• 微信公众号投票活动开发


    Emmmmm 今天Leader不在家,悄悄給大家分享一个微信公众号网页开发,以及获取用户信息开发。

    今天leader给了一个公众号投票的需求
    
    1、每个微信只能投一票
    2、不能重复投票。防止刷票。
    3、可以正常分享页面。
    
    我觉得这些需求对我这个牛(菜)逼(鸟)轰(一)轰(个)的程序员来说不是个什么大问题。
    
    哈哈哈哈哈  好不吹牛逼了。来先说思路。
    
    
    微信开发文档----https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421140842/
    我不喜欢太多字。你们仔鸡看吧。
    

    先画一个牛城图。。。

    整体的精髓都在图上了。原创不易,转载请说明出处。谢谢谢谢。哪里不懂可以直接联系我

    用户授权并获取code
    
    参数说明
    appid=APPID(公众号唯一标识)
    redirect_uri=REDIRECT_URI(授权后重定向的回调链接地址)
    response_type=code(返回类型,无需更改)
    scope=SCOPE(snsapi_base ,不弹出授权页面,直接跳转,只能获取用户openid),snsapi_userinfo 弹出授权页面,可通过openid拿到昵称、性别、所在地。)
    state=STATE(重定向后会带上state参数,开发者可以填写任意参数值)
    #wechat_redirect(无需更改)
    
    地址实例(虽是测试号,但我还是隐藏部分信息)红色字体需要根据实际更改。
    https://open.weixin.qq.com/connect/oauth2/authorize?appid=xxxxxxxxxxx&redirect_uri=www.sohu.com&response_type=code&scope=snsapi_userinfo&state=1#wechat_redirect
    

    上代码吧。

    
     package cn.builder.controller.activity;
    
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.apache.commons.lang3.StringUtils;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.util.CollectionUtils;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.ResponseBody;
    import org.springframework.web.servlet.ModelAndView;
    
    import cn.builder.controller.base.BaseController;
    import cn.builder.entity.Page;
    import cn.builder.service.activity.ActivityService;
    import cn.builder.util.AppUtil;
    import cn.builder.util.DateUtil;
    import cn.builder.util.Jurisdiction;
    import cn.builder.util.PageData;
    
    import net.sf.json.JSONObject;
    
    @Controller
    @RequestMapping(value = "/activity")
    public class ActivityController extends BaseController {
    
        @Resource(name="activityService")
        private ActivityService activityService;
    
        private String menuUrl ="activity/getVoteList.do";
        /**
         * 获取用户code值
         * 
         * @param
         * @throws Exception
         */
        @RequestMapping(value = "/getCodeUrl")
        public void getCode(HttpServletResponse response, HttpServletRequest request) throws Exception {
            String url = WeChatUtil.getCodeUrl("http://cnbuilder.cn/activity/voteList");
            response.sendRedirect(url);
        }
    
        /**
         * 音频列表以及用户是否投票
         * 
         * @param
         * @throws Exception
         */
        @RequestMapping(value = "/voteList")
        public ModelAndView UserLogin(HttpServletRequest request, HttpServletResponse response) throws Exception {
    
            ModelAndView mv = this.getModelAndView();
            // 1.获取code
            String code = request.getParameter("code");
            Map<String, Object> map =new HashMap<>();
            try {
                  map = WeChatUtil.getOpenId(code);
            } catch (Exception e) {
                response.sendRedirect("http://cnbuilder.cn/activity/getCodeUrl");
                return null;
            }
    
            if (code==null||CollectionUtils.isEmpty(map)||map==null) {
                response.sendRedirect("http://cnbuilder.cn/activity/getCodeUrl");
                return null;
            }
            // 2.根据code换取openid
            String openId = (String) map.get("openId");
    
            PageData pd = new PageData();
            pd.put("u_uuid", openId);
            PageData vote_record = activityService.userIsExistence(pd);
            if (vote_record == null) {
                // 3.然后通过openid获取用户信息
                // 3.1先获取accessToken
                String accessToken = (String) map.get("accessToken");
                // 3.2获取用户信息
                JSONObject userInfo = WeChatUtil.getUserInfo2(openId, accessToken);
                pd.put("u_name", userInfo.get("nickname"));
                pd.put("u_image", userInfo.get("headimgurl"));
                pd.put("u_register_time", DateUtil.getTime());
                activityService.saveUserInfo(pd);
            }
            // 查询所有投票数据
            略。。。。
             //返回页面
            mv.setViewName("activity/activity");
    
