使用示例：
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package cn.hackcoder.beautyreader.db;import android.content.Context;import android.database.sqlite.SQLiteDatabase;import android.database.sqlite.SQLiteOpenHelper;import android.util.Log;/** * Created by hackcoder on 15-1-25. */public class DataBaseHelper extends SQLiteOpenHelper { private static final String dbName = "sample.db"; private static int dbVersion = 1; public DataBaseHelper(Context context) { super(context,dbName,null,dbVersion); } @Override public void onCreate(SQLiteDatabase db) { Log.d("===========","数据库初始化"); //建表 String sql = "create table if not exists tb_article(id integer primary key autoincrement,title varchar(50),content TEXT,url varchar(50),page integer)"; db.execSQL(sql); } /** * * @param db * @param oldVersion * @param newVersion */ @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { }} |
类源码：
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package cn.hackcoder.beautyreader.service;import android.content.Context;import android.database.Cursor;import android.database.sqlite.SQLiteDatabase;import java.util.ArrayList;import java.util.List;import cn.hackcoder.beautyreader.db.DataBaseHelper;import cn.hackcoder.beautyreader.model.Article;/** * Created by hackcoder on 15-1-25. */public class ArticleService { private DataBaseHelper dataBaseHelper; private SQLiteDatabase readableDatabase; private SQLiteDatabase writableDatabase; public ArticleService(Context context) { dataBaseHelper = new DataBaseHelper(context); } public void add(Article article) { String sql = "insert into tb_article(id,title,content,url,page) values(?,?,?,?,?)"; getReadableDatabase().execSQL(sql, new Object[]{null, article.getTitle(), article.getContent(), article.getUrl(), article.getPage()}); } public void delete(int id) { String sql = "delete from tb_article where id =?"; getReadableDatabase().execSQL(sql, new Object[]{id}); } public void deleteAll() { String sql = "delete from tb_article"; getReadableDatabase().execSQL(sql,null); } public void update(Article article) { String sql = "update tb_article set id="codetool">
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