在阅读本文之前,应对微信公众平台的官方开发文档有所了解,知道接收和发送的都是xml格式的数据。另外,在做内容回复时用到了图灵机器人的api接口,这是一个自然语言解析的开放平台,可以帮我们解决整个微信开发过程中最困难的问题,此处不多讲,下面会有其详细的调用方式。
1.1 在登录微信官方平台之后,开启开发者模式,此时需要我们填写url和token,所谓url就是我们自己服务器的接口,用WechatServlet.java来实现,相关解释已经在注释中说明,代码如下:
[java] view
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package demo.servlet;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import demo.process.WechatProcess;
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/**
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* 微信服务端收发消息接口
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*
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* @author pamchen-1
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*
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*/
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public class WechatServlet extends HttpServlet {
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/**
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* The doGet method of the servlet.
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*
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* This method is called when a form has its tag value method equals to get.
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*
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* @param request
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* the request send by the client to the server
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* @param response
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* the response send by the server to the client
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* @throws ServletException
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* if an error occurred
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* @throws IOException
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* if an error occurred
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*/
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public void doGet(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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request.setCharacterEncoding("UTF-8");
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response.setCharacterEncoding("UTF-8");
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/** 读取接收到的xml消息 */
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StringBuffer sb = new StringBuffer();
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InputStream is = request.getInputStream();
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InputStreamReader isr = new InputStreamReader(is, "UTF-8");
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BufferedReader br = new BufferedReader(isr);
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String s = "";
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while ((s = br.readLine()) != null) {
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sb.append(s);
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}
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String xml = sb.toString(); //次即为接收到微信端发送过来的xml数据
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String result = "";
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/** 判断是否是微信接入激活验证,只有首次接入验证时才会收到echostr参数,此时需要把它直接返回 */
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String echostr = request.getParameter("echostr");
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if (echostr != null && echostr.length() > 1) {
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result = echostr;
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} else {
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//正常的微信处理流程
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result = new WechatProcess().processWechatMag(xml);
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}
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try {
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OutputStream os = response.getOutputStream();
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os.write(result.getBytes("UTF-8"));
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os.flush();
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os.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* The doPost method of the servlet.
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*
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* This method is called when a form has its tag value method equals to
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* post.
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*
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* @param request
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* the request send by the client to the server
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* @param response
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* the response send by the server to the client
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* @throws ServletException
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* if an error occurred
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* @throws IOException
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* if an error occurred
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*/
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public void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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doGet(request, response);
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}
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}
1.2 相应的web.xml配置信息如下,在生成WechatServlet.java的同时,可自动生成web.xml中的配置。前面所提到的url处可以填写例如:http;//服务器地址/项目名/wechat.do
[html] view
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xmlns="http://java.sun.com/xml/ns/javaee"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
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http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
