对接支付宝php版easysdk接口分享

在网上没有找到支付宝easysdk接口的对接详细说明，自己一步一步的摸索，其中使用chatgpt的帮助作用不少。
根据官方给的文档
需要执行composer require alipaysdk/easysdk:^2.0安装sdk。如果你的项目已经安装过其它扩展，可以先把vendor文件夹备份一份，我用的是laravel框架，先问问chatgpt一般应该在那个文件下执行这个命令：

执行以后报错：
PHP Fatal error: Uncaught Error: Call to undefined function Composer\XdebugHandler\putenv() in phar:///www/server/php/74/bin/composer/vendor/composer/xdebug-handler/src/Process.php:93
Stack trace:
#0 phar:///www/server/php/74/bin/composer/vendor/composer/xdebug-handler/src/Status.php(48): Composer\XdebugHandler\Process::setEnv()
#1 phar:///www/server/php/74/bin/composer/vendor/composer/xdebug-handler/src/XdebugHandler.php(83): Composer\XdebugHandler\Status->construct()
#2 phar:///www/server/php/74/bin/composer/bin/composer(16): Composer\XdebugHandler\XdebugHandler->construct()
#3 /www/server/php/74/bin/composer(24): require(‘…’) …

问chatgpt怎样解决：

重新执行安装命令又报错，报错和chatgpt回答如下：

宝塔上安装fileinfo扩展

其它的一些类似的报错就不贴在这里了，可以在这个地址查看详细内容。
sdk安装好后，把路由和控制器写好，控制器代码：

<?phpnamespace App\Http\Controllers;
require '../vendor/autoload.php';
use Illuminate\Http\Request;
use Alipay\EasySDK\Kernel\Factory;
use Alipay\EasySDK\Kernel\Util\ResponseChecker;
use Alipay\EasySDK\Kernel\Config;class AlipayController extends Controller
{public function createPayment(){//1. 设置参数（全局只需设置一次）Factory::setOptions($this->getOptions());try {//2. 发起API调用（以支付能力下的统一收单交易创建接口为例）$result = Factory::payment()->common()->create("iPhone6 16G", "20230526235526001", "88.88", "2088102170439210");$responseChecker = new ResponseChecker();//3. 处理响应或异常if ($responseChecker->success($result)) {// $payUrl = $result->qrCode;// header("Location: {$payUrl}");$body = $result->body;//通过打印返回信息，跳转的支付宝支付页面        print($body);echo "调用成功". PHP_EOL;} else {echo "调用失败，原因：". $result->msg."，".$result->subMsg.PHP_EOL;}} catch (Exception $e) {echo "调用失败，". $e->getMessage(). PHP_EOL;;}}function getOptions(){$options = new Config();$options->protocol = 'https';$options->gatewayHost = 'openapi-sandbox.dl.alipaydev.com';$options->signType = 'RSA2';$options->appId = '202100012266727922';$options->method = 'alipay.trade.page.pay';// 为避免私钥随源码泄露，推荐从文件中读取私钥字符串而不是写入源码中  method$options->merchantPrivateKey = 