微信分享功能开发

package
com.wiimedia.controller;

import
java.io.IOException;

import
java.security.MessageDigest;

import
java.security.NoSuchAlgorithmException;

import
java.text.ParseException;

import
java.text.SimpleDateFormat;

import
java.util.Arrays;

import
java.util.Date;

import
javax.servlet.http.HttpServletRequest;

import
javax.servlet.http.HttpServletResponse;

import
org.springframework.beans.factory.annotation.Autowired;

import
org.springframework.stereotype.Controller;

import
org.springframework.web.bind.annotation.RequestMapping;

import
com.google.gson.Gson;

import
com.wiimedia.model.Ticket;

import
com.wiimedia.service.ArticleSolrService;

import
com.wiimedia.service.TicketRepository;

import
com.wiimedia.service.TicketRepositorySolr;

import
com.wiimedia.utils.GetRandomStr;

import
com.wiimedia.utils.SignatureBean;

import
com.wiimedia.utils.weixin.WeixinUtil;

/**

*

*Project:mryl_phone_v2

*

*Package:com.wiimedia.controller

*

*Description:微信分享Controller

*

*Company:Wiimedia

*

*@Athor:SongJia

*

*@Date:2016-7-15 上午09:34:10

*

*/

@Controller

@RequestMapping
(
"/WeixinshareController/Api/Inteface"
)

public
class
WeixinshareController {

@Autowired

private
TicketRepositorySolr ticketRepositorySolr;

@RequestMapping
(
"/getSignature"
)

public
String getSignature( HttpServletRequest request,

HttpServletResponse response)
throws
IOException, ParseException{

//获取签名页面链接

String url = request.getParameter(
"url"
);

SimpleDateFormat format =
new
SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss"
);

//从数据库中获取标签，并检查标签是否过期

Ticket oldticket = ticketRepositorySolr.getTicketById(
"20160114wiimediamrylsong1152"
);

if
(oldticket==
null
){
//第一次访问，标签不存在。

executeTicket(response,
"1"
,url,format);

return
null
;

}
else
{
//标签存在，判断标签是否超时

String oldAcquiretime = oldticket.getAcquiretime();

long
difference=format.parse(format.format(
new
Date())).getTime()-format.parse(oldAcquiretime).getTime();

if
(difference>
7100000
){
//标签超时,重新到微信服务器请求标签超时时间为7200秒（7200000毫秒）

executeTicket(response,
"2"
,url,format);

return
null
;

}
else
{
//标签未超时

/**

* 注意事项

* 1.签名用的noncestr和timestamp必须与wx.config中的nonceStr和timestamp相同。

* 2.签名用的url必须是调用JS接口页面的完整URL。

* 3.出于安全考虑，开发者必须在服务器端实现签名的逻辑。

*

****根据第1点要求  signature 配置的时候很容易出错，需要把生成 Ticket的 noncestr和 timestamp传给客户端***

*/

String signature = signature(oldticket.getTicket(),oldticket.getTimestamp(),oldticket.getNoncestr(),url);

SignatureBean signatureBean =
new
SignatureBean();

signatureBean.setNoncestr(oldticket.getNoncestr());

signatureBean.setSignature(signature);

signatureBean.setTimestamp(oldticket.getTimestamp());

signatureBean.setUrl(url);

response.setContentType(
"text/html;charset=UTF-8"
);

response.getWriter().print(
new
Gson().toJson(signatureBean));

return
null
;

}

/**

*

*Project:mryl_phone_v2

*

*:mryl_phone_v2

*

*<p>Description:更新和获取ticket的方法，因为用的solr所以更新和新增是一样的ID无则添加，有责更新</p>

*

*Company:Wiimedia

*

*@Athor:SongJia

*

*@Date:2016-7-15 上午09:45:00

*

*/

public
void
executeTicket(HttpServletResponse response,String flag,String url,SimpleDateFormat format)
throws
IOException{

//获取签名随即字符串

GetRandomStr randomStr =
new
GetRandomStr();

String noncestr = randomStr.getRandomString(
15
);

//获取签名时间戳

String timestamp = Long.toString(System.currentTimeMillis());

//请求accessToken

String accessTokenUrl =
"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=您的APPID&secret=您的密匙"
;

String tokenJson = WeixinUtil.httpRequest(accessTokenUrl,
"GET"
,
null
);

Gson gson =
new
Gson();

ShareAccess_Token token = gson.fromJson(tokenJson, ShareAccess_Token.
class
);

