SpringBoot整合SSO(single sign on)单点登录
1、单点登录三种常见的方式
(1)Session广播机制(Session复制)
(2)使用Cookie+Redis实现
(3)使用token实现
2、单点登录介绍
举例:
(1)引入jwt依赖
<!-- JWT--> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId> </dependency>
(2)创建JWTUtils工具类
public class JwtUtils { //token过期时间 public static final long EXPIRE = 1000 * 60 * 60 * 24; //秘钥 public static final String APP_SECRET = "ukc8BDbRigUDaY6pZFfWus2jZWLPHO"; public static String getJwtToken(String id, String nickname){ String JwtToken = Jwts.builder() //设置头信息 .setHeaderParam("typ", "JWT") .setHeaderParam("alg", "HS256") .setSubject("user") .setIssuedAt(new Date()) //设置过期时间 .setExpiration(new Date(System.currentTimeMillis() + EXPIRE)) //设置token主体部分(这里使用id和nickname作为主体部分) .claim("id", id) .claim("nickname", nickname) //加密方式 .signWith(SignatureAