java amf3格式数据的接收与响应

最新推荐文章于 2021-03-04 08:21:33 发布

最新推荐文章于 2021-03-04 08:21:33 发布 · 691 阅读

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#java #amf3 #flex

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本文探讨了AMF3协议在文件操作场景下的实现细节，包括如何通过HTTP请求获取并解析AMF3对象，以及如何将ASObject序列化为AMF3格式进行响应。重点介绍了AMF3输入和输出流的使用，以及它们在处理复杂数据结构时的优势。

package org.jivesoftware.openfire.plugin.mongodb.file;

import javax.servlet.ServletInputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import flex.messaging.io.SerializationContext;
import flex.messaging.io.amf.ASObject;
import flex.messaging.io.amf.Amf3Input;
import flex.messaging.io.amf.Amf3Output;
/**
* AMF3 handle
*
* @author dhdu@qq.com
*
*/
public class Amf3 {
private final static Amf3 instance = new Amf3();
private static SerializationContext serializationContext;

//
private Amf3() {
}

//
public static Amf3 getInstance() throws Exception {
return instance;
}

static {
serializationContext = new SerializationContext();
}

public ASObject getASObject(HttpServletRequest request) {
  ASObject aso=null;
  try {
   ServletInputStream in=request.getInputStream();
   Amf3Input aip = new Amf3Input(serializationContext);
   if (in != null) {
    aip.setInputStream(in);
    aso = (ASObject) aip.readObject();

    //in.close();
    aip.close();
   }

  } catch (Exception e) {
   e.printStackTrace();
  }
  return aso;
}

public void writeASObject(HttpServletResponse response,ASObject a){
  Amf3Output amfOut=null;
  try {
   response.setContentType("application/x-gzip-compressed");
   ServletOutputStream os=response.getOutputStream();
   amfOut = new Amf3Output(serializationContext);
   //ByteArrayOutputStream outStream = new ByteArrayOutputStream();
   //DataOutputStream dataOutStream = new DataOutputStream(outStream);
   amfOut.setOutputStream(os);
   amfOut.writeObject(a);

   //byte[] bytes=outStream.toByteArray();
   //os.write(bytes);

   os.flush();
   //os.close();
   //outStream.flush();
   //outStream.close();
   //dataOutStream.flush();
   //dataOutStream.close();
   amfOut.flush();
   amfOut.close();

  }catch(Exception e)
  {
   e.printStackTrace();
  }

}
}