新手使用spring boot 做的一个登录页面 的心得

很久之前在学校学过jsp和三大框架，之后就在也没接触过web项目，最近公司项目需要做一个web版的数据展示界面，想想用ASP呢还是用JSP，后来发现这些都已经过时了，现在都流行微服务，本来就没有什么WEB开发经验，可把我难坏了，狂补一些前端后端的知识，先看一下登录界面，也是网上copy的代码，自己找的图片，前端用的bootstrap

工程目录是这个样子的

    
    

    
    
    
    



    

        

            

                
LOGIN
                

                    

                        
                        
                    
                    

                        
                        
                    
                    

                        
                            记住我
                        
                    
                    

                        登录
                    
                
            
        
    

前端代码，引用的css

body{
    background: url("../img/1.jpg") no-repeat;

}
.form{background: rgba(255,255,255,0.2);width:400px;margin:120px auto;}
/*阴影*/
.fa{display: inline-block;top: 27px;left: 6px;position: relative;color: #ccc;}
input[type="text"],input[type="password"]{padding-left:26px;}
.checkbox{padding-left:21px;}

后端的控制入口

package springboot.login.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import springboot.login.WebSecurityConfig;
import springboot.login.domain.User;
import springboot.login.service.LoginService;

import javax.servlet.http.HttpSession;

/**
 * Created by huangds on 2017/10/24.
 */
@Controller
public class LoginController {

    @Autowired
    private LoginService loginService;

    @GetMapping("/")
    public String index(@SessionAttribute(WebSecurityConfig.SESSION_KEY)String account,Model model){
        return "View/index";
    }

    @GetMapping("/login")
    public String login(){
        return "login";
    }

    @GetMapping("/loginError")
    public String loginError(){
        return "loginError";
    }

    @GetMapping("/loginDBError")
    public String loginDBError(){
        return "loginDBError";
    }

    @PostMapping("/loginVerify")
    public String loginVerify(String username,String password,HttpSession session){
        User user = new User();
        user.setUsername(username);
        user.setPassword(password);

        boolean verify = loginService.verifyLogin(user);
        try {
            if (verify) {
                session.setAttribute(WebSecurityConfig.SESSION_KEY, username);
                return "View/index";
            } else {
                return "redirect:/loginError";
            }
        }
        catch (Exception ex)
        {
            return "redirect:/loginDBError";
        }
    }
    @GetMapping("/Select")
    public String Select(@SessionAttribute(WebSecurityConfig.SESSION_KEY)String account,Model model){
        return "View/Select";
    }
    @GetMapping("/logout")
    public String logout(HttpSession session){
        session.removeAttribute(WebSecurityConfig.SESSION_KEY);
        return "redirect:/login";
    }
}

数据库的配置application.properties

#数据库配置
spring.datasource.url=jdbc:mysql://localhost:3306/web?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
spring.datasource.username=root
spring.datasource.password=xxxxxxxxx
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.properties.hibernate.hbm2ddl.auto=update

登录表结构

package springboot.login.domain;

import javax.persistence.*;

/**
 * Created by huangds on 2017/10/28.
 */
@Entity
@Table(name="tb_user_management")
public class User {

    @Id
    @Column(name = "id")
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;

    @Column(name = "userid")
    private String userid;

    @Column(name = "username")
    private String username;

    @Column(name = "password")
    private String password;

    @Column(name = "userps")
    private String userps;

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }

    public String getUserps() {
        return userps;
    }

    public void setUserps(String userps) {
        this.userps = userps;
    }

    public String getUserid() {
        return userid;
    }

    public void setUserid(String userid) {
        this.userid = userid;
    }

    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;
    }
}

发现还是比较好用的，有登录校验，如果没有登录，无法访问一些界面，使用环境是IDEA18.2.4,JDK1.8，工程在下面链接里，欢迎一起学习交流

https://download.csdn.net/download/g313105910/10741590

如果發現無法save數據到數據庫請看下面解決方案

解决方案是：

在pom.xml里添加：

   
        org.springframework
        spring-context
        4.2.5.RELEASE