package?com.test;

import?java.io.IOException;

import?java.io.PrintWriter;

import?java.util.Map;

import?javax.servlet.ServletException;

import?javax.servlet.http.HttpServlet;

import?javax.servlet.http.HttpServletRequest;

import?javax.servlet.http.HttpServletResponse;

import?com.test.util.JsapiTicketUtil;

import?com.test.util.Sign;

public?class?WxJsAPIServlet?extends?HttpServlet?{

/**

?????*?Constructor?of?the?object.

?????*/

????public?WxJsAPIServlet()?{

????????super();

????}

/**

?????*?Destruction?of?the?servlet.?

?????*/

????public?void?destroy()?{

????????super.destroy();?//?Just?puts?"destroy"?string?in?log

????????//?Put?your?code?here

????}

????/**

?????*?The?doGet?method?of?the?servlet.?

?????*

?????*?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?{

????????System.out.println("wxJSAPI====================");

????????String?jsapi_ticket?=JsapiTicketUtil.getJSApiTicket();;

????????Map?map?=?Sign.sign(jsapi_ticket,?"http://www.vxzsk.com/weChat/wxJsAPIServlet");

????????String?timestamp?=?map.get("timestamp");

????????String?nonceStr?=?map.get("nonceStr");

????????String?signature?=?map.get("signature");

????????String?appId?=?"應(yīng)用Id";

????????request.setAttribute("appId",?appId);

????????request.setAttribute("timestamp",?timestamp);

????????request.setAttribute("signature",signature);

????????request.setAttribute("nonceStr",?nonceStr);

????????request.getRequestDispatcher("jsapi/jsapi.jsp").forward(request,?response);

????}

????/**

?????*?The?doPost?method?of?the?servlet.?

?????*

?????*?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?{

???????this.doGet(request,?response);

???????}

/**

?????*?Initialization?of?the?servlet.?

?????*

?????*?@throws?ServletException?if?an?error?occurs

?????*/

????public?void?init()?throws?ServletException?{

????????//?Put?your?code?here

????}

}

????This?is?the?description?of?my?J2EE?component

????<display-name>This?is?the?display?name?of?my?J2EE?component

????WxJsAPIServlet

????com.test.WxJsAPIServlet

??

????WxJsAPIServlet

????/wxJsAPIServlet

??

package?com.test.util;

/***

?*?V型知識庫?www.vxzsk.com

?*/

import?java.util.UUID;

import?java.util.Map;

import?java.util.HashMap;

import?java.util.Formatter;

import?java.security.MessageDigest;

import?java.security.NoSuchAlgorithmException;

import?java.io.UnsupportedEncodingException;??

??public?class?Sign?{

????public?static?Map?sign(String?jsapi_ticket,?String?url)?{

????????Map?ret?=?new?HashMap();

????????String?nonce_str?=?create_nonce_str();

????????String?timestamp?=?create_timestamp();

????????String?string1;

????????String?signature?=?"";

????????//注意這里參數(shù)名必須全部小寫，且必須有序

????????string1?=?"jsapi_ticket="?+?jsapi_ticket?+

??????????????????"&noncestr="?+?nonce_str?+

??????????????????"×tamp="?+?timestamp?+

??????????????????"&url="?+?url;

????????System.out.println(string1);

????????try

????????{

????????????MessageDigest?crypt?=?MessageDigest.getInstance("SHA-1");

????????????crypt.reset();

????????????crypt.update(string1.getBytes("UTF-8"));

????????????signature?=?byteToHex(crypt.digest());

????????}

????????catch?(NoSuchAlgorithmException?e)

????????{

????????????e.printStackTrace();

????????}

????????catch?(UnsupportedEncodingException?e)

????????{

????????????e.printStackTrace();

????????}

????????ret.put("url",?url);

????????ret.put("jsapi_ticket",?jsapi_ticket);

????????ret.put("nonceStr",?nonce_str);

????????ret.put("timestamp",?timestamp);

????????ret.put("signature",?signature);

????????return?ret;

????}

????private?static?String?byteToHex(final?byte[]?hash)?{

????????Formatter?formatter?=?new?Formatter();