String to= token.getAccess_token();

//获取标签

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

String ticketJson = WeixinUtil.httpRequest(urlTicket,
"GET"
,
null
);

Ticket ticket = gson.fromJson(ticketJson, Ticket.
class
);

String t = ticket.getTicket();

//String uuid = UUID.randomUUID().toString().trim().replaceAll("-", "");

//我的Ticket ID是写死的

String acquiretime = format.format(
new
Date());

ticket.setTid(
"20160114wiimediamrylsong1152"
);

ticket.setAcquiretime(acquiretime);

ticket.setTimestamp(timestamp);

ticket.setNoncestr(noncestr);

//因为用的SOLR所以更新和添加的方法是一样的，可以根据自己具体需求进行修改，本文不再贴出代码.

if
(flag.equals(
"2"
)){

ticketRepositorySolr.addTicketToSolr(ticket);

}
else
{

ticketRepositorySolr.addTicketToSolr(ticket);

}

/**

* 注意事项

* 1.签名用的noncestr和timestamp必须与wx.config中的nonceStr和timestamp相同。

* 2.签名用的url必须是调用JS接口页面的完整URL。

* 3.出于安全考虑，开发者必须在服务器端实现签名的逻辑。

*

*根据第1点要求  signature 配置的时候很容易出错，需要把生成 Ticket的 noncestr和 timestamp传给客户端*

*/

String signature = signature(t,timestamp,noncestr,url);

SignatureBean signatureBean =
new
SignatureBean();

signatureBean.setNoncestr(noncestr);

signatureBean.setSignature(signature);

signatureBean.setTimestamp(timestamp);

signatureBean.setUrl(url);

response.setContentType(
"text/html;charset=UTF-8"
);

response.getWriter().print(
new
Gson().toJson(signatureBean));

}

/**

*

*Project:mryl_phone_v2

*

*:mryl_phone_v2

*

*Description:根据标签,时间戳,密匙,URL进行签名

*

*Company:Wiimedia

*

*@Athor:SongJia

*

*@Date:2016-7-15 上午09:37:13

*

*/

private
String signature(String jsapi_ticket, String timestamp, String noncestr, String url) {

jsapi_ticket =
"jsapi_ticket="
+ jsapi_ticket;

timestamp =
"timestamp="
+ timestamp;

noncestr =
"noncestr="
+ noncestr;

url =
"url="
+ url;

String[] arr =
new
String[] { jsapi_ticket, timestamp, noncestr, url };

// 将token、timestamp、nonce,url参数进行字典序排序

Arrays.sort(arr);

StringBuilder content =
new
StringBuilder();

for
(
int
i =
0
; i < arr.length; i++) {

content.append(arr[i]);

if
(i != arr.length -
1
) {

content.append(
"&"
);

}

MessageDigest md =
null
;

String tmpStr =
null
;

try
{

md = MessageDigest.getInstance(
"SHA-1"
);

// 将三个参数字符串拼接成一个字符串进行sha1加密

byte
[] digest = md.digest(content.toString().getBytes());

tmpStr = byteToStr(digest);

}
catch
(NoSuchAlgorithmException e) {

e.printStackTrace();

}

content =
null
;

return
tmpStr;

}

/**

* 将字节转换为十六进制字符串

*

* @param mByte

* @return

*/

private
static
String byteToHexStr(
byte
mByte) {

char
[] Digit = {
‘0‘
,
‘1‘
,
‘2‘
,
‘3‘
,
‘4‘
,
‘5‘
,
‘6‘
,
‘7‘
,
‘8‘
,
‘9‘
,
‘A‘
,
‘B‘
,
‘C‘
,
‘D‘
,
‘E‘
,
‘F‘
};

char
[] tempArr =
new
char
[
2
];

tempArr[
0
] = Digit[(mByte >>>
4
) &
0X0F
];

tempArr[
1
] = Digit[mByte &
0X0F
];

String s =
new
String(tempArr);

return
s;

}

/**

* 将字节数组转换为十六进制字符串

*

* @param byteArray

* @return

*/

private
static
String byteToStr(
byte
[] byteArray) {

String strDigest =
""
;

for
(
int
i =
0
; i < byteArray.length; i++) {

strDigest += byteToHexStr(byteArray[i]);

}

return
strDigest;

}

class
ShareAccess_Token{

private
String access_token;

private
String expires_in;

public
String getAccess_token() {

return
access_token;

}

public
void
setAccess_token(String accessToken) {

access_token = accessToken;

}

public
String getExpires_in() {

return
expires_in;

}

public
void
setExpires_in(String expiresIn) {

expires_in = expiresIn;

}

二、客户端代码.

