客户反馈循环，客户的反馈模式

我们将介绍如何使用PHP、Java和C++实现客户反馈循环的实现与优化，我们需要创建一个用于接收和存储客户反馈的数据库表，这里以MySQL为例：

CREATE TABLE customer_feedback (
  id int(11) NOT NULL AUTO_INCREMENT,
  name varchar(255) NOT NULL,
  email varchar(255) NOT NULL,
  message text NOT NULL,
  created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

我们分别使用PHP、Java和C++编写客户端代码。

客户反馈循环，客户的反馈模式

PHP实现：

<?php
//连接数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
  die("连接失败： " . $conn->connect_error);
}
?>
<!DOCTYPE html>
<html>
<head>
  <title>客户反馈</title>
</head>
<body>
  <h1>请填写您的反馈</h1>
  <form action="submit_feedback.php" method="post">
    姓名： <input type="text" name="name"><br><br>
    邮箱： <input type="email" name="email"><br><br>
    留言： <textarea name="message"></textarea><br><br>
    <input type="submit" value="提交">
  </form>
</body>
</html>
<?php include 'process_feedback.php'; ?>

Java实现 (使用Servlet):

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@WebServlet("/submit_feedback")
public class SubmitFeedbackServlet extends HttpServlet {
 private static final long serialVersionUID = 1L;
 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String name = request.getParameter("name");
        String email = request.getParameter("email");
        String message = request.getParameter("message");
        try (Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/myDB", "username", "password")){
            String sql = "INSERT INTO customer_feedback (name, email, message) VALUES (?, ?, NOW())";
            PreparedStatement preparedStatement = connection.prepareStatement(sql);
            preparedStatement.setString(1, name);
            preparedStatement.setString(2, email);
            preparedStatement.executeUpdate();
        } catch (SQLException e){
            e.printStackTrace();
        }
      }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }    }