微信分享功能开发

用了一天时间，把微信发送给朋友和分享到朋友圈功能开发出来，在这里给大家分享一下，避免大家走弯路。

一.服务器端程序

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;
/**
 * 
 * 
 *<p>Project:mryl_phone_v2</p> 
 * 
 *<p>Package:com.wiimedia.controller</p> 
 * 
 *<p>Description:微信分享Controller</p>
 *
 *<p>Company:Wiimedia</p>
 *
 *@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;    
            } 
        }


    }
    /**
     * 
     *<p>Project:mryl_phone_v2</p> 
     * 
     *<p>:mryl_phone_v2</p> 
     * 
     *<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>
     *
     *<p>Company:Wiimedia</p>
     *
     *@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));
    }

    /**
     * 
     *<p>Project:mryl_phone_v2</p> 
     * 
     *<p>:mryl_phone_v2</p> 
     * 
     *<p>Description:根据标签,时间戳,密匙,URL进行签名</p>
     *
     *<p>Company:Wiimedia</p>
     *
     *@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

① Ticket

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,

---

---

能力有限，希望有问题及时邮箱或留言，谢谢.

Email:358106209@qq.com