纯JSP实现简单微信开发后台

%@ page import="java.net.*" %
%@ page import="java.math.*" %
%@ page import="java.io.*" %
%@ page import="java.text.*"%
%@page import="java.util.Date"%
%@page import="org.dom4j.Element"%
%@page import="org.dom4j.DocumentHelper"%
%@page import="org.dom4j.Document"%
%@page import="java.io.IOException"%
%@page import="java.io.InputStreamReader"%
%@page import="java.io.BufferedReader"%
%@page import="java.io.Reader"%
%@page import="java.security.MessageDigest"%
%@page import="java.util.Arrays"%
%@page import="java.util.ArrayList"%
%@page import="java.util.Collections"%
%@page import="java.util.List"%
%@page import="java.util.regex.Matcher"%
%@page import="java.util.regex.Pattern"%

%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%
<%
//WeiXinHandler为内部类不能使用非final类型的对象

final String TOKEN=“daniuco”;//此处填写自己的TOKEN参数，见开发模式
final HttpServletRequest final_request=request;
final HttpServletResponse final_response=response;
%>

<%
class WeiXinHandler{
public void valid(){
String echostr=final_request.getParameter(“echostr”);
if(null==echostr||echostr.isEmpty())
{

 responseMsg();
}else{

  if(this.checkSignature())
  {
     this.print(echostr);
  }else{
     this.print("error");
  }
  }
}

//自动回复内容
public void responseMsg()

{

String postStr=null;
try{
    postStr=this.readStreamParameter(final_request.getInputStream());
    //System.out.print(postStr);

}catch(Exception e)
{ e.printStackTrace(); }
    //System.out.println(postStr);
if (null!=postStr&&!postStr.isEmpty())
{
Document document=null;
try{

document = DocumentHelper.parseText(postStr);
}catch(Exception e){ e.printStackTrace(); }

if(null==document)
{ this.print(““); return; }

Element root=document.getRootElement();
String fromUsername = root.elementText(“FromUserName”);
String toUsername = root.elementText(“ToUserName”);
String keyword = root.elementTextTrim(“Content”);
long longTime = new Date().getTime();
String time = longTime/1000 +““;
String msgType = root.elementText(“MsgType”);
String event = root.elementText(“Event”);

String textTpl = “ “+ “ %1$s “+ “ %2$s “+ “ %3$s “+ “ %4$s “+ “ %5$s “+ “ 0 “+ “ “;

String htmlTpl = “ “+ “ %1$s “+ “ %2$s “+ “ %3$s “+ “ %4$s ” +

     "[%5$s]" + "</Articles></xml>";
//公用帮助文档
String helpHtml = “\n任何时候，回复"help"或者"帮助"或者"?"三者之一获取最新使用手册。\n\n分类信息（[c:新闻]，[c:公告]，[c:研报]等）\n历史信息（[2013-10-05]：某天信息，[d:9]：过去9天之内的信息，[d:-9]：过去9天之前的信息，默认查询范围10天之内）“;

if(null!=msgType && !msgType.equals(““))
{

 /**
  *事件类型
  */
if(msgType.equals(“event”) && event.equals(“subscribe”))
{

 //订阅
  String subscribeHtml = "";
  msgType = "news";

  //String helpHtml  =  "\n任何时候，回复\"help\"或者\"帮助\"二者之一获取最新使用手册。\n分类信息（c:新闻，c:公告，c:研报）\n历史信息（[2013-10-05]：某天信息，[d:9]：过去9天之内的信息，[d:-9]：过去9天之前的信息，默认查询范围10天之内）";
  String helpPicUrl = "http://www.daniu.co/images/weixin/finance_travel_640_320.jpg";
  String helpContentUrl = "";

  String helpResults = "<item><Title><![CDATA[欢迎开启财富新旅程]]></Title><Description><![CDATA[" + helpHtml + "]]></Description><PicUrl><![CDATA[" + helpPicUrl +"]]></PicUrl><Url><![CDATA[" + helpContentUrl + "]]></Url></item>";
  helpResults = "<ArticleCount>1</ArticleCount><Articles>"+ helpResults;

  subscribeHtml = helpResults;

  //System.out.println(subscribeHtml);

  String resultStr = htmlTpl.format(htmlTpl, fromUsername, toUsername, time, msgType, subscribeHtml);

  this.print(resultStr);
}

if(msgType.equals(“event”) && event.equals(“unsubscribe”))
{

 //退订
  String subscribeHtml = "";
  msgType = "news";

  helpHtml  =  "\n感谢关注daniuco\n\n你订或不订，我都在这里，勤勤恳恳... ...";
  String helpPicUrl = "http://www.daniu.co/images/weixin/finance_640_320.png";
  String helpContentUrl = "";

  String helpResults = "<item><Title><![CDATA[感谢关注金融互联网]]></Title><Description><![CDATA[" + helpHtml + "]]></Description><PicUrl><![CDATA[" + helpPicUrl +"]]></PicUrl><Url><![CDATA[" + helpContentUrl + "]]></Url></item>";
  helpResults = "<ArticleCount>1</ArticleCount><Articles>"+ helpResults;

  subscribeHtml = helpResults;

  //System.out.println(subscribeHtml);

  String resultStr = htmlTpl.format(htmlTpl, fromUsername, toUsername, time, msgType, subscribeHtml);

  this.print(resultStr);
}

}

if(null!=keyword&&!keyword.equals(““))
{

/* 

*回复文本信息

String msgType = “text”;

String contentStr = “系统在开发过程中，敬请期待!“;
if(keyword.equals(“help”) || keyword.equals(“帮助”))
{//使用手册

  contentStr = contentStr + "\n使用手册正在设计中，您可以在以后使用过程中，回复\"help\"或者\"帮助\"二者之一获取最新使用手册。";
}
//Autonomy Search
contentStr = contentStr + “\n===自动推送测试内容===\n”+ AutonomySearch(keyword);

