微信开发难度不大,但是逻辑关系很强.

这节课主要讲微信接口,至于在J2EE平台怎么把程序构造的更好不在这节课里面讨论.

package net.wxinterface;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Date;
import java.util.Map;import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.dom4j.DocumentException;import wx.in.In_Image;
import wx.in.In_Text;
import wx.in.In_Util;
import wx.in.In_Voice;
import wx.out.Out_Image;
import wx.out.Out_Text;
import wx.out.Out_Voice;import com.imooc.po.TextMessage;
import com.imooc.util.MessageUtil;
public class WX_Interface extends HttpServlet {/*** Constructor of the object.*/public WX_Interface() {super();}/*** Destruction of the servlet. <br>*/public void destroy() {super.destroy(); // Just puts "destroy" string in log// Put your code here}/*** The doGet method of the servlet. <br>** This method is called when a form has its tag value method equals to get.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//΢�ż���ǩ��,signature����˿�������д��tocken����������е�timestamp����nonce����String signature = request.getParameter("signature");//ʱ���String timestamp = request.getParameter("timestamp");//����� String nonce = request.getParameter("nonce");String echostr = request.getParameter("echostr");String tocken = "test";try{if(null != signature){String[] ArrTmp = {tocken,timestamp,nonce};    Arrays.sort(ArrTmp);StringBuffer sb = new StringBuffer();for(int i=0;i<ArrTmp.length;i++){sb.append(ArrTmp[i]);}MessageDigest md = MessageDigest.getInstance("SHA-1");byte[] bytes = md.digest(new String(sb).getBytes());StringBuffer buf = new StringBuffer();for(int i=0;i<bytes.length;i++){if(((int)bytes[i] & 0xff)<0x10){buf.append("0");}buf.append(Long.toString((int) bytes[i] & 0xff,16));}if(signature.equals(buf.toString())){response.getOutputStream().println(echostr);}}}catch(Exception e){e.printStackTrace();}System.out.println("test0");System.out.println("doGet");System.out.println("signature     "+signature);System.out.println("timstamp      "+timestamp);System.out.println("nonce         "+nonce);System.out.println("echostr         "+echostr);System.out.println("doGet");}/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {/*request.setCharacterEncoding("UTF-8");response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
try {Map<String,String> map = MessageUtil.xmlToMap(request);String fromUserName = map.get("FromUserName");String toUserName = map.get("ToUserName");String msgType = map.get("MsgType");String content = map.get("Content");//String message = null;//if("text".equals(msgType)){if(MessageUtil.MESSAGE_TEXT.equals(msgType)){if("1".equals(content)){message = MessageUtil.initText(toUserName,fromUserName,MessageUtil.firstMenu());             }else if("3".equals(content)){//message = MessageUtil.initText(toUserName,fromUserName,content);             //�Ϳ��������ﰴ3����ͼƬ��Ϣ,���ͼƬ��Ϣ�Ĵ����Լ��ظ��Ѿ�д����message = MessageUtil.initImageMessage(toUserName,fromUserName);}else if("4".equals(content)){//��servlet����һ���ж�,������4��ʱ��ظ�һ�����ָ���  message = MessageUtil.initMusicMessage(toUserName,fromUserName);}else if("2".equals(content)){//message = MessageUtil.initText(toUserName,fromUserName,MessageUtil.secondMenu());          //�����ͼ����Ϣ�Ĵ����Լ��ظ��Ѿ�д���� message= MessageUtil.initNewsMessage(toUserName,fromUserName);}else if("?".equals(content)||" ? ".equals(content)){message = MessageUtil.initText(toUserName,fromUserName,MessageUtil.menuText());}TextMessage text = new TextMessage();text.setFromUserName(toUserName);//˭������,��ͷ���˭text.setToUserName(fromUserName);text.setMsgType("text");text.setCreateTime(new Date().getTime());text.setContent("���͵���Ϣ��:"+content);message = MessageUtil.textMessageToXml(text);System.out.println(message);}else if(MessageUtil.MESSAGE_EVENT.equals(msgType)){//�����Ϣ���͵��߼�String eventType = map.get("Event");if(MessageUtil.MESSAGE_SUBSCRIBE.equals(eventType)){//��Ϣ�����¼�������message = MessageUtil.initText(toUserName, fromUserName, content);//��ע΢�Ź��ں�֮��΢�ź�̨����}//�������Servlet�������һ���߼����ж�else