'MIIEpQIBAAKCAQEAy5hoPV8cQQ8+4oj81S6/sMf7Q76qasDjnfcl5bvCR7jlqgxkqTLvp804bsNYCGLpxQzyO2gK08lO5B+HJPG2QHNLMxpoAJZ+BJpTgIUOAjgQLt/1aSnBq+kmK36msuiWKqCdN551rBIzGDSv0xg6L8oR2BAR1hqmSz5POLMkwFwMkwGnxrOrzBmF8ll5EwFQGtIesLUNf8fSJTXY70yddGYz/ojy77xRtuP1GaUSRgXcUh5JBx8048L8zMW2S8id1X+otNXmFDZeBJ+1zQvxQA9ustAbUMU4yb7Z0y7UxiB9Q+4Mg5bPkFMeFlQ6HE+N/qbZLCWOXU6TjKRUTOWXHwIDAQABAoIBAQCh2v7701H98uXWaHs/65NfMgzyNXD7v271FRdexN7V8As9He8kiCb4avDzNX8V47Te/8TPL450AjUirGHfH/34zO+6p8KIvRtgA2Rg5uZVI0bSTR+nxBeA2LCMoXpa/wbqypdSMTpxWmKeWrxxAHC5r1ZyQ4w6fyM27ElE1T5hYSA9bjK4kklJ3LnvdSFTrHOOLDvsLne56DOkakE+vhiQqzRVMpPLZZr+CjyeWJNSvt8cCGmJsmKj3eYE6Z3PRwqtzS7qiGtUnuOViat1qEp78LX8dnxu0D8SB5hYoivMd3qYbQUF1ZgYVGyqUW7iOUeM8bEeTLQ5XPwDwWJVFBzZAoGBAPd10Uyqr/ffz94xMM+9TlFIvIZ6535yjhIuMzP6PxLElKaCu1wc6lc3it8ajrvWCXNzbCE+55Ty3tGq6rymZAmv347dC30VXCtNQeP4r+ztdgi3WH8oqfGWpiEF3kqrqZYVleMKyp8uQZZC2ypWEM6RYTfYijC/Rh3KvGCkWoEtAoGBANKfEPAiE+YFSabAUr31NBKiRFJhxHCSOHW2pL+X8JRyO8S9PfEp8y/qChFy1Fm7m/Ur4UsEOgVa5esTUCeMfyqBvDPs5IQzmRkC8Lbzbc7fQgqAU6xERIDUPhFbhQEJh/Pkj0tnyzOkIN2goI48Vg8FI2b2s+L14EzBWpHBArD7AoGBANHWWT3Ou1rQsb6zLbXqy/+HUz4h+C00TJ7ECG059cQfaAHud5v7dQeyNJNNPN2w+OCqbnWelteqPyHB8j04RzojpcnKTRSrSTX61DXRSrT5A48Okf955unSmlsEU+QzvqFi+m/FVd43ZixZ0ukKhEP16V9mwn/lojpfEPBOTeSdAoGATNqyKY2lySdgyrIe/yW8TJhdado2/gS9CWcOEsN0jBZq7M1JDvkJvhAegGNwTRYCQKI0YVU3fsC+aNrxQp0nwfD5JdFpSTwyv0etYnTNOtGInaBZ5+A5RvErfNXyYICD1WEvUIqdQUjAnV6Bd6VYmb58PpQC6+xgXmGnlMvjGYUCgYEA7WM2pqo0YMV2tuZmAL7w6SC9EkJZLELGr5CUueDJiMCNX0mQbIqRSSUIJ/PdHvpbL/wXXS3ngk3aECjp2ZVvBroB4CFJB3zenm9w6iVYVyudR1QNAtaYe0fkpazK8HjG2n49sw2GkFvpYZQ/z2JMQhD4/48TzLg3KI1hKJET+xA=';// $options->alipayCertPath = '../vendor_ali/alipayPublicCert.crt';// $options->alipayRootCertPath = '../vendor_ali/alipayRootCert.crt';// $options->merchantCertPath = '../vendor_ali/appPublicCert.crt';//注：如果采用非证书模式，则无需赋值上面的三个证书路径，改为赋值如下的支付宝公钥字符串即可$options->alipayPublicKey = 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhlQOG8TEwgQzjhf2obQ6Vt7RDBkRarcrAhh/xfzOIs64pafkwys9V1Tl9COnSRlW+0bUoB5OG8V+5kO1rXA8oyzKovOcLRdmX1HXsis3hxJtjIhPH7tv95BqCEkS4snw5jd5UPrM3RscGsJ85ZO7qK4m9qG0s6NAu2glQ1FexQtvfLr7aLucP3uwNOEgv92VyUQiRcMwJ8muTlALIbHMrrGpc6xghRNPSNW8mLi2jZwv8BbntKWt8MJIKxxeEdGM/ld+bDzruCNzvkFR4SgX7NdFVFAeYqSlbwiPtDlT/6jmW6hatamtWoyc0ZM+EpoNeuCu3ZSa1P9niN69d2PzewIDAQAB';// $options->alipayPublicKey = 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwec3sj0MUmC/uTNiXcsMWi3nw3BG1MX4KAMPgq2Wk5CV2cRmkc8sXKuYLQ2VoFnokdZljUikyYWTS/BFsh8hIFK0xqETQmam9MC0exbLqDZOStMIxs9SoNLHdlH/m7/t9aZYAFasK3R4ixcHnJZyrBwrVAAc9ifFQqwGdeLCcHZO9pHGWfcmHCYRkt1MUe6LGRm9U7wBRvDUU8YKgK5D8ao10AaLgHHmZN+uVXTCwxBYGzwuu0MJugDhkJOmafaHvkcz9iuh4VUjHZT0Hbk3XCr9V7gHENHFs70OW34Yl2Ivlg9mc+vzyiEItPV6uzl+x6L/V8lYrq9OSci4RfboJwIDAQAB';$options->gatewayUrl = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";//可设置异步通知接收服务地址（可选） $options->notifyUrl = "https://www.min-ti.com/alipayipn";return $options;}}

