原創(chuàng)聲明：本文轉(zhuǎn)來(lái)源本人另一博客【http://blog.csdn.net/liaohaojian/article/details/70175835】絕非他人處轉(zhuǎn)載

從接觸公眾號(hào)到現(xiàn)在，開發(fā)維護(hù)了2個(gè)公眾號(hào)，開發(fā)過(guò)程中遇到很多問(wèn)題，現(xiàn)在把部分模塊功能在這備案一下，做個(gè)總結(jié)也希望能給其他人幫助

工欲善其事，必先利其器，先看看開發(fā)公眾號(hào)需要準(zhǔn)備或了解什么

?web開發(fā)工具：官方提供的開發(fā)工具，使用自己的微信號(hào)來(lái)調(diào)試微信網(wǎng)頁(yè)授權(quán)、調(diào)試、檢驗(yàn)頁(yè)面的 JS-SDK 相關(guān)功能與權(quán)限，模擬大部分 SDK 的輸入和輸出。下載地址：web開發(fā)工具下載

開發(fā)文檔：https://mp.weixin.qq.com/wiki

登錄微信測(cè)試公眾號(hào)，獲取公眾號(hào)的appID、appsecret，登錄地址：http://mp.weixin.qq.com/debug/cgi-bin/sandbox?t=sandbox/login?（一般測(cè)試開發(fā)階段，都不拿正式公眾號(hào)測(cè)試，因?yàn)榇嬖陲L(fēng)險(xiǎn)并且你調(diào)試時(shí)不用擔(dān)心影響到正式公眾號(hào)的正常使用，而且有些接口在正式公眾號(hào)上比較嚴(yán)格，而在測(cè)試公眾號(hào)上可以放開，如模板信息）

? ? 下面進(jìn)入正題，實(shí)現(xiàn)微信網(wǎng)頁(yè)授權(quán)，獲取微信信息，主要用于以微信帳號(hào)作為用戶登錄，如果你只是需要綁定微信，就可以不用授權(quán)，直接請(qǐng)求獲取微信OpenId（對(duì)當(dāng)前公眾號(hào)唯一），進(jìn)行用戶綁定（在下面代碼時(shí)是寫明如何實(shí)現(xiàn)），該功能可在開發(fā)文檔：微信網(wǎng)頁(yè)開發(fā)-》微信網(wǎng)頁(yè)授權(quán)里查看詳細(xì)信息，下面正式開始。

1.填寫授權(quán)回調(diào)頁(yè)面域名

? ?進(jìn)入測(cè)試公眾號(hào)，在體驗(yàn)接口權(quán)限表中找到網(wǎng)頁(yè)帳號(hào)，右側(cè)添加自己的域名，測(cè)試公眾號(hào)可填寫本地IP，如你是正式公眾號(hào)只能填寫自己的域名，如果未填寫，當(dāng)進(jìn)行接口調(diào)用時(shí)，會(huì)提示：redirect_uri參數(shù)錯(cuò)誤！如果還有其他不了解的配置，可以在開發(fā)文檔里查看詳信息，

2.代碼展示

? ? 1).調(diào)用微信接口返回的參數(shù)都是JSON格式，封裝個(gè)Http請(qǐng)求方法

public?class?WeixinUtil?{/***?發(fā)起https請(qǐng)求并獲取結(jié)果*?@param?requestUrl?請(qǐng)求地址*?@param?requestMethod?請(qǐng)求方式（GET、POST）*?@param?outputStr?提交的數(shù)據(jù)*?@return?JSONObject(通過(guò)JSONObject.get(key)的方式獲取json對(duì)象的屬性值)*/public?static?JSONObject?httpRequest(String?requestUrl,?String?requestMethod,?String?outputStr)?{JSONObject?jsonObject?=?null;StringBuffer?buffer?=?new?StringBuffer();try?{//?創(chuàng)建SSLContext對(duì)象，并使用我們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());//?從上述SSLContext對(duì)象中得到SSLSocketFactory對(duì)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);//?設(shè)置請(qǐng)求方式（GET/POST）httpUrlConn.setRequestMethod(requestMethod);if?("GET".equalsIgnoreCase(requestMethod))httpUrlConn.connect();//?當(dāng)有數(shù)據(jù)需要提交時(shí)if?(null?!=?outputStr)?{OutputStream?outputStream?=?httpUrlConn.getOutputStream();//?注意編碼格式，防止中文亂碼outputStream.write(outputStr.getBytes("UTF-8"));outputStream.close();}//?將返回的輸入流轉(zhuǎn)換成字符串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();//?釋放資源inputStream.close();inputStream?=?null;httpUrlConn.disconnect();jsonObject?=?JSONObject.fromObject(buffer.toString());}?catch?(ConnectException?ce)?{log.error("Weixin?server?connection?timed?out.");}?catch?(Exception?e)?{log.error("https?request?error:{}",?e);}return?jsonObject;} }

