郴州高椅岭/关键词的优化和推广
AdminEx - 响应式设计后台管理系统基本功能
需要的文件
链接：https://pan.baidu.com/s/1-2WeqneFeoxzl_MdOiHbUA
提取码：ayan
新建项目
来登录页
@Controller
public class IndexController {/*** 来登录页** @return*/@GetMapping(value = {"/", "/login"})public String loginPage() {return "login";}
}
去主页
@PostMapping("/login")public String main(){//登录成功重定向到index.htmlreturn "redirect:/index";}/*** 去主页index* @return*/@GetMapping("index.html")public String indexPage(){return "index";}
@AllArgsConstructor
@NoArgsConstructor
@Data
public class User {private String username;private String password;
}
package com.wenlaing.admin.controller;import com.wenlaing.admin.bean.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;import javax.servlet.http.HttpSession;@Controller
public class IndexController {/*** 来登录页* @return*/@GetMapping(value = {"/","/login"})public String loginPage(){return "main";}@PostMapping("/login")public String main(User user, HttpSession session, Model model){ //RedirectAttributesif(StringUtils.hasLength(user.getUsername()) && "123456".equals(user.getPassword())){//把登陆成功的用户保存起来session.setAttribute("loginUser",user);//登录成功重定向到main.html; 重定向防止表单重复提交return "redirect:/main.html";}else {model.addAttribute("msg","账号密码错误");//回到登录页面return "main";}}/*** 去main页面* @return*/@GetMapping("/main.html")public String mainPage(HttpSession session, Model model){//最好用拦截器,过滤器Object loginUser = session.getAttribute("loginUser");if(loginUser != null){return "main";}else {//session过期，没有登陆过//回到登录页面model.addAttribute("msg","请重新登录");return "main";}}}登录页
html lang="en" xmlns:th="http://www.thymeleaf.org"><!-- 要加这玩意thymeleaf才能用 --><form class="form-signin" action="index.html" method="post" th:action="@{/login}">
<div class="login-wrap"><label style="color: #ff0000" th:text="${msg}"></label><input type="text" name="username" class="form-control" placeholder="用户名" autofocus><input type="password" name="password" class="form-control" placeholder="密码"><button class="btn btn-lg btn-login btn-block" type="submit"><i class="fa fa-check"></i></button><div class="registration">还没有账号?<a class="" href="registration.html">去注册</a></div><label class="checkbox"><input type="checkbox" value="remember-me"> 记住密码<span class="pull-right"><a data-toggle="modal" href="#myModal"> 忘记密码?</a></span></label></div>页面提示信息
<label style="color: #ff0000" th:text="${msg}"></label>
