微信分享页面配置

微信JS-SDK说明文档 ：https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421141115

步骤一：绑定域名

先登录微信公众平台进入“公众号设置”的“功能设置”里填写“JS接口安全域名”。

步骤二：引入JS文件

在需要调用JS接口的页面引入如下JS文件，（支持https）：http://res.wx.qq.com/open/js/jweixin-1.2.0.js

获取借口参数工具类

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 java.security.MessageDigest;  import java.util.Date;  import java.util.Formatter;  import java.util.HashMap;  import java.util.List;  import java.util.Map;  import java.util.UUID;    import javax.servlet.ServletContext;  import javax.servlet.http.HttpServletRequest;    import org.apache.commons.lang.StringUtils;       public class WeixinUtils {  private static final String openIdUrl = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID1&secret=SECRET1&code=CODE1&grant_type=authorization_code";      private static final String accessTokenUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID1&secret=SECRET1";      private static final String ticketUrl = "http://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=ACCESS_TOKEN1";      public static final String appId = "";      public static final String appSecret = "";      public static final int baseLife = 3;      public static final String EndTime = "2015-11-31 00:00:01";    private static String accessToken=null;    private static String jsapiTicket=null;      public static String getOpenId(HttpServletRequest request) throws Exception {          String openId = null;          String code = request.getParameter("code");          if (StringUtils.isNotEmpty(code)) {              String url = openIdUrl.replace("APPID1", appId)                      .replace("SECRET1", appSecret).replace("CODE1", code);              String result = getURLContent(url);              System.out.println(result);              openId = result.split("openid")[1].split("scope")[0]                      .replaceAll("\"", "").replaceAll(",", "")                      .replaceAll(" ", "").replaceAll(":", "");              System.out.println("openId" + openId);          }          return openId;      }        public static Map<String, String> setShareConfig(              HttpServletRequest request, String url) throws Exception {          ServletContext context = request.getSession().getServletContext();           //accessToken = (String) context.getAttribute("accessToken");          if (StringUtils.isEmpty(accessToken)) {              accessToken = getAccessToken();              context.setAttribute("accessToken", accessToken);              /*System.out.println(DateUtils.format(new Date(),                      DateUtils.DATETIME_FORMAT)                      + "-------accessToken 超时，重新获取--------" + accessToken);  */        }           //jsapiTicket = (String) context.getAttribute("jsapiTicket");          if (StringUtils.isEmpty(jsapiTicket)) {              jsapiTicket = getTicket(accessToken);              context.setAttribute("jsapiTicket", jsapiTicket);            /*  System.out.println(DateUtils.format(new Date(),                      DateUtils.DATETIME_FORMAT)                      + "-------jsapiTicket 超时，重新获取--------" + jsapiTicket);  */        }          Map<String, String> ret = sign(jsapiTicket, url);          request.setAttribute("url", ret.get("url"));          request.setAttribute("jsapi_ticket", ret.get("jsapi_ticket"));          request.setAttribute("nonceStr", ret.get("nonceStr"));          request.setAttribute("timestamp", ret.get("timestamp"));          request.setAttribute("signature", ret.get("signature"));          request.setAttribute("appId", appId);          return ret;      };        private static String getTicket(String accessToken) throws Exception {          String ticket = null;          String url = ticketUrl.replace("ACCESS_TOKEN1", accessToken);          String result = getURLContent(url);          System.out.println(result);          ticket = result.split("ticket")[1].split("expires_in")[0]                  .replaceAll("\"", "").replaceAll(",", "").replaceAll(" ", "")                  .replaceAll(":", "");          System.out.println("ticket:" + ticket);          return ticket;      }        private static String getAccessToken() throws Exception {          String accessToken = null;          String url = accessTokenUrl.replace("APPID1", appId).replace("SECRET1",                  appSecret);          String result = getURLContent(url);          System.out.println(result);          accessToken = result.split("access_token")[1].split("expires_in")[0]                  .replaceAll("\"", "").replaceAll(",", "").replaceAll(" ", "")                  .replaceAll(":", "");          System.out.println("accessToken:" + accessToken);          return accessToken;      }        private static String getURLContent(String url)              throws MalformedURLException, IOException {          String result = "";          BufferedReader in = null;          URL realUrl = new URL(url);          // 打开和URL之间的连接          URLConnection connection = realUrl.openConnection();          // 设置通用的请求属性          connection.setRequestProperty("accept", "*/*");          connection.setRequestProperty("connection", "Keep-Alive");          connection.setRequestProperty("user-agent",                  "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");          // 建立实际的连接          connection.connect();          // 获取所有响应头字段          Map<String, List<String>> map = connection.getHeaderFields();          // 定义 BufferedReader输入流来读取URL的响应          in = new BufferedReader(new InputStreamReader(                  connection.getInputStream()));          String line;          while ((line = in.readLine()) != null) {              result += line;          }          // 使用finally块来关闭输入流          if (in != null) {              in.close();          }          return result;      }        private static Map<String, String> sign(String jsapi_ticket, String url) {          Map<String, String> ret = new HashMap<String, String>();          String nonce_str = UUID.randomUUID().toString().replaceAll("-", "")                  .substring(0, 16).toLowerCase();          String timestamp = Long.toString(System.currentTimeMillis() / 1000);          String string1;          String signature = "";          // 注意这里参数名必须全部小写，且必须有序          string1 = "jsapi_ticket=" + jsapi_ticket + "&noncestr=" + nonce_str                  + "×tamp=" + timestamp + "&url=" + url;          try {              MessageDigest crypt = MessageDigest.getInstance("SHA-1");              crypt.reset();              crypt.update(string1.getBytes("UTF-8"));              signature = byteToHex(crypt.digest());              System.out.println("key--" + string1);              System.out.println("url--" + url);              System.out.println("jsapi_ticket--" + jsapi_ticket);              System.out.println("nonceStr--" + nonce_str);              System.out.println("timestamp--" + timestamp);              System.out.println("signature--" + signature);          } catch (Exception 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;      }        /**       * 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;      }        /**       * 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;      }          private void resetAccessTokenTicket(){//每两小时重置一次accessToken和jsapiTicket    accessToken=null;    jsapiTicket=null;    System.out.println("重置accessToken和jsapiTicket");    }}

