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
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 = %s; $result = sprintf($texttpl, $object->fromusername, $object->tousername, time(), $content); return $result; } private function transmitnews($object, $newsarray) { if(!is_array($newsarray)){ return ; } $itemtpl = ; $item_str = ; foreach ($newsarray as $item){ $item_str .= sprintf($itemtpl, $item['title'], $item['description'], $item['picurl'], $item['url']); } $newstpl = %s%s$item_str; $result = sprintf($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
$weather['currentcity'].当前天气:.温度:.$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 $weather[weather_data][$i][date].\n. $weather[weather_data][$i][weather]. . $weather[weather_data][$i][wind]. . $weather[weather_data][$i][temperature]., description=>, picurl=>(($curhour >= 6) && ($curhour ); } return $weatherarray;}?>
注意事项
微信公众平台 token 与自己编写的微信接口文件中的 token 的值必须保持一致
编写php代码,需使用专业的php编辑工具,如editplus,dreamweaver等
上述天气接口文件中,百度车联api ak代码已换成 自已申请的百度车联api ak代码:请申请好后,自行填入
如要不明白的地方,可以关注我的百度空间.留言和我联系!
微信天气预报开发最新代码：
responsemsg(); //$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 = %s ; 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 = %s ; $resultstr = sprintf($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; } } ?>