ssm实现登录后进行增删改查
User类
package com.wsw.bean;
import com.mchange.v2.c3p0.ComboPooledDataSource;
public class User {
public User() {
}
public User(int id, String username, String password) {
this.id = id;
this.username = username;
this.password = password;
}
public User(String username, String password) {
this.username = username;
this.password = password;
}
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}
UserController类
package com.wsw.controller;
import com.wsw.bean.User;
import com.wsw.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import java.util.List;
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private IUserService userService;
@RequestMapping("/login.do")
public ModelAndView login(User user){
boolean flag= userService.login(user.getUsername(),user.getPassword());
ModelAndView modelAndView = new ModelAndView();
if (flag){
modelAndView.setViewName("main");
}else {
modelAndView.setViewName("../failer");
}
return modelAndView;
}
@RequestMapping("/findAll.do")
public ModelAndView findAll(){
List<User> userList=userService.findAll();
ModelAndView modelAndView = new ModelAndView();
modelAndView.addObject("userList",userList);
modelAndView.setViewName("user-list");
return modelAndView;
}
@RequestMapping("/deletByid.do")
public String delet(int id){
userService.deletByid(id);
return "redirect:findAll.do";
}
@RequestMapping("/add.do")
public String add(User user){
userService.add(user);
return "redirect:findAll.do";
}
@RequestMapping("toUpdate.do")
public ModelAndView toUpdate(int id){
User user=userService.selectUserById(id);
ModelAndView modelAndView=new ModelAndView();
modelAndView.setViewName("user-update");
modelAndView.addObject("user",user);
return modelAndView;
}
@RequestMapping("/updateA.do")
public String updateA(User user){
userService.updateA(user);
return "redirect:findAll.do";
}
}
UserDao接口
package com.wsw.dao;
import com.wsw.bean.User;
import java.util.List;
public interface UserDao {
User findUserByUserName(String username);
List<User> findAll();
void deletByid(int id);
void add(User user);
User selectById(int id);
void updateAll(User user);
}
UserService类
package com.wsw.service.impl;
import com.wsw.bean.User;
import com.wsw.dao.UserDao;
import com.wsw.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserService implements IUserService {
@Autowired
private UserDao userDao;
@Override
public boolean login(String username, String password) {
User user =userDao.findUserByUserName(username);
if (user!=null && user.getPassword().equals(password)){
return true;
}
return false;
}
@Override
public List<User> findAll(){
return userDao.findAll();
}
@Override
public void deletByid(int id){
userDao.deletByid(id);
}
@Override
public void add(User user){
userDao.add(user);
}
@Override
public User selectUserById(int id) {
return userDao.selectById(id);
}
@Override
public void updateA(User user) {
userDao.updateAll(user);
}
}
IUserService接口
package com.wsw.service;
import com.wsw.bean.User;
import java.util.List;
public interface IUserService {
boolean login(String username,String password);
List<User> findAll();
void deletByid(int id);
void add(User user);
User selectUserById(int id);
void updateA(User user);
}
.jsp关键代码
login.jsp index.jsp update.jsp user-list.jsp user-add.jsp
