hibernate+struts2实现添删改查

package com.servlet; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.pojos.Users; import com.service.IUserService; public class UserServlet extends HttpServlet { ApplicationContext atx=new ClassPathXmlApplicationContext("applicationContext.xml"); private IUserService userService=(IUserService) atx.getBean("userService"); // public void setUserService(IUserService userService) { // this.userService = userService; // } public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); String p=request.getParameter("p"); if(p.equals("userLogin")) { this.userLogin(request, response); } if(p.endsWith("getAllUsers")) { this.getAllUsers(request, response); } if(p.endsWith("addUser")) { this.addUser(request, response); } if(p.equals("getUpdateUserPage")) { this.getUpdateUserPage(request, response); } if(p.equals("updateUser")) { this.updateUser(request, response); } if(p.equals("deleteUserById")) { this.deleteUserById(request, response); } } private void deleteUserById(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ // TODO Auto-generated method stub int uid=Integer.parseInt(request.getParameter("uid")); userService.deleteUserById(uid); this.getAllUsers(request, response); } private void updateUser(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ // TODO Auto-generated method stub int uid=Integer.parseInt(request.getParameter("uid")); String uname=request.getParameter("uname"); String upass=request.getParameter("upass"); String sex=request.getParameter("sex"); String address=request.getParameter("address"); Users u=new Users(); u.setUid(uid); u.setUname(uname); u.setUpass(upass); u.setSex(sex); u.setAddress(address); userService.updateUser(u); this.getAllUsers(request, response); } private void getUpdateUserPage(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ // TODO Auto-generated method stub int uid=Integer.parseInt(request.getParameter("uid")); Users user=userService.getUserById(uid); request.setAttribute("user", user); request.getRequestDispatcher("/updateUserPage.jsp").forward(request, response); } private void addUser(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException { // TODO Auto-generated method stub String uname=request.getParameter("uname"); String upass=request.getParameter("upass"); String sex=request.getParameter("sex"); String address=request.getParameter("address"); Users u=new Users(); u.setUname(uname); u.setUpass(upass); u.setSex(sex); u.setAddress(address); userService.addUser(u); this.getAllUsers(request, response); } private void getAllUsers(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub List<Users> user=userService.getAllUsers(); request.setAttribute("user", user); request.getRequestDispatcher("/showAll.jsp").forward(request, response); } public void userLogin(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String uname=request.getParameter("uname"); String upass=request.getParameter("upass"); Users user=userService.userLogin(uname,upass); if(user!=null) { request.getRequestDispatcher("/main.jsp").forward(request, response); } else { response.sendRedirect("login.jsp"); } } }