Java Web 服务性能优化实践

[java]代码库

public boolean handleMessage(MessageContext arg0) { 
	SOAPMessageContext ct = (SOAPMessageContext) arg0; 
	boolean isRequestFlag = (Boolean) arg0 
			.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY); 
	SOAPMessage msg = ct.getMessage(); 
	if (!isRequestFlag) { 
		try { 
			Object obj = ct.get("Attachments"); 
			Attachments atts = (Attachments) obj; 
			List list = atts.getContentIDList(); 
			for (int i = 1; i < list.size(); i++) { 
				String id = (String) list.get(i); 
				DataHandler d = atts.getDataHandler(id); 
				InputStream in = d.getInputStream(); 
				ByteArrayOutputStream out = new ByteArrayOutputStream(); 
				GZIPInputStream zip = new GZIPInputStream(in); 
				byte[] arr = new byte[1024]; 
				int n = 0; 
				while ((n = zip.read(arr)) > 0) { 
					out.write(arr, 0, n); 
				} 
				Document doc = DocumentBuilderFactory.newInstance() 
						.newDocumentBuilder() 
						.parse(new ByteArrayInputStream(out.toByteArray())); 
				SOAPBody body = msg.getSOAPBody(); 
				Node port = body.getChildNodes().item(0); 
				port.appendChild(doc.getFirstChild().getFirstChild()); 
			} 
		} catch (SOAPException e) { 
			e.printStackTrace(); 
		} catch (IOException e) { 
			e.printStackTrace(); 
		} catch (SAXException e) { 
			e.printStackTrace(); 
		} catch (ParserConfigurationException e) { 
			e.printStackTrace(); 
		} 
	} 
	return true; 
}//源代码片段来自云代码http://yuncode.net