最近有项目需求给微信公众号上增加了天气预报功能,使用百度提供的车联网api v3.0中的天气查询功能实现.先上一张最终效果图:
项目需求：有连接好的微信平台,有百度注册帐号,需要在百度lbs开放云平台,添加应用,获取ak代码，php代码编辑器,如editplus等
下面详细介绍下开发步骤：
第一步：准备工作
登录微信公众平台,检查服务器配置是否已启用,url(服务器地址) 是否已配置token(令牌),与自己写的微信入口文件中的token(令牌一致),如下图:然后点击提交,只至网页上提示绿色背景的提交成功信息,则完成本步骤的操作
第二步：微信天气预报数据源准备
用已注册好的百度帐号,登录百度lbs云平台,添加一个应用,获取访问应用ak，及了解车联api v3.0,天气查询功能相应的接口说明文件,以按需调用需要的天气信息.
第三步：微信公众平台，接口文件编写 jiekou.php
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<?php/* 无忧电脑技巧网 微信公众号功能源码 copyright 2015 all rights reserved*/define("token", "weixin2015");$wechatobj = new wechatcallbackapitest();if (!isset($_get['echostr'])) { $wechatobj->responsemsg();}else{ $wechatobj->valid();}class wechatcallbackapitest{ //验证签名 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 = "欢迎关注无忧电脑技巧网 "; break; } $result = $this->transmittext($object, $content); return $result; } private function receivetext($object) { $keyword = trim($object->content); //获得用户输入的信息 //判断天气 if(!empty( $keyword )){ //!empty 函数,判断 $keyword获得的值是否为空 $city = mb_substr($keyword, 0, 2, 'utf-8'); //取用户输入内容前两个字符,如"黄冈天气" 最终取值"黄冈" include("weather.php"); //调用天气接口文件 $content = getweatherinfo($city); //执行天气接口文件中的 getweatherinfo方法.查询 黄冈天气. } else{ $content = date("y-m-d h:i:s",time())."\n技术支持 无忧电脑技巧网\nwww.51pcjq.com"; //发送其它内容默认回复的内容. } if(is_array($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:使用百度车联api v3.0接口,及访问应用ak码,编号微信天气接口源码:
weatger.php
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<?phpfunction getweatherinfo($cityname){ if ($cityname == "" || (strstr($cityname, "+"))){ return "发送天气+城市，例如'天气深圳'"; }//用户查询天气,回复关键词 规则 $url = "http://api.map.baidu.com/telematics/v3/weather?location=".urlencode($cityname)."&output=json&ak=自已申请的百度车联api ak代码";//构建通过百度车联api v3.0查询天气url链接 $ch = curl_init();//初始化会话 curl_setopt($ch, curlopt_url, $url);//设置会话参数 curl_setopt($ch, curlopt_returntransfer, 1);//设置会话参数 $output = curl_exec($ch);//执行curl会话 curl_close($ch);//关闭curl会话 $result = json_decode($output, true);//函数json_decode() 的功能时将json数据格式转换为数组。 if ($result["error"] != 0){ return $result["status"]; } $curhour = (int)date('h',time()); $weather = $result["results"][0];//按照微信公众号开发文档,组建设多图文回复信息 $weatherarray[] = array("title" => $weather['currentcity']."当前天气:"."温度:".$weather['weather_data'][0]['temperature'].",".$weather['weather_data'][0]['weather'].","."风力:".$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;}?> |
注意事项
微信公众平台 token 与自己编写的微信接口文件中的 token 的值必须保持一致
编写php代码,需使用专业的php编辑工具,如editplus,dreamweaver等
上述天气接口文件中,百度车联api ak代码已换成 "自已申请的百度车联api ak代码:请申请好后,自行填入
如要不明白的地方,可以关注我的百度空间.留言和我联系!
微信天气预报开发最新代码：
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<meta http-equiv="content-type" content="text/html; charset=utf" /> <?php header("content-type:text/html;charset=utf-"); date_default_timezone_set("prc"); /** * 最开始用的是微信提供的demo老是不成功，用了这个网上下载的才成功 */ //define your token define("token", "djjc"); $wechatobj = new wechatcallbackapitest(); //微信接入操作，成功接入了直接注释了就行了 $wechatobj->responsemsg(); //$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 $resultstr; }else { echo ""; exit; } } //测试文字回复 public function handletext($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 = "我是顶尖机器人"; break;//判断是否为天气 case $keywords+"天气"; $str = mb_substr($keyword,-,,"utf-"); $str_key = mb_substr($keyword,,-,"utf-"); if($str=="天气"){ $data = $this->weather($str_key)->showapi_res_body; $data=‘[今天白天]‘.$data->f->day_weather."\n"; $data=‘[今天夜间]‘.$data->f->night_weather."\n"; $data=‘[明天白天]‘.$data->f->day_weather."\n"; $data=‘[明天夜间]‘.$data->f->night_weather."\n"; $contentstr = $data.$data.$data.$data; } break; default: $contentstr = "听不懂您在讲什么"; 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 = "感谢您关注顶尖教程网，在这里您将得到海量免费学习资源！"; 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 == $signature ){ return true; }else{ return false; } } //天气预报 此处汉字需要处理，想了很多办法才没乱码 private function weather($k){ $n=urlencode($k); $showapi_appid = ‘‘; //去相关网站申请就行 $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; } } ?> |