? ? 2).下面展示訪問(wèn)個(gè)人中心時(shí)，進(jìn)行用戶授權(quán)

/***?個(gè)人中心*?@param?request*?@param?response*?@return*/ @RequestMapping("/gotoPeopleIndex") public?String?gotoPeopleIndex(HttpServletRequest?request,HttpServletResponse?response){//判斷是否授權(quán)過(guò)，授權(quán)通過(guò)時(shí)，會(huì)保存session“WeixinUserInfo”，這樣下次訪問(wèn)時(shí)，如果WeixinUserInfo存在，說(shuō)明已經(jīng)授權(quán)過(guò)，用戶信息已經(jīng)存在WeixinUserInfo?WeixinUserInfo?=??(WeixinUserInfo)?session.getAttribute("WeixinUserInfo");if(WeixinUserInfo==null){//沒(méi)有授權(quán)過(guò)，跳轉(zhuǎn)授權(quán)頁(yè)面，如果你不需要授權(quán)，則scope為snsapi_base，這是不會(huì)彈出授權(quán)頁(yè)面String?url??=?"https://open.weixin.qq.com/connect/oauth2/authorize?appid="+TimedTask.appid+"&redirect_uri="+TimedTask.websiteAndProject+"/weixinF/getOpenInfo/gotoPeopleIndex&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";return?"redirect:"+url;}else{return?"weixin/customer/userInfo";} } /***?微信網(wǎng)頁(yè)授權(quán)獲得微信詳情*?@param?code*?@param?state*?@param?view?授權(quán)后調(diào)整的視圖*?@param?request*?@param?appid?公眾號(hào)appid*?@param?appsecret?公眾號(hào)appsecret*?@param?websiteAndProject??請(qǐng)求地址跟工程名，如我當(dāng)前的為http://192.168.2.113/seafood*?@param?response*?@throws?ServletException*?@throws?IOException*/ @RequestMapping("/getOpenInfo/{view}") public?void?getOpenInfo(@RequestParam("code")?String?code,@RequestParam("state")?String?state,@PathVariable("view")?String?view,HttpServletRequest?request,HttpServletResponse?response)?throws?ServletException,?IOException{//?用戶同意授權(quán)if?(!"authdeny".equals(code))?{//獲取OpenIdOpenIdResult?open?=?WeixinUtil.getOpenId(request,?code,?TimedTask.appid,?TimedTask.appsecret);//檢驗(yàn)授權(quán)憑證（access_token）是否有效int?result?=?WeixinUtil.checkAccessToken(open.getAccess_token(),?open.getOpenid());if(0?!=?result){open?=?WeixinUtil.getNewAccess_Token(open,open.getRefresh_token(),TimedTask.appid);}//?網(wǎng)頁(yè)授權(quán)接口訪問(wèn)憑證String?accessToken?=?open.getAccess_token();String?openId?=?open.getOpenid();//獲取微信用戶詳細(xì)信息，如果你不需要授權(quán)，可跳過(guò)該步驟，直接以微信的OpenId，查找是否已經(jīng)綁定，沒(méi)有跳轉(zhuǎn)到綁定界面WeixinUserInfo?user?=?WeixinUtil.getWeixinUserInfo(accessToken,?openId);Customer?customer?=?weixinFirstServer.getCustomerDetailByOpenId(user.getOpenId());if(customer!=null){if(customer.getAccountStatus()==2){response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(TimedTask.websiteAndProject+"/weixin/customer/noAuthority.jsp");}?catch?(IOException?e)?{e.printStackTrace();}return;}customer.setHeadPhoto(user.getHeadImgUrl());}else{Customer?newuser?=?new?Customer();newuser.setCustomerWeixinId(openId);newuser.setCustomerWNickname(user.getNickname());newuser.setSex(user.getSex());//綁定result?=?weixinFirstServer.addCustomerInfo(newuser);if(result<=0){response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(TimedTask.websiteAndProject+"/weixin/customer/error.jsp");}?catch?(IOException?e)?{e.printStackTrace();}}else{customer?=?weixinFirstServer.getCustomerDetailByOpenId(user.getOpenId());if(customer.getAccountStatus()==2){response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(TimedTask.websiteAndProject+"/weixin/customer/noAuthority.jsp");}?catch?(IOException?e)?{e.printStackTrace();}return;}}}session.setAttribute("customerInfo",?customer);session.setAttribute("WeixinUserInfo",?user);request.setAttribute("state",?state);response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(TimedTask.websiteAndProject+"/weixinF/"+view);}?catch?(IOException?e)?{e.printStackTrace();}}else{response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(TimedTask.websiteAndProject+"/weixin/customer/error.jsp");}?catch?(IOException?e)?{e.printStackTrace();}} }

