微信公眾平臺開發之天氣預報功能

2020-03-22 20:19:42

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最近有項目需求給微信公眾號上增加了天氣預報功能,使用百度提供的車聯網API V3.0中的天氣查詢功能實現.先上一張最終效果圖:項目需求：有連接好的微信平臺,有百度注冊帳號,需要在百度LBS開放云平臺,添加應用,獲取AK代碼，PHP代碼編輯器,如EditPlus等下面詳細介紹下開發步驟：第一步：準備工作
登錄微信公眾平臺,檢查服務器配置是否已啟用,URL(服務器地址) 是否已配置Token(令牌),與自己寫的微信入口文件中的Token(令牌一致),如下圖:然后點擊提交,只至網頁上提示綠色背景的提交成功信息,則完成本步驟的操作
第二步：微信天氣預報數據源準備
用已注冊好的百度帳號,登錄百度LBS云平臺,添加一個應用,獲取訪問應用AK，及了解車聯API V3.0,天氣查詢功能相應的接口說明文件,以按需調用需要的天氣信息.第三步：微信公眾平臺，接口文件編寫 jiekou.php 無憂電腦技巧網微信公眾號功能源碼 CopyRight 2015 All Rights Reserveddefine("TOKEN", "weixin2015");$wechatObj = new wechatCallbackapiTest();if (!isset($_GET['echostr'])) { $wechatObj- responseMsg();}else{ $wechatObj- valid();html' target='_blank'>class wechatCallbackapiTest //驗證簽名 public function valid() $echoStr = $_GET["echostr"]; $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = TOKEN; $tmpArr = array($token, $timestamp, $nonce); sort($tmpArr); $tmpStr = implode($tmpArr); $tmpStr = sha1($tmpStr); if($tmpStr == $signature){ echo $echoStr; exit; public function responseMsg() // $postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; $postStr = file_get_contents("php://input"); if (!empty($postStr)){ $this- logger("R ".$postStr); $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); $RX_TYPE = trim($postObj- MsgType); $result = ""; switch ($RX_TYPE) case "event": $result = $this- receiveEvent($postObj); break; case "text": $result = $this- receiveText($postObj); break; $this- logger("T ".$result); echo $result; }else { echo ""; exit; private function receiveEvent($object) switch ($object- Event) case "subscribe": $content = "歡迎關注無憂電腦技巧網 "; break; $result = $this- transmitText($object, $content); return $result; private function receiveText($object) $keyword = trim($object- Content); //獲得用戶輸入的信息 //判斷天氣 if(!empty( $keyword )){ //!empty 函數,判斷 $keyword獲得的值是否為空 $city = mb_substr($keyword, 0, 2, 'utf-8'); //取用戶輸入內容前兩個字符,如"黃岡天氣" 最終取值"黃岡" include("weather.php"); //調用天氣接口文件 $content = getWeatherInfo($city); //執行天氣接口文件中的 getWeatherInfo方法.查詢黃岡天氣. } else{ $content = date("Y-m-d H:i:s",time())."/n技術支持無憂電腦技巧網/nwww.51pcjq.com"; //發送其它內容默認回復的內容. if(is_array($content)){ if (isset($content[0]['PicUrl'])){ $result = $this- transmitNews($object, $content); }else if (isset($content['MusicUrl'])){ $result = $this- transmitMusic($object, $content); }else{ $result = $this- transmitText($object, $content); return $result; private function transmitText($object, $content) if (!isset($content) || empty($content)){ return ""; $textTpl = " xml ToUserName ![CDATA[%s]] /ToUserName FromUserName ![CDATA[%s]] /FromUserName CreateTime %s /CreateTime MsgType ![CDATA[text]] /MsgType Content ![CDATA[%s]] /Content /xml $result = sprintf($textTpl, $object- FromUserName, $object- ToUserName, time(), $content); return $result; private function transmitNews($object, $newsArray) if(!is_array($newsArray)){ return ""; $itemTpl = " item Title ![CDATA[%s]] /Title Description ![CDATA[%s]] /Description PicUrl ![CDATA[%s]] /PicUrl Url ![CDATA[%s]] /Url /item $item_str = ""; foreach ($newsArray as $item){ $item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']); $newsTpl = " xml ToUserName ![CDATA[%s]] /ToUserName FromUserName ![CDATA[%s]] /FromUserName CreateTime %s /CreateTime MsgType ![CDATA[news]] /MsgType Content ![CDATA[]] /Content ArticleCount %s /ArticleCount Articles $item_str /Articles /xml $result = sprintf($newsTpl, $object- FromUserName, $object- ToUserName, time(), count($newsArray)); return $result; private function logger($log_content)}第四步:使用百度車聯API V3.0接口,及訪問應用AK碼,編號微信天氣接口源碼:weatger.php
function getWeatherInfo($cityName){ if ($cityName == "" || (strstr($cityName, "+"))){ return "發送天氣+城市，例如'天氣深圳'"; }//用戶查詢天氣,回復關鍵詞規則 $url = "http://api.map.baidu.com/telematics/v3/weather location=".urlencode($cityName)."&output=json&ak=自已申請的百度車聯API AK代碼";//構建通過百度車聯API V3.0查詢天氣url鏈接 $ch = curl_init();//初始化會話 curl_setopt($ch, CURLOPT_URL, $url);//設置會話參數 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//設置會話參數 $output = curl_exec($ch);//執行curl會話 curl_close($ch);//關閉curl會話 $result = json_decode($output, true);//函數json_decode() 的功能時將json數據格式轉換為數組。 if ($result["error"] != 0){ return $result["status"]; } $curHour = (int)date('H',time()); $weather = $result["results"][0];//按照微信公眾號開發文檔,組建設多圖文回復信息 $weatherArray[] = array("Title" = $weather['currentCity']."當前天氣:"."溫度:".$weather['weather_data'][0]['temperature'].",".