頁面
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
import sqlTest.SQLTest;
protected function button1_clickHandler(event:MouseEvent):void
{
var sql:SQLTest = new SQLTest();
}
]]>
</fx:Script>
<s:Button x="192" y="221" label="按鈕" click="button1_clickHandler(event)"/>
</s:WindowedApplication>
sqlite類
package sqlTest
{
import flash.data.SQLConnection;
import flash.data.SQLResult;
import flash.data.SQLStatement;
import flash.events.SQLErrorEvent;
import flash.events.SQLEvent;
import flash.filesystem.File;
import flash.net.Responder;
import mx.controls.Alert;
public class SQLTest
{
private var con:SQLConnection;
private var stmt:SQLStatement;
private var creatTableSQL:String ="CREATE TABLE IF NOT EXISTS user ( "+
"userId INTEGER PRIMARY KEY AUTOINCREMENT, " +
"userName TEXT, " +
"password TEXT )";
private var insertSQL:String = "INSERT INTO user (userName, password) VALUES ('admin', 'admin')";
//語句參數 :itemName @firstName 或者 ? 使用問號時只能用索引方式設值 索引從0開始
private var insertSQLparams:String = "INSERT INTO user (userName, password) VALUES (:userName, @password)";
private var deleteSQLparams:String = "delete from user where userName=:userName"
private var updateSQLparams:String = "update user set password= ? where userName= ?";
private var selectSQL:String = "select userName,password from user"
public function SQLTest()
{
initApp();
}
private function initApp():void
{
var file:File = File.applicationStorageDirectory.resolvePath("MySQLite.sqlite")
con = new SQLConnection();
//異步
// asyncOpen(con,file);
//同步
open(con,file);
}
private function open(con:SQLConnection,file:File):void
{
try{
//若參數爲空則建立在內存上 若文件不存在則自動創建
con.open(file);
con.begin();
Alert.show("Create/open database finished");
stmt = new SQLStatement();
stmt.sqlConnection = con;
//1.create table
stmt.text = creatTableSQL;
//2.insert data
stmt.text = insertSQL;
//帶佔位符insert
// stmt.text = insertSQLparams;
// stmt.parameters[":userName"] = "aaa";
// stmt.parameters["@password"] = "admin";
//3.delete
// stmt.text = deleteSQLparams;
// stmt.parameters[0] = "admin";
//4.update
// stmt.text = updateSQLparams;
// stmt.parameters[0] = "aaa";
// stmt.parameters[1] = "aaa";
//5.select
// stmt.text = selectSQL;
// var responder:Responder = new Responder("resultHandler", "errorHandler");
// stmt.execute(1,responder);//此處可以指定返回行數 ,若不使用responder則添加2個監聽器如下
// stmt.addEventListener(SQLEvent.RESULT,resultHandler);
// stmt.addEventListener(SQLErrorEvent.ERROR,errorHandler);
stmt.execute();
var result:SQLResult = stmt.getResult();
//row
if(result!=null)
{
//上一次INSERT 操作的行標識符 如果執行的語句不是 INSERT 語句,則該值爲 0
var row:Number = result.lastInsertRowID;
row = result.rowsAffected;
Alert.show("Row"+row.toString());
}
//data
if(result.data!=null)
{
var numResults:int =result.data.length;
for (var i:int = 0; i < numResults; i++)
{
var re:Object = result.data[i];
var output:String = "userName: " + re.userName;
output += "; password: " + re.password;
Alert.show(output);
}
}
Alert.show("finished");
con.commit();
}catch(error:SQLErrorEvent)
{
con.rollback();
errorHandler(error);
}
}
private function asyncOpen(con:SQLConnection,file:File):void
{
// openAsync SQLConnection 對象操作導致錯誤時調度
con.addEventListener(SQLErrorEvent.ERROR,errorHandler);
// openAsync 方法調用操作成功完成時調度
con.addEventListener(SQLEvent.OPEN,openHandler);
//若參數爲空則建立在內存上 若文件不存在則自動創建
con.openAsync(file);
}
private function openHandler(evt:SQLEvent):void
{
Alert.show("Create/open database finished");
stmt = new SQLStatement();
stmt.sqlConnection = con;
stmt.text = creatTableSQL;
stmt.addEventListener(SQLEvent.RESULT, createResult);
stmt.addEventListener(SQLErrorEvent.ERROR, createError);
stmt.execute();
}
private function errorHandler(evt:SQLErrorEvent):void
{
Alert.show("SQLErrorEvent");
Alert.show(evt.error.message);
Alert.show(evt.error.details);
}
private function createResult(event:SQLEvent):void
{
Alert.show("create table finished");
}
private function createError(event:SQLErrorEvent):void
{
Alert.show("Error message:", event.error.message);
Alert.show("Details:", event.error.details);
}
}
}