BlazeDS Flex端常用方法总结 及 ResultEvent分析

1 .基本使用:

private var op:AbstractOperation;
public function loadEmployees():void {
op = AppContext.getRemoteObject().getOperation(“loadEmployees”); //获得Operation
op.arguments = [id]; //设定参数
var at:AsyncToken = op.send(); //Send
at.addResponder(this); //为本实例增加responder

}

//———————实现 IResponder——————————-
public function result(responderResult:Object):void {
var resultEvent:ResultEvent = responderResult as ResultEvent;
var ac:ArrayCollection = resultEvent.result as ArrayCollection;//result为服务器返回的数据
log.debug(“已读取到 ” + this + “的职员列表, 职员数目为: ” + ac.length);
}

public function fault(data:Object):void {
throw new Error(“远程操作失败”);
}

2. 另外可通过外置Responder实例来响应结果, 同时在实例中dispatch Event, 可实现在当前类中响应服务器端返回数据.

//Listener [...]

Flex – BlazeDS – Java – JDBC – MySql 速配[快速配置]

从下往上:

1. Java – JDBC – MySql

1. 装好MySql, 启动服务.

2. 将mysql-connector-java-5.1.7-bin.jar 拖入WEB-INF/lib下.

搞定.

2. Java端BlazeDS配置

1. Java端:

将BlazeDS压缩包内的WEB-INF里面的东西拷贝工程内的WEB-INF下的相应位置中.[ Flex目录下有四个xml配置文件, lib下是需要使用的jar] 包括web.xm

2. 配置services-config.xml中channels标签中的内容:

false

true
4

其中, http://localhost:8080/DepartmentManagement/ 是该Web工程的地址 [可在web-content下建立一空index.html, 运行后查看地址便可]

3. 编写Java类, 并配置remoting-config.xml文件的<service>标签下, 增加服务, 如下:

com.insprise.guoliang.DepartmentManagement

3. Flex端建立工程

1. 建立 Flex与Java通信载体RemoteObject

为方便在整个工程中使用, 可建立一个Singleton – 关于AS中的Singleton可见: [...]

Flex端调用Java服务的过程

1. get Operation

2. set arguments

3. AddResponder, Send();

如下:

private var op:AbstractOperation;
public function loadEmployees():void {
op = AppContext.getRemoteObject().getOperation(“loadEmployees”); //获得Operation
op.arguments = [id]; //设定参数
op.send();
var at:AsyncToken = op.send(); //Send
at.addResponder(this); //为本实例增加responder
}
//使用当前类响应, 则应实现IResponder接口, 要实现两个方法, 如下:
//———————Responder——————————-
public function result(responderResult:Object):void {
var resultEvent:ResultEvent = responderResult as ResultEvent;//转换
var ac:ArrayCollection = resultEvent.result as ArrayCollection;//获得Result
log.debug(“已读取到 ” + this + “的职员列表, 职员数目为: ” + ac.length);
}

public function [...]

BlazeDS配置实例

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1.什么是BlazeDS

BlazeDS is the server-based Java remoting and web messaging technology that enables developers to easily connect to back-end distributed data and push data in real-time to Adobe® Flex® and Adobe AIR™ applications for more responsive rich Internet application (RIA) experiences.

BlazeDS consists of three key services:
1.The Remoting Service allows your Flex application [...]