Database replication issues in Android projects

Source: Internet
Author: User

============ Problem Description ============


Java IO stream copied sqlite3 database file, Chinese data query not come out, you have encountered this problem, help me answer

============ Solution 1============


Private void dbimport ()     {        try         {             file dir = new file (Database_path);             //  if the/sdcard/testdb directory exists, create this directory              if  (!dir.exists ())                  dir.mkdir ();             //  if not present in the/sdcard/testdb directory              // test.db file, copy this file from the Asset\db directory to            Catalogue of   // SD Cards (/SDCARD/TESTDB)              if  (!) ( New&nbSp File (DatabaseFilename2)). Exists ())             {//                 file f  =  (New file (databaseFilename2));//                 f.delete ();                 //  get InputStream objects that encapsulate testdatabase.db files                  AssetManager asset =  Getassets ();                 Inputstream is = asset.open ("db/database.db");                 FileOutputStream fos = new  FileOutputStream (databaseFilename2);                  byte[] buffer  = new byte[1024];                 int count = 0;                 //  start copying testdatabase.db files                  while  ((count = is.read (buffer))  > 0)                  {                     fos.write (Buffer, 0, count);                 }                  Fos.close ();                 Is.close ();                 //  asset.close ();            }         }        catch  (Exception  e)         {             e.printstacktrace ();        }         // deletedatabase ("testdatabase.db");//delete database     }


This is the import db method that I originally wrote. Also useless to encoding. Japanese database, no problem.

============ Solution 2============


Reference:
http://download.csdn.net/detail/fire_fire_fire/5290315

Database replication issues in Android projects

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