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This is the description of my J2EE component -
This is the display name of my J2EE component -
WechatServlet -
demo.servlet.WechatServlet -
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WechatServlet -
/wechat.do -
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index.jsp -
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1.3 通过以上代码,我们已经实现了微信公众平台开发的框架,即开通开发者模式并成功接入、接收消息和发送消息这三个步骤。
下面就讲解其核心部分——解析接收到的xml数据,并以文本类消息为例,通过图灵机器人api接口实现智能回复。
2.1 首先看一下整体流程处理代码,包括:xml数据处理、调用图灵api、封装返回的xml数据。
[java] view
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package demo.process;
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import java.util.Date;
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import demo.entity.ReceiveXmlEntity;
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/**
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* 微信xml消息处理流程逻辑类
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* @author pamchen-1
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*
-
*/
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public class WechatProcess {
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/**
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* 解析处理xml、获取智能回复结果(通过图灵机器人api接口)
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* @param xml 接收到的微信数据
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* @return 最终的解析结果(xml格式数据)
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*/
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public String processWechatMag(String xml){
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/** 解析xml数据 */
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ReceiveXmlEntity xmlEntity = new ReceiveXmlProcess().getMsgEntity(xml);
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/** 以文本消息为例,调用图灵机器人api接口,获取回复内容 */
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String result = "";
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if("text".endsWith(xmlEntity.getMsgType())){
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result = new TulingApiProcess().getTulingResult(xmlEntity.getContent());
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}
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/** 此时,如果用户输入的是“你好”,在经过上面的过程之后,result为“你也好”类似的内容
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* 因为最终回复给微信的也是xml格式的数据,所有需要将其封装为文本类型返回消息
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* */
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result = new FormatXmlProcess().formatXmlAnswer(xmlEntity.getFromUserName(), xmlEntity.getToUserName(), result);
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return result;
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}
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}
2.2 解析接收到的xml数据,此处有两个类,ReceiveXmlEntity.java和ReceiveXmlProcess.java,通过反射的机制动态调用实体类中的set方法,可以避免很多重复的判断,提高代码效率,代码如下:
[java] view
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package demo.entity;
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/**
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* 接收到的微信xml实体类
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* @author pamchen-1
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*
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*/
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public class ReceiveXmlEntity {
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private String ToUserName="";
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private String FromUserName="";
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private String CreateTime="";
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private String MsgType="";
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private String MsgId="";
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private String Event="";
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private String EventKey="";
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private String Ticket="";
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private String Latitude="";
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private String Longitude="";
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private String Precision="";
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private String PicUrl="";
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private String MediaId="";
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private String Title="";
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private String Description="";
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private String Url="";
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private String Location_X="";
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private String Location_Y="";
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private String Scale="";
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private String Label="";
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private String Content="";
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private String Format="";
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private String Recognition="";
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public String getRecognition() {
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return Recognition;
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}
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public void setRecognition(String recognition) {
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Recognition = recognition;
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}
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public String getFormat() {
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return Format;
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}
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public void setFormat(String format) {
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Format = format;