if(MessageUtil.MESSAGE_CLICK.equals(eventType)){//�����������Click�˵���һ���¼�����//Click���͵���Ϣ����,���Event��Click���͵Ļ�,��ô����ظ�һ�����˵�message = MessageUtil.initText(toUserName, fromUserName, MessageUtil.menuText());}else if(MessageUtil.MESSAGE_VIEW.equals(eventType)){//�����View���Ͳ˵�,�ͻظ�һ�������õ�UrlString url  = map.get("EventKey");//�����View���Ͳ˵��Ļ�,���EventKey�������Url��ֵif("11".equals(url)){//���Keyֵ��11message = MessageUtil.initText(toUserName, fromUserName, url);}}else if(MessageUtil.MESSAGE_SCANCODE.equals(eventType)){//�ظ�һ�����ɨ���¼�String key  = map.get("EventKey");//�����Click���Ͳ˵��Ļ�,EventKey���������õ�Keyֵmessage = MessageUtil.initText(toUserName, fromUserName, key);}}out .print(message);
} catch (DocumentException e) {// TODO Auto-generated catch blocke.printStackTrace();
}finally{out.close();
}System.out.println("doPost");*///response.setContentType("text/html");//PrintWriter out = response.getWriter();/*     StringBuffer strb = new StringBuffer();ServletInputStream in = request.getInputStream();BufferedReader     breader=       new BufferedReader( new InputStreamReader(in,"UTF-8"));String str = null;while(null!=(str=breader.readLine())){strb.append(str);}//out.println(str);System.out.println(strb);*///out.flush();//out.close();
/*response.setContentType("text/html");
PrintWriter out = response.getWriter();StringBuffer strb = new StringBuffer();
//strb要存储一下request获取过来的东西
ServletInputStream in =  request.getInputStream();BufferedReader breader =  new BufferedReader( new InputStreamReader(in,"UTF-8"));//接收是对的,已经进行转码了.
String str = null;
//+-*\/\是运算符,赋值运算符=也是运算符/*
while(null!=(str = breader.readLine())){strb.append(str);
}
out.println(strb);
System.out.println(strb);
out.flush();
out.close();*/response.setContentType("text/html;charset=utf-8");String requestStr = In_Util.getStringFromRequest(request);System.out.println(requestStr);System.out.println("北风网");
/*      In_Text in_Text = new In_Text(requestStr);System.out.println(in_Text);in_Text.setContent(in_Text.getContent()+ "  吃屎啦");*//*    In_Image in_Image = new In_Image(requestStr);System.out.println(in_Image);*///Out_Text out_Text = new Out_Text(in_Text);//Out_Text out_Text = new Out_Text(in_Text,in_Text.getContent()+ "  吃屎啦");
/*      Out_Text out_Text = new Out_Text(in_Text);out_Text.setContent(in_Text.getContent());*///System.out.println(out_Text.getStr("这是北风网。。。。。。。"));//response.getOutputStream().print(out_Text.getStr(in_Text.getContent()+ "  吃屎啦"));//response.getWriter().print(out_Text.getStr(in_Text.getContent()+ "  吃屎啦"));//response.getWriter().print(out_Text.getStr());//new BufferedWriter(new OutputStreamWriter(response.getOutputStream(),"UTF-8")).write(out_Text.getStr(in_Text.getContent()+ "  chishila"));//response.getOutputStream().print(out_Text.getStr("这是北风网。。。。。。。"));//System.out.println(out_Text.getStr(in_Text.getContent()+ "  吃屎啦"));//System.out.println(out_Text.getStr());/*In_Image in_Image = new In_Image(requestStr);System.out.println(in_Image.getMediaId());Out_Image out_Image = new Out_Image(in_Image);out_Image.setMediaId(in_Image.getMediaId());response.getWriter().print(out_Image.getStr());*/
/*      String shanghai = "szNaZ9h5SbG4kMDlCexVMvNLuezqTB20QE9XOgpbK5plhmCOnaO6JG6-ISXsIdvn";String xxx= "T9Bi3d-qxYbZnE6f1CsYJ2EfNrWDdr9x3Kpas_WUo04tc9b4zwTq9KZs1vQ6taQB";In_Text in_Text = new In_Text(requestStr);Out_Image out_Image = new Out_Image(in_Text);if("1".equals(in_Text.getContent())){out_Image.setMediaId(shanghai);}else{out_Image.setMediaId(xxx);}response.getWriter().print(out_Image.getStr());*/In_Voice in_Voice = new In_Voice(requestStr);Out_Voice out_Voice = new Out_Voice(in_Voice);out_Voice.setMediaId(in_Voice.getMediaId());response.getWriter().print(out_Voice.getStr());}/*** Initialization of the servlet. <br>** @throws ServletException if an error occurs*/public void init() throws ServletException {// Put your code here}}