? ? 微信工具類代碼：

public?class?WeixinUtil?{public?final?static?String?getOpen_id_url?=?"https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code";/***?檢驗(yàn)授權(quán)憑證（access_token）是否有效*?@param?accessToken?憑證*?@param?openid?id*?@return*/public?static?int?checkAccessToken(String?accessToken,?String?openid)?{String?requestUrl?=?"https://api.weixin.qq.com/sns/auth?access_token="+accessToken+"&openid="+openid;JSONObject?jsonObject?=?httpRequest(requestUrl,?"GET",?null);int?result?=?1;//?如果請(qǐng)求成功if?(null?!=?jsonObject)?{try?{result?=?jsonObject.getInt("errcode");}?catch?(JSONException?e)?{accessToken?=?null;//?獲取token失敗log.error("獲取token失敗?errcode:{}?errmsg:{}",?jsonObject.getInt("errcode"),?jsonObject.getString("errmsg"));}}return?result;}/***?用戶授權(quán)，使用refresh_token刷新access_token*?@return*/public?static?OpenIdResult?getNewAccess_Token(OpenIdResult?open,String?refresh_token,String?openId)?{String?requestUrl?=?getNewAccess_token.replace("REFRESH_TOKEN",?refresh_token).replace("APPID",?openId);JSONObject?jsonObject?=?httpRequest(requestUrl,?"GET",?null);//?如果請(qǐng)求成功if?(null?!=?jsonObject)?{try?{open.setAccess_token(jsonObject.getString("access_token"));}?catch?(JSONException?e)?{//?獲取token失敗log.error("獲取token失敗?errcode:{}?errmsg:{}",?jsonObject.getInt("errcode"),?jsonObject.getString("errmsg"));}}return?open;}/***?獲得用戶基本信息*?@param?request?*?@param?code*?@param?appid*?@param?appsecret*?@return*/public?static?OpenIdResult?getOpenId(HttpServletRequest?request,?String?code,String?appid,?String?appsecret)?{String?requestURI?=?request.getRequestURI();String?param?=?request.getQueryString();if(param!=null){requestURI?=?requestURI+"?"+param;}String?url?=?getOpen_id_url.replace("APPID",appid).replace("SECRET",appsecret).replace("CODE",code);JSONObject?jsonObject?=?httpRequest(url,?"POST",?null);OpenIdResult?result?=?new?OpenIdResult();if?(null?!=?jsonObject)?{Object?obj?=?jsonObject.get("errcode");if?(obj?==?null)?{result.setAccess_token(jsonObject.getString("access_token"));result.setExpires_in(jsonObject.getString("expires_in"));result.setOpenid(jsonObject.getString("openid"));result.setRefresh_token(jsonObject.getString("refresh_token"));result.setScope(jsonObject.getString("scope"));}else{System.out.println("獲取openId回執(zhí)："+jsonObject.toString()+"訪問(wèn)路徑："+requestURI);log.error("訪問(wèn)路徑:"+requestURI);log.error("獲取openId失敗?errcode:{}?errmsg:{}",?jsonObject.getInt("errcode"),?jsonObject.getString("errmsg"));}}return?result;}/***?通過(guò)網(wǎng)頁(yè)授權(quán)獲取用戶信息*?@param?accessToken?網(wǎng)頁(yè)授權(quán)接口調(diào)用憑證*?@param?openId?用戶標(biāo)識(shí)*?@return?WeixinUserInfo*/public?static?WeixinUserInfo?getWeixinUserInfo(String?accessToken,?String?openId)?{WeixinUserInfo?user?=?null;//?拼接請(qǐng)求地址String?requestUrl?=?"https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID";requestUrl?=?requestUrl.replace("ACCESS_TOKEN",?accessToken).replace("OPENID",?openId);//?通過(guò)網(wǎng)頁(yè)授權(quán)獲取用戶信息JSONObject?jsonObject?=?httpRequest(requestUrl,?"GET",?null);if?(null?!=?jsonObject)?{try?{user?=?new?WeixinUserInfo();//?用戶的標(biāo)識(shí)user.setOpenId(jsonObject.getString("openid"));//?昵稱user.setNickname(jsonObject.getString("nickname"));//?性別（1是男性，2是女性，0是未知）user.setSex(jsonObject.getInt("sex"));//?用戶所在國(guó)家user.setCountry(jsonObject.getString("country"));//?用戶所在省份user.setProvince(jsonObject.getString("province"));//?用戶所在城市user.setCity(jsonObject.getString("city"));//?用戶頭像user.setHeadImgUrl(jsonObject.getString("headimgurl"));//?用戶特權(quán)信息user.setPrivilegeList(JSONArray.toList(jsonObject.getJSONArray("privilege"),?List.class));}?catch?(Exception?e)?{user?=?null;int?errorCode?=?jsonObject.getInt("errcode");String?errorMsg?=?jsonObject.getString("errmsg");log.error("獲取用戶信息失敗?errcode:{}?errmsg:{}，reqUrl{}",?errorCode,?errorMsg);}}return?user;} }