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}
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public String getContent() {
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return Content;
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}
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public void setContent(String content) {
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Content = content;
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}
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public String getLocation_X() {
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return Location_X;
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}
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public void setLocation_X(String locationX) {
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Location_X = locationX;
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}
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public String getLocation_Y() {
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return Location_Y;
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}
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public void setLocation_Y(String locationY) {
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Location_Y = locationY;
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}
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public String getScale() {
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return Scale;
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}
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public void setScale(String scale) {
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Scale = scale;
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}
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public String getLabel() {
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return Label;
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}
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public void setLabel(String label) {
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Label = label;
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}
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public String getTitle() {
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return Title;
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}
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public void setTitle(String title) {
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Title = title;
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}
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public String getDescription() {
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return Description;
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}
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public void setDescription(String description) {
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Description = description;
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}
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public String getUrl() {
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return Url;
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}
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public void setUrl(String url) {
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Url = url;
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}
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public String getPicUrl() {
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return PicUrl;
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}
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public void setPicUrl(String picUrl) {
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PicUrl = picUrl;
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}
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public String getMediaId() {
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return MediaId;
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}
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public void setMediaId(String mediaId) {
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MediaId = mediaId;
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}
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public String getEventKey() {
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return EventKey;
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}
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public void setEventKey(String eventKey) {
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EventKey = eventKey;
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}
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public String getTicket() {
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return Ticket;
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}
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public void setTicket(String ticket) {
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Ticket = ticket;
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}
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public String getLatitude() {
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return Latitude;
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}
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public void setLatitude(String latitude) {
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Latitude = latitude;
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}
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public String getLongitude() {
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return Longitude;
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}
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public void setLongitude(String longitude) {
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Longitude = longitude;