????????for?(byte?b?:?hash)

????????{

????????????formatter.format("%02x",?b);

????????}

????????String?result?=?formatter.toString();

????????formatter.close();

????????return?result;

????}

????private?static?String?create_nonce_str()?{

????????return?UUID.randomUUID().toString();

????}

????private?static?String?create_timestamp()?{

????????return?Long.toString(System.currentTimeMillis()?/?1000);

????}

????public?static?void?main(String[]?args)?{

????????String?jsapi_ticket?=JsapiTicketUtil.getJSApiTicket();

????????//?注意?URL?一定要動態(tài)獲取，不能?hardcode

????????String?url?=?"http://www.vxzsk.com/xx/x.do";//url是你請求的一個action或者controller地址，并且方法直接跳轉(zhuǎn)到使用jsapi的jsp界面

????????Map?ret?=?sign(jsapi_ticket,?url);

????????for?(Map.Entry?entry?:?ret.entrySet())?{

????????????System.out.println(entry.getKey()?+?",?"?+?entry.getValue());

????????}

????};

}

package?com.test.util;

import?java.io.BufferedReader;

import?java.io.IOException;

import?java.io.InputStreamReader;

import?java.net.MalformedURLException;

import?java.net.URL;

import?java.net.URLConnection;

import?net.sf.json.JSONObject;

import?com.test.weixin.TestAcessToken;

public?class?JsapiTicketUtil?{

????/***

?????*?模擬get請求

?????*?@param?url

?????*?@param?charset

?????*?@param?timeout

?????*?@return

?????*/

?????public?static?String?sendGet(String?url,?String?charset,?int?timeout)

??????{

????????String?result?=?"";

????????try

????????{

??????????URL?u?=?new?URL(url);

??????????try

??????????{

????????????URLConnection?conn?=?u.openConnection();

????????????conn.connect();

????????????conn.setConnectTimeout(timeout);

????????????BufferedReader?in?=?new?BufferedReader(new?InputStreamReader(conn.getInputStream(),?charset));

????????????String?line="";

????????????while?((line?=?in.readLine())?!=?null)

????????????{

??????????????result?=?result?+?line;

????????????}

????????????in.close();

??????????}?catch?(IOException?e)?{

????????????return?result;

??????????}

????????}

????????catch?(MalformedURLException?e)

????????{

??????????return?result;

????????}

????????return?result;

??????}

?????public?static?String?getAccessToken(){

????????????String?appid="你公眾號基本設(shè)置里的應(yīng)用id";//應(yīng)用ID

????????????String?appSecret="你公眾號基本設(shè)置里的應(yīng)用密鑰";//(應(yīng)用密鑰)

????????????String?url?="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+appid+"&secret="+appSecret+"";

????????????String?backData=TestAcessToken.sendGet(url,?"utf-8",?10000);

????????????String?accessToken?=?(String)?JSONObject.fromObject(backData).get("access_token");??

????????????return?accessToken;

?????}

????public?static?String?getJSApiTicket(){?

????????//獲取token

????????String?acess_token=?JsapiTicketUtil.getAccessToken();

????????String?urlStr?=?"https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token="+acess_token+"&type=jsapi";??

????????String?backData=TestAcessToken.sendGet(urlStr,?"utf-8",?10000);??

????????String?ticket?=?(String)?JSONObject.fromObject(backData).get("ticket");??

????????return??ticket;??

????}??

????public?static?void?main(String[]?args)?{

????????String?jsapiTicket?=?JsapiTicketUtil.getJSApiTicket();

????????System.out.println("調(diào)用微信jsapi的憑證票為："+jsapiTicket);

????}

}

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

W3C//DTD HTML 4.01 Transitional//EN">

??<head>

????

????

????viewport" content="width=320.1,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no">

????

??

??

??

??

?????

timestamp：${?timestamp}

?????

nonceStr：${?nonceStr}

?????

signature：${?signature}

?????

appId:${?appId}

????onclick="uploadImg();"/>??

????獲取當(dāng)前位置" onclick="getLocation();"/>??

??

??

