微信消息处理JAXP-dom解析

 1 package cn.lihainan;
 2 
 3 import java.io.IOException;
 4 import java.io.InputStream;
 5 import java.io.PrintWriter;
 6 
 7 import javax.servlet.ServletException;
 8 import javax.servlet.ServletRequest;
 9 import javax.servlet.http.HttpServlet;
10 import javax.servlet.http.HttpServletRequest;
11 import javax.servlet.http.HttpServletResponse;
12 import javax.xml.parsers.DocumentBuilder;
13 import javax.xml.parsers.DocumentBuilderFactory;
14 import javax.xml.parsers.ParserConfigurationException;
15 
16 import org.w3c.dom.Document;
17 import org.w3c.dom.Node;
18 import org.xml.sax.SAXException;
19 
20 public class Get extends HttpServlet {
21 
22     public void doPost(HttpServletRequest request, HttpServletResponse response)
23     throws ServletException, IOException {
24 
25     try {
26         request.setCharacterEncoding("UTF-8");  
27         //response.setCharacterEncoding("UTF-8");
28         
29         response.setContentType("textml");
30         InputStream inputStream = request.getInputStream();
31         
32         
33         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
34         DocumentBuilder builder;
35         builder = factory.newDocumentBuilder();
36         Document document =  builder.parse(inputStream);
37         
38         
39         System.out.println(document.getInputEncoding());
40               
41         Node ToUserName = document.getElementsByTagName("ToUserName").item(0);      
42         System.out.println(ToUserName.getTextContent());
43         
44         Node FromUserName = document.getElementsByTagName("FromUserName").item(0);      
45         System.out.println(FromUserName.getTextContent());
46         
47         Node MsgType= document.getElementsByTagName("MsgType").item(0);      
48         System.out.println(MsgType.getTextContent());
49         
50         Node Content = document.getElementsByTagName("Content").item(0);      
51         System.out.println(Content.getTextContent());
52         
53         Node MsgId= document.getElementsByTagName("MsgId").item(0);      
54         System.out.println(MsgId.getTextContent());
55         
56         
57         
58         StringBuffer   out1   =   new   StringBuffer();
59         byte[]   b   =   new   byte[4096];
60         for   (int   n;   (n   =   inputStream.read(b))   !=   -1;)   {
61                 out1.append(new   String(b,   0,   n));
62         }
63         String value=out1.toString();
64         
65 
66         PrintWriter out = response.getWriter();
67 
68         out.println(document.getInputEncoding());
69         out.println("FromUserName(来自):");
70         out.println(FromUserName.getTextContent());
71         out.println("ToUserName(发送至):");
72         out.println(ToUserName.getTextContent());
73         out.println("CreateTime(时间):");
74         out.println("MsgType(消息类型):");
75         out.println(MsgType.getTextContent());
76         out.println("Content(文本内容):");
77         out.println(Content.getTextContent());
78         out.println("MsgId(文件消息标识号):");
79         out.println(MsgId.getTextContent());
80         } catch (ParserConfigurationException e) {
81         // TODO Auto-generated catch block
82         e.printStackTrace();
83         } catch (Exception e) {
84         // TODO Auto-generated catch block
85         e.printStackTrace();
86         }
87     }
88 
89 }