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}
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public String getPrecision() {
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return Precision;
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}
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public void setPrecision(String precision) {
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Precision = precision;
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}
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public String getEvent() {
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return Event;
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}
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public void setEvent(String event) {
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Event = event;
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}
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public String getMsgId() {
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return MsgId;
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}
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public void setMsgId(String msgId) {
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MsgId = msgId;
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}
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public String getToUserName() {
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return ToUserName;
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}
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public void setToUserName(String toUserName) {
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ToUserName = toUserName;
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}
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public String getFromUserName() {
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return FromUserName;
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}
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public void setFromUserName(String fromUserName) {
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FromUserName = fromUserName;
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}
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public String getCreateTime() {
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return CreateTime;
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}
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public void setCreateTime(String createTime) {
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CreateTime = createTime;
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}
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public String getMsgType() {
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return MsgType;
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}
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public void setMsgType(String msgType) {
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MsgType = msgType;
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}
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}
[java] view
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package demo.process;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.Iterator;
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import org.dom4j.Document;
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import org.dom4j.DocumentHelper;
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import org.dom4j.Element;
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import demo.entity.ReceiveXmlEntity;
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/**
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* 解析接收到的微信xml,返回消息对象
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* @author pamchen-1
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*
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*/
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public class ReceiveXmlProcess {
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/**
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* 解析微信xml消息
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* @param strXml
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* @return
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*/
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public ReceiveXmlEntity getMsgEntity(String strXml){
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ReceiveXmlEntity msg = null;
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try {
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if (strXml.length() <= 0 || strXml == null)
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return null;
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// 将字符串转化为XML文档对象
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Document document = DocumentHelper.parseText(strXml);
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// 获得文档的根节点
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Element root = document.getRootElement();
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// 遍历根节点下所有子节点
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Iterator> iter = root.elementIterator();
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// 遍历所有结点
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msg = new ReceiveXmlEntity();
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//利用反射机制,调用set方法
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//获取该实体的元类型
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Class> c = Class.forName("demo.entity.ReceiveXmlEntity");
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msg = (ReceiveXmlEntity)c.newInstance();//创建这个实体的对象
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while(iter.hasNext()){
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Element ele = (Element)iter.next();
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//获取set方法中的参数字段(实体类的属性)
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Field field = c.getDeclaredField(ele.getName());