??

package?com.test;

import?java.io.IOException;

import?java.io.PrintWriter;

import?java.util.Date;

import?java.util.Map;

import?javax.servlet.ServletException;

import?javax.servlet.http.HttpServlet;

import?javax.servlet.http.HttpServletRequest;

import?javax.servlet.http.HttpServletResponse;

import?com.test.message.resp.TextMessage;

import?com.test.util.MessageUtil;

/**

?*?核心請求處理類

?*?doGet方法里?有個weixinTest，這個是公眾管理平臺里面自己設(shè)置的token?大家根據(jù)自己的token替換

?*/

public?class?WeChatServlet?extends?HttpServlet?{

????private?static?final?long?serialVersionUID?=?1508798736675904038L;

????/**

?????*?確認請求來自微信服務(wù)器

?????*/

????public?void?doGet(HttpServletRequest?request,?HttpServletResponse?response)?throws?ServletException,?IOException?{

????????System.out.println("V型知識庫原創(chuàng)www.vxzsk.com");

????????//?微信加密簽名

????????String?signature?=?request.getParameter("signature");

????????System.out.println("微信加密簽名signature：-----------------------"+signature);

????????//?時間戳

????????String?timestamp?=?request.getParameter("timestamp");

????????System.out.println("時間戳timestamp：-----------------------"+timestamp);

????????//?隨機數(shù)

????????String?nonce?=?request.getParameter("nonce");

????????System.out.println("隨機數(shù)nonce：-----------------------"+nonce);

????????//?隨機字符串

????????String?echostr?=?request.getParameter("echostr");

????????System.out.println("隨機字符串echostr：-----------------------"+echostr);

????????//System.out.println("token-----------------------:"+token);

????????PrintWriter?out?=?response.getWriter();

????????//?通過檢驗signature對請求進行校驗，若校驗成功則原樣返回echostr，表示接入成功，否則接入失敗

????????if?(SignUtil.checkSignature("weixinTest",?signature,?timestamp,?nonce))?{

????????????out.print(echostr);

????????????//System.out.println("這是："+echostr);

????????}

????????out.close();

????????out?=?null;

????}

????/**

?????*?處理微信服務(wù)器發(fā)來的消息

?????*?實例源碼在文章頂部有下載連接

?????*/

????public?void?doPost(HttpServletRequest?request,?HttpServletResponse?response)?throws?ServletException,?IOException?{?

????????System.out.println("V型知識庫原創(chuàng)www.vxzsk.com");

????????System.out.println("微信服務(wù)器發(fā)來消息------------");

????????//?將請求、響應(yīng)的編碼均設(shè)置為UTF-8（防止中文亂碼）

????????request.setCharacterEncoding("UTF-8");

????????response.setCharacterEncoding("UTF-8");

????????String?respMessage?=?null;

????????try{

????????//xml請求解析

????????Map?requestMap?=?MessageUtil.parseXml(request);//接收微信發(fā)過來的xml格式

????????//發(fā)送方帳號(open_id)

????????String?fromUserName?=?requestMap.get("FromUserName");

????????//公眾帳號

????????String?toUserName?=?requestMap.get("ToUserName");

????????//消息類型

????????String?msgType?=?requestMap.get("MsgType");

????????//消息創(chuàng)建時間

????????String?createTime?=?requestMap.get("CreateTime");

????????//微信服務(wù)器post過來的內(nèi)容

????????String?weixinContent?=?requestMap.get("Content");

????????System.out.println("公眾號用戶發(fā)送過來的文本消息內(nèi)容："+weixinContent);

????????//接下來我們用上一章節(jié)自己封裝好的工具類

????????if?(msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_TEXT))?{//文本類型?用戶回復(fù)?“hh”?微信自動回復(fù)此條消息

????????//回復(fù)換行的文本消息

????????TextMessage?textMessage?=?new?TextMessage();

????????textMessage.setToUserName(fromUserName);

????????textMessage.setFromUserName(toUserName);

????????textMessage.setCreateTime(new?Date().getTime());

????????textMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_TEXT);

????????textMessage.setFuncFlag(0);

