1 package cn.lihainan.test;
2 import java.io.BufferedReader;
3 import java.io.ByteArrayInputStream;
4 import java.io.ByteArrayOutputStream;
5 import java.io.FileInputStream;
6 import java.io.IOException;
7 import java.io.InputStream;
8 import java.io.InputStreamReader;
9 import java.io.PrintWriter;
10 import java.text.SimpleDateFormat;
11
12 import javax.servlet.ServletException;
13 import javax.servlet.ServletRequest;
14 import javax.servlet.http.HttpServlet;
15 import javax.servlet.http.HttpServletRequest;
16 import javax.servlet.http.HttpServletResponse;
17 import javax.xml.parsers.DocumentBuilder;
18 import javax.xml.parsers.DocumentBuilderFactory;
19 import javax.xml.parsers.ParserConfigurationException;
20
21
22 import org.dom4j.io.SAXReader;
23 import org.dom4j.io.XMLWriter;
24
25 import org.w3c.dom.Document;
26 import org.w3c.dom.Node;
27
28
29 public class Demo1 extends HttpServlet {
30 public void doPost(HttpServletRequest request, HttpServletResponse response)
31 throws ServletException, IOException {
32 try { // 将请求、响应的编码均设置为UTF-8（防止中文乱码）
33 request.setCharacterEncoding("utf-8");
34 response.setContentType("textml;charset=utf-8");
35 InputStream inputStream = request.getInputStream();
36
37
38
39 String result = readFromInputStream(inputStream);
40
41
42
43 PrintWriter out = response.getWriter();
44
45 out.println("原始消息：");
46
47 out.println(result);
48
49 //解析 建立document解析
50 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
51 DocumentBuilder builder;
52 builder = factory.newDocumentBuilder();
53
54 InputStream xmlStream = new ByteArrayInputStream(result.getBytes("UTF-8"));
55 Document document = builder.parse(xmlStream);
56 //定义节点 根据节点从document中找到要输出的
57 Node ToUserName = document.getElementsByTagName("ToUserName").item(0);
58 System.out.println(ToUserName.getTextContent());
59
60 Node FromUserName = document.getElementsByTagName("FromUserName").item(0);
61 System.out.println(FromUserName.getTextContent());
62
63 Node MsgType= document.getElementsByTagName("MsgType").item(0);
64 System.out.println(MsgType.getTextContent());
65
66 Node Content = document.getElementsByTagName("Content").item(0);
67 System.out.println(Content.getTextContent());
68
69 Node MsgId= document.getElementsByTagName("MsgId").item(0);
70 System.out.println(MsgId.getTextContent());
71
72
73 out.println();
74 //输出
75 out.println("解析结果：");
76 out.print("FromUserName(来自):");
77 out.println(FromUserName.getTextContent());
78 out.print("ToUserName(发送至):");
79 out.println(ToUserName.getTextContent());
80 out.print("CreateTime(时间):");
81
82 Node createTime= document.getElementsByTagName("CreateTime").item(0);
83 int t = Integer.parseInt(createTime.getTextContent());
84 SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd hh:mm:ss");
85 out.println(format.format((long)t*1000L));
86 out.print("MsgType(消息类型):");
87 out.println(MsgType.getTextContent());
88 out.print("Content(文本内容):");
89 out.println(Content.getTextContent());
90 out.print("MsgId(文件消息标识号):");
91 out.println(MsgId.getTextContent());
92 } catch (ParserConfigurationException e) {
93 // TODO Auto-generated catch block
94 e.printStackTrace();
95 } catch (Exception e) {
96 // TODO Auto-generated catch block
97 e.printStackTrace();
98 }
99 }
100
101 //将输入流InputStream变为String
102 public String readFromInputStream(InputStream in) throws IOException {
103 ByteArrayOutputStream baos = new ByteArrayOutputStream();
104 byte[] buffer = new byte[1024];
105 int len = -1;
106 while ((len = in.read(buffer)) != -1) {
107 baos.write(buffer, 0, len);
108 }
109 baos.close();
110 in.close();
111 // 解析内容 看网上更改 输出中文乱码 但是未解决 已知输入流为gbk 输出为utf-8 求如何转换
112 byte[] lens = baos.toByteArray();
113 String result = new String(lens,"UTF-8");
114
115 return result;
116
117 }
118 }