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//获取set方法,field.getType())获取它的参数数据类型
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Method method = c.getDeclaredMethod("set"+ele.getName(), field.getType());
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//调用set方法
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method.invoke(msg, ele.getText());
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}
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} catch (Exception e) {
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// TODO: handle exception
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System.out.println("xml 格式异常: "+ strXml);
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e.printStackTrace();
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}
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return msg;
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}
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}
2.3 调用图灵机器人api接口,获取智能回复内容:
[java] view
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package demo.process;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.net.URLEncoder;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.ClientProtocolException;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.util.EntityUtils;
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import org.json.JSONException;
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import org.json.JSONObject;
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/**
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* 调用图灵机器人api接口,获取智能回复内容
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* @author pamchen-1
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*
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*/
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public class TulingApiProcess {
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/**
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* 调用图灵机器人api接口,获取智能回复内容,解析获取自己所需结果
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* @param content
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* @return
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*/
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public String getTulingResult(String content){
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/** 此处为图灵api接口,参数key需要自己去注册申请,先以11111111代替 */
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String apiUrl = "http://www.tuling123.com/openapi/api?key=11111111&info=";
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String param = "";
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try {
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param = apiUrl+URLEncoder.encode(content,"utf-8");
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} catch (UnsupportedEncodingException e1) {
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// TODO Auto-generated catch block
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e1.printStackTrace();
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} //将参数转为url编码
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/** 发送httpget请求 */
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HttpGet request = new HttpGet(param);
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String result = "";
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try {
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HttpResponse response = HttpClients.createDefault().execute(request);
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if(response.getStatusLine().getStatusCode()==200){
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result = EntityUtils.toString(response.getEntity());
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}
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} catch (ClientProtocolException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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/** 请求失败处理 */
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if(null==result){
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return "对不起,你说的话真是太高深了……";
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}
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try {
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JSONObject json = new JSONObject(result);
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//以code=100000为例,参考图灵机器人api文档
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if(100000==json.getInt("code")){
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result = json.getString("text");
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}
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} catch (JSONException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return result;
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}
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}
2.4 将结果封装为微信规定的xml格式,并返回给1.1中创建的servlet接口。
[java] view
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package demo.process;
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import java.util.Date;
-
/**
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* 封装最终的xml格式结果
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* @author pamchen-1
-
*
-
*/
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public class FormatXmlProcess {
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/**
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* 封装文字类的返回消息
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* @param to
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* @param from
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* @param content
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* @return
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*/
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public String formatXmlAnswer(String to, String from, String content) {
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StringBuffer sb = new StringBuffer();
