微信公众平台开发入门：[7]开发天气预报功能

2025-12-26 18:29:28

1、中国天气网提供了丰富的气象数据接口。下面我们介绍主要的几个

2、国家根节点接口

该接口以XML格式列出所有的省（自治区、直辖市）的中文名称（quName）和拼音名称（pyName）及省会城市的天气信息

该接口的主要功能是通过它获取省级节点的拼音名称。以广东为例：其pyName是“Guangdong”。

微信公众平台开发入门：[7]开发天气预报功能

3、省级节点接口（以广东为例）

该接口以XML格式列出当前省下辖所有市的中文名称（quName）、拼音名称（pyName）、中心坐标、天气信息以及城市编码。

在这个接口中主要获取城市名称及相应的城市编码。例如，深圳的城市编码为：101280601。可以编写程序将全国城市拓扑结构采集下来。

微信公众平台开发入门：[7]开发天气预报功能

4、实时天气数据（以深圳为例）

该接口以JSON格式列出当前城市的实时天气状况。

{

"weatherinfo": {

"city": "深圳",

"cityid": "101280601",

"temp": "12",

"WD": "东北风",

"WS": "1级",

"SD": "75%",

"WSE": "1",

"time": "21:20",

"isRadar": "1",

"Radar": "JC_RADAR_AZ9755_JB"

}

实时天气数据参数说明，如下所示（3）

微信公众平台开发入门：[7]开发天气预报功能

5、六日天气数据（以深圳为例）

该接口以JSON格式列出当前城市的六日天气状况。

{

"weatherinfo": {

"city": "深圳",

"city_en": "shenzhen",

"date_y": "2014年2月15日",

"date": "",

"week": "星期六",

"fchh": "18",

"cityid": "101280601",

"temp1": "12℃~18℃",

"temp2": "16℃~21℃",

"temp3": "17℃~23℃",

"temp4": "11℃~18℃",

"temp5": "10℃~15℃",

"temp6": "12℃~17℃",

"tempF1": "53.6℉~64.4℉",

"tempF2": "60.8℉~69.8℉",

"tempF3": "62.6℉~73.4℉",

"tempF4": "51.8℉~64.4℉",

"tempF5": "50℉~59℉",

"tempF6": "53.6℉~62.6℉",

"weather1": "多云",

"weather2": "阴",

"weather3": "多云",

"weather4": "中雨",

"weather5": "多云",

"weather6": "阴",

"img1": "1",

"img2": "99",

"img3": "2",

"img4": "99",

"img5": "1",

"img6": "99",

"img7": "8",

"img8": "99",

"img9": "1",

"img10": "99",

"img11": "2",

"img12": "99",

"img_single": "1",

"img_title1": "多云",

"img_title2": "多云",

"img_title3": "阴",

"img_title4": "阴",

"img_title5": "多云",

"img_title6": "多云",

"img_title7": "中雨",

"img_title8": "中雨",

"img_title9": "多云",

"img_title10": "多云",

"img_title11": "阴",

"img_title12": "阴",

"img_title_single": "多云",

"wind1": "微风",

"wind2": "微风",

"wind3": "微风",

"wind4": "东北风3-4级",

"wind5": "微风",

"wind6": "微风",

"fx1": "微风",

"fx2": "微风",

"fl1": "小于3级",

"fl2": "小于3级",

"fl3": "小于3级",

"fl4": "3-4级",

"fl5": "小于3级",

"fl6": "小于3级",

"index": "较舒适",

"index_d": "建议着薄外套、开衫牛仔衫裤等服装。年老体弱者应适当添加衣物，宜着夹克衫、薄毛衣等。",

"index48": "较舒适",

"index48_d": "建议着薄外套、开衫牛仔衫裤等服装。年老体弱者应适当添加衣物，宜着夹克衫、薄毛衣等。",

"index_uv": "最弱",

"index48_uv": "最弱",

"index_xc": "适宜",

"index_tr": "适宜",

"index_co": "舒适",

"st1": "19",

"st2": "13",

"st3": "23",

"st4": "16",

"st5": "24",

"st6": "18",

"index_cl": "适宜",

"index_ls": "适宜",

"index_ag": "不易发"

}

未来六日天气数据主要参数说明如下表所示

微信公众平台开发入门：[7]开发天气预报功能

1、需要将城市编码对照表导入到数据库中，以下是SAE导入后截图

微信公众平台开发入门：[7]开发天气预报功能

2、将城市名转为城市代码的方法，这将在用户发送城市名的时候调用

function fromNameToCode($name)

{

$mysql_host = SAE_MYSQL_HOST_M;

$mysql_host_s = SAE_MYSQL_HOST_S;

$mysql_port = SAE_MYSQL_PORT;

$mysql_user = SAE_MYSQL_USER;

$mysql_password = SAE_MYSQL_PASS;

$mysql_database = SAE_MYSQL_DB;

$mysql_table = "weather";

$mysql_state = "SELECT * FROM ".$mysql_table." WHERE `cityName` = '".$name."'";

