AMF3+JAVA的调用范例
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amf是Adobe独家开发的数据封装格式,Flash可以直接访问,由于它是基于二进制的数据传输,所以相对于xml SOAP、json、webService等基于字符串的数据格式,有数据体积小和效率高的特点。
amf目前有AMF0和AMF3两种格式,flash8以前版本只支持AMF0,flash9支持两种格式。AMF3比AMF0效率更高。
调试环境:
1、JDK 1.5
2、Resin 3.0
3、Flash CS3
4、flex-messaging-core.jar和flex-messaging-common.jar(这两个jar包文件可在Adobe的开源项目BlazeDS中找到)
Flash客户端代码:
/**
* ...
* @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("耗时:" + (end - start) + "毫秒");
trace(obj.fullName);
break;
}
}
}
}
Java服务端代码
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","k");
map.put("fullName", "金");
map.put("domain", "k");
out.writeObject(map);
stream.finish();
}
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
amf目前有AMF0和AMF3两种格式,flash8以前版本只支持AMF0,flash9支持两种格式。AMF3比AMF0效率更高。
调试环境:
1、JDK 1.5
2、Resin 3.0
3、Flash CS3
4、flex-messaging-core.jar和flex-messaging-common.jar(这两个jar包文件可在Adobe的开源项目BlazeDS中找到)
Flash客户端代码:
/**
* ...
* @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("耗时:" + (end - start) + "毫秒");
trace(obj.fullName);
break;
}
}
}
}
Java服务端代码
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","k");
map.put("fullName", "金");
map.put("domain", "k");
out.writeObject(map);
stream.finish();
}
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
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