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Date date = new Date();
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sb.append("
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sb.append(to);
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sb.append("]]>
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sb.append(from);
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sb.append("]]>
"); -
sb.append(date.getTime());
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sb.append("
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sb.append(content);
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sb.append("]]>
0 "); -
return sb.toString();
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}
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}
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- xmlns="http://java.sun.com/xml/ns/javaee"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
- http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
This is the description of my J2EE component This is the display name of my J2EE component WechatServlet demo.servlet.WechatServlet WechatServlet /wechat.do index.jsp
1.3 通过以上代码,我们已经实现了微信公众平台开发的框架,即开通开发者模式并成功接入、接收消息和发送消息这三个步骤。
下面就讲解其核心部分——解析接收到的xml数据,并以文本类消息为例,通过图灵机器人api接口实现智能回复。
2.1 首先看一下整体流程处理代码,包括:xml数据处理、调用图灵api、封装返回的xml数据。
[java] view
plain copy
-
package demo.process;
-
-
import java.util.Date;
-
-
import demo.entity.ReceiveXmlEntity;
-
-
/**
-
* 微信xml消息处理流程逻辑类
-
* @author pamchen-1
-
*
-
*/
-
public class WechatProcess {
-
/**
-
* 解析处理xml、获取智能回复结果(通过图灵机器人api接口)
-
* @param xml 接收到的微信数据
-
* @return 最终的解析结果(xml格式数据)
-
*/
-
public String processWechatMag(String xml){
-
/** 解析xml数据 */
-
ReceiveXmlEntity xmlEntity = new ReceiveXmlProcess().getMsgEntity(xml);
-
-
/** 以文本消息为例,调用图灵机器人api接口,获取回复内容 */
-
String result = "";
-
if("text".endsWith(xmlEntity.getMsgType())){
-
result = new TulingApiProcess().getTulingResult(xmlEntity.getContent());
-
}
-
-
/** 此时,如果用户输入的是“你好”,在经过上面的过程之后,result为“你也好”类似的内容
-
* 因为最终回复给微信的也是xml格式的数据,所有需要将其封装为文本类型返回消息
-
* */
-
result = new FormatXmlProcess().formatXmlAnswer(xmlEntity.getFromUserName(), xmlEntity.getToUserName(), result);
-
-
return result;
-
}
-
}
2.2 解析接收到的xml数据,此处有两个类,ReceiveXmlEntity.java和ReceiveXmlProcess.java,通过反射的机制动态调用实体类中的set方法,可以避免很多重复的判断,提高代码效率,代码如下:
[java] view
plain copy
-
package demo.entity;
-
/**
-
* 接收到的微信xml实体类
-
* @author pamchen-1
-
*
-
*/
-
public class ReceiveXmlEntity {
-
private String ToUserName="";
-
private String FromUserName="";
-
private String CreateTime="";
-
private String MsgType="";
-
private String MsgId="";
-
private String Event="";
-
private String EventKey="";
-
private String Ticket="";
-
private String Latitude="";
-
private String Longitude="";
-
private String Precision="";
-
private String PicUrl="";
-
private String MediaId="";
-
private String Title="";
-
private String Description="";
-
private String Url="";
-
private String Location_X="";
-
private String Location_Y="";
-
private String Scale="";
-
private String Label="";
-
private String Content="";
-
private String Format="";
-
private String Recognition="";
-
-
public String getRecognition() {
-
return Recognition;
-
}
-
public void setRecognition(String recognition) {
-
Recognition = recognition;
-
}
-
public String getFormat() {
-
return Format;
-
}
-
public void setFormat(String format) {
-
Format = format;
-
}
-
public String getContent() {
-
return Content;
-
}
-
public void setContent(String content) {
-
Content = content;
-
}
-
public String getLocation_X() {
-
return Location_X;
-
}
-
public void setLocation_X(String locationX) {
-
Location_X = locationX;
-
}
-
public String getLocation_Y() {
-
return Location_Y;
-
}
-
public void setLocation_Y(String locationY) {
-
Location_Y = locationY;
-
}
-
public String getScale() {
-
return Scale;
-
}
-
public void setScale(String scale) {
-
Scale = scale;
-
}
-
public String getLabel() {
-
return Label;
-
}
-
public void setLabel(String label) {
-
Label = label;
-
}
-
public String getTitle() {
-
return Title;
-
}
-
public void setTitle(String title) {
-
Title = title;
-
}
-
public String getDescription() {
-
return Description;
-
}
-
public void setDescription(String description) {
-
Description = description;
-
}
-
public String getUrl() {
-
return Url;
-
}
-
public void setUrl(String url) {
-
Url = url;
-
}
-
public String getPicUrl() {
-
return PicUrl;
-
}
-
public void setPicUrl(String picUrl) {
-
PicUrl = picUrl;
-
}
-
public String getMediaId() {
-
return MediaId;
-
}
-
public void setMediaId(String mediaId) {
-
MediaId = mediaId;
-
}
-
public String getEventKey() {
-
return EventKey;
-
}
-
public void setEventKey(String eventKey) {
-
EventKey = eventKey;
-
}
-
public String getTicket() {
-
return Ticket;
-
}
-
public void setTicket(String ticket) {
-
Ticket = ticket;
-
}
-
public String getLatitude() {
-
return Latitude;
-
}
-
public void setLatitude(String latitude) {
-
Latitude = latitude;
-
}
-
public String getLongitude() {
-
return Longitude;
-
}
-
public void setLongitude(String longitude) {
-
Longitude = longitude;
-
}
-
public String getPrecision() {
-
return Precision;
-
}
-
public void setPrecision(String precision) {
-
Precision = precision;
-
}
-
public String getEvent() {
-
return Event;
-
}
-
public void setEvent(String event) {
-
Event = event;
-
}
-
public String getMsgId() {
-
return MsgId;
-
}
-
public void setMsgId(String msgId) {
-
MsgId = msgId;
-
}
-
public String getToUserName() {
-
return ToUserName;
-
}
-
public void setToUserName(String toUserName) {
-
ToUserName = toUserName;
-
}
-
public String getFromUserName() {
-
return FromUserName;
-
}
-
public void setFromUserName(String fromUserName) {
-
FromUserName = fromUserName;
-
}
-
public String getCreateTime() {
-
return CreateTime;
-
}
-
public void setCreateTime(String createTime) {
-
CreateTime = createTime;
-
}
-
public String getMsgType() {
-
return MsgType;
-
}
-
public void setMsgType(String msgType) {
-
MsgType = msgType;
-
}
-
}
