Yii2.0实现微信公众号后台开发

研读微信公众平台开发者文档，然后再阅读本文，效果更佳！

接入微信

Yii2后台配置

1.在app/config/params.php中配置token参数

return [

//微信接入

'wechat' =>[

'token' => 'your token',

],

];

2.在app/config/main.php中配置路由

因为接口模块使用的RESTful API，所以需要定义路由规则。

'urlManager' => [

'enablePrettyUrl' => true,

'enableStrictParsing' => true,

'showScriptName' => false,

'rules' => [

[

'class' => 'yii\rest\UrlRule',

'controller' => 'wechat',

'extraPatterns' => [

'GET valid' => 'valid',

],

3.在app/controllers中新建WechatController

<?php

namespace api\controllers;

use Yii;

use yii\rest\ActiveController;

class WechatController extends ActiveController

{

public $modelClass = '';

public function actionValid()

{

$echoStr = $_GET["echostr"];

$signature = $_GET["signature"];

$timestamp = $_GET["timestamp"];

$nonce = $_GET["nonce"];

//valid signature , option

if($this->checkSignature($signature,$timestamp,$nonce)){

echo $echoStr;

}

private function checkSignature($signature,$timestamp,$nonce)

{

// you must define TOKEN by yourself

$token = Yii::$app->params['wechat']['token'];

if (!$token) {

echo 'TOKEN is not defined!';

} else {

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

// use SORT_STRING rule

sort($tmpArr, SORT_STRING);

$tmpStr = implode( $tmpArr );

$tmpStr = sha1( $tmpStr );

if( $tmpStr == $signature ){

return true;

}else{

return false;

}

微信公众号后台配置

在微信公众号后台配置URL和Token，然后提交验证即可。

URL:<a rel="nofollow" href="http://app.demo.com/wechats/valid" target="_blank">http://app.demo.com/wechats/valid</a>

Token:your token

获取用户信息

用户表设计

CREATE TABLE `wechat_user` (

`id` int(11) NOT NULL,

`openid` varchar(255) COLLATE utf8_unicode_ci NOT NULL,

`nickname` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '微信昵称',

`sex` tinyint(4) NOT NULL COMMENT '性别',

`headimgurl` varchar(255) COLLATE utf8_unicode_ci NOT NULL COMMENT '头像',

`country` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '国家',

`province` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '省份',

`city` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT '城市',

`access_token` varchar(255) COLLATE utf8_unicode_ci NOT NULL,

`refresh_token` varchar(255) COLLATE utf8_unicode_ci NOT NULL,

`created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP

) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

ALTER TABLE `wechat_user`

ADD PRIMARY KEY (`id`);

获取用户信息的相关接口

1.用户授权接口：获取access_token、openid等；获取并保存用户资料到数据库

public function actionAccesstoken()

{

$code = $_GET["code"];

$state = $_GET["state"];

$appid = Yii::$app->params['wechat']['appid'];

$appsecret = Yii::$app->params['wechat']['appsecret'];

$request_url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$appsecret.'&code='.$code.'&grant_type=authorization_code';

//初始化一个curl会话

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $request_url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($ch);

curl_close($ch);

$result = $this->response($result);

//获取token和openid成功，数据解析

$access_token = $result['access_token'];

$refresh_token = $result['refresh_token'];

$openid = $result['openid'];

//请求微信接口，获取用户信息

$userInfo = $this->getUserInfo($access_token,$openid);

$user_check = WechatUser::find()->where(['openid'=>$openid])->one();

if ($user_check) {

//更新用户资料

} else {

//保存用户资料

}

//前端网页的重定向

if ($openid) {

return $this->redirect($state.$openid);

} else {

return $this->redirect($state);

}

2.从微信获取用户资料

public function getUserInfo($access_token,$openid)

{

$request_url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN';

//初始化一个curl会话

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $request_url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($ch);

curl_close($ch);

$result = $this->response($result);

return $result;

}

3.获取用户资料接口

public function actionUserinfo()

