package com.aqioo.db;import java.io.File;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import com.aqioo.R; import android.content.Context;import android.database.sqlite.SQLiteDatabase;//在res文件夹下新建 raw 文件夹//数据库文件放在 \res\raw\test.db//在调用Sqlite的操作前实例化此类即可//code by:public class ImportDbFileToPhone {    //        /data/data/名称空间(com.aqioo)/databases    private static final String DATABASE_PATH = "/data/data/com.aqioo/databases";    private static final int DATABASE_VERSION = 0;    private static final String DATABASE_NAME = "test.db";//数据库    private static String outFileName = DATABASE_PATH + "/" + DATABASE_NAME;    private Context context;    private SQLiteDatabase database;    public ImportDbFileToPhone(Context context) {        this.context = context;        File file = new File(outFileName);        if (file.exists()) {            database = SQLiteDatabase.openOrCreateDatabase(outFileName, null);            if (database.getVersion() != DATABASE_VERSION) {                database.close();                file.delete();            }        }        try {            buildDatabase();        } catch (Exception e) {            e.printStackTrace();        }    }    private void buildDatabase() throws Exception {        InputStream myInput = context.getResources().openRawResource(                R.raw.aqiooapp);        File file = new File(outFileName);        File dir = new File(DATABASE_PATH);        if (!dir.exists()) {            if (!dir.mkdir()) {                throw new Exception("创建失败");            }        }        if (!file.exists()) {            try {                OutputStream myOutput = new FileOutputStream(outFileName);                byte[] buffer = new byte[1024];                int length;                while ((length = myInput.read(buffer)) > 0) {                    myOutput.write(buffer, 0, length);                }                myOutput.close();                myInput.close();            } catch (Exception e) {                e.printStackTrace();            }        }    }    }

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