$weather['weather_data'][0]['weather'].","."風力:".$weather['weather_data'][0]['wind'].".", "Description" = "", "PicUrl" = "http://weixin.51pcjq.com/img/weather_bg.jpg", "Url" = for ($i = 0; $i count($weather["weather_data"]); $i++) { $weatherArray[] = array("Title"= $weather["weather_data"][$i]["date"]."/n". $weather["weather_data"][$i]["weather"]." ". $weather["weather_data"][$i]["wind"]." ". $weather["weather_data"][$i]["temperature"]."", "Description"= "", "PicUrl"= (($curHour = 6) && ($curHour 18)) $weather["weather_data"][$i]["dayPictureUrl"]:$weather["weather_data"][$i]["nightPictureUrl"], "Url"= return $weatherArray;} 注意事項微信公眾平臺 TOKEN 與自己編寫的微信接口文件中的 TOKEN 的值必須保持一致編寫php代碼,需使用專業的php編輯工具,如EditPlus,Dreamweaver等上述天氣接口文件中,百度車聯api AK代碼已換成 "自已申請的百度車聯API AK代碼:請申請好后,自行填入如要不明白的地方,可以關注我的百度空間.留言和我聯系!微信天氣預報開發最新代碼： meta http-equiv="Content-Type" content="text/html; charset=utf" / header("Content-Type:text/html;charset=UTF-"); date_default_timezone_set("PRC"); * 最開始用的是微信提供的demo老是不成功，用了這個網上下載的才成功 //define your token define("TOKEN", "djjc"); $wechatObj = new wechatCallbackapiTest(); //微信接入操作，成功接入了直接注釋了就行了 $wechatObj- responseMsg(); //$wechatObj- valid(); class wechatCallbackapiTest /*public function valid() $echoStr = $_GET["echostr"]; //valid signature , option if($this- checkSignature()){ echo $echoStr; exit; public function responseMsg() //get post data, May be due to the different environments $postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; //extract post data if (!empty($postStr)){ $postObj = simplexml_load_string($postStr, ‘SimpleXMLElement‘, LIBXML_NOCDATA); $RX_TYPE = trim($postObj- MsgType); switch($RX_TYPE) case "text": $resultStr = $this- handleText($postObj); break; case "event": $resultStr = $this- handleEvent($postObj); break; default: $resultStr = "Unknow msg type: ".$RX_TYPE; break; echo $resultStr; }else { echo ""; exit; //測試文字回復 public function handleText($postObj) $fromUsername = $postObj- FromUserName; $toUsername = $postObj- ToUserName; $keyword = trim($postObj- Content); $time = time(); $textTpl = " xml ToUserName ![CDATA[%s]] /ToUserName FromUserName ![CDATA[%s]] /FromUserName CreateTime %s /CreateTime MsgType ![CDATA[%s]] /MsgType Content ![CDATA[%s]] /Content FuncFlag /FuncFlag /xml if(!empty( $keyword )) $msgType = "text"; switch($keyword){ case "你好": $contentStr = "你好!"; break; case "你叫什么名字": $contentStr = "我是頂尖機器人"; break;//判斷是否為天氣 case $keywords+"天氣"; $str = mb_substr($keyword,-,,"UTF-"); $str_key = mb_substr($keyword,,-,"UTF-"); if($str=="天氣"){ $data = $this- weather($str_key)- showapi_res_body; $data=‘[今天白天]‘.$data- f- day_weather."/n"; $data=‘[今天夜間]‘.$data- f- night_weather."/n"; $data=‘[明天白天]‘.$data- f- day_weather."/n"; $data=‘[明天夜間]‘.$data- f- night_weather."/n"; $contentStr = $data.$data.$data.$data; break; default: $contentStr = "聽不懂您在講什么"; break; $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; }else{ echo "Input something..."; public function handleEvent($object) $contentStr = ""; switch ($object- Event) case "subscribe": $contentStr = "感謝您關注頂尖教程網，在這里您將得到海量免費學習資源！"; break; default : $contentStr = "Unknow Event: ".$object- Event; break; $resultStr = $this- responseText($object, $contentStr); return $resultStr; public function responseText($object, $content) $textTpl = " xml ToUserName ![CDATA[%s]] /ToUserName FromUserName ![CDATA[%s]] /FromUserName CreateTime %s /CreateTime MsgType ![CDATA[text]] /MsgType Content ![CDATA[%s]] /Content FuncFlag /FuncFlag /xml $resultStr = sprintf($textTpl, $object- FromUserName, $object- ToUserName, time(), $content, $flag); return $resultStr; private function checkSignature() $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = TOKEN; $tmpArr = array($token, $timestamp, $nonce); sort($tmpArr); $tmpStr = implode( $tmpArr ); $tmpStr = sha( $tmpStr ); if( $tmpStr == $signature ){ return true; }else{ return false; //天氣預報此處漢字需要處理，想了很多辦法才沒亂碼 private function weather($k){ $n=urlencode($k); $showapi_appid = ‘‘; //去相關網站申請就行 $showapi_sign = ‘deafcacefdea‘; $showapi_timestamp = date(‘YmdHis‘); $areaid=‘‘; $paramArr = ‘‘; $needHourData=‘‘; $url = iconv(‘gbk‘,‘utf-‘,‘http://route.showapi.com/- ‘.‘area=‘.$n.‘&areaid=&needHourData=&needIndex=&needMoreDay=&showapi_appid=‘.$showapi_appid.‘&showapi_timestamp=‘.$showapi_timestamp.‘&showapi_sign=‘.$showapi_sign); $result = file_get_contents($url); $result = json_decode($result); return $result; PHP教程

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