系统如下图
package com.qf.atcrowdfunding.bean;
public class User
{
private Integer id;
private String username;
private String loginacct;
private String userpswd;
private String email;
private String createtime;
public User() {
// TODO Auto-generated constructor stub
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getLoginacct() {
return loginacct;
}
public void setLoginacct(String loginacct) {
this.loginacct = loginacct;
}
public String getUserpswd() {
return userpswd;
}
public void setUserpswd(String userpswd) {
this.userpswd = userpswd;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getCreatetime() {
return createtime;
}
public void setCreatetime(String createtime) {
this.createtime = createtime;
}
}
先建立一个user模型
- 再写登陆(运用注解的方式)
|
|----package com.qf.atcrowdfunding.controller;
import javax.servlet.http.HttpSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.qf.atcrowdfunding.bean.AJAXResult;
import com.qf.atcrowdfunding.bean.User;
import com.qf.atcrowdfunding.service.UserService;
@Controller
public class DispatcherController {
@Autowired
private UserService userService;
@RequestMapping("/logout")
public String logout(HttpSession session) {
// 移除
session.removeAttribute("user");
session.invalidate();
return "redirect:login";
}
@RequestMapping("/login")
public String login() {
return "login";
}
@RequestMapping("/main")
public String main() {
return "main";
}
// 如果是返回JSON数据格式时候 @ResponseBody 注解
@ResponseBody
@RequestMapping("/doAJAXLogin")
public Object doAJAXLogin(User user, HttpSession session) {
// 保持错误信息
// 把登录成功信息保持session
AJAXResult result = new AJAXResult();
//
System.out.println("===111"+user.getLoginacct());
System.out.println("===111"+user.getUserpswd());
User dbUser = userService.query4Login(user);
//System.out.println(dbUser);
if (dbUser != null)
{
session.setAttribute("user", dbUser);
result.setSuccess(true);
} else {
result.setSuccess(false);
}
return result;
}
@RequestMapping("/dologin")
public String dologin(User user, Model model) throws Exception {
/**
* 1.收集页面提交参数
* 2.查询数据有没有当前这个用户
* 返回主页
* 登录页面 并显示错误提示信息
*
*/
System.out.println(user.getLoginacct());
User dbUser = userService.query4Login(user);
if (dbUser != null) {
return "main";
} else {
// 错误情况
String errorMsg = "用户名或者密码错误";
model.addAttribute("errorMsg", errorMsg);
return "redirect:login";
}
}
}
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