控制器方法

//微信jssdk@RequestMapping(value="/getJssdk")public void getJssdk(HttpServletRequest request,HttpServletResponse response,Model model,@RequestParam(defaultValue = "", required = false, value = "url") String url){try {String ua = ((HttpServletRequest) request).getHeader("user-agent")          .toLowerCase(); if (ua.indexOf("micromessenger") > 0) {Map<String,String> map= WeixinUtils.setShareConfig(request, url);WebUtils.flushObject(map, response);}} catch (Exception e) {e.printStackTrace();WebUtils.flushFailureByMsg(response, "系统出错请与工作人员联系!");}}

页面js

$.ajax({      type : "post",      dataType : "json",      url : "",      data : {          url : location.href.split('#')[0]    },      complete : function() {      },      success : function(msg) {      console.log(msg.jsapi_ticket);            wx.config({                  debug : false, //  调试                appId : '', // 必填，公众号的唯一标识                  timestamp : msg.timestamp, // 必填，生成签名的时间戳                  nonceStr : msg.nonceStr, // 必填，生成签名的随机串                  signature : msg.signature,// 必填，签名，见附录1                  jsApiList : [  'checkJsApi',                           'onMenuShareTimeline',                          'onMenuShareAppMessage',                          'onMenuShareQQ',                          'onMenuShareWeibo',                          'showOptionMenu',                           'onMenuShareQZone', ]              // 必填，需要使用的JS接口列表，所有JS接口列表见附录2              });              },  });    var shareTitle = "法国游已经近在咫尺了，是朋友就帮我一把吧！";  var shareDesc = "法国游已经近在咫尺了，是朋友就帮我一把吧！";  var shareImg = "http://c.csdnimg.cn/jifen/images/xunzhang/xunzhang/bokezhuanjiamiddle.png";  var url = window.location.href;   wx.ready(function() {  sharedata = {    title: shareTitle, // 分享标题    desc: shareDesc , // 分享描述    link: '', // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致    mgUrl:shareImg,// 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(){       //alert('分享成功');      },      cancel: function(){        //alert('您取消了分享');      }    };wx.onMenuShareAppMessage(sharedata);wx.onMenuShareTimeline(sharedata);wx.onMenuShareQZone(sharedata);wx.onMenuShareWeibo(sharedata);});