<script type=
"text/javascript"
>

var
url = window.location.href;

var
articleId =
""
;

var
shareTitle=
"明日医疗资讯"
;

var
shareImgUrl=
""
;

var
userinfo = localStorage.getItem(
"_userinfo"
);

var
timestamp;

var
noncestr;

var
signature;

//获取签名

$.ajax({

type:
"GET"
,

url:
"WeixinshareController/Api/Inteface/getSignature"
,

//data:{timestamp:timestamp,noncestr:noncestr,url:url},

data:{url:url},

success:
function
(data){

var
objData=JSON.parse(data);

timestamp=objData.timestamp;

noncestr=objData.noncestr;

signature=objData.signature;

console.log(objData);

wxShare();

}

});

function
wxShare(){

wx.config({

debug:
false
,

// 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。

appId:
‘您的appid‘
,
// 和获取Ticke的必须一样------必填，公众号的唯一标识

timestamp:timestamp,
// 必填，生成签名的时间戳

nonceStr: noncestr,
// 必填，生成签名的随机串

signature: signature,
// 必填，签名，见附录1

jsApiList: [

‘onMenuShareAppMessage‘

]
// 必填，需要使用的JS接口列表，所有JS接口列表见附录2

});

}

wx.ready(
function
(){

//config信息验证后会执行ready方法，所有接口调用都必须在config接口获得结果之后，

//config是一个客户端的异步操作，所以如果需要在页面加载时就调用相关接口，则须把相关

//接口放在ready函数中调用来确保正确执行。对于用户触发时才调用的接口，则可以直接调用，不需要放在ready函数中。

//----------“分享给朋友”

wx.onMenuShareAppMessage({

title:
"明日医疗资讯"
,
// 分享标题

desc: shareTitle,
// 分享描述

link: url,
// 分享链接

imgUrl: shareImgUrl,
// 分享图标

type:
‘‘
,
// 分享类型,music、video或link，不填默认为link

dataUrl:
‘‘
,
// 如果type是music或video，则要提供数据链接，默认为空

success:
function
() {

// 用户确认分享后执行的回调函数、

},

cancel:
function
() {

// 用户取消分享后执行的回调函数

}

});

//------------"分享到朋友圈"

wx.onMenuShareTimeline({

title:
‘明日医疗资讯‘
,
// 分享标题

link:
‘‘
,
// 分享链接

imgUrl: shareImgUrl,
// 分享图标

success:
function
() {

// 用户确认分享后执行的回调函数

},

cancel:
function
() {

// 用户取消分享后执行的回调函数

}

});

//-------------分享到QQ

wx.onMenuShareQQ({

title:
‘明日医疗资讯‘
,
// 分享标题

desc: shareTitle,
// 分享描述

link:
‘‘
,
// 分享链接

imgUrl: shareImgUrl,
// 分享图标

success:
function
() {

// 用户确认分享后执行的回调函数

},

cancel:
function
() {

// 用户取消分享后执行的回调函数

}

});

//-------------分享到QQ空间

wx.onMenuShareQZone({

title:
‘明日医疗资讯‘
,
// 分享标题

desc: shareTitle,
// 分享描述

link:
‘‘
,
// 分享链接

imgUrl: shareImgUrl,
// 分享图标

success:
function
() {

// 用户确认分享后执行的回调函数

},

cancel:
function
() {

// 用户取消分享后执行的回调函数

}

});

三、服务器需要的工具类和Model

   package

   com.wiimedia.model;
  
   public

   class

   Ticket{
  
   private

   String tid;
  
   private

   String ticket; 
  
   private

   String errcode;
  
   private

   String errmsg; 
  
   private

   String expires_in;
  
   private

   String acquiretime;
  
   private

   String noncestr;
  
   private

   String timestamp;
  
   public

   Ticket(String tid, String ticket, String errcode, String errmsg,
  
   String expiresIn, String acquiretime, String noncestr,
  
   String timestamp) {
  
   super

   ();
  
   this

   .tid = tid;
  
   this

   .ticket = ticket;
  
   this

   .errcode = errcode;
  
   this

   .errmsg = errmsg;
  
   expires_in = expiresIn;
  
   this

   .acquiretime = acquiretime;
  
   this

   .noncestr = noncestr;
  
   this

   .timestamp = timestamp;
  