package wx.out;import java.util.Date;import wx.in.In;public class Out_Voice {private String ToUserName =null;//   是   接收方帐号（收到的OpenID）private String FromUserName   = null;//是 开发者微信号private String CreateTime = null;//  是   消息创建时间戳 （整型）private String MsgType = null;// 是   语音，voiceprivate String MediaId = null;//    是   通过素材管理中的接口上传多媒体文件，得到的idStringBuffer strb = new StringBuffer();StringBuffer strb_ = new StringBuffer();public Out_Voice(In in) {super();Date date = new Date();strb.append("             <ToUserName><![CDATA["+in.getFromUserName()+"]]></ToUserName>                   ");strb.append("         <FromUserName><![CDATA["+in.getToUserName()+"]]></FromUserName>                       ");strb.append("         <CreateTime>"+date.getTime()+"</CreateTime>                       ");strb.append("          <MsgType><![CDATA[voice]]></MsgType>   ");}//public String getStr(String str){public String getStr(){strb_.append("           <xml>                     ");    strb_.append(strb);strb_.append("           <Voice>                   ");strb_.append("         <MediaId><![CDATA["+this.getMediaId()+"]]></MediaId>                  ");strb_.append("         </Voice>                 ");strb_.append("         </xml>                 ");return strb_.toString();}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;}public String getMediaId() {return MediaId;}public void setMediaId(String mediaId) {MediaId = mediaId;}}

package wx.out;import java.util.Date;import wx.in.In;public class Out_Image {private String ToUserName = null;//  是   接收方帐号（收到的OpenID）private String FromUserName = null;//    是   开发者微信号private String CreateTime =null;//   是   消息创建时间 （整型）private String MsgType  =null;//  是   imageprivate String MediaId  =null;//  是   通过素材管理中的接口上传多媒体文件，得到的id。StringBuffer strb = new StringBuffer();StringBuffer strb_ = new StringBuffer();public Out_Image(In in) {super();Date date = new Date();strb.append("             <ToUserName><![CDATA["+in.getFromUserName()+"]]></ToUserName>                   ");strb.append("         <FromUserName><![CDATA["+in.getToUserName()+"]]></FromUserName>                       ");strb.append("         <CreateTime>"+date.getTime()+"</CreateTime>                       ");strb.append("          <MsgType><![CDATA[Image]]></MsgType>   ");}//public String getStr(String str){public String getStr(){strb_.append("           <xml>                     ");    strb_.append(strb);strb_.append("           <Image>                   ");strb_.append("         <MediaId><![CDATA["+this.getMediaId()+"]]></MediaId>                  ");strb_.append("         </Image>                 ");strb_.append("         </xml>                 ");return strb_.toString();}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;}public String getMediaId() {return MediaId;}public void setMediaId(String mediaId) {MediaId = mediaId;}}

package wx.out;import java.util.Date;import wx.in.In;public class Out_Text {private String ToUserName = null;//   是   接收方帐号（收到的OpenID）private String FromUserName = null;//    是   开发者微信号private String CreateTime = null;//  是   消息创建时间 （整型）private String MsgType =null;//    是  textprivate String Content = null;//   是   回复的消息内容（换行：在content中能够换行，微信客户端就支持换行显示）StringBuffer strb = new StringBuffer();StringBuffer strb_ = new StringBuffer();public Out_Text(In in) {//public Out_Text(In in,String str) {super();// TODO Auto-generated constructor stubDate date = new Date();strb.append("             <ToUserName><![CDATA["+in.getFromUserName()+"]]></ToUserName>                   ");strb.append("         <FromUserName><![CDATA["+in.getToUserName()+"]]></FromUserName>                       ");strb.append("         <CreateTime>"+date.getTime()+"</CreateTime>                       ");strb.append("          <MsgType><![CDATA[text]]></MsgType>   ");//this.setContent(str);}//public String getStr(String str){public String getStr(){strb_.append("           <xml>                     ");    strb_.append(strb);//strb_.append("            <Content><![CDATA["+str+"]]></Content>                    ");strb_.append("            <Content><![CDATA["+this.getContent()+"]]></Content>                    ");strb_.append("            </xml>                    ");return strb_.toString();}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;}public String getContent() {return Content;}public void setContent(String content) {Content = content;}}