            return mv;
            }
     }
     //工具类
     package cn.cnbuilder.controller.activity;
    
    import java.io.BufferedReader;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.OutputStream;
    import java.io.UnsupportedEncodingException;
    import java.net.ConnectException;
    import java.net.URL;
    import java.security.MessageDigest;
    import java.security.NoSuchAlgorithmException;
    import java.util.Formatter;
    import java.util.HashMap;
    import java.util.Map;
    import java.util.UUID;
    
    import javax.annotation.Resource;
    import javax.net.ssl.HttpsURLConnection;
    import javax.net.ssl.SSLContext;
    import javax.net.ssl.SSLSocketFactory;
    import javax.net.ssl.TrustManager;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import cn.cnbuilder.dao.redis.RedisDao;
    import cn.cnbuilder.entity.AccessToken;
    import cn.cnbuilder.entity.TicketJson;
    import cn.cnbuilder.util.MyX509TrustManager;
    import cn.cnbuilder.util.PageData;
    import cn.cnbuilder.util.Tools;
    import cn.cnbuilder.util.wxpay.Sign;
    
    import net.sf.json.JSONException;
    import net.sf.json.JSONObject;
    
    /**
     * 公众平台通用接口工具类
     */
    public class WeChatUtil {
    
        @Resource(name = "redisDaoImpl")
        private RedisDao redisDaoImpl;
    
        private static Logger log = LoggerFactory.getLogger(WeChatUtil.class);
    
        // 公众号的appid和secretid
        public static String WEIXIN_APPID = "xxxxxxxxxxxx";
        public static String WEIXIN_APPSECRET = "xxxxxxxxxxxxxx";
    
        // 获取access_token的接口地址(GET) 限200(次/天)
        public final static String access_Token_Url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="
    + WEIXIN_APPID + "&secret=" + WEIXIN_APPSECRET;
        // 拉取用户信息(需scope为 snsapi_userinfo) ACCESS_TOKEN 是网页授权的ACCESS_TOKEN
        public final static String user_Info_Url_login = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=ACCESS_TOKEN&openid=OPENID";
    
        // 获取用户基本信息(包括UnionID机制)
        public final static String user_Info_Url = "https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID&lang=zh_CN";
    
        // 用户同意授权,获取code
        public final static String scope_Code_Url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid="
                + WEIXIN_APPID
                + "&redirect_uri=REDIRECT_URI&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect";
        // 通过code换取网页授权access_token
        public final static String scope_OpenId_Url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid="
                + WEIXIN_APPID + "&secret=" + WEIXIN_APPSECRET + "&code=CODE&grant_type=authorization_code";
        // 由于access_token拥有较短的有效期,当access_token超时后,可以使用refresh_token进行刷新,refresh_token有效期为30天,当refresh_token失效之后,需要用户重新授权。
        public final static String refresh_token_Url = "https://api.weixin.qq.com/sns/oauth2/refresh_token?appid="
                + WEIXIN_APPID + "&grant_type=refresh_token&refresh_token=REFRESH_TOKEN";
    
        // 获取用户code值
        public final static String get_code_url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid="
                + WEIXIN_APPID
                + "&redirect_uri=REDIRECT_URI&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
    
        //获取jsticket
        public final static String get_jsticket = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi";
    
    
    
        /**
         * 通过code获取网页授权 和用户openid
         * 
         * @param code
         * @return
         */
        public static Map<String, Object> getOpenId(String code) {
            Map<String, Object> resMap = new HashMap<>();
            String openId = null;
            String accessToken = null;
            String refreshToken = null;
            String url = scope_OpenId_Url.replace("CODE", code);
            JSONObject jsonObject = httpRequest(url, "POST", null);
            log.info("WeChatUtil getOpenId=" + jsonObject);
            if (null != jsonObject) {
                if (!jsonObject.containsKey("errcode")) {
                    openId = jsonObject.getString("openid");
                    accessToken = jsonObject.getString("access_token");
                    refreshToken = jsonObject.getString("refresh_token");
                    resMap.put("openId", openId);
                    resMap.put("accessToken", accessToken);
                    resMap.put("refresh_token", refreshToken);
                    return resMap;
                } else {
                    int errorCode = jsonObject.getInt("errcode");
                    String errorMsg = jsonObject.getString("errmsg");
                    log.info("通过code换取网页授权失败errorCode:{" + errorCode + "},errmsg:{" + errorMsg + "}");
                    System.out.println("通过code换取网页授权失败errorCode:{" + errorCode + "},errmsg:{" + errorMsg + "}");
    