   }
  
   public

   String getTid() {
  
   return

   tid;
  
   }
  
   public

   void

   setTid(String tid) {
  
   this

   .tid = tid;
  
   }
  
   public

   String getTicket() {
  
   return

   ticket;
  
   }
  
   public

   void

   setTicket(String ticket) {
  
   this

   .ticket = ticket;
  
   }
  
   public

   String getErrcode() {
  
   return

   errcode;
  
   }
  
   public

   void

   setErrcode(String errcode) {
  
   this

   .errcode = errcode;
  
   }
  
   public

   String getErrmsg() {
  
   return

   errmsg;
  
   }
  
   public

   void

   setErrmsg(String errmsg) {
  
   this

   .errmsg = errmsg;
  
   }
  
   public

   String getExpires_in() {
  
   return

   expires_in;
  
   }
  
   public

   void

   setExpires_in(String expiresIn) {
  
   expires_in = expiresIn;
  
   }
  
   public

   String getAcquiretime() {
  
   return

   acquiretime;
  
   }
  
   public

   void

   setAcquiretime(String acquiretime) {
  
   this

   .acquiretime = acquiretime;
  
   }
  
   public

   String getNoncestr() {
  
   return

   noncestr;
  
   }
  
   public

   void

   setNoncestr(String noncestr) {
  
   this

   .noncestr = noncestr;
  
   }
  
   public

   String getTimestamp() {
  
   return

   timestamp;
  
   }
  
   public

   void

   setTimestamp(String timestamp) {
  
   this

   .timestamp = timestamp;
  
   }
  
   }
  
   ② 添加到数据库的业务根据自己需要进行实现. 
③ GetRandomStr
  
    package

    com.wiimedia.utils;
   
    import

    java.util.Random;
   
    public

    class

    GetRandomStr {
   
    /**
   
    * 
   
    *<p>Project:mryl_phone_v2</p> 
   
    * 
   
    *<p>:mryl_phone_v2</p> 
   
    * 
   
    *<p>Description:生成随即字符串 </p>
   
    *
   
    *<p>Company:Wiimedia</p>
   
    *
   
    *@Athor:SongJia
   
    *
   
    *@Date:2016-7-14 上午11:14:46 
   
    *
   
    */
   
    public

    String getRandomString(

    int

    length) {
   
    String base = 

    "abcdefghijklmnopqrstuvwxyz0123456789"

    ; 
   
    Random random = 

    new

    Random(); 
   
    StringBuffer sb = 

    new

    StringBuffer(); 
   
    for

    (

    int

    i = 

    0

    ; i < length; i++) { 
   
    int

    number = random.nextInt(base.length()); 
   
    sb.append(base.charAt(number)); 
   
    } 
   
    return

    sb.toString(); 
   
    }
   
    }
   
    ④ SignatureBean
   
     package

     com.wiimedia.utils;
    
     public

     class

     SignatureBean {
    
     private

     String noncestr;
    
     private

     String url;
    
     private

     String timestamp;
    
     private

     String signature;
    
     public

     String getNoncestr() {
    
     return

     noncestr;
    
     }
    
     public

     void

     setNoncestr(String noncestr) {
    
     this

     .noncestr = noncestr;
    
     }
    
     public

     String getUrl() {
    
     return

     url;
    
     }
    
     public

     void

     setUrl(String url) {
    
     this

     .url = url;
    
     }
    
     public

     String getTimestamp() {
    
     return

     timestamp;
    
     }
    
     public

     void

     setTimestamp(String timestamp) {
    
     this

     .timestamp = timestamp;
    
     }
    
     public

     String getSignature() {
    
     return

     signature;
    
     }
    
     public

     void

     setSignature(String signature) {
    
     this

     .signature = signature;
    
     }
    
     }
    
     ⑤ WeixinUtil
    
      package

      com.wiimedia.utils.weixin;
     
      import

      java.io.BufferedReader;
     
      import

      java.io.InputStream;
     
      import

      java.io.InputStreamReader;
     
      import

      java.io.OutputStream;
     
      import

      java.net.ConnectException;
     
      import

      java.net.URL;
     
      import

      javax.net.ssl.HttpsURLConnection;
     
      import

      javax.net.ssl.SSLContext;
     
      import

      javax.net.ssl.SSLSocketFactory;
     
      import

      javax.net.ssl.TrustManager;
     
