Android學習筆記（35）--- 使用sqlite 把.txt文件導進.db

一、新建txt文件，以一下固定格式存儲數據，如下：

1|1000|file:///system/kindergarten/item_main.html
2|1001|file:///system/kindergarten/item_main.html
3|1002|file:///system/kindergarten/item_main.html
4|1003|file:///system/kindergarten/item_main.html
5|1004|file:///system/kindergarten/item_main.html

二、android工程創建生成.db文件

1、DatabaseHelper.java

package com.ideal.txttodb;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

public class DatabaseHelper extends SQLiteOpenHelper {
	private static final int DATABASE_VERSION = 1;
	private String DATABASE_CREATE = "create table pathcode(_id INTEGER PRIMARY KEY AUTOINCREMENT,code varchar(100),path varchar(200))"; 

	public DatabaseHelper(Context context, String DATABASE_NAME) {
		super(context, DATABASE_NAME, null, DATABASE_VERSION);
		Log.i("txttodb", "DatabaseHelper--oncreate");
	}

	@Override
	public void onCreate(SQLiteDatabase db) {
		Log.i("txttodb", "sql--oncreate");
		db.execSQL(DATABASE_CREATE);
	}

	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		// TODO Auto-generated method stub

	}
}

2、DBManager.java

package com.ideal.txttodb;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;

public class DBManager {

	private DatabaseHelper mDbHelper;
	private SQLiteDatabase mDb;

	public DBManager(Context context) {
		Log.i("txttodb", "DBManager--oncreate");
		mDbHelper = new DatabaseHelper(context, "pathCode.db");
		//執行getWritableDatabase或者getReadableDatabase才能生成.db文件
		mDb = mDbHelper.getWritableDatabase();
	}
}

3、在MainActivity.java中調用

DBManager mDbManager = new DBManager(getApplicationContext());

三、把txt文件push進去databases

四、txt內容導進表中

五、打開.db查看是否導入數據成功