[java] view
plain copy
-
package demo.process;
-
-
import java.lang.reflect.Field;
-
import java.lang.reflect.Method;
-
import java.util.Iterator;
-
import org.dom4j.Document;
-
import org.dom4j.DocumentHelper;
-
import org.dom4j.Element;
-
-
import demo.entity.ReceiveXmlEntity;
-
/**
-
* 解析接收到的微信xml,返回消息对象
-
* @author pamchen-1
-
*
-
*/
-
public class ReceiveXmlProcess {
-
/**
-
* 解析微信xml消息
-
* @param strXml
-
* @return
-
*/
-
public ReceiveXmlEntity getMsgEntity(String strXml){
-
ReceiveXmlEntity msg = null;
-
try {
-
if (strXml.length() <= 0 || strXml == null)
-
return null;
-
-
// 将字符串转化为XML文档对象
-
Document document = DocumentHelper.parseText(strXml);
-
// 获得文档的根节点
-
Element root = document.getRootElement();
-
// 遍历根节点下所有子节点
-
Iterator> iter = root.elementIterator();
-
-
// 遍历所有结点
-
msg = new ReceiveXmlEntity();
-
//利用反射机制,调用set方法
-
//获取该实体的元类型
-
Class> c = Class.forName("demo.entity.ReceiveXmlEntity");
-
msg = (ReceiveXmlEntity)c.newInstance();//创建这个实体的对象
-
-
while(iter.hasNext()){
-
Element ele = (Element)iter.next();
-
//获取set方法中的参数字段(实体类的属性)
-
Field field = c.getDeclaredField(ele.getName());
-
//获取set方法,field.getType())获取它的参数数据类型
-
Method method = c.getDeclaredMethod("set"+ele.getName(), field.getType());
-
//调用set方法
-
method.invoke(msg, ele.getText());
-
}
-
} catch (Exception e) {
-
// TODO: handle exception
-
System.out.println("xml 格式异常: "+ strXml);
-
e.printStackTrace();
-
}
-
return msg;
-
}
-
}
2.3 调用图灵机器人api接口,获取智能回复内容:
[java] view
plain copy
-
package demo.process;
-
-
import java.io.IOException;
-
import java.io.UnsupportedEncodingException;
-
import java.net.URLEncoder;
-
-
import org.apache.http.HttpResponse;
-
import org.apache.http.client.ClientProtocolException;
-
import org.apache.http.client.methods.HttpGet;
-
import org.apache.http.impl.client.HttpClients;
-
import org.apache.http.util.EntityUtils;
-
import org.json.JSONException;
-
import org.json.JSONObject;
-
-
/**
-
* 调用图灵机器人api接口,获取智能回复内容
-
* @author pamchen-1
-
*
-
*/
-
public class TulingApiProcess {
-
/**
-
* 调用图灵机器人api接口,获取智能回复内容,解析获取自己所需结果
-
* @param content
-
* @return
-
*/
-
public String getTulingResult(String content){
-
/** 此处为图灵api接口,参数key需要自己去注册申请,先以11111111代替 */
-
String apiUrl = "http://www.tuling123.com/openapi/api?key=11111111&info=";
-
String param = "";
-
try {
-
param = apiUrl+URLEncoder.encode(content,"utf-8");
-
} catch (UnsupportedEncodingException e1) {
-
// TODO Auto-generated catch block
-
e1.printStackTrace();
-
} //将参数转为url编码
-
-
/** 发送httpget请求 */
-
HttpGet request = new HttpGet(param);
-
String result = "";
-
try {
-
HttpResponse response = HttpClients.createDefault().execute(request);
-
if(response.getStatusLine().getStatusCode()==200){
-
result = EntityUtils.toString(response.getEntity());
-
}
-
} catch (ClientProtocolException e) {
-
e.printStackTrace();
-
} catch (IOException e) {
-
e.printStackTrace();
-
}
-
/** 请求失败处理 */
-
if(null==result){
-
return "对不起,你说的话真是太高深了……";
-
}
-
-
try {
-
JSONObject json = new JSONObject(result);
-
//以code=100000为例,参考图灵机器人api文档
-
if(100000==json.getInt("code")){
-
result = json.getString("text");
-
}
-
} catch (JSONException e) {
-
// TODO Auto-generated catch block
-
e.printStackTrace();
-
}
-
return result;
-
}
-
}
2.4 将结果封装为微信规定的xml格式,并返回给1.1中创建的servlet接口。
[java] view
plain copy
-
package demo.process;
-
-
import java.util.Date;
-
/**
-
* 封装最终的xml格式结果
-
* @author pamchen-1
-
*
-
*/
-
public class FormatXmlProcess {
-
/**
-
* 封装文字类的返回消息
-
* @param to
-
* @param from
-
* @param content
-
* @return
-
*/
-
public String formatXmlAnswer(String to, String from, String content) {
-
StringBuffer sb = new StringBuffer();
-
Date date = new Date();
-
sb.append("
-
sb.append(to);
-
sb.append("]]>
-
sb.append(from);
-
sb.append("]]>
"); -
sb.append(date.getTime());
-
sb.append("
-
sb.append(content);
-
sb.append("]]>
0 "); -
return sb.toString();
-
}
-
}
- package demo.entity;
- /**
- * 接收到的微信xml实体类
- * @author pamchen-1
- *
- */
- public class ReceiveXmlEntity {
- private String ToUserName="";
- private String FromUserName="";
- private String CreateTime="";
- private String MsgType="";
- private String MsgId="";
- private String Event="";
- private String EventKey="";
- private String Ticket="";
- private String Latitude="";
- private String Longitude="";
- private String Precision="";
- private String PicUrl="";
- private String MediaId="";
- private String Title="";
- private String Description="";
- private String Url="";
- private String Location_X="";
- private String Location_Y="";
- private String Scale="";
- private String Label="";
- private String Content="";
- private String Format="";
- private String Recognition="";
- public String getRecognition() {
- return Recognition;
- }
- public void setRecognition(String recognition) {
- Recognition = recognition;
- }
- public String getFormat() {
- return Format;
- }
- public void setFormat(String format) {
- Format = format;
- }
- public String getContent() {
- return Content;
- }
- public void setContent(String content) {
- Content = content;
- }
- public String getLocation_X() {
- return Location_X;
- }
- public void setLocation_X(String locationX) {
- Location_X = locationX;
- }
- public String getLocation_Y() {
- return Location_Y;
- }
- public void setLocation_Y(String locationY) {
- Location_Y = locationY;
- }
- public String getScale() {
- return Scale;
- }
- public void setScale(String scale) {
- Scale = scale;
- }
- public String getLabel() {
- return Label;
- }
- public void setLabel(String label) {
- Label = label;
- }
- public String getTitle() {
- return Title;
- }
- public void setTitle(String title) {
- Title = title;
- }
- public String getDescription() {
- return Description;
- }
- public void setDescription(String description) {
- Description = description;
- }
- public String getUrl() {
- return Url;
- }
- public void setUrl(String url) {
- Url = url;
- }
- public String getPicUrl() {
- return PicUrl;
- }
- public void setPicUrl(String picUrl) {
- PicUrl = picUrl;
- }
- public String getMediaId() {
- return MediaId;
