删除员工信息

属于服务器端的控制层的Servlet类

功能：接收页面端修改员工发送过来的请求，查询要删除的一条员工的信息

servlet+jsp版本

package web;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import dao.EmpDao;
//属于服务器端的控制层的Servlet类
//功能：接收页面端修改员工发送过来的请求，查询要删除的一条员工的信息
public class EmpDeleteServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//设置参数中文编码request.setCharacterEncoding("utf-8");//1.接收页面端点击修改按钮发送过来的请求，同时也接收请求中的参数；String StrID=request.getParameter("id");//2.调用EmpDao dao=new EmpDao();dao.deleteEmpByID(Integer.parseInt(StrID));//3.模型//转发  重定向response.sendRedirect("list");}}

servlet+jsp+el版本

package web;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import bean.Emp;
import dao.impl.EmpDao;
import dao.impl.EmpDaoImpl;
//控制层 -- 服务器端
public class EmpDeleteServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//设置参数中文编码request.setCharacterEncoding("utf-8");//接收页面表单提交的请求，同时也接收表单提交的数据String strId=request.getParameter("id");//调用模型层，由模型层将数据在数据库中完成修改EmpDao dao=new EmpDaoImpl();dao.deleteEmpById(Integer.parseInt(strId));//跳转到视图层，返回到list首页response.sendRedirect("list");}}

项目代码地址