{

if(isset($_REQUEST["openid"])){

$openid = $_REQUEST["openid"];

$user = WechatUser::find()->where(['openid'=>$openid])->one();

if ($user) {

$result['error'] = 0;

$result['msg'] = '获取成功';

$result['user'] = $user;

} else {

$result['error'] = 1;

$result['msg'] = '没有该用户';

}

} else {

$result['error'] = 1;

$result['msg'] = 'openid为空';

}

return $result;

}

微信支付

1.微信支付接口：打包支付数据

public function actionPay(){

if(isset($_REQUEST["uid"])&&isset($_REQUEST["oid"])&&isset($_REQUEST["totalFee"])){

//uid、oid、totalFee

$uid = $_REQUEST["uid"];

$oid = $_REQUEST["oid"];

$totalFee = $_REQUEST["totalFee"];

$timestamp = time();

//微信支付参数

$appid = Yii::$app->params['wechat']['appid'];

$mchid = Yii::$app->params['wechat']['mchid'];

$key = Yii::$app->params['wechat']['key'];

$notifyUrl = Yii::$app->params['wechat']['notifyUrl'];

//支付打包

$wx_pay = new WechatPay($mchid, $appid, $key);

$package = $wx_pay->createJsBizPackage($uid, $totalFee, $oid, $notifyUrl, $timestamp);

$result['error'] = 0;

$result['msg'] = '支付打包成功';

$result['package'] = $package;

return $result;

}else{

$result['error'] = 1;

$result['msg'] = '请求参数错误';

}

return $result;

}

2.接收微信发送的异步支付结果通知

public function actionNotify(){

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

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

//

if ($postObj === false) {

die('parse xml error');

}

if ($postObj->return_code != 'SUCCESS') {

die($postObj->return_msg);

}

if ($postObj->result_code != 'SUCCESS') {

die($postObj->err_code);

}

//微信支付参数

$appid = Yii::$app->params['wechat']['appid'];

$mchid = Yii::$app->params['wechat']['mchid'];

$key = Yii::$app->params['wechat']['key'];

$wx_pay = new WechatPay($mchid, $appid, $key);

//验证签名

$arr = (array)$postObj;

unset($arr['sign']);

if ($wx_pay->getSign($arr, $key) != $postObj->sign) {

die("签名错误");

}

//支付处理正确-判断是否已处理过支付状态

$orders = Order::find()->where(['uid'=>$postObj->openid, 'oid'=>$postObj->out_trade_no, 'status' => 0])->all();

if(count($orders) > 0){

//更新订单状态

foreach ($orders as $order) {

//更新订单

$order['status'] = 1;

$order->update();

}

return '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';

} else {

//订单状态已更新，直接返回

return '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';

}

3.微信支付类 WechatPay.php

<?php

namespace api\sdk;

use Yii;

class WechatPay

{

protected $mchid;

protected $appid;

protected $key;

public function construct($mchid, $appid, $key){

$this->mchid = $mchid;

$this->appid = $appid;

$this->key = $key;

}

public function createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp){

$config = array(

'mch_id' => $this->mchid,

'appid' => $this->appid,

'key' => $this->key,

);

$unified = array(

'appid' => $config['appid'],

'attach' => '支付',

'body' => $orderName,

'mch_id' => $config['mch_id'],

'nonce_str' => self::createNonceStr(),

'notify_url' => $notifyUrl,

'openid' => $openid,

'out_trade_no' => $outTradeNo,

'spbill_create_ip' => '127.0.0.1',

'total_fee' => intval($totalFee * 100),

'trade_type' => 'JSAPI',

);

$unified['sign'] = self::getSign($unified, $config['key']);

$responseXml = self::curlPost('https://api.mch.weixin.qq.com/pay/unifiedorder', self::arrayToXml($unified));

$unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);

if ($unifiedOrder === false) {

die('parse xml error');

}

if ($unifiedOrder->return_code != 'SUCCESS') {

die($unifiedOrder->return_msg);

