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1.配置及说明
- jar包说明
从官方上下的Blazeds中，默认的配置有四个文件,都在WEB-INF/Flex目录下：services-config.xml、remoting-config.xml、proxy-config.xml、messaging-config.xml。要使用他，首先把lib目录下的jar包拷贝到你自己创建的web项目中去，当然你可以用maven来管理jar包，这样就会方便很多。这里作为demo，我把目录的截图展示一下：
其中xalan.jar在本例中并没有用到，它是处理xml文档的一个jar包。
- web.xml配置文件
在web.xml中加入监听（就是个设计模式中的观察者模式），来将HttpFlexSession类作为监听器注册到web.xml中，这样当J2EE HttpSession属性和代理属性的变化时候，就会通知FlexSession属性和目前绑定的listener做相应处理。
<!-- Http Flex Session attribute and binding listener support -->
<listener>
<listener-class>flex.messaging.HttpFlexSession</listener-class>
</listener>
加入blazeds提供的servlet，这样当URL请求符合/messagebroker/*（这个和后面展示的channel中的那个路径对应）模式时候，它会在Servlet容器启动时启动,并在启动时读取配置文件/WEB-INF/flex/services-config.xml.
<!-- MessageBroker Servlet -->
<servlet>
<servlet-name>MessageBrokerServlet</servlet-name>
<display-name>MessageBrokerServlet</display-name>
<servlet-class>flex.messaging.MessageBrokerServlet</servlet-class>
<init-param>
<param-name>services.configuration.file</param-name>
<param-value>/WEB-INF/flex/services-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>MessageBrokerServlet</servlet-name>
<url-pattern>/messagebroker/*</url-pattern>
</servlet-mapping>
- 服务配置文件flex/services-config.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <services-config>
3
4 <services>
5 <service-include file-path="remoting-config.xml" />
6 <service-include file-path="proxy-config.xml" />
7 <service-include file-path="messaging-config.xml" />
8 </services>
9
10 <security>
11 <login-command class="flex.messaging.security.TomcatLoginCommand" server="Tomcat"/>
12 <!-- Uncomment the correct app server
13 <login-command class="flex.messaging.security.TomcatLoginCommand" server="JBoss">
14 <login-command class="flex.messaging.security.JRunLoginCommand" server="JRun"/>
15 <login-command class="flex.messaging.security.WeblogicLoginCommand" server="Weblogic"/>
16 <login-command class="flex.messaging.security.WebSphereLoginCommand" server="WebSphere"/>
17 -->
18
19 <!--
20 <security-constraint id="basic-read-access">
21 <auth-method>Basic</auth-method>
22 <roles>
23 <role>guests</role>
24 <role>accountants</role>
25 <role>employees</role>
26 <role>managers</role>
27 </roles>
28 </security-constraint>
29 -->
30 </security>
31 <!--Channel的作用就是帮助我们传输消息.Channel使用URL与Endpoint通信.Endpoint就是消息传输的接收器,它并不真正处理消息,它将处理过程委托给service -->
32 <channels>
33
34 <channel-definition id="my-amf" class="mx.messaging.channels.AMFChannel">
35 <endpoint url="http://{server.name}:{server.port}/{context.root}/messagebroker/amf" class="flex.messaging.endpoints.AMFEndpoint"/>
36 </channel-definition>
37
38 <channel-definition id="my-secure-amf" class="mx.messaging.channels.SecureAMFChannel">
39 <endpoint url="https://{server.name}:{server.port}/{context.root}/messagebroker/amfsecure" class="flex.messaging.endpoints.SecureAMFEndpoint"/>
40 <properties>
41 <add-no-cache-headers>false</add-no-cache-headers>
42 </properties>
43 </channel-definition>
44
45 <channel-definition id="my-polling-amf" class="mx.messaging.channels.AMFChannel">
46 <endpoint url="http://{server.name}:{server.port}/{context.root}/messagebroker/amfpolling" class="flex.messaging.endpoints.AMFEndpoint"/>
47 <properties>
48 <polling-enabled>true</polling-enabled>
49 <polling-interval-seconds>4</polling-interval-seconds>
50 </properties>
51 </channel-definition>
52
53 <!--
54 <channel-definition id="my-http" class="mx.messaging.channels.HTTPChannel">
55 <endpoint url="http://{server.name}:{server.port}/{context.root}/messagebroker/http" class="flex.messaging.endpoints.HTTPEndpoint"/>
56 </channel-definition>
57
58 <channel-definition id="my-secure-http" class="mx.messaging.channels.SecureHTTPChannel">
59 <endpoint url="https://{server.name}:{server.port}/{context.root}/messagebroker/httpsecure" class="flex.messaging.endpoints.SecureHTTPEndpoint"/>
