分享java版微信机器人的实现方法

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
   
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
   
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
   
import com.eiyoung.wechat.web.utils.Message;
import com.eiyoung.wechat.web.utils.ReplyMessage;
import org.apache.commons.io.IOUtils;
   
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;
   
   
public class WeChat extends HttpServlet {
    private static final long serialVersionUID = 1L;
   
   
    public WeChat() {
        super();
    }
   
    /**
     * 验证
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter pw = response.getWriter();
        String echo = request.getParameter("echostr");
        System.out.print(echo);
        echo = new String(echo.getBytes("ISO-8859-1"),"UTF-8");
        pw.println(echo);
    }
   
   
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
       response.setContentType("text/html;charset=UTF-8");
        PrintWriter pw = response.getWriter();
        String wxMsgXml = IOUtils.toString(request.getInputStream(),"utf-8");
        Message textMsg = null;
        try {
            textMsg = getMessage(wxMsgXml);
        } catch (Exception e) {
            e.printStackTrace();
        }
        StringBuffer replyMsg = new StringBuffer();
        if(textMsg != null){
            //增加你所需要的处理逻辑，这里只是简单重复消息
            replyMsg.append("您给我的消息是：");
            replyMsg.append(textMsg.getContent());
        }
        else{
            replyMsg.append(":)不是文本的消息，我暂时看不懂");
        }
        String returnXml = getReplyMessage(replyMsg.toString(), textMsg.getFromUserName(),textMsg.getToUserName());
        System.out.print(textMsg.toString());
        System.out.print(returnXml.toString());
        pw.println(returnXml);
    }
   
    private Message getMessage(String xml){
        XStream xstream = new XStream(new DomDriver());
        xstream.alias("xml", Message.class);
        xstream.aliasField("ToUserName", Message.class, "toUserName");
        xstream.aliasField("FromUserName", Message.class, "fromUserName");
        xstream.aliasField("CreateTime", Message.class, "createTime");
        xstream.aliasField("MsgType", Message.class, "messageType");
        xstream.aliasField("Content", Message.class, "content");
        xstream.aliasField("MsgId", Message.class, "msgId");
        Message Message = (Message)xstream.fromXML(xml);
        return Message;
    }
   
    private String getReplyMessage(String replyMsg,String toUserName,String fromUserName){
        ReplyMessage we = new ReplyMessage();
        we.setMessageType("text");
        we.setFuncFlag("0");
        we.setCreateTime(new Long(new Date().getTime()).toString());
        we.setContent(replyMsg);
        we.setToUserName(toUserName);
        we.setFromUserName(fromUserName);
        XStream xstream = new XStream(new DomDriver());
        xstream.alias("xml", ReplyMessage.class);
        xstream.aliasField("ToUserName", ReplyMessage.class, "toUserName");
        xstream.aliasField("FromUserName", ReplyMessage.class, "fromUserName");
        xstream.aliasField("CreateTime", ReplyMessage.class, "createTime");
        xstream.aliasField("MsgType", ReplyMessage.class, "messageType");
        xstream.aliasField("Content", ReplyMessage.class, "content");
        xstream.aliasField("FuncFlag", ReplyMessage.class, "funcFlag");
        String xml =xstream.toXML(we);
        return xml;
    }
   
   
}
   
===========================================================================
package com.eiyoung.wechat.web.utils;
   
/**
 * Created with IntelliJ IDEA.
 * User: sb
 * Date: 8/1/13
 * Time: 10:37 PM
 * To change this template use File | Settings | File Templates.
 */
public class ReplyMessage {
   
    private String FuncFlag;//消息编号
    private String fromUserName;//发送人
    private String toUserName;//接收人
    private String content;//内容
    private String messageType;//消息类型
    private String createTime;//创建日期
   
   
    public String getContent() {
        return content;
    }
   
    public void setContent(String content) {
        this.content = content;
    }
   
    public String getMessageType() {
        return messageType;
    }
   
    public void setMessageType(String messageType) {
        this.messageType = messageType;
    }
   
    public String getFromUserName() {
        return fromUserName;
    }
   
    public void setFromUserName(String fromUserName) {
        this.fromUserName = fromUserName;
    }
   
    public String getToUserName() {
        return toUserName;
    }
   
    public void setToUserName(String toUserName) {
        this.toUserName = toUserName;
    }
   
    public String getCreateTime() {
        return createTime;
    }
   
    public void setCreateTime(String createTime) {
        this.createTime = createTime;
    }
   
    public String getFuncFlag() {
        return FuncFlag;
    }
   
    public void setFuncFlag(String funcFlag) {
        FuncFlag = funcFlag;
    }
   
    public String toString(){
        return "createTime:"+getCreateTime()+"\ntoUserName:"+getToUserName()+"\n FromUserName:"+getFromUserName()+"\nmessageType:"+getMessageType()+"\ncontent:"+getContent();
    }
}
   
===============================================================================
package com.eiyoung.wechat.web.utils;
   
import java.util.Date;
   
/**
 * Created with IntelliJ IDEA.
 * User: sb
 * Date: 8/1/13
 * Time: 10:37 PM
 * To change this template use File | Settings | File Templates.
 */
public class Message {
   
    private String msgId;//消息编号
    private String fromUserName;//发送人
    private String toUserName;//接收人
    private String content;//内容
    private String messageType;//消息类型
    private String createTime;//创建日期
   
   
    public String getContent() {
        return content;
    }
   
    public void setContent(String content) {
        this.content = content;
    }
   
    public String getMessageType() {
        return messageType;
    }
   
    public void setMessageType(String messageType) {
        this.messageType = messageType;
    }
   
    public String getFromUserName() {
        return fromUserName;
    }
   
    public void setFromUserName(String fromUserName) {
        this.fromUserName = fromUserName;
    }
   
    public String getToUserName() {
        return toUserName;
    }
   
    public void setToUserName(String toUserName) {
        this.toUserName = toUserName;
    }
   
    public String getCreateTime() {
        return createTime;
    }
   
    public void setCreateTime(String createTime) {
        this.createTime = createTime;
    }
   
    public String getMsgId() {
        return msgId;
    }
   
    public void setMsgId(String msgId) {
        this.msgId = msgId;
    }
   
    public String toString(){
        return "msgId:"+getMsgId()+"\ncreateTime:"+getCreateTime()+"\ntoUserName:"+getToUserName()+"\n FromUserName:"+getFromUserName()+"\nmessageType:"+getMessageType()+"\ncontent:"+getContent();
    }
}
==============================================================================
maven
 <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>3.0-alpha-1</version>
    </dependency>
      <dependency>
          <groupId>joda-time</groupId>
          <artifactId>joda-time</artifactId>
          <version>2.2</version>
      </dependency>
      <dependency>
          <groupId>org.apache.commons</groupId>
          <artifactId>commons-io</artifactId>
          <version>1.3.2</version>
      </dependency>
      <dependency>
          <groupId>com.thoughtworks.xstream</groupId>
          <artifactId>xstream</artifactId>
          <version>1.4.3</version>
      </dependency>