String resultStr = textTpl.format(textTpl, fromUsername, toUsername, time, msgType, contentStr);

/*
回复文本信息结束
*/

/*
回复图文信息，最多6条(微信支持10条)
*/

msgType = “news”;
String contentHtml = ““;//用户请求关键字

if(keyword.equals(“help”) || keyword.equals(“帮助”) || keyword.equals(“?“) || keyword.equals(“？“))
{//使用手册

  //String helpHtml  =  "\n任何时候，回复\"help\"或者\"帮助\"二者之一获取最新使用手册。\n分类信息（c:新闻，c:公告，c:研报）\n历史信息（[2013-10-05]：某天信息，[d:9]：过去9天之内的信息，[d:-9]：过去9天之前的信息，默认查询范围10天之内）";

  String helpPicUrl = "http://www.daniu.co/images/weixin/help_640_320.png";
  String helpContentUrl = "";

  String helpResults = "<item><Title><![CDATA[由大牛网提供的财富新体验]]></Title><Description><![CDATA[" + helpHtml + "]]></Description><PicUrl><![CDATA[" + helpPicUrl +"]]></PicUrl><Url><![CDATA["+ helpContentUrl +"]]></Url></item>";
  helpResults = "<ArticleCount>1</ArticleCount><Articles>"+ helpResults;

  String resultStr = htmlTpl.format(htmlTpl, fromUsername, toUsername, time, msgType, helpResults);
  this.print(resultStr);
}else
{//智能回复

  String reqTpl = "<xml><ToUserName><![CDATA[%1$s]]></ToUserName><FromUserName><![CDATA[%2$s]]></FromUserName><CreateTime>%3$s</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[" + keyword + "]]></Content><MsgId>5937584354468300645</MsgId><OpenId>daniuco</OpenId></xml>";
  String reqStr = reqTpl.format(reqTpl,toUsername, fromUsername, time);//将原始请求信息发送到智能引擎，注意toUsername,fromUsername位置

  contentHtml = getRemoteXML(reqStr);
 // System.out.print(contentHtml);
  //返回信息到微信服务器
  this.print(contentHtml);
}

//返回信息到微信服务器
//this.print(resultStr);
}else{ this.print(“Input something…“); } }else { this.print(““); } }

//微信接口验证
public boolean checkSignature(){ String signature = final_request.getParameter(“signature”);
String timestamp = final_request.getParameter(“timestamp”);
String nonce = final_request.getParameter(“nonce”);
String token=TOKEN;
String[] tmpArr={token,timestamp,nonce};
Arrays.sort(tmpArr);
String tmpStr=this.ArrayToString(tmpArr);
tmpStr=this.SHA1Encode(tmpStr); if(tmpStr.equalsIgnoreCase(signature)){ return true; }else{ return false; } }

//向请求端发送返回数据
public void print(String content){ try{ final_response.getWriter().print(content); final_response.getWriter().flush(); final_response.getWriter().close(); }catch(Exception e){ } }
//数组转字符串
public String ArrayToString(String [] arr){ StringBuffer bf = new StringBuffer(); for(int i = 0; i < arr.length; i++){ bf.append(arr[i]); } return bf.toString(); }

//sha1加密
public String SHA1Encode(String sourceString) {
String resultString = null;
try { resultString = new String(sourceString);
MessageDigest md = MessageDigest.getInstance(“SHA-1”); resultString = byte2hexString(md.digest(resultString.getBytes())); } catch (Exception ex) { } return resultString; } public final String byte2hexString(byte[] bytes) { StringBuffer buf = new StringBuffer(bytes.length * 2); 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)); } return buf.toString().toUpperCase(); }
//从输入流读取post参数

public String readStreamParameter(ServletInputStream in){ StringBuilder buffer = new StringBuilder();
BufferedReader reader=null; try{ reader = new BufferedReader(new InputStreamReader(in)); String line=null; while((line = reader.readLine())!=null){ buffer.append(line); } }catch(Exception e){ e.printStackTrace(); }finally{ if(null!=reader){ try { reader.close(); } catch (IOException e) { e.printStackTrace(); } } } return buffer.toString(); }

}%>

<%!
public String getRemoteXML(String reqStr)
{

 HttpURLConnection url_con = null;
 String responseContent = null;

 String daniucoUrl = "http://www.daniu.co/openapi";
 try
    {

        URL url = new URL(daniucoUrl);
        url_con = (HttpURLConnection) url.openConnection();
        url_con.setRequestMethod("POST");
        url_con.setDoOutput(true);
        byte[] b = reqStr.getBytes();
        url_con.getOutputStream().write(b, 0, b.length);
        url_con.getOutputStream().flush();
        url_con.getOutputStream().close();

        InputStream in = url_con.getInputStream();
        BufferedReader rd = new BufferedReader(new InputStreamReader(in,
                "utf-8"));
        String tempLine = rd.readLine();
        StringBuffer tempStr = new StringBuffer();
        String crlf=System.getProperty("line.separator");
        while (tempLine != null)
        {
            tempStr.append(tempLine);
            tempStr.append(crlf);
            tempLine = rd.readLine();
        }
        responseContent = tempStr.toString();
        rd.close();
        in.close();
    }
    catch (IOException e)
    {
        //System.out.print("网络故障", e);
    }
    finally
    {
        if (url_con != null)
        {
            url_con.disconnect();
        }
    }
    //System.out.println(responseContent);
    return responseContent;
}

%>

<%
WeiXinHandler t=new WeiXinHandler();
t.valid();
%>