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267
app/api/controller/WxCodeController.php
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267
app/api/controller/WxCodeController.php
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<?php
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namespace app\api\controller;
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use app\common\service\wechat\WeChatConfigService;
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use EasyWeChat\MiniApp\Application;
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use think\facade\Log;
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class WxCodeController extends BaseApiController
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{
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public function getWxacode()
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{
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try {
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// 1. 获取参数
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$scene = $this->request->param('scene', 'default');
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$url = $this->request->param('page', 'pages/index/index');
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$width = $this->request->param('width', 430);
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// 'env_version' => 'trial',
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// 'env_version' => 'develop'
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$envVersion = $this->request->param('env_version', 'develop');
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// 2. 参数验证
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if (strlen($scene) > 32) {
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return $this->fail('场景值不能超过32个字符');
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}
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// 3. 获取微信配置
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$config = WeChatConfigService::getMnpConfig();
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if (empty($config['app_id']) || empty($config['secret'])) {
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return $this->fail('微信小程序配置不完整');
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}
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// 4. 创建微信小程序应用实例
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$app = new Application($config);
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// 5. 使用新的方式调用：通过 createClient() 调用API
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$response = $app->createClient()->postJson('/wxa/getwxacodeunlimit', [
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'scene' => 'registerSource=2' , // 0普通 1电梯 2充电宝
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'page' => $url,
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'width' => $width,
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'auto_color' => false,
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'line_color' => ['r' => 0, 'g' => 0, 'b' => 0],
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'is_hyaline' => false,
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'env_version' => $envVersion,
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'check_path' => false,
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]);
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// 6. 处理响应结果
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if ($this->isImageResponse($response)) {
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// 保存到文件并返回URL
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return $this->saveQrCodeToFile($response, $scene, $url);
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} else {
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// 处理错误响应
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return $this->handleErrorResponse($response);
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}
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} catch (\Throwable $e) {
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Log::error('生成小程序码异常：' . $e->getMessage());
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Log::error('异常追踪：' . $e->getTraceAsString());
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return $this->fail('生成失败：' . $e->getMessage());
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}
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}
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/**
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* 判断是否为图片响应
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*/
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private function isImageResponse($response): bool
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{
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$contentType = $response->getHeaderLine('content-type');
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return strpos($contentType, 'image/') !== false
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|| strpos($contentType, 'application/octet-stream') !== false;
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}
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/**
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* 保存二维码到文件
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*/
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private function saveQrCodeToFile($response, $scene, $page)
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{
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try {
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// 生成文件名
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$filename = 'wxacode_' . date('YmdHis') . '_' . substr(md5($scene . $page), 0, 8) . '.png';
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// 保存目录
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$saveDir = public_path() . 'uploads/wxqrcode/';
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// 确保目录存在
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if (!is_dir($saveDir)) {
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mkdir($saveDir, 0755, true);
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}
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$savePath = $saveDir . $filename;
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// 保存文件（新版本方式）
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$content = $response->getContent();
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file_put_contents($savePath, $content);
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// 验证文件
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if (!file_exists($savePath) || filesize($savePath) === 0) {
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throw new \Exception('文件保存失败或为空');
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}
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// 返回结果
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$fileUrl = request()->domain() . '/uploads/wxqrcode/' . $filename;
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return $this->success('生成成功', [
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'url' => $fileUrl,
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'path' => '/uploads/wxqrcode/' . $filename,
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'filename' => $filename,
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'file_size' => filesize($savePath),
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'scene' => $scene,
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'page' => $page,
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]);
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} catch (\Exception $e) {
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Log::error('保存文件失败：' . $e->getMessage());
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// 备用方案：返回Base64
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$content = $response->getContent();
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$base64 = 'data:image/png;base64,' . base64_encode($content);
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return $this->success('生成成功（Base64格式）', [
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'base64' => $base64,
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'scene' => $scene,
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'page' => $page,
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]);
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}
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}
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/**
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* 处理错误响应
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*/
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private function handleErrorResponse($response)
