从Android的contacts2.db中导出vcard联系人方法，只简单说明下步骤

1：拿到contacts2.db文件

两种方法

(1):通过手机的RE管理工具将目录data/data/com.android.providers.contacts/databases/contacts2.db文件拷贝出来

(2):通过Recovery备份的文件data.img用unyaff程序解压缩后，可找到对应的data/data/com.android.providers.contacts/databases/contacts2.db文件，该方法适用于进不了系统的情况

2：使用java sqlite驱动包

下载地址：http://www.ch-werner.de/javasqlite/

3：使用android的vcard jar包

下载地址：http://code.google.com/p/android-vcard/

4：编写java代码进行数据的导出

(1)：先读取数据库中contacts表，生成用户名和ID的对象

(2)：遍历用户列表，根据用户ID读取raw_contacts和data表获取号码、地址等信息(两个表需要关联)

判断表中mimetype_id类型，一般mimetype_id值的定义：3: 地址 data1 5: 手机号码 data1 8: 名称 data1全名 data2名 data3姓 9:其他信息 data1地址 data4职位

(3)：遍历用户列表，将用户信息导出到vcard文件

附上代码：

UserData

package org.rwl;

import java.util.ArrayList;

import java.util.List;

/**

* Created with PolarRwl.

* User: polarrwl

* Date: 13-5-23

* Time: 下午3:46

* To change this template use File | Settings | File Templates.

*/

public class UserData {

private String userid;

private String name;

private String email;

private String address;

private String duty;

private List phones = new ArrayList();

public String getUserid() {

return userid;

}

public void setUserid(String userid) {

this.userid = userid;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getEmail() {

return email;

}

public void setEmail(String email) {

this.email = email;

}

public List getPhones() {

return phones;

}

public void setPhones(List phones) {

this.phones = phones;

}

public String getAddress() {

return address;

}

public void setAddress(String address) {

this.address = address;

}

public String getDuty() {

return duty;

}

public void setDuty(String duty) {

this.duty = duty;

}

public String toString() {

String result = "";

result += "ID:(" + userid;

result += ") 姓名:(" + name;

result += ") 邮件:(" + email;

result += ") 号码:(" + phones;

result += ") 地址:(" + address;

result += ") 职位:(" + duty;

result += ")";

return result;

}

}

TestSqlite

package org.rwl.sqlite;

import a_vcard.android.provider.Contacts;

import a_vcard.android.syncml.pim.vcard.ContactStruct;

import a_vcard.android.syncml.pim.vcard.VCardComposer;

import org.rwl.UserData;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.sql.*;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

/**

* Created with PolarRwl.

* User: polarrwl

* Date: 13-5-23

* Time: 下午2:55

* To change this template use File | Settings | File Templates.

*/

public class TestSqlite {

public static void main(String[] args) {

Map repeat = new HashMap();

System.out.println("读取所有的联系人");

List theDataList = getAllContacts();

System.out.println("处理联系人号码信息");

for(UserData uData : theDataList) {

analyseUserOtherData(uData);

}

System.out.println("打印联系人信息:");

int i= 0;

for(UserData uData : theDataList) {

i++;

// System.out.println(i + ":" + uData);

// exportToVcard(uData);

if(repeat.get(uData.getName()) != null) {

System.out.println("重名:" + uData + "[" + repeat.get(uData.getName()) + "]");

}

repeat.put(uData.getName(), uData);

}

}

/**

* mimetype_id

* 3: 地址 5: 手机号码 8: 名称 data1全名 data2名 data3姓 9: data1地址 data4职位 10:

*

* @param _udata

*/

public static void analyseUserOtherData(UserData _udata) {

Connection conn = null;

try {

conn = getConnection2();

Statement stmt = conn.createStatement();

String sql = "select * from raw_contacts t1, data t2 where t1._id = t2.raw_contact_id";

sql += " and t1.contact_id = " + _udata.getUserid();

ResultSet rs = stmt.executeQuery(sql);

while(rs.next()) {

int mimetype_id = rs.getInt("mimetype_id");

String data1 = rs.getString("data1");

String data2 = rs.getString("data2");

String data3 = rs.getString("data3");

String data4 = rs.getString("data4");

if(mimetype_id == 3) {

_udata.setAddress(data1);

} else if(mimetype_id == 5) {

if(data1 != null && !_udata.getPhones().contains(data1)) {

_udata.getPhones().add(data1);

}

} else if(mimetype_id == 9) {

_udata.setAddress(data1);

_udata.setDuty(data4);

}

}

} catch (Exception e) {

e.printStackTrace();

} finally {

if(conn != null) {

try {

conn.close();

} catch (SQLException e) {

e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.

}

}

}

}

public static void exportToVcard(UserData _data) {

OutputStreamWriter writer = null;

try {

writer = new OutputStreamWriter(new FileOutputStream("outputvcard/" + _data.getName() + ".vcf"), "UTF-8");

VCardComposer composer = new VCardComposer();

ContactStruct contact1 = new ContactStruct();

contact1.name = _data.getName();

contact1.company = "";

contact1.notes = new ArrayList();

contact1.notes.add(_data.getAddress());

for(int i=0; i<_data.getphones i>

if(_data.getPhones().get(i).length() == 11) {

contact1.addPhone(Contacts.Phones.TYPE_MOBILE, _data.getPhones().get(i), null, true);

} else {

contact1.addPhone(Contacts.Phones.TYPE_OTHER, _data.getPhones().get(i), null, true);

}

}

//create vCard representation

String vcardString = composer.createVCard(contact1, VCardComposer.VERSION_VCARD30_INT);

//write vCard to the output stream

writer.write(vcardString);

writer.write("\n"); //add empty lines between contacts

// repeat for other contacts

// ...

} catch(Exception e) {

e.printStackTrace();

} finally {

if (writer != null) {

try {

writer.close();

} catch (IOException e) {

e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.

}

}

}

}

public static List getAllContacts() {

List theResList = new ArrayList();

Connection conn = null;

try {

conn = getConnection2();

Statement stmt = conn.createStatement();

String sql = "select * from contacts";

ResultSet rs = stmt.executeQuery(sql);

while(rs.next()) {

int theId = rs.getInt("_id");

String name = rs.getString("display_name");

if(name == null || name.length() < 0) {

continue;

}

UserData theData = new UserData();

theData.setUserid(""+theId);

theData.setName(name);

theResList.add(theData);

}

} catch (Exception e) {

e.printStackTrace();

} finally {

if(conn != null) {

try {

conn.close();

} catch (SQLException e) {

e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.

}

}

}

return theResList;

}

public static Connection getConnection2() {

Connection conn = null;

SQLite.Database db = null;

try {

Class.forName("SQLite.JDBCDriver").newInstance();

conn = DriverManager.getConnection("jdbc:sqlite:database/contacts2.db");

// java.lang.reflect.Method m =

// conn.getClass().getMethod("getSQLiteDatabase", null);

// db = (SQLite.Database) m.invoke(conn, null);

} catch (Exception e) {

e.printStackTrace();

}

return conn;

}

}