删除员工的servlet代码
由于缺乏具体的上下文和代码信息,以下代码仅供参考:
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/deleteEmployee")
public class DeleteEmployeeServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String employeeId = request.getParameter("employeeId");
Connection conn = null;
PreparedStatement stmt = null;
try {
// 获取数据库连接
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "root", "password");
// 执行SQL语句,删除员工
stmt = conn.prepareStatement("DELETE FROM employee WHERE id = ?");
stmt.setString(1, employeeId);
stmt.executeUpdate();
// 重定向到员工列表页面
response.sendRedirect(request.getContextPath() + "/employeeList");
} catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
response.getWriter().write(e.getMessage());
} finally {
// 关闭数据库连接和SQL语句对象
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
}
该Servlet通过接收HTTP POST请求中的员工ID参数,从数据库中删除对应的员工记录,并重定向到员工列表页面。在实际应用中,需要根据具体的业务逻辑和数据库结构进行修改和优化
原文地址: https://www.cveoy.top/t/topic/hxbG 著作权归作者所有。请勿转载和采集!