java jwt 单点登录_JWT实现单点登录

import com.atguigu.commonutils.JwtUtils;

import com.atguigu.commonutils.MD5;

import com.atguigu.eduservice.entity.UcenterMember;

import com.atguigu.eduservice.entity.vo.RegisterVo;

import com.atguigu.eduservice.mapper.UcenterMemberMapper;

import com.atguigu.eduservice.service.UcenterMemberService;

import com.atguigu.servicebase.exceptionhandler.GuliException;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import org.apache.commons.lang.StringUtils;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.data.redis.core.RedisTemplate;

import org.springframework.stereotype.Service;

/**

*

* 会员表 服务实现类

*

*

* @author testjava

* @since 2020-06-05

*/

@Service

public class UcenterMemberServiceImpl extends ServiceImpl implements UcenterMemberService {

//注入

@Autowired

private RedisTemplate redisTemplate;

//登录的方法

@Override

public String login(UcenterMember member) {

String mobile = member.getMobile();

String password = member.getPassword();

//判断两者是否为空

if (StringUtils.isEmpty(mobile) || StringUtils.isEmpty(password)){

throw new GuliException(20001,”登录失败”);

}

//判断手机号是否正确

QueryWrapper wrapper = new QueryWrapper<>();

wrapper.eq(“mobile”,mobile);

UcenterMember mobilMenber = baseMapper.selectOne(wrapper);

//判断查出来的对象是否为空

if (mobilMenber == null){//没有这个手机号

throw new GuliException(20001,”登录失败手机号不存在”);

}

//判断对应手机号的密码是否正确

//因为存储在数据库中的密码进行了加密， 解决办法：把输入的密码进行加密，在和数据库中的密码比较

//加密方式MD5

if (!MD5.encrypt(password).equals(mobilMenber.getPassword())){

throw new GuliException(20001,”密码错误”);

}

//判断用户是否禁用

if (mobilMenber.getIsDisabled()){

throw new GuliException(20001,”用户名已被禁用”);

}

//登录成功

//生成token字符串，使用JWT做到,传查出来的对象mobilMenber

String jwtToken = JwtUtils.getJwtToken(mobilMenber.getId(), mobilMenber.getNickname());

return jwtToken;

}

//注册

@Override

public void register(RegisterVo registerVo) {

//获取注册的数据

String code = registerVo.getCode();//验证码

String mobile = registerVo.getMobile();//手机号

String nickname = registerVo.getNickname();//昵称

String password = registerVo.getPassword();//密码

//非空判断

if (StringUtils.isEmpty(code) || StringUtils.isEmpty(mobile) || StringUtils.isEmpty(nickname) || StringUtils.isEmpty(password)){

throw new GuliException(20001,”注册失败”);

}

//判断验证码是否正确，跟redis中验证吗是否一样

String rediscode = redisTemplate.opsForValue().get(mobile);

if (!code.equals(rediscode)){

throw new GuliException(20001,”注册失败”);

}

//判断手机号是否重复

QueryWrapper wrapper = new QueryWrapper<>();

wrapper.eq(“mobile”,mobile);

Integer integer = baseMapper.selectCount(wrapper);

if (integer > 0){

throw new GuliException(20001,”注册失败”);

}

//数据添加到数据库中

UcenterMember member = new UcenterMember();

member.setMobile(mobile);

member.setPassword(MD5.encrypt(password));

member.setNickname(nickname);

member.setIsDisabled(false);

member.setAvatar(“http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoj0hHXhgJNOTSOFsS4uZs8x1ConecaVOB8eIl115xmJZcT4oCicvia7wMEufibKtTLqiaJeanU2Lpg3w/132”);

baseMapper.insert(member);

}

@Override

public UcenterMember getOpenIdMember(String openid) {

QueryWrapper wrapper = new QueryWrapper<>();

wrapper.eq(“openid”,openid);

UcenterMember member = baseMapper.selectOne(wrapper);

return member;

}

}

三controller层

packagecom.atguigu.eduservice.controller;importcom.atguigu.commonutils.JwtUtils;importcom.atguigu.commonutils.R;importcom.atguigu.eduservice.entity.UcenterMember;importcom.atguigu.eduservice.entity.vo.RegisterVo;importcom.atguigu.eduservice.service.UcenterMemberService;importorg.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.*;importjavax.servlet.http.HttpServletRequest;/***

* 会员表 前端控制器

*

*

*@authortestjava

*@since2020-06-05*/@RestController

@RequestMapping(“/educenter/member”)

@CrossOriginpublic classUcenterMemberController {

@AutowiredprivateUcenterMemberService memberService;//登录

@PostMapping(“login”)publicR loginUser(@RequestBody UcenterMember member) {//member对象封装手机号和密码//调用service方法实现登录//返回token值，使用jwt生成

String token =memberService.login(member);return R.ok().data(“token”,token);

}//注册

@PostMapping(“register”)publicR registerUser(@RequestBody RegisterVo registerVo) {

memberService.register(registerVo);returnR.ok();

}//根据token获取用户信息

@GetMapping(“getMemberInfo”)publicR getMemberInfo(HttpServletRequest request) {//调用jwt工具类的方法。根据request对象获取头信息，返回用户id

String memberId =JwtUtils.getMemberIdByJwtToken(request);//查询数据库根据用户id获取用户信息

UcenterMember member =memberService.getById(memberId);return R.ok().data(“userInfo”,member);

}

}

四前端调用方法获得token