amf是Adobe獨家開發的數據封裝格式，Flash可以直接訪問，由于它是基于二進制的數據傳輸，所以相對于xml SOAP、json、webService等基于字符串的數據格式，有數據體積小和效率高的特點。

amf目前有AMF0和AMF3兩種格式，flash8以前版本只支持AMF0，flash9支持兩種格式。AMF3比AMF0效率更高。

調試環境：

1、JDK 1.5

2、Resin 3.0

3、Flash CS3

4、flex-messaging-core.jar和flex-messaging-common.jar(這兩個jar包文件可在Adobe的開源項目BlazeDS中找到)

Flash客戶端代碼：

/**

*?...

*?@author?Kinglong

*?@version?0.1

*/

package?project.test?{

import?flash.display.*;

import?flash.events.*;

import?flash.net.*;

import?flash.utils.*;

public?class?TestAMF?extends?Sprite?{

private?var?_loader:URLLoader;

public?function?TestAMF()?{

trace("TestAMF");

_loader?=?new?URLLoader();

_loader.dataFormat?=?URLLoaderDataFormat.BINARY;

_loader.addEventListener(Event.COMPLETE,?loaderHandler);

_loader.addEventListener(SecurityErrorEvent.SECURITY_ERROR,?loaderHandler);

_loader.addEventListener(IOErrorEvent.IO_ERROR,?loaderHandler);

var?request:URLRequest?=?new?URLRequest("http://localhost:8080/ajax/servlet/test");

_loader.load(request);

}

private?function?loaderHandler(event:*):void?{

trace(event.type);

switch(event.type)?{

case?Event.COMPLETE:

var?start:Number=getTimer();

var?byte:ByteArray?=?_loader.data?as?ByteArray;

byte.uncompress();

var?obj:Object?=?byte.readObject();

var?end:Number=getTimer();

trace("耗時："?+?(end?-?start)?+?"毫秒");

trace(obj.fullName);

break;

}

}

}

}

/**
* ...
* @author Kinglong
* @version 0.1
*/
package project.test {
import flash.display.*;
import flash.events.*;
import flash.net.*;
import flash.utils.*;
public class TestAMF extends Sprite {
private var _loader:URLLoader;
public function TestAMF() {
trace("TestAMF");
_loader = new URLLoader();
_loader.dataFormat = URLLoaderDataFormat.BINARY;
_loader.addEventListener(Event.COMPLETE, loaderHandler);
_loader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, loaderHandler);
_loader.addEventListener(IOErrorEvent.IO_ERROR, loaderHandler);
var request:URLRequest = new URLRequest("http://localhost:8080/ajax/servlet/test");
_loader.load(request);
}
private function loaderHandler(event:*):void {
trace(event.type);
switch(event.type) {
case Event.COMPLETE:
var start:Number=getTimer();
var byte:ByteArray = _loader.data as ByteArray;
byte.uncompress();
var obj:Object = byte.readObject();
var end:Number=getTimer();
trace("耗時：" + (end - start) + "毫秒");
trace(obj.fullName);
break;
}
}
}
}

Java服務端代碼

import?java.io.*;

import?java.util.HashMap;

import?java.util.Map;

import?java.util.zip.*;

import?javax.servlet.ServletException;

import?javax.servlet.http.HttpServlet;

import?javax.servlet.http.HttpServletRequest;

import?javax.servlet.http.HttpServletResponse;

import?flex.messaging.io.*;

import?flex.messaging.io.amf.*;

public?class?TestServlet?extends?HttpServlet?{

private?static?final?long?serialVersionUID?=?-1079073749217155506L;

private?SerializationContext?context?=?new?SerializationContext();

public?void?doPost(HttpServletRequest?request,?HttpServletResponse?response)?throws

ServletException,?IOException?{

response.setContentType("application/x-gzip-compressed");

Amf3Output?out?=?new?Amf3Output(context);

DeflaterOutputStream?stream?=?new?DeflaterOutputStream(new?DataOutputStream(response.getOutputStream()));

out.setOutputStream(stream);

Map?map?=?new?HashMap();

String[]?arr?=?"1,2,3,4,5".split(",");

map.put("datas",?arr);

map.put("userName","kinglong");

map.put("fullName",?"金龍工作室");

map.put("domain",?"klstudio.com");

out.writeObject(map);

stream.finish();

}

public?void?doGet(HttpServletRequest?request,?HttpServletResponse?response)?throws

ServletException,?IOException?{

doPost(request,?response);

}

}

import java.io.*;
import java.util.HashMap;
import java.util.Map;
import java.util.zip.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import flex.messaging.io.*;
import flex.messaging.io.amf.*;
public class TestServlet extends HttpServlet {
private static final long serialVersionUID = -1079073749217155506L;
private SerializationContext context = new SerializationContext();
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
response.setContentType("application/x-gzip-compressed");
Amf3Output out = new Amf3Output(context);
DeflaterOutputStream stream = new DeflaterOutputStream(new DataOutputStream(response.getOutputStream()));
out.setOutputStream(stream);
Map map = new HashMap();
String[] arr = "1,2,3,4,5".split(",");
map.put("datas", arr);
map.put("userName","kinglong");
map.put("fullName", "金龍工作室");
map.put("domain", "klstudio.com");
out.writeObject(map);
stream.finish();
}
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doPost(request, response);
}
}

因為AS3中的ByteArray支持zlib數據壓縮和解壓，所以我在服務端代碼里增加數據壓縮。

AMF3很適合Flash和后臺服務端的數據交換，我寫了這個范例，希望能給大家一參考。

總結

以上是生活随笔為你收集整理的as3调用java_[AS3]AMF3+JAVA的调用范例的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。