- }
- public void setMediaId(String mediaId) {
- MediaId = mediaId;
- }
- public String getEventKey() {
- return EventKey;
- }
- public void setEventKey(String eventKey) {
- EventKey = eventKey;
- }
- public String getTicket() {
- return Ticket;
- }
- public void setTicket(String ticket) {
- Ticket = ticket;
- }
- public String getLatitude() {
- return Latitude;
- }
- public void setLatitude(String latitude) {
- Latitude = latitude;
- }
- public String getLongitude() {
- return Longitude;
- }
- public void setLongitude(String longitude) {
- Longitude = longitude;
- }
- public String getPrecision() {
- return Precision;
- }
- public void setPrecision(String precision) {
- Precision = precision;
- }
- public String getEvent() {
- return Event;
- }
- public void setEvent(String event) {
- Event = event;
- }
- public String getMsgId() {
- return MsgId;
- }
- public void setMsgId(String msgId) {
- MsgId = msgId;
- }
- public String getToUserName() {
- return ToUserName;
- }
- public void setToUserName(String toUserName) {
- ToUserName = toUserName;
- }
- public String getFromUserName() {
- return FromUserName;
- }
- public void setFromUserName(String fromUserName) {
- FromUserName = fromUserName;
- }
- public String getCreateTime() {
- return CreateTime;
- }
- public void setCreateTime(String createTime) {
- CreateTime = createTime;
- }
- public String getMsgType() {
- return MsgType;
- }
- public void setMsgType(String msgType) {
- MsgType = msgType;
- }
- }
[java] view plain copy
- package demo.process;
- import java.lang.reflect.Field;
- import java.lang.reflect.Method;
- import java.util.Iterator;
- import org.dom4j.Document;
- import org.dom4j.DocumentHelper;
- import org.dom4j.Element;
- import demo.entity.ReceiveXmlEntity;
- /**
- * 解析接收到的微信xml,返回消息对象
- * @author pamchen-1
- *
- */
- public class ReceiveXmlProcess {
- /**
- * 解析微信xml消息
- * @param strXml
- * @return
- */
- public ReceiveXmlEntity getMsgEntity(String strXml){
- ReceiveXmlEntity msg = null;
- try {
- if (strXml.length() <= 0 || strXml == null)
- return null;
- // 将字符串转化为XML文档对象
- Document document = DocumentHelper.parseText(strXml);
- // 获得文档的根节点
- Element root = document.getRootElement();
- // 遍历根节点下所有子节点
- Iterator> iter = root.elementIterator();
- // 遍历所有结点
- msg = new ReceiveXmlEntity();
- //利用反射机制,调用set方法
- //获取该实体的元类型
- Class> c = Class.forName("demo.entity.ReceiveXmlEntity");
- msg = (ReceiveXmlEntity)c.newInstance();//创建这个实体的对象
- while(iter.hasNext()){
- Element ele = (Element)iter.next();
- //获取set方法中的参数字段(实体类的属性)
- Field field = c.getDeclaredField(ele.getName());
- //获取set方法,field.getType())获取它的参数数据类型
- Method method = c.getDeclaredMethod("set"+ele.getName(), field.getType());
- //调用set方法
- method.invoke(msg, ele.getText());
- }
- } catch (Exception e) {
- // TODO: handle exception
- System.out.println("xml 格式异常: "+ strXml);
- e.printStackTrace();
- }
- return msg;
- }
- }
2.3 调用图灵机器人api接口,获取智能回复内容:
[java] view
plain copy
-
package demo.process;
-
-
import java.io.IOException;
-
import java.io.UnsupportedEncodingException;
-
import java.net.URLEncoder;
-
-
import org.apache.http.HttpResponse;
-
import org.apache.http.client.ClientProtocolException;
-
import org.apache.http.client.methods.HttpGet;
-
import org.apache.http.impl.client.HttpClients;
-
import org.apache.http.util.EntityUtils;
-
import org.json.JSONException;
-
import org.json.JSONObject;
-
-
/**
-
* 调用图灵机器人api接口,获取智能回复内容
-
* @author pamchen-1
-
*
-
*/
-
public class TulingApiProcess {
-
/**
-
* 调用图灵机器人api接口,获取智能回复内容,解析获取自己所需结果
-
* @param content
-
* @return
-
*/
-
public String getTulingResult(String content){
-
/** 此处为图灵api接口,参数key需要自己去注册申请,先以11111111代替 */
-
String apiUrl = "http://www.tuling123.com/openapi/api?key=11111111&info=";
-
String param = "";
-
try {
-
param = apiUrl+URLEncoder.encode(content,"utf-8");
-
} catch (UnsupportedEncodingException e1) {
-
// TODO Auto-generated catch block
-
e1.printStackTrace();
-
} //将参数转为url编码
-
-
/** 发送httpget请求 */
-
HttpGet request = new HttpGet(param);
-
String result = "";
-
try {
-
HttpResponse response = HttpClients.createDefault().execute(request);
-
if(response.getStatusLine().getStatusCode()==200){
-
result = EntityUtils.toString(response.getEntity());
-
}
-
} catch (ClientProtocolException e) {
-
e.printStackTrace();
-
} catch (IOException e) {
-
e.printStackTrace();
-
}
-
/** 请求失败处理 */
-
if(null==result){
-
return "对不起,你说的话真是太高深了……";
-
}
-
-
try {
-
JSONObject json = new JSONObject(result);
-
//以code=100000为例,参考图灵机器人api文档
-
if(100000==json.getInt("code")){
-
result = json.getString("text");
-
}
-
} catch (JSONException e) {
-
// TODO Auto-generated catch block
-
e.printStackTrace();
-
}
-
return result;
-
}
-
}
2.4 将结果封装为微信规定的xml格式,并返回给1.1中创建的servlet接口。
[java] view
plain copy
-
package demo.process;
-
-
import java.util.Date;
-
/**
-
* 封装最终的xml格式结果
-
* @author pamchen-1
-
*
-
*/
-
public class FormatXmlProcess {
-
/**
-
* 封装文字类的返回消息
-
* @param to
-
* @param from
-
* @param content
-
* @return
-
*/
-
public String formatXmlAnswer(String to, String from, String content) {
-
StringBuffer sb = new StringBuffer();
-
Date date = new Date();
-
sb.append("
-
sb.append(to);
-
sb.append("]]>
-
sb.append(from);
-
sb.append("]]>
"); -
sb.append(date.getTime());
-
sb.append("
-
sb.append(content);
-
sb.append("]]>
0 "); -
return sb.toString();
-
}
-
}
- package demo.process;
- import java.util.Date;
- /**
- * 封装最终的xml格式结果
- * @author pamchen-1
- *
- */
- public class FormatXmlProcess {
- /**
- * 封装文字类的返回消息
- * @param to
- * @param from
- * @param content
- * @return
- */
- public String formatXmlAnswer(String to, String from, String content) {
- StringBuffer sb = new StringBuffer();
- Date date = new Date();
-
sb.append("
- sb.append(to);
- sb.append("]]>
- sb.append(from);
- sb.append("]]>
"); - sb.append(date.getTime());
-
sb.append("
- sb.append(content);
- sb.append("]]>
0 "); - return sb.toString();
- }
- }
总结,以上便是微信公众平台开发的全部流程,整体来看并不复杂,要非常感谢图灵机器人提供的api接口,帮我们解决了智能回复这一高难度问题。其他类型的消息处理与示例中类似,有兴趣的开发者可以联系我进行交流学习,希望本文对大家有所帮助。
点击下载:微信公众平台Java开发完整项目实例