根据上面提到的官方文档的代码修改而来。用get方法访问这个方法报错：

AlibabaCloud\Tea\Exception\TeaUnableRetryError: Undefined array key "sign" in file /vendor/alipaysdk/easysdk/php/src/Payment/Common/Client.php on line 121#0 /app/Http/Controllers/AlipayController.php(20): Alipay\EasySDK\Payment\Common\Client->create()
#1 /vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): App\Http\Controllers\AlipayController->createPayment()
#2 /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(45): Illuminate\Routing\Controller->callAction()
#3 /vendor/laravel/framework/src/Illuminate/Routing/Route.php(262): Illuminate\Routing\ControllerDispatcher->dispatch()

这个报错字面意思的key没有定义，在网上找不到这个报错的解决方法，easysdk接口相关的文档也很少，chatgpt也没有足够的信息来定位错误，只好打开报错文件定位到报错行来调试，报错的方法为：

public function create($subject, $outTradeNo, $totalAmount, $buyerId){$_runtime = ["ignoreSSL" => $this->_kernel->getConfig("ignoreSSL"),"httpProxy" => $this->_kernel->getConfig("httpProxy"),"connectTimeout" => 15000,"readTimeout" => 15000,"retry" => ["maxAttempts" => 0]];$_lastRequest = null;$_lastException = null;$_now = time();$_retryTimes = 0;while (Tea::allowRetry(@$_runtime["retry"], $_retryTimes, $_now)) {if ($_retryTimes > 0) {$_backoffTime = Tea::getBackoffTime(@$_runtime["backoff"], $_retryTimes);if ($_backoffTime > 0) {Tea::sleep($_backoffTime);}}$_retryTimes = $_retryTimes + 1;try {$_request = new Request();$systemParams = ["method" => "alipay.trade.create","app_id" => $this->_kernel->getConfig("appId"),"timestamp" => $this->_kernel->getTimestamp(),"format" => "json","version" => "1.0","alipay_sdk" => $this->_kernel->getSdkVersion(),"charset" => "UTF-8","sign_type" => $this->_kernel->getConfig("signType"),"app_cert_sn" => $this->_kernel->getMerchantCertSN(),"alipay_root_cert_sn" => $this->_kernel->getAlipayRootCertSN()];$bizParams = ["subject" => $subject,"out_trade_no" => $outTradeNo,"total_amount" => $totalAmount,"buyer_id" => $buyerId];$textParams = [];$_request->protocol = $this->_kernel->getConfig("protocol");$_request->method = "POST";$_request->pathname = "/gateway.do";$_request->headers = ["host" => $this->_kernel->getConfig("gatewayHost"),"content-type" => "application/x-www-form-urlencoded;charset=utf-8"];$_request->query = $this->_kernel->sortMap(Tea::merge(["sign" => $this->_kernel->sign($systemParams, $bizParams, $textParams, $this->_kernel->getConfig("merchantPrivateKey"))], $systemParams, $textParams));$_request->body = $this->_kernel->toUrlEncodedRequestBody($bizParams);$_lastRequest = $_request;$_response= Tea::send($_request, $_runtime);$respMap = $this->_kernel->readAsJson($_response, "alipay.trade.create");if ($this->_kernel->isCertMode()) {if ($this->_kernel->verify($respMap, $this->_kernel->extractAlipayPublicKey($this->_kernel->getAlipayCertSN($respMap)))) {return AlipayTradeCreateResponse::fromMap($this->_kernel->toRespModel($respMap));}}else {// var_dump($this->_kernel->getConfig("alipayPublicKey"));// echo "\n\n";// var_dump($respMap);if ($this->_kernel->verify($respMap, $this->_kernel->getConfig("alipayPublicKey"))) {return AlipayTradeCreateResponse::fromMap($this->_kernel->toRespModel($respMap));}}throw new TeaError(["message" => "验签失败，请检查支付宝公钥设置是否正确。"]);}catch (Exception $e) {if (!($e instanceof TeaError)) {$e = new TeaError([], $e->getMessage(), $e->getCode(), $e);}if (Tea::isRetryable($e)) {$_lastException = $e;continue;}throw $e;}}throw new TeaUnableRetryError($_lastRequest, $_lastException);}

