對(duì)于建立一個(gè)flex web應(yīng)用的步驟我就不多說(shuō)了哈。

首先要求大家到數(shù)據(jù)庫(kù)建立一個(gè)數(shù)據(jù)庫(kù)，在我這例子中數(shù)據(jù)庫(kù)名為userDb，建立一個(gè)表userInfo，里面設(shè)置兩個(gè)字段一個(gè)為id，一個(gè)為name.第二，創(chuàng)建以下java代碼在src目錄下

User.java package org.rjb.java; public class User { private Stringname; public StringgetName() { return name; } public void setName(Stringname) { this .name = name; } } UserDao.java package org.rjb.java; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.ArrayList; import java.util.List; public class UserDao { public static ConnectiongetConnection() { Connectionc = null ; try { Stringdriver = " com.mysql.jdbc.Driver " ; Stringurl = " jdbc:mysql://localhost:3306/userDb " ; Stringusername = " root " ; Stringpassword = " 1235 " ; Class.forName(driver); c = DriverManager.getConnection(url,username,password); } catch (Exceptione) { System.out.println(e.getMessage()); } return c; } public ListgetAllUser() throws SQLException { Connectionc = getConnection(); Statementst = c.createStatement(); ResultSetrs = st.executeQuery( " select*fromUserInfo " ); ArrayListuserList = new ArrayList < User > (); while (rs.next()) { Useru = new User(); u.setName(rs.getString( " name " )); userList.add(u); } return userList; } }

以上是java端的全部代碼了，下面是flex端的代碼。

第三，創(chuàng)建以下代碼在flex_src下：

User.as package org.rjb.flex { [RemoteClass(alias = " org.rjb.java.User " )] public class User { private var_name:String; public functionUser() { } public functiongetname():String { return this ._name; } public functionsetname(name:String): void { this ._name = name; } } } User.as package org.rjb.flex { [RemoteClass(alias = " org.rjb.java.User " )] public class User { private var_name:String; public functionUser() { } public functiongetname():String { return this ._name; } public functionsetname(name:String): void { this ._name = name; } } }

接下來(lái)是mxml代碼，也就是我們真正展示我們數(shù)據(jù)的界面

FlexWith Java .mxml <? xmlversion="1.0"encoding="utf-8" ?> < mx:Application xmlns:mx ="http://www.adobe.com/2006/mxml" layout ="vertical" > < mx:RemoteObject id ="ud" destination ="UserDao" result ="onResult(event)" fault ="onFault()" /> < mx:DataGrid dataProvider ="{users}" > < mx:columns > < mx:DataGridColumn dataField ="name" headerText ="name" /> </ mx:columns > </ mx:DataGrid > < mx:Label id ="info" /> < mx:Button label ="click" click ="clickFun()" /> < mx:Script > <![CDATA[ importmx.collections.ArrayCollection; importmx.rpc.events.ResultEvent; [Bindable] publicvarusers:ArrayCollection=newArrayCollection(); publicfunctionclickFun():void{ ud.getAllUser(); } publicfunctiononResult(event:ResultEvent):void{ users=ArrayCollection(event.result); info.text="getdatasuccessfully"; } publicfunctiononFault():void{ info.text="Error"; } ]]> </ mx:Script > </ mx:Application >

第四，配置remoting-config.xml，在里面加上如下配置文件：

< destination id ="UserDao" >
< properties >
< source > org.rjb.java.UserDao </ source >
</ properties >
</ destination >

Flex與java交互之?dāng)?shù)據(jù)庫(kù)數(shù)據(jù)讀取