Java使用TCP协议获取XML及其处理【续】

上一篇文章《Java使用TCP协议获取XML及其处理》（见：/article/2104611.html）中，介绍了用Java模拟Socket服务器端，与客户端进行TCP通讯的例子。今天在现场中，客户使用C#***的服务器端，与我们Java的客户端通讯出现了一个小问题，就是双方发送的XML信息出现乱码现象，客户端向服务器发送的请求信息头出现“/0”等乱字符，服务器端响应给客户端的XML中的中文出现乱码。我们考虑应该是编码不一致造成的问题，统一采用UTF-8编码。所以对上一篇文章中的代码进行了修正。

protected void onBoReadNoTest() throws Exception {
		Socket soc = null;
		String data = "";
		InetAddress addr = InetAddress.getByName("127.0.0.1");
		int serverPort = 1111;
		if (addr.isReachable(5000)) {
			System.out.println("SUCCESS - ping " + addr
					+ " with no interface specified");
			try {
				soc = new Socket(addr, serverPort);
				System.out.println("Socket Success!");
				DataInputStream in = new DataInputStream(soc.getInputStream());
				DataOutputStream out=new DataOutputStream(soc.getOutputStream());
				String str = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><cmd>ReadWeight</cmd>";
				byte[] b = str.getBytes();
				out.write(b);
				byte[] b2 = new byte[1024];
				int count = in.read(b2, 0, b2.length);
				data = new String(b2,0,count,"UTF-8");
				this.DOM(data);
			} catch (UnknownHostException e) {
				System.out.println("Socket Error:" + e.getMessage());
			} catch (EOFException e) {
				System.out.println("EOF:" + e.getMessage());
			} catch (IOException e) {
				System.out.println("IO:" + e.getMessage());
			} finally {
				if (soc != null)
					try {
						soc.close();
					} catch (IOException e) {/* close failed */
					}
			}
		} else {
			System.out.println("FAILURE - ping " + addr
					+ " with no interface specified");
		}

	}

DOM解析如下：

//	DOM解析方法
	public void DOM(String data) {  
        long lasting = System.currentTimeMillis();  
        System.out.println("解析XML开始...........");
        try {  
        	byte[] b = data.getBytes("UTF-8");
        	InputStream inp = new ByteArrayInputStream(b);
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();  
            DocumentBuilder builder = factory.newDocumentBuilder();  
            Document doc = builder.parse(inp);  
            NodeList nl = doc.getElementsByTagName("result"); 
            WeightVO wvo = new WeightVO();  
            for (int i = 0; i < nl.getLength(); i++) {  
                wvo.setCode(doc.getElementsByTagName("code").item(i).getFirstChild() == null ?null:doc.getElementsByTagName("code").item(i).getFirstChild().getNodeValue());  
                wvo.setWeight(doc.getElementsByTagName("weight").item(i).getFirstChild()==null? null:doc.getElementsByTagName("weight").item(i).getFirstChild().getNodeValue());  
                wvo.setErrmsg(doc.getElementsByTagName("errmsg").item(i).getFirstChild() == null ? null : doc.getElementsByTagName("errmsg").item(i).getFirstChild().getNodeValue());  
                wvo.setUtil(doc.getElementsByTagName("unit").item(i).getFirstChild()==null?null:doc.getElementsByTagName("unit").item(i).getFirstChild().getNodeValue());  
            }  
            getBillCardPanelWrapper().getBillCardPanel().getHeadItem("nweight").setValue(wvo.getWeight());
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
       
//        System.out.println("DOM RUNTIME 解析时间："  
//                + (System.currentTimeMillis() - lasting) + " MS");  
    }

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