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{
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$content = $response->getContent();
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$data = json_decode($content, true);
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if (JSON_ERROR_NONE === json_last_error() && isset($data['errcode'])) {
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$errorMsg = $this->getWeChatErrorMessage($data['errcode']);
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Log::error('微信接口错误：' . $errorMsg . '，数据：' . $content);
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return $this->fail('微信接口错误：' . $errorMsg);
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}
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Log::error('未知错误响应：' . $content);
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return $this->fail('生成失败：未知的响应格式');
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}
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/**
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* 获取微信错误信息
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*/
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private function getWeChatErrorMessage($errcode)
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{
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$errorMap = [
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-1 => '系统繁忙，请稍候再试',
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40001 => 'AppSecret错误或access_token无效',
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40002 => '无效的凭证类型',
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40013 => '无效的AppID',
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41030 => '页面路径不存在或有权限限制',
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45009 => '接口调用频率超限',
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85064 => '找不到该小程序',
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85065 => '小程序未发布或已下架',
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86004 => '无效的scene参数',
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87009 => '无效的页面路径',
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9401020 => '小程序未发布',
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];
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return $errorMap[$errcode] ?? ('错误码：' . $errcode);
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}
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/**
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* 测试版本 - 直接输出图片
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*/
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public function testGenerate()
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{
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try {
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$scene = $this->request->param('scene', 'test');
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$page = $this->request->param('page', 'pages/index/index');
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$config = WeChatConfigService::getMnpConfig();
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$app = new Application($config);
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$response = $app->createClient()->postJson('/wxa/getwxacodeunlimit', [
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'scene' => $scene,
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'page' => $page,
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'width' => 430,
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]);
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// 直接输出图片
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header('Content-Type: ' . $response->getHeaderLine('content-type'));
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echo $response->getContent();
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exit;
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} catch (\Exception $e) {
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return json([
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'error' => $e->getMessage(),
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'trace' => $e->getTraceAsString(),
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]);
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}
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}
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/**
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* 检查配置和环境
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*/
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public function checkEnv()
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{
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try {
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$config = WeChatConfigService::getMnpConfig();
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$checks = [
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'config_exists' => !empty($config),
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'app_id_exists' => !empty($config['app_id']),
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'secret_exists' => !empty($config['secret']),
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'class_exists' => class_exists('EasyWeChat\MiniApp\Application'),
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'createClient_method' => method_exists('EasyWeChat\MiniApp\Application', 'createClient'),
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];
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// 测试创建实例
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if ($checks['class_exists']) {
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$app = new Application($config);
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$checks['instance_created'] = true;
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// 测试获取access_token
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try {
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$accessToken = $app->getAccessToken()->getToken();
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$checks['access_token_ok'] = !empty($accessToken);
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} catch (\Exception $e) {
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$checks['access_token_error'] = $e->getMessage();
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}
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}
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return $this->success('环境检查', [
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'checks' => $checks,
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'config' => [
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'app_id' => $config['app_id'] ?? '未设置',
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'secret_set' => !empty($config['secret']),
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],
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'suggestions' => $this->getSuggestions($checks),
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]);
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} catch (\Exception $e) {
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return $this->fail('检查失败：' . $e->getMessage());
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}
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}
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private function getSuggestions($checks)
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{
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$suggestions = [];
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if (!$checks['config_exists']) {
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$suggestions[] = '配置不存在，请检查 WeChatConfigService::getMnpConfig()';
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}
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if (!$checks['app_id_exists']) {
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$suggestions[] = '请在.env中设置 WECHAT_MINI_PROGRAM_APPID';
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}
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if (!$checks['secret_exists']) {
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$suggestions[] = '请在.env中设置 WECHAT_MINI_PROGRAM_SECRET';
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}
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if (!$checks['class_exists']) {
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$suggestions[] = 'EasyWeChat未安装或版本不兼容，请执行：composer require overtrue/wechat';
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}
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return $suggestions;
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}
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}
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