      /**
     
      * 
     
      *<p>Project:mryl_phone_v2</p> 
     
      * 
     
      *<p>:mryl_phone_v2</p> 
     
      * 
     
      *<p>Description:公众平台接口工具类</p>
     
      *
     
      *<p>Company:Wiimedia</p>
     
      *
     
      *@Athor:SongJia
     
      *
     
      *@Date:2016-7-15 上午09:37:13 
     
      *
     
      */
     
      public

      class

      WeixinUtil {
     
      /** 
     
      * 发起https请求并获取结果 
     
      * 
     
      * @param requestUrl 请求地址 
     
      * @param requestMethod 请求方式（GET、POST） 
     
      * @param outputStr 提交的数据 
     
      * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值) 
     
      */
     
      public

      static

      String httpRequest(String requestUrl, String requestMethod, String outputStr) { 
     
      StringBuffer buffer = 

      new

      StringBuffer(); 
     
      try

      { 
     
      // 创建SSLContext对象，并使用我们指定的信任管理器初始化 
     
      TrustManager[] tm = { 

      new

      MyX509TrustManager() }; 
     
      SSLContext sslContext = SSLContext.getInstance(

      "SSL"

      , 

      "SunJSSE"

      ); 
     
      sslContext.init(

      null

      , tm, 

      new

      java.security.SecureRandom()); 
     
      // 从上述SSLContext对象中得到SSLSocketFactory对象 
     
      SSLSocketFactory ssf = sslContext.getSocketFactory(); 
     
      URL url = 

      new

      URL(requestUrl); 
     
      HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection(); 
     
      httpUrlConn.setSSLSocketFactory(ssf); 
     
      httpUrlConn.setDoOutput(

      true

      ); 
     
      httpUrlConn.setDoInput(

      true

      ); 
     
      httpUrlConn.setUseCaches(

      false

      ); 
     
      // 设置请求方式（GET/POST） 
     
      httpUrlConn.setRequestMethod(requestMethod); 
     
      if

      (

      "GET"

      .equalsIgnoreCase(requestMethod)) 
     
      httpUrlConn.connect(); 
     
      // 当有数据需要提交时 
     
      if

      (

      null

      != outputStr) { 
     
      OutputStream outputStream = httpUrlConn.getOutputStream(); 
     
      // 注意编码格式，防止中文乱码 
     
      outputStream.write(outputStr.getBytes(

      "UTF-8"

      )); 
     
      outputStream.close(); 
     
      } 
     
      // 将返回的输入流转换成字符串 
     
      InputStream inputStream = httpUrlConn.getInputStream(); 
     
      InputStreamReader inputStreamReader = 

      new

      InputStreamReader(inputStream, 

      "utf-8"

      ); 
     
      BufferedReader bufferedReader = 

      new

      BufferedReader(inputStreamReader); 
     
      String str = 

      null

      ; 
     
      while

      ((str = bufferedReader.readLine()) != 

      null

      ) { 
     
      buffer.append(str); 
     
      } 
     
      bufferedReader.close(); 
     
      inputStreamReader.close(); 
     
      // 释放资源 
     
      inputStream.close(); 
     
      inputStream = 

      null

      ; 
     
      httpUrlConn.disconnect(); 
     
      return

      buffer.toString(); 
     
      } 

      catch

      (ConnectException ce) { 
     
      ce.printStackTrace(); 
     
      } 

      catch

      (Exception e) { 
     
      e.printStackTrace();
     
      } 
     
      return

      ""

      ; 
     
      }
     
      }
     
 四、至此，分享功能已经开发完成，但是，在生成signature的时候会遇到很多问题，这里提供一些wx.config失败的排错方法。
① 确认自己的生成的signature是否正确 
在微信提供的http://mp.weixin.qq.com/debug/cgi-bin/sandbox?t=jsapisign进行校验
② wx.config中使用的noncestr, timestamp与用以签名中的对应noncestr, timestamp是否一致一致…如上面（一.服务器代码） 
（有可能因为JS页面加载顺序问题，服务器生成的signature，noncestr，timestamp在wx.config中没有获取到）。
③ 确认url是页面完整的url，包括GET参数部分 
需要去掉#后面的部分
④ config 中的 appid 与用来获取 jsapi_ticket 的 appid 是否一致
⑤ 报错｛errmsg：config:ok}是debug的正常返回把调试模式关掉就OK 
wx.config debug: false, 
本文已被整理到了《Android微信开发教程汇总》，《java微信开发教程汇总》欢迎大家学习阅读。