                }
            }
            return resMap;
    
        }
    
        /**
         * 通过openId和accessToken获取当前用户的基本信息
         * 
         * @param openId
         * @param accessToken
         * @return
         */
        public static JSONObject getUserInfo2(String openId, String accessToken) {
            String url = user_Info_Url.replace("OPENID", openId).replace("ACCESS_TOKEN", accessToken);
            JSONObject jsonObject = httpRequest(url, "POST", null);
            log.info("WeChatUtil getUserInfo=" + jsonObject);
            return jsonObject;
        }
    
        /**
         * 通过appId和appSecretId获取accessToken
         * 
         * @date 2018年3月6日
         * @return
         */
        public static String getAccessToken() {
            String url = access_Token_Url.replace("WEIXIN_APPID", WEIXIN_APPID).replace("WEIXIN_APPSECRET",
                    WEIXIN_APPSECRET);
            JSONObject jsonObject = httpRequest(url, "GET", null);
            log.info("WeChatUtil getAccessToken=" + jsonObject);
            return jsonObject.getString("access_token");
        }
    
        /**
         * 获取用户code值
         */
        public static String getCodeUrl(String redirect_uri) {
            String url = get_code_url.replace("REDIRECT_URI", redirect_uri);
            return url;
    
        }
    
        /**
         * 刷新token有效期
         * 
         * @date 2018年3月6日
         * @return
         */
        public static String refreshToken(String REFRESH_TOKEN) {
            String url = refresh_token_Url.replace("REFRESH_TOKEN", REFRESH_TOKEN);
            JSONObject jsonObject = httpRequest(url, "GET", null);
            log.info("WeChatUtil refreshToken=" + jsonObject);
            return jsonObject.getString("access_token");
        }
    
        /**
         * 获取jsticket
         * 
         * @date 2018年3月6日
         * @return
         */
        public static String getJsTicket(String accessToken) {
            String url = get_jsticket.replace("ACCESS_TOKEN", accessToken);
            JSONObject jsonObject = httpRequest(url, "GET", null);
            return jsonObject.getString("ticket");
        }
    
        /**
         * URL编码(utf-8)
         * 
         * @param source
         * @return
         */
        public static String urlEncodeUTF8(String source) {
            String result = source;
            try {
                result = java.net.URLEncoder.encode(source, "utf-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
                log.error("urlEncodeUTF8出现异常!
    " + e.getMessage());
            }
            return result;
        }
    
        public static String getWEIXIN_APPID() {
            return WEIXIN_APPID;
        }
    
        public static void setWEIXIN_APPID(String wEIXIN_APPID) {
            WEIXIN_APPID = wEIXIN_APPID;
        }
    
        public static String getWEIXIN_APPSECRET() {
            return WEIXIN_APPSECRET;
        }
    
        public static void setWEIXIN_APPSECRET(String wEIXIN_APPSECRET) {
            WEIXIN_APPSECRET = wEIXIN_APPSECRET;
        }
    
        /**
         * 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 JSONObject httpRequest(String requestUrl, String requestMethod, String outputStr) {
            JSONObject jsonObject = null;
            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();
                jsonObject = JSONObject.fromObject(buffer.toString());
            } catch (ConnectException ce) {
                ce.printStackTrace();
                log.error("Weixin server connection timed out.");
            } catch (Exception e) {
                e.printStackTrace();
                log.error("https request error:{}", e);
            }
            return jsonObject;
        }
    
        public static Map<String, String> sign(String jsapi_ticket, String url) {
            Map<String, String> ret = new HashMap<String, String>();
            String nonce_str = create_nonce_str();
            String timestamp = create_timestamp();
            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;
            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) {
    
            // 注意 URL 一定要动态获取,不能 hardcode
            String url = "http://gwchsk.imwork.net/wechat/order/test.html";
            String accessToken = getAccessToken();
            String jsTicket = getJsTicket(accessToken);
            Map<String, String> ret = sign(jsTicket,url);
            for (Map.Entry entry : ret.entrySet()) {
                System.out.println(entry.getKey() + "=" + entry.getValue());
            }
        }
    
    }
    

    上面就是一套完整的微信网页推送流程,有什么不懂就联系我。


    鼓励作者写出更好的技术文档,就请我喝一瓶哇哈哈哈哈哈哈哈。。
    微信:

    支付宝:


    感谢一路支持我的人。。。。。
    Love me and hold me
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    EMAIL:69673804@qq.com
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  • 原文地址:https://www.cnblogs.com/kingyifan/p/11721455.html
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