package com.cuit.edu.cn;import com.cuit.edu.cn.db.DateBaseHelper;import android.app.Activity;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;public class SqLiteActivity extends Activity {/** Called when the activity is first created. */private Button createButton = null;private Button updatebaseButton = null;private Button insertButton = null;private Button updateButton = null;private Button queryButton = null;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);createButton = (Button)findViewById(R.id.createdatebase);updatebaseButton = (Button)findViewById(R.id.updateDatebase);insertButton = (Button)findViewById(R.id.insterButton);updateButton = (Button)findViewById(R.id.updateButton);queryButton = (Button)findViewById(R.id.queryButton);createButton.setText(R.string.create);updatebaseButton.setText(R.string.updatebase);insertButton.setText(R.string.insert);updateButton.setText(R.string.update);queryButton.setText(R.string.query);createButton.setOnClickListener(new createButtonListener());updatebaseButton.setOnClickListener(new updatebaseButtonListener());insertButton.setOnClickListener(new insertButtonListener());updateButton.setOnClickListener(new updateButtonListener());queryButton.setOnClickListener(new queryButtonListener());}class createButtonListener implements OnClickListener{@Overridepublic void onClick(View v) {// TODO Auto-generated method stubDateBaseHelper dbHelper = new DateBaseHelper(SqLiteActivity.this, "user_Base");SQLiteDatabase db = dbHelper.getReadableDatabase();}}class updatebaseButtonListener implements OnClickListener{@Overridepublic void onClick(View v) {// TODO Auto-generated method stubSystem.out.println("b================");DateBaseHelper dbHelper = new DateBaseHelper(SqLiteActivity.this, "user_Base",90);SQLiteDatabase db = dbHelper.getReadableDatabase();dbHelper.onUpgrade(db, 90, 91);}}class insertButtonListener implements OnClickListener{@Overridepublic void onClick(View v) {// TODO Auto-generated method stubContentValues values = new ContentValues();values.put("id", 1);values.put("name", "rock");DateBaseHelper dbHelper = new DateBaseHelper(SqLiteActivity.this,"user_Base");SQLiteDatabase db = dbHelper.getWritableDatabase();db.insert("user", null, values);}}class updateButtonListener implements OnClickListener{@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubDateBaseHelper dbHelper = new DateBaseHelper(SqLiteActivity.this, "user_Base");SQLiteDatabase db = dbHelper.getWritableDatabase();ContentValues values = new ContentValues();values.put("name", "cara");db.update("user", values, "id=?", new String[]{"1"});}}class queryButtonListener implements OnClickListener{@Overridepublic void onClick(View v) {// TODO Auto-generated method stubDateBaseHelper dbHelper = new DateBaseHelper(SqLiteActivity.this, "user_Base");SQLiteDatabase db = dbHelper.getReadableDatabase();Cursor cursor = db.query("user", new String[]{"id","name"}, "id=?", new String[]{"1"}, null, null, null);while(cursor.moveToNext()){String name = cursor.getString(cursor.getColumnIndex("name"));System.out.println("------"+name);}}}
}

package com.cuit.edu.cn.db;import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;public class DateBaseHelper extends SQLiteOpenHelper {private static final int VERSION = 1;public DateBaseHelper(Context context, String name, CursorFactory factory,int version) {super(context, name, factory, version);// TODO Auto-generated constructor stub
    }public DateBaseHelper(Context context,String name){this(context,name,VERSION);}public DateBaseHelper(Context context,String name,int version){this(context,name,null,VERSION);}@Overridepublic void onCreate(SQLiteDatabase db) {// TODO Auto-generated method stubSystem.out.println("createdataBase");db.execSQL("create table user(id int, name varchar(20))");}@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {// TODO Auto-generated method stubSystem.out.println("updataBase");}}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="@string/hello" /><Buttonandroid:id="@+id/createdatebase" android:layout_width="fill_parent"android:layout_height="wrap_content"/><Buttonandroid:id="@+id/updateDatebase" android:layout_width="fill_parent"android:layout_height="wrap_content"/><Buttonandroid:id="@+id/insterButton" android:layout_width="fill_parent"android:layout_height="wrap_content"/><Buttonandroid:id="@+id/updateButton" android:layout_width="fill_parent"android:layout_height="wrap_content"/><Buttonandroid:id="@+id/queryButton" android:layout_width="fill_parent"android:layout_height="wrap_content"/></LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources><string name="hello">Hello World, SqLiteActivity!</string><string name="app_name">SqLite</string><string name="query">query</string><string name="updatebase">updatebase</string><string name="update">update</string><string name="create">create</string><string name="insert">insert</string></resources>