本文内容较多，包括微信接入、获取微信用户信息、微信支付、JSSDK配置参数获取等部分。如果读者对微信开发没有一个主观上的认识，那么建议读者先研读 微信公众平台开发者文档 ，然后再阅读本文，效果更佳！另外本文的分章节版本可以在 八宝粥的博客 找到。
1.在app/config/params.php中配置token参数
return [
//微信接入
&＃39;wechat&＃39; =>[
&＃39;token&＃39; => &＃39;your token&＃39;,
],
];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。
&＃39;urlManager&＃39; => [
&＃39;enablePrettyUrl&＃39; => true,
&＃39;enableStrictParsing&＃39; => true,
&＃39;showScriptName&＃39; => false,
&＃39;rules&＃39; => [
[
&＃39;class&＃39; => &＃39;yii\rest\UrlRule&＃39;,
&＃39;controller&＃39; => &＃39;wechat&＃39;,
&＃39;extraPatterns&＃39; => [
&＃39;GET valid&＃39; => &＃39;valid&＃39;,
],
],
],
],3.在app/controllers中新建WechatController
checkSignature($signature,$timestamp,$nonce)){
echo $echoStr;
}
}
private function checkSignature($signature,$timestamp,$nonce)
{
// you must define TOKEN by yourself
$token = Yii::$app->params[&＃39;wechat&＃39;][&＃39;token&＃39;];
if (!$token) {
echo &＃39;TOKEN is not defined!&＃39;;
} 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;
}
}
}
}在微信公众号后台配置URL和Token，然后提交验证即可。
URL:http://app.demo.com/wechats/valid Token:your token
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 &＃39;微信昵称&＃39;, `sex` tinyint(4) NOT NULL COMMENT &＃39;性别&＃39;, `headimgurl` varchar(255) COLLATE utf8_unicode_ci NOT NULL COMMENT &＃39;头像&＃39;, `country` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT &＃39;国家&＃39;, `province` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT &＃39;省份&＃39;, `city` varchar(50) COLLATE utf8_unicode_ci NOT NULL COMMENT &＃39;城市&＃39;, `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`);
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[&＃39;wechat&＃39;][&＃39;appid&＃39;];
$appsecret = Yii::$app->params[&＃39;wechat&＃39;][&＃39;appsecret&＃39;];
$request_url = &＃39;https://api.weixin.qq.com/sns/oauth2/access_token?appid=&＃39;.$appid.&＃39;&secret=&＃39;.$appsecret.&＃39;&code=&＃39;.$code.&＃39;&grant_type=authorization_code&＃39;;
//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[&＃39;access_token&＃39;];
$refresh_token = $result[&＃39;refresh_token&＃39;];
$openid = $result[&＃39;openid&＃39;];
//请求微信接口，获取用户信息
$userInfo = $this->getUserInfo($access_token,$openid);
$user_check = WechatUser::find()->where([&＃39;openid&＃39;=>$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)
{
$request_url = &＃39;https://api.weixin.qq.com/sns/userinfo?access_token=&＃39;.$access_token.&＃39;&openid=&＃39;.$openid.&＃39;&lang=zh_CN&＃39;;
//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"];
$user = WechatUser::find()->where([&＃39;openid&＃39;=>$openid])->one();
if ($user) {
$result[&＃39;error&＃39;] = 0;
$result[&＃39;msg&＃39;] = &＃39;获取成功&＃39;;
$result[&＃39;user&＃39;] = $user;
} else {
$result[&＃39;error&＃39;] = 1;
$result[&＃39;msg&＃39;] = &＃39;没有该用户&＃39;;
}
} else {
$result[&＃39;error&＃39;] = 1;
$result[&＃39;msg&＃39;] = &＃39;openid为空&＃39;;
}
return $result;
}1.微信支付接口：打包支付数据
public function actionPay(){
if(isset($_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[&＃39;wechat&＃39;][&＃39;appid&＃39;];
$mchid = Yii::$app->params[&＃39;wechat&＃39;][&＃39;mchid&＃39;];
$key = Yii::$app->params[&＃39;wechat&＃39;][&＃39;key&＃39;];
$notifyUrl = Yii::$app->params[&＃39;wechat&＃39;][&＃39;notifyUrl&＃39;];
//支付打包
$wx_pay = new WechatPay($mchid, $appid, $key);
$package = $wx_pay->createJsBizPackage($uid, $totalFee, $oid, $notifyUrl, $timestamp);
$result[&＃39;error&＃39;] = 0;
$result[&＃39;msg&＃39;] = &＃39;支付打包成功&＃39;;
$result[&＃39;package&＃39;] = $package;
return $result;
}else{
$result[&＃39;error&＃39;] = 1;
$result[&＃39;msg&＃39;] = &＃39;请求参数错误&＃39;;
}
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, &＃39;SimpleXMLElement&＃39;, LIBXML_NOCDATA);
//
if ($postObj === false) {
die(&＃39;parse xml error&＃39;);
}
if ($postObj->return_code != &＃39;SUCCESS&＃39;) {
die($postObj->return_msg);
}
if ($postObj->result_code != &＃39;SUCCESS&＃39;) {
die($postObj->err_code);
}
//微信支付参数
$appid = Yii::$app->params[&＃39;wechat&＃39;][&＃39;appid&＃39;];
$mchid = Yii::$app->params[&＃39;wechat&＃39;][&＃39;mchid&＃39;];
$key = Yii::$app->params[&＃39;wechat&＃39;][&＃39;key&＃39;];
$wx_pay = new WechatPay($mchid, $appid, $key);
//验证签名
$arr = (array)$postObj;
unset($arr[&＃39;sign&＃39;]);
if ($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
$orders = Order::find()->where([&＃39;uid&＃39;=>$postObj->openid, &＃39;oid&＃39;=>$postObj->out_trade_no, &＃39;status&＃39; => 0])->all();
if(count($orders) > 0){
//更新订单状态
foreach ($orders as $order) {
//更新订单
$order[&＃39;status&＃39;] = 1;
$order->update();
}