错误是在最后一行抛出的，其中有一行明显与sign有关：

"sign" => $this->_kernel->sign($systemParams, $bizParams, $textParams, $this->_kernel->getConfig("merchantPrivateKey"))

将其打印却是有值的，这样又陷入死胡同了，不知道究竟是什么原因，chatgpt和网上找答案都没有合适的，参考支付宝的标准接口也没有找到对应的解决办法，后面发现这里是这个接口最坑的地方，真实的报错不是这样的。其中chatgpt还是起到了帮助，帮助解读这个方法的代码，减少了阅读代码的时间。当时没有现成办法，就采用了先注释掉其中一部分代码看看是否还是报这个错来定位具体的报错行，发现是在做这一个判断的时候报的错：

if ($this->_kernel->verify($respMap, $this->_kernel->getConfig("alipayPublicKey")))

接着打印$respMap才发现真正的报错不是这样的:
array(2) { [“http_body”]=> string(140) “{“alipay_trade_create_response”:{“code”:“40002”,“msg”:“Invalid Arguments”,“sub_code”:“isv.invalid-app-id”,“sub_msg”:“没有权限”}}” [“method”]=> string(19) “alipay.trade.create” }
检查对应的appid的账号是否申请了这支付功能和重新填写，之后也遇到appid不对，一一排查以后采用了沙箱账号调试成功！
然后改为pc网页支付，在控制器里面把：

$result = Factory::payment()->common()->create("iPhone6 16G", "20230526235526001", "88.88", "2088102170439210");

改为

 $result = Factory::payment()->page()->pay("iPhone6 16G", "20230526235526001", "88.88", "完成支付返回地址");

如果是手机页面支付，改为

$result = Factory::payment()->wap()->pay("iPhone6 16G", "20230526235526001", "88.88", '中途关闭支付返回地址', "完成支付返回地址");

返回信息验证举例，假如返回的地址对应的方法为alipayreturnurl

public function alipayreturnurl(Request $request){$data = $request->all();$params = $request->query();       Factory::setOptions($this->getOptions());$result = Factory::payment()->common()->verifyNotify($params); // 验证签名if ($result) {// 验证通过，处理业务逻辑       } else {// 验证失败，不处理业务逻辑            } }

这样调试基本ok了，接着是功能细化了。

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