????????//回復(fù)用戶的換行字符串?\n表示換行

????????StringBuffer?buffer?=?new?StringBuffer();

????????if(weixinContent.equals("hh")){//如果用戶發(fā)送”hh“

????????buffer.append("歡迎訪問").append("\n");

????????buffer.append("微信jsapi測試界面").append("\n\n");

????????buffer.append("回復(fù)'hh'二字即可能顯示此條消息");

????????}else{

????????buffer.append("您好我是V型知識庫");

????????}

????????textMessage.setContent(buffer.toString());

????????respMessage?=?MessageUtil.textMessageToXml(textMessage);//轉(zhuǎn)換成xml格式

????????}

????????//?響應(yīng)回復(fù)消息

????????PrintWriter?out?=?response.getWriter();

????????out.print(respMessage);

????????out.close();

?????????}catch(Exception?e){

??????????e.printStackTrace();

?????????}

????}

}

package?com.test.util;

import?java.io.InputStream;

import?java.io.Writer;

import?java.util.HashMap;

import?java.util.List;

import?java.util.Map;

import?javax.servlet.http.HttpServletRequest;

import?org.dom4j.Document;

import?org.dom4j.Element;

import?org.dom4j.io.SAXReader;

import?com.test.message.resp.Article;

import?com.test.message.resp.MusicMessage;

import?com.test.message.resp.NewsMessage;

import?com.test.message.resp.TextMessage;

import?com.thoughtworks.xstream.XStream;

import?com.thoughtworks.xstream.core.util.QuickWriter;

import?com.thoughtworks.xstream.io.HierarchicalStreamWriter;

import?com.thoughtworks.xstream.io.xml.PrettyPrintWriter;

import?com.thoughtworks.xstream.io.xml.XppDriver;

/**

?*?消息工具類

?*/

public?class?MessageUtil?{

????/**

?????*?返回消息類型：文本

?????*/

????public?static?final?String?RESP_MESSAGE_TYPE_TEXT?=?"text";

????/**

?????*?返回消息類型：音樂

?????*/

????public?static?final?String?RESP_MESSAGE_TYPE_MUSIC?=?"music";

????/**

?????*?返回消息類型：圖文

?????*/

????public?static?final?String?RESP_MESSAGE_TYPE_NEWS?=?"news";

????/**

?????*?請求消息類型：文本

?????*/

????public?static?final?String?REQ_MESSAGE_TYPE_TEXT?=?"text";

????/**

?????*?請求消息類型：圖片

?????*/

????public?static?final?String?REQ_MESSAGE_TYPE_IMAGE?=?"image";

????/**

?????*?請求消息類型：鏈接

?????*/

????public?static?final?String?REQ_MESSAGE_TYPE_LINK?=?"link";

????/**

?????*?請求消息類型：地理位置

?????*/

????public?static?final?String?REQ_MESSAGE_TYPE_LOCATION?=?"location";

????/**

?????*?請求消息類型：音頻

?????*/

????public?static?final?String?REQ_MESSAGE_TYPE_VOICE?=?"voice";

????/**

?????*?請求消息類型：推送

?????*/

????public?static?final?String?REQ_MESSAGE_TYPE_EVENT?=?"event";

????/**

?????*?事件類型：subscribe(訂閱)

?????*/

????public?static?final?String?EVENT_TYPE_SUBSCRIBE?=?"subscribe";

????/**

?????*?事件類型：unsubscribe(取消訂閱)

?????*/

????public?static?final?String?EVENT_TYPE_UNSUBSCRIBE?=?"unsubscribe";

????/**

?????*?事件類型：CLICK(自定義菜單點擊事件)

?????*/

????public?static?final?String?EVENT_TYPE_CLICK?=?"CLICK";

????/**

?????*?解析微信發(fā)來的請求（XML）

?????*?

