Laravel 5.6部署至AWS EC2后出现HTTP ERROR 500请求处理失败求助

Hey there, sorry to hear you're stuck with this HTTP 500 error after moving your Laravel 5.6 app to AWS—since your code works perfectly on your old VPS, this is almost definitely an environment or configuration mismatch. Let's walk through the most common fixes step by step:

• Check Laravel's Detailed Error Logs
  HTTP 500 is a generic error, but Laravel logs all the gory details in storage/logs/laravel.log. SSH into your AWS server and run:

  tail -n 50 /path/to/your/app/storage/logs/laravel.log
  

  This will show you the exact error (like missing extensions, database connection failures, or permission issues) causing the crash.

• Verify Web Server Error Logs
  Don't stop at Laravel's logs—check your web server's logs too for clues:

  • For Apache: /var/log/apache2/error.log
  • For Nginx: /var/log/nginx/error.log
    These might reveal issues like misconfigured virtual hosts, missing rewrite rules, or PHP fatal errors that didn't make it to Laravel's logs.

• Fix File Permissions
  Laravel needs write access to the storage and bootstrap/cache directories to function. On AWS, the web server user is usually www-data (Apache) or nginx (Nginx)—run these commands to set correct permissions:

  # Replace /path/to/your/app with your actual app directory
  sudo chown -R www-data:www-data /path/to/your/app
  sudo chmod -R 755 /path/to/your/app/storage
  sudo chmod -R 755 /path/to/your/app/bootstrap/cache
  

  If you're using Amazon Linux, the web server user might be apache instead of www-data—adjust accordingly.

• Validate Your .env Configuration
  Did you copy your .env file to the AWS server? Double-check these critical values:

  • APP_KEY: Laravel 5.6 requires this to encrypt data. If it's missing or incorrect, you'll get a 500 error. Run php artisan key:generate to create a new one, and make sure it's saved in .env.
  • Database credentials (DB_HOST, DB_PORT, DB_USERNAME, DB_PASSWORD): If you're using AWS RDS, ensure these match your RDS instance's settings.

• Check PHP Version & Required Extensions
  Laravel 5.6 requires PHP >= 7.1.3. Run php -v to confirm your AWS server meets this requirement. Also, verify these extensions are installed:

  php -m | grep -E "openssl|pdo|mbstring|tokenizer|xml|ctype|json"
  

  If any are missing, install them using your package manager (e.g., sudo apt install php-mbstring for Debian/Ubuntu, sudo yum install php-mbstring for Amazon Linux).

• Ensure Database Accessibility
  If you're using AWS RDS, make sure your EC2 instance's security group is allowed to connect to the RDS instance's security group. Add an inbound rule to your RDS security group for port 3306 (MySQL) or 5432 (PostgreSQL) that targets your EC2 security group. You can test the connection directly from your EC2 server with:

  mysql -h your-rds-endpoint -u your-db-user -p
  

• Fix Web Server Rewrite Rules

  • For Nginx: Make sure your server block points to the public directory of your Laravel app and includes the correct rewrite rule:

    server {
        listen 80;
        server_name domain.com;
        root /path/to/your/app/public;
    
        index index.php index.html index.htm;
    
        location / {
            try_files $uri $uri/ /index.php?$query_string;
        }
    
        location ~ \.php$ {
            fastcgi_pass unix:/var/run/php/php7.2-fpm.sock; # Adjust PHP version to match your setup
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
            include fastcgi_params;
        }
    }
    

  • For Apache: Enable mod_rewrite with sudo a2enmod rewrite, then ensure your virtual host allows .htaccess overrides by setting AllowOverride All in the <Directory> block for your app's public folder.

• Clear Laravel Caches
  Old cached configuration/routes from your VPS might be causing conflicts. Run these commands to clear them:

  php artisan cache:clear
  php artisan config:clear
  php artisan route:clear
  php artisan view:clear
  

If none of these steps fix the issue, share the specific error messages from your Laravel or web server logs—we can dig deeper from there!

内容的提问来源于stack exchange，提问作者Satish Bharadwaj