60 <properties>
61 <add-no-cache-headers>false</add-no-cache-headers>
62 </properties>
63 </channel-definition>
64 -->
65 </channels>
66
67 <logging>
68 <!-- 输出到控制台 ,若要使用Servlet日志文件作为目标,将class属性改为"flex.messaging.log.ServletLogTarget".-->
69 <!-- 中level="Error"为日志的记录级别.有None,Error,Warn,Info,Debug,All六种选择 -->
70 <target class="flex.messaging.log.ConsoleTarget" level="Error">
71 <properties>
72 <prefix>[BlazeDS] </prefix>
73 <includeDate>false</includeDate>
74 <includeTime>false</includeTime>
75 <includeLevel>false</includeLevel>
76 <includeCategory>false</includeCategory>
77 </properties>
78 <!-- 信息的过滤条件,只有匹配的类别才会被记录到指定的目标中 -->
79 <filters>
80 <pattern>Endpoint.*</pattern>
81 <pattern>Service.*</pattern>
82 <pattern>Configuration</pattern>
83 </filters>
84 </target>
85 </logging>
86
87 <system>
88 <redeploy>
89 <enabled>false</enabled>
90 <!--
91 <watch-interval>20</watch-interval>
92 <watch-file>{context.root}/WEB-INF/flex/services-config.xml</watch-file>
93 <watch-file>{context.root}/WEB-INF/flex/proxy-config.xml</watch-file>
94 <watch-file>{context.root}/WEB-INF/flex/remoting-config.xml</watch-file>
95 <watch-file>{context.root}/WEB-INF/flex/messaging-config.xml</watch-file>
96 <watch-file>{context.root}/WEB-INF/flex/data-management-config.xml</watch-file>
97 <touch-file>{context.root}/WEB-INF/web.xml</touch-file>
98 -->
99 </redeploy>
100 </system>
101
102 </services-config>
配置文件就简单说明到这，有兴趣自己googling。。。。。
2.创建简单remote例子。
这里面我就用flexbuilder4.6和myeclipse两个分开来创建项目。我觉得这样舒服，你要是不爽，你也可以装插件，都在eclipse中编译。
- 后代java代码
1 package com.bing.test;
2
3 public class HelloWorld {
4
5 public String getHelloWorld(String name){
6 System.out.println("hello "+name);
7 return "this is a test for " +name;
8 }
9 }
- 远程服务配置文件
1 <?xml version="1.0" encoding="UTF-8"?> 2 <service id="remoting-service" class="flex.messaging.services.RemotingService"> 3 4 <adapters> 5 <adapter-definition id="java-object" 6 class="flex.messaging.services.remoting.adapters.JavaAdapter" 7 default="true" /> 8 </adapters> 9 10 <default-channels> 11 <channel ref="my-amf" /> 12 </default-channels> 13 <!-- destination设置服务终端的目的地,属性id为客户端组件RemoteObject的destination --> 14 <destination id="helloWorld" channels="my-amf"> 15 <properties> 16 <source>com.bing.test.HelloWorld</source> 17 </properties> 18 </destination> 19 </service>
- 前台flexbuilder中配置及代码
新建flex项目dstest，在服务器设置这一步，选择如下，当然你也可以创建好项目后在设置。
创建好之后，编写flex代码
1 <?xml version="1.0" encoding="utf-8"?>
2 <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
3 xmlns:s="library://ns.adobe.com/flex/spark"
4 xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
5 <fx:Script>
6 <![CDATA[
7 import mx.rpc.events.FaultEvent;
8 import mx.rpc.events.ResultEvent;
9
10 // Send the message in response to a Button click.
11 private function dotest():void {
12 var text:String = ti.text;
13 remoteObject.getHelloWorld(text);
14 }
15
16 // Handle the recevied message.
17 private function resultHandler(event:ResultEvent):void {
18 ta.text += "服务器返回: "+ event.result + "\n";
19 }
20
21 // Handle a message fault.
22 private function faultHandler(event:FaultEvent):void {
23 ta.text += "Received fault: " + event.fault + "\n";
24 }
25 ]]>
26 </fx:Script>
27 <fx:Declarations>
28 <s:RemoteObject id="remoteObject"
29 destination="helloWorld"
30 result="resultHandler(event);"
31 fault="faultHandler(event);"/>
32 </fx:Declarations>
33
34 <s:layout>
35 <s:VerticalLayout gap="10" />
36 </s:layout>
37 <s:Label text="输入名字"/>
38 <s:TextInput id="ti" text="Hello World!"/>
39 <s:Button label="Send" click="dotest();"/>
40 <s:TextArea id="ta" width="100%" height="100%"/>
41 </s:Application>
编译之后，在myeclipse的项目目录下会出现一个debug目录，如下：
修改index.jsp页面，加入超链接
<html> <body> <h2>Hello World!</h2> <a href="dstest-debug/dstest.html">ddd</a> </body> </html>
好了，这样就可以启动访问了。