = parser.getEventType();     while (event != XmlPullParser.END_DOCUMENT) {      switch (event) {      case XmlPullParser.START_DOCUMENT:       smsItems = new ArrayList<SmsItem>();       break;        case XmlPullParser.START_TAG: // 如果遇到开始标记，如<smsItems>,<smsItem>等       if ("item".equals(parser.getName())) {        smsItem = new SmsItem();          smsItem.setAddress(parser.getAttributeValue(0));        smsItem.setPerson(parser.getAttributeValue(1));        smsItem.setDate(parser.getAttributeValue(2));        smsItem.setProtocol(parser.getAttributeValue(3));        smsItem.setRead(parser.getAttributeValue(4));        smsItem.setStatus(parser.getAttributeValue(5));        smsItem.setType(parser.getAttributeValue(6));        smsItem.setReply_path_present(parser.getAttributeValue(7));        smsItem.setBody(parser.getAttributeValue(8));        smsItem.setLocked(parser.getAttributeValue(9));        smsItem.setError_code(parser.getAttributeValue(10));        smsItem.setSeen(parser.getAttributeValue(11));         }       break;      case XmlPullParser.END_TAG:// 结束标记,如</smsItems>,</smsItem>等       if ("item".equals(parser.getName())) {        smsItems.add(smsItem);        smsItem = null;       }       break;      }      event = parser.next();     }    } catch (FileNotFoundException e) {     // TODO Auto-generated catch block     Looper.prepare();     Toast.makeText(context, "短信恢复出错", 1).show();     Looper.loop();     e.printStackTrace();         } catch (XmlPullParserException e) {     // TODO Auto-generated catch block     Looper.prepare();     Toast.makeText(context, "短信恢复出错", 1).show();     Looper.loop();     e.printStackTrace();           } catch (IOException e) {     // TODO Auto-generated catch block     Looper.prepare();     Toast.makeText(context, "短信恢复出错", 1).show();     Looper.loop();     e.printStackTrace();    }    return smsItems;   }    }

package com.su.smsbackuprestore.operatesms;    public class SmsField {     public static final String ADDRESS = "address";   public static final String PERSON = "person";   public static final String DATE = "date";   public static final String PROTOCOL = "protocol";   public static final String READ = "read";   public static final String STATUS = "status";   public static final String TYPE = "type";   public static final String REPLY_PATH_PRESENT = "reply_path_present";   public static final String BODY = "body";   public static final String LOCKED = "locked";   public static final String ERROR_CODE = "error_code";   public static final String SEEN = "seen";  }

package com.su.smsbackuprestore.operatesms;    public class SmsItem {   String address;   String person;   String date;   String protocol;   String read;   String status;   String type;   String reply_path_present;   String body;   String locked;   String error_code;   String seen;     public String getAddress() {    return address;   }     public void setAddress(String address) {    this.address = address;   }     public String getPerson() {    return person;   }     public void setPerson(String person) {    this.person = person;   }     public String getDate() {    return date;   }     public void setDate(String date) {    this.date = date;   }     public String getProtocol() {    return protocol;   }     public void setProtocol(String protocol) {    this.protocol = protocol;   }     public String getRead() {    return read;   }     public void setRead(String read) {    this.read = read;   }     public String getStatus() {    return status;   }     public void setStatus(String status) {    this.status = status;   }     public String getType() {    return type;   }     public void setType(String type) {    this.type = type;   }     public String getReply_path_present() {    return reply_path_present;   }     public void setReply_path_present(String reply_path_present) {    this.reply_path_present = reply_path_present;   }     public String getBody() {    return body;   }     public void setBody(String body) {    this.body = body;   }     public String getLocked() {    return locked;   }     public void setLocked(String locked) {    this.locked = locked;   }     public String getError_code() {    return error_code;   }     public void setError_code(String error_code) {    this.error_code = error_code;   }     public String getSeen() {    return seen;   }     public void setSeen(String seen) {    this.seen = seen;   }    }