$con = mysql_connect($mysql_host.':'.$mysql_port, $mysql_user, $mysql_password, true);

if (!$con){

die('Could not connect: ' . mysql_error());

}

mysql_query("SET NAMES 'UTF8'");

mysql_select_db($mysql_database, $con);

$result = mysql_query($mysql_state);

$cityCode = "";

while($row = mysql_fetch_array($result))

{

$cityCode = $row['cityCode'];

break;

}

mysql_close($con);

return $cityCode;

}

3、编写接口调用函数，用于向天气网发送cURL请求，获取数据

function httpRequest($url)

{

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$output = curl_exec($ch);

curl_close($ch);

if ($output === FALSE){

return "cURL Error: ". curl_error($ch);

}

return $output;

}

4、编写获取天气数据的函数，这里获取实时天气和未来3日天气，并将返回结果封装成图文信息的数组

function getWeatherInfo($cityName)

{

$cityCode = fromNameToCode($cityName);

if ($cityCode == "")

{

return "错误的城市名或者此城市不在数据库中!";

}

//获取实时天气

$url = "http://www.weather.com.cn/data/sk/".$cityCode.".html";

$output = httpRequest($url);

$weather = json_decode($output, true);

$info = $weather['weatherinfo'];

$weatherArray = array();

$weatherArray[] = array("Title"=>$info['city']."天气预报", "Description"=>"", "PicUrl"=>"", "Url" =>"");

if ((int)$cityCode < 101340000){

$result = "实况温度：".$info['temp']."℃ 湿度：".$info['SD']." 风速：".$info['WD'].$info['WSE']."级";

$weatherArray[] = array("Title"=>str_replace("%", "﹪", $result), "Description"=>"", "PicUrl"=>"", "Url" =>"");

}

//获取六日天气

$url = "http://m.weather.com.cn/data/".$cityCode.".html";

$output = httpRequest($url);

$weather = json_decode($output, true);

$info = $weather['weatherinfo'];

if (!empty($info['index_d'])){

$weatherArray[] = array("Title" =>$info['index_d'], "Description" =>"", "PicUrl" =>"", "Url" =>"");

}

$weekArray = array("日","一","二","三","四","五","六");

$maxlength = 3;

for ($i = 1; $i <= $maxlength; $i++) {

$offset = strtotime("+".($i-1)." day");

$subTitle = date("m月d日",$offset)." 周".$weekArray[date('w',$offset)]." ".$info['temp'.$i]." ".$info['weather'.$i]." ".$info['wind'.$i];

$weatherArray[] = array("Title" =>$subTitle, "Description" =>"", "PicUrl" =>"http://discuz.comli.com/weixin/weather/"."d".sprintf("%02u",$info['img'.(($i *2)-1)]).".jpg", "Url" =>"");

}

return $weatherArray;

}

5、在微信公众平台接口函数中处理收到的文本消息时，文本将为城市名，直接调用获取天气的函数

方倍工作室

define("TOKEN", "weixin");

$wechatObj = new wechatCallbackapiTest();

if (!isset($_GET['echostr'])) {

$wechatObj->responseMsg();

}else{

$wechatObj->valid();

}

class wechatCallbackapiTest

{

public function valid()

{

$echoStr = $_GET["echostr"];

if($this->checkSignature()){

echo $echoStr;

exit;

}

private function checkSignature()

{

$signature = $_GET["signature"];

$timestamp = $_GET["timestamp"];

$nonce = $_GET["nonce"];

$token = TOKEN;

$tmpArr = array($token, $timestamp, $nonce);

sort($tmpArr);

$tmpStr = implode($tmpArr);

$tmpStr = sha1($tmpStr);

if($tmpStr == $signature){

return true;

}else{

return false;

}

public function responseMsg()

{

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

if (!empty($postStr)){

$this->logger("R ".$postStr);

$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);

$RX_TYPE = trim($postObj->MsgType);

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)

{

$content = "";

switch ($object->Event)

{

case "subscribe":

$content = "欢迎关注方倍工作室 ";

break;

case "unsubscribe":

$content = "取消关注";

break;

}

$result = $this->transmitText($object, $content);

return $result;

}

private function receiveText($object)

{

$keyword = trim($object->Content);

include("weather.php");

$content = getWeatherInfo($keyword);

$result = $this->transmitNews($object, $content);

return $result;

}

private function transmitText($object, $content)

{

$textTpl = "<xml>

</xml>";

$result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);

return $result;

}

private function transmitNews($object, $arr_item)

{

if(!is_array($arr_item))

return;

$itemTpl = " <item>

</item>

$item_str = "";

foreach ($arr_item as $item)

$item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);

$newsTpl = "<xml>

$item_str</Articles>

</xml>";

$result = sprintf($newsTpl, $object->FromUserName, $object->ToUserName, time(), count($arr_item));

return $result;

}

private function logger($log_content)

{

}

1、成型后的演示效果如下

微信公众平台开发入门：[7]开发天气预报功能

1、在数据库加入邮编、区号、拼音等字段，可以扩展成使用区号等方式查询

2、拥有高级接口的用户，可以使用结合语音识别+中文分词技术，实现语音版的智能查询

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