?????*?@param?request

?????*?@return

?????*?@throws?Exception

?????*/

????@SuppressWarnings("unchecked")

????public?static?Map?parseXml(HttpServletRequest?request)?throws?Exception?{

????????//?將解析結(jié)果存儲在HashMap中

????????Map?map?=?new?HashMap();

????????//?從request中取得輸入流

????????InputStream?inputStream?=?request.getInputStream();

????????//?讀取輸入流

????????SAXReader?reader?=?new?SAXReader();

????????Document?document?=?reader.read(inputStream);

????????//?得到xml根元素

????????Element?root?=?document.getRootElement();

????????//?得到根元素的所有子節(jié)點

????????List?elementList?=?root.elements();

????????//?遍歷所有子節(jié)點

????????for?(Element?e?:?elementList)?{

????????????map.put(e.getName(),?e.getText());

????????}

????????//?釋放資源

????????inputStream.close();

????????inputStream?=?null;

????????return?map;

????}

????/**

?????*?文本消息對象轉(zhuǎn)換成xml??

?????*?@param?textMessage?文本消息對象

?????*?@return?xml

?????*/

????public?static?String?textMessageToXml(TextMessage?textMessage)?{

????????xstream.alias("xml",?textMessage.getClass());

????????return?xstream.toXML(textMessage);

????}

????/**

?????*?音樂消息對象轉(zhuǎn)換成xml??

?????*?@param?musicMessage?音樂消息對象

?????*?@return?xml

?????*/

????public?static?String?musicMessageToXml(MusicMessage?musicMessage)?{

????????xstream.alias("xml",?musicMessage.getClass());

????????return?xstream.toXML(musicMessage);

????}

????/**

?????*?圖文消息對象轉(zhuǎn)換成xml??

?????*?@param?newsMessage?圖文消息對象

?????*?@return?xml

?????*/

????public?static?String?newsMessageToXml(NewsMessage?newsMessage)?{

????????xstream.alias("xml",?newsMessage.getClass());

????????xstream.alias("item",?new?Article().getClass());

????????return?xstream.toXML(newsMessage);

????}

????/**

?????*?擴展xstream，使其支持CDATA塊??

?????*?@date

?????*/

????private?static?XStream?xstream?=?new?XStream(new?XppDriver()?{

????????public?HierarchicalStreamWriter?createWriter(Writer?out)?{

????????????return?new?PrettyPrintWriter(out)?{

????????????????//?對所有xml節(jié)點的轉(zhuǎn)換都增加CDATA標(biāo)記

????????????????boolean?cdata?=?true;

????????????????@SuppressWarnings("unchecked")

????????????????public?void?startNode(String?name,?Class?clazz)?{

????????????????????super.startNode(name,?clazz);

????????????????}

????????????????protected?void?writeText(QuickWriter?writer,?String?text)?{

????????????????????if?(cdata)?{

????????????????????????writer.write("

writer.write(text);

writer.write("]]>");

????????????????????}?else?{

????????????????????????writer.write(text);

????????????????????}

????????????????}

????????????};

????????}

????});

}

package?com.test.message.resp;

public?class?TextMessage?extends?BaseMessage?{

????//?回復(fù)的消息內(nèi)容

????private?String?Content;

????public?String?getContent()?{

????????return?Content;

????}

????public?void?setContent(String?content)?{

????????Content?=?content;

????}

}

package?com.test.message.resp;

/**

?*?消息基類（公眾帳號?->?普通用戶）

?*/

public?class?BaseMessage?{

????//?接收方帳號（收到的OpenID）

????private?String?ToUserName;

????//?開發(fā)者微信號

????private?String?FromUserName;

????//?消息創(chuàng)建時間?（整型）

????private?long?CreateTime;

????//?消息類型（text/music/news）

????private?String?MsgType;

????//?位0x0001被標(biāo)志時，星標(biāo)剛收到的消息

????private?int?FuncFlag;

????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?long?getCreateTime()?{

????????return?CreateTime;

????}

????public?void?setCreateTime(long?createTime)?{

????????CreateTime?=?createTime;

????}

????public?String?getMsgType()?{

????????return?MsgType;

????}

????public?void?setMsgType(String?msgType)?{

????????MsgType?=?msgType;

????}

????public?int?getFuncFlag()?{

????????return?FuncFlag;

????}

????public?void?setFuncFlag(int?funcFlag)?{

????????FuncFlag?=?funcFlag;

????}

}