}

if ($unifiedOrder->result_code != 'SUCCESS') {

die($unifiedOrder->err_code);

}

$arr = array(

"appId" => $config['appid'],

"timeStamp" => $timestamp,

"nonceStr" => self::createNonceStr(),

"package" => "prepay_id=" . $unifiedOrder->prepay_id,

"signType" => 'MD5',

);

$arr['paySign'] = self::getSign($arr, $config['key']);

return $arr;

}

public static function curlGet($url = '', $options = array()){

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_TIMEOUT, 30);

if (!empty($options)) {

curl_setopt_array($ch, $options);

}

//https请求不验证证书和host

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

$data = curl_exec($ch);

curl_close($ch);

return $data;

}

public static function curlPost($url = '', $postData = '', $options = array()){

if (is_array($postData)) {

$postData = http_build_query($postData);

}

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);

curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数

if (!empty($options)) {

curl_setopt_array($ch, $options);

}

//https请求不验证证书和host

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

$data = curl_exec($ch);

curl_close($ch);

return $data;

}

public static function createNonceStr($length = 16){

$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';

$str = '';

for ($i = 0; $i<$length; $i++){

$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);

}

return $str;

}

public static function arrayToXml($arr){

$xml = "<xml>";

foreach ($arr as $key => $val){

if (is_numeric($val)) {

$xml .= "<" . $key . ">" . $val . "</" . $key . ">";

} else {

$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";

}

$xml .= "</xml>";

return $xml;

}

public static function getSign($params, $key){

ksort($params, SORT_STRING);

$unSignParaString = self::formatQueryParaMap($params, false);

$signStr = strtoupper(md5($unSignParaString . "&key=" . $key));

return $signStr;

}

protected static function formatQueryParaMap($paraMap, $urlEncode = false){

$buff = "";

ksort($paraMap);

foreach ($paraMap as $k => $v){

if (null != $v && "null" != $v) {

if ($urlEncode) {

$v = urlencode($v);

}

$buff .= $k . "=" . $v . "&";

}

$reqPar = '';

if (strlen($buff)>0) {

$reqPar = substr($buff, 0, strlen($buff) - 1);

}

return $reqPar;

}

获取JS-SDK的config参数

根据微信公众平台开发者文档：

所有需要使用JS-SDK的页面必须先注入配置信息，否则将无法调用（同一个url仅需调用一次，对于变化url的SPA的web app可在每次url变化时进行调用,目前Android微信客户端不支持pushState的H5新特性，所以使用pushState来实现web app的页面会导致签名失败，此问题会在Android6.2中修复）。

即：

wx.config({

debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。

appId: '', // 必填，公众号的唯一标识

timestamp: , // 必填，生成签名的时间戳

nonceStr: '', // 必填，生成签名的随机串

signature: '',// 必填，签名，见附录1

jsApiList: [] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2

});

1.微信支付类 WechatPay.php

<?php

namespace api\sdk;

use Yii;

class WechatPay

{

public function getSignPackage($url) {

$jsapiTicket = self::getJsApiTicket();

$timestamp = time();

$nonceStr = self::createNonceStr();

// 这里参数的顺序要按照 key 值 ASCII 码升序排序

$string = "jsapi_ticket=".$jsapiTicket."&noncestr=".$nonceStr."×tamp=".$timestamp."&url=".$url;

$signature = sha1($string);

$signPackage = array(

"appId" => $this->appid,

"nonceStr" => $nonceStr,

"timestamp" => $timestamp,

"url" => $url,

"signature" => $signature,

"rawString" => $string

);

return $signPackage;

}

public static function getJsApiTicket() {

//使用Redis缓存 jsapi_ticket

$redis = Yii::$app->redis;

$redis_ticket = $redis->get('wechat:jsapi_ticket');

if ($redis_ticket) {

$ticket = $redis_ticket;

} else {

$accessToken = self::getAccessToken();

$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=".$accessToken;

$res = json_decode(self::curlGet($url));

$ticket = $res->ticket;

if ($ticket) {

$redis->set('wechat:jsapi_ticket', $ticket);

$redis->expire('wechat:jsapi_ticket', 7000);

}

return $ticket;

}

public static function getAccessToken() {

//使用Redis缓存 access_token

$redis = Yii::$app->redis;

$redis_token = $redis->get('wechat:access_token');

if ($redis_token) {

$access_token = $redis_token;

} else {

$appid = Yii::$app->params['wechat']['appid'];

$appsecret = Yii::$app->params['wechat']['appsecret'];

$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$appsecret;

$res = json_decode(self::curlGet($url));

$access_token = $res->access_token;

if ($access_token) {

$redis->set('wechat:access_token', $access_token);

$redis->expire('wechat:access_token', 7000);

}

return $access_token;

}

public static function curlGet($url = '', $options = array()){

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_TIMEOUT, 30);

if (!empty($options)) {

curl_setopt_array($ch, $options);

}

//https请求不验证证书和host

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

$data = curl_exec($ch);

curl_close($ch);

return $data;

}

public static function curlPost($url = '', $postData = '', $options = array()){

if (is_array($postData)) {

$postData = http_build_query($postData);

}

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);

curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数

if (!empty($options)) {

curl_setopt_array($ch, $options);

}

//https请求不验证证书和host

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

$data = curl_exec($ch);

curl_close($ch);

return $data;

}

public static function createNonceStr($length = 16){

$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';

$str = '';

for ($i = 0; $i<$length; $i++){

$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);

}

return $str;

}

2.获取config参数接口

public function actionConfig(){

if (isset($_REQUEST['url'])) {

$url = $_REQUEST['url'];

//微信支付参数

$appid = Yii::$app->params['wechat']['appid'];

$mchid = Yii::$app->params['wechat']['mchid'];

$key = Yii::$app->params['wechat']['key'];

$wx_pay = new WechatPay($mchid, $appid, $key);

$package = $wx_pay->getSignPackage($url);

$result['error'] = 0;

$result['msg'] = '获取成功';

$result['config'] = $package;

} else {

$result['error'] = 1;

$result['msg'] = '参数错误';

}

return $result;

}

以上就是Yii2.0实现微信公众号后台开发的详细内容

Detect languageAfrikaansAlbanianArabicArmenianAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanCebuanoChichewaChinese (Simplified)Chinese (Traditional)CroatianCzechDanishDutchEnglishEsperantoEstonianFilipinoFinnishFrenchGalicianGeorgianGermanGreekGujaratiHaitian CreoleHausaHebrewHindiHmongHungarianIcelandicIgboIndonesianIrishItalianJapaneseJavaneseKannadaKazakhKhmerKoreanLaoLatinLatvianLithuanianMacedonianMalagasyMalayMalayalamMalteseMaoriMarathiMongolianMyanmar (Burmese)NepaliNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSesothoSinhalaSlovakSlovenianSomaliSpanishSundaneseSwahiliSwedishTajikTamilTeluguThaiTurkishUkrainianUrduUzbekVietnameseWelshYiddishYorubaZulu

AfrikaansAlbanianArabicArmenianAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanCebuanoChichewaChinese (Simplified)Chinese (Traditional)CroatianCzechDanishDutchEnglishEsperantoEstonianFilipinoFinnishFrenchGalicianGeorgianGermanGreekGujaratiHaitian CreoleHausaHebrewHindiHmongHungarianIcelandicIgboIndonesianIrishItalianJapaneseJavaneseKannadaKazakhKhmerKoreanLaoLatinLatvianLithuanianMacedonianMalagasyMalayMalayalamMalteseMaoriMarathiMongolianMyanmar (Burmese)NepaliNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSesothoSinhalaSlovakSlovenianSomaliSpanishSundaneseSwahiliSwedishTajikTamilTeluguThaiTurkishUkrainianUrduUzbekVietnameseWelshYiddishYorubaZulu

Text-to-speech function is limited to 200 characters

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