return &＃39;3.微信支付类 WechatPay.php
mchid = $mchid;
$this->appid = $appid;
$this->key = $key;
}
public function createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp){
$cOnfig= array(
&＃39;mch_id&＃39; => $this->mchid,
&＃39;appid&＃39; => $this->appid,
&＃39;key&＃39; => $this->key,
);
$unified = array(
&＃39;appid&＃39; => $config[&＃39;appid&＃39;],
&＃39;attach&＃39; => &＃39;支付&＃39;,
&＃39;body&＃39; => $orderName,
&＃39;mch_id&＃39; => $config[&＃39;mch_id&＃39;],
&＃39;nonce_str&＃39; => self::createNonceStr(),
&＃39;notify_url&＃39; => $notifyUrl,
&＃39;openid&＃39; => $openid,
&＃39;out_trade_no&＃39; => $outTradeNo,
&＃39;spbill_create_ip&＃39; => &＃39;127.0.0.1&＃39;,
&＃39;total_fee&＃39; => intval($totalFee * 100),
&＃39;trade_type&＃39; => &＃39;JSAPI&＃39;,
);
$unified[&＃39;sign&＃39;] = self::getSign($unified, $config[&＃39;key&＃39;]);
$respOnseXml= self::curlPost(&＃39;https://api.mch.weixin.qq.com/pay/unifiedorder&＃39;, self::arrayToXml($unified));
$unifiedOrder = simplexml_load_string($responseXml, &＃39;SimpleXMLElement&＃39;, LIBXML_NOCDATA);
if ($unifiedOrder === false) {
die(&＃39;parse xml error&＃39;);
}
if ($unifiedOrder->return_code != &＃39;SUCCESS&＃39;) {
die($unifiedOrder->return_msg);
}
if ($unifiedOrder->result_code != &＃39;SUCCESS&＃39;) {
die($unifiedOrder->err_code);
}
$arr = array(
"appId" => $config[&＃39;appid&＃39;],
"timeStamp" => $timestamp,
"nonceStr" => self::createNonceStr(),
"package" => "prepay_id=" . $unifiedOrder->prepay_id,
"signType" => &＃39;MD5&＃39;,
);
$arr[&＃39;paySign&＃39;] = self::getSign($arr, $config[&＃39;key&＃39;]);
return $arr;
}
public static function curlGet($url = &＃39;&＃39;, $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 = &＃39;&＃39;, $postData = &＃39;&＃39;, $optiOns= array()){
if (is_array($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 = &＃39;abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789&＃39;;
$str = &＃39;&＃39;;
for ($i = 0; $i<$length; $i++){
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
public static function arrayToXml($arr){
$xml = "";
foreach ($arr as $key => $val){
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "";
} else {
$xml .= "<" . $key . ">";
}
}
$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 . "&";
}
}
$reqPar = &＃39;&＃39;;
if (strlen($buff)>0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
}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: &＃39;&＃39;, // 必填，公众号的唯一标识
timestamp: , // 必填，生成签名的时间戳
nonceStr: &＃39;&＃39;, // 必填，生成签名的随机串
signature: &＃39;&＃39;,// 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
$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 = $redis->get(&＃39;wechat:jsapi_ticket&＃39;);
if ($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(&＃39;wechat:jsapi_ticket&＃39;, $ticket);
$redis->expire(&＃39;wechat:jsapi_ticket&＃39;, 7000);
}
}
return $ticket;
}
public static function getAccessToken() {
//使用Redis缓存 access_token
$redis = Yii::$app->redis;
$redis_token = $redis->get(&＃39;wechat:access_token&＃39;);
if ($redis_token) {
$access_token = $redis_token;
} else {
$appid = Yii::$app->params[&＃39;wechat&＃39;][&＃39;appid&＃39;];
$appsecret = Yii::$app->params[&＃39;wechat&＃39;][&＃39;appsecret&＃39;];
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$appsecret;
$res = json_decode(self::curlGet($url));
$access_token = $res->access_token;
if ($access_token) {
$redis->set(&＃39;wechat:access_token&＃39;, $access_token);
$redis->expire(&＃39;wechat:access_token&＃39;, 7000);
}
}
return $access_token;
}
public static function curlGet($url = &＃39;&＃39;, $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 = &＃39;&＃39;, $postData = &＃39;&＃39;, $optiOns= array()){
if (is_array($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 = &＃39;abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789&＃39;;
$str = &＃39;&＃39;;
for ($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[&＃39;url&＃39;])) {
$url = $_REQUEST[&＃39;url&＃39;];
//微信支付参数
$appid = Yii::$app->params[&＃39;wechat&＃39;][&＃39;appid&＃39;];
$mchid = Yii::$app->params[&＃39;wechat&＃39;][&＃39;mchid&＃39;];
$key = Yii::$app->params[&＃39;wechat&＃39;][&＃39;key&＃39;];
$wx_pay = new WechatPay($mchid, $appid, $key);
$package = $wx_pay->getSignPackage($url);
$result[&＃39;error&＃39;] = 0;
$result[&＃39;msg&＃39;] = &＃39;获取成功&＃39;;
$result[&＃39;config&＃39;] = $package;
} else {
$result[&＃39;error&＃39;] = 1;
$result[&＃39;msg&＃39;] = &＃39;参数错误&＃39;;
}
return $result;
}以上就是Yii2.0实现微信公众号后台开发的详细内容，更多请关注php中文网其它相关文章！
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