无数据库版本最简单的登录注册后台系统--springboot版本

简单的springboot 登录注册版本，让你感受springboot和注解的便利性

【准备工作】：postman--便于接口测试，idea社区版本或者旗舰版本，社区版本需要安装plug-in搜索spring assistant就可以。

【建立工程，搭好架构】：如图：

建立User类简单的几个属性

package com.zhangyiyi.chapter1.domain;

public class User {
    private String userName;
    private String phoneNum;
    private String passWd;

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPhoneNum() {
        return phoneNum;
    }

    public void setPhoneNum(String phoneNum) {
        this.phoneNum = phoneNum;
    }

    public String getPassWd() {
        return passWd;
    }

    public void setPassWd(String passWd) {
        this.passWd = passWd;
    }
}

建立LoginController作为拦截用户请求到对应的处理接口，稍后讲解spring mvc的开发步骤

package com.zhangyiyi.chapter1.controller;

import com.zhangyiyi.chapter1.domain.User;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;

@RestController
public class LoginController {
 private List<User> userList;
    public LoginController(){
        super();
        userList=new ArrayList<User>();

    }
    public static Log logger=LogFactory.getLog(LoginController.class);
    @PostMapping(value = "/login")
    public String login(@RequestParam("phonenum") String phoneNum,
                        @RequestParam("passwd") String passWd){
        for(User user:userList){
            if(user.getPassWd().equals(passWd)&&user.getPhoneNum().equals(phoneNum)){
                logger.info("loginpost 方法访问");
                return user.getUserName()+"欢迎登陆";

            }
        }
        return "登录失败";
    }
    @PostMapping(value = "/register")
    public  String register(@RequestParam("phonenum") String phoneNum,
                            @RequestParam("passwd") String passWd,
                            @RequestParam("username") String userName){
        User user=new User();
        user.setPassWd(passWd);
        user.setUserName(userName);
        user.setPhoneNum(phoneNum);
        userList.add(user);
        return userName+"注册成功";

    }
}

入口函数：

package com.zhangyiyi.chapter1;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
public class Chapter1ApplicationTests {


    public static void main(String[] args) {
            SpringApplication.run(Chapter1Application.class, args);
          }

}

删除test的方法，建立main方法，然后开启运行。