? ? 下面展示，當(dāng)用戶session失效時(shí)，自動(dòng)登錄的代碼，這時(shí)是不需要授權(quán)的

@RequestMapping("/gotoGoodsView") public?String?gotoGoodsView(@RequestParam(value="longitude",defaultValue="",required=false)?String?longitude,@RequestParam(value="latitude",defaultValue="",required=false)?String?latitude){String?param?=?request.getQueryString();String?url?=?request.getServletPath();if(param!=null){url?=?url+"?"+param.replaceAll("&","-");//如果不把&替換成別的，當(dāng)重新登錄成功后調(diào)整會(huì)參數(shù)丟失}Customer?customerInfo?=?(Customer)?session.getAttribute("customerInfo");if(customerInfo==null){//session失效，跳轉(zhuǎn)到獲取微信詳情頁(yè)面（授權(quán)）return?"redirect:/weixinF/getCode?view="+TimedTask.websiteAndProject+"/weixinF/autoLogin&view2="+TimedTask.websiteAndProject+url;}return?"/weixin/customer/goodsList"; } @RequestMapping("/getCode") public?void?getCode(HttpServletResponse?response){String?view??=?request.getParameter("view");//獲取openId的路徑String?view2??=?request.getParameter("view2");//獲取openId成功后跳轉(zhuǎn)的路徑String?redirect_url?=?"";try?{redirect_url?=?URLEncoder.encode(view,"UTF-8");if(view2!=null?&&?!"".equals(view2)){view2?=?view2.replaceAll("-","&");redirect_url?=?redirect_url?+"?redirect_url="+?URLEncoder.encode(URLEncoder.encode(view2,"UTF-8"),"UTF-8");}}?catch?(UnsupportedEncodingException?e1)?{e1.printStackTrace();}String?url?=?WeixinUtil.getCode_url.replace("APPID",TimedTask.appid).replace("REDIRECT_URI",redirect_url);response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(url);}?catch?(IOException?e)?{e.printStackTrace();} } /***?自動(dòng)登錄并跳轉(zhuǎn)*?@param?code*?@param?appid?公眾號(hào)appid*?@param?appsecret?公眾號(hào)appsecret*?@param?websiteAndProject??請(qǐng)求地址跟工程名，如我當(dāng)前的為http://192.168.2.113/seafood*?@param?url?自動(dòng)登錄后跳轉(zhuǎn)路徑*?@return*/ @RequestMapping("/autoLogin") public?String?autoLogin(HttpServletResponse?response,@RequestParam(value="code",defaultValue="")?String?code,@RequestParam(value="redirect_url",defaultValue="")?String?url){OpenIdResult?open?=?WeixinUtil.getOpenId(request,code,TimedTask.appid,TimedTask.appsecret);//根據(jù)Code獲取OpenId//根據(jù)OpenId查找是否有該客戶，沒(méi)有進(jìn)行綁定Customer?customerInfo?=?weixinFirstServer.getCustomerDetailByOpenId(open.getOpenid());if(customerInfo!=null){if(customerInfo.getAccountStatus()==2){//用戶賬戶是否正常return?"redirect:"+TimedTask.websiteAndProject+"/weixin/customer/noAuthority.jsp";}session.setAttribute("customerInfo",?customerInfo);//把用戶信息存在session中response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(url);}?catch?(IOException?e)?{e.printStackTrace();}return?null;}else{url=?url.replaceAll("&","-");url?=?url.replace(TimedTask.websiteAndProject,"");String?redirectUrl??=?"https://open.weixin.qq.com/connect/oauth2/authorize?appid="+TimedTask.appid+"&redirect_uri="+TimedTask.websiteAndProject+"/weixinF/getOpenInfoRedirectAction?actionName="+url+"&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";response.setContentType("text/html;?charset=UTF-8");try?{response.sendRedirect(redirectUrl);}?catch?(IOException?e)?{e.printStackTrace();}return?null;} }

? ? 到此，微信網(wǎng)頁(yè)授權(quán)認(rèn)證，與session失效自動(dòng)登錄已經(jīng)完成，如果有問(wèn)題歡迎在評(píng)論區(qū)指出

轉(zhuǎn)載于:https://blog.51cto.com/banshanxianren/1916240

總結(jié)

以上是生活随笔為你收集整理的微信公众号开发之网页授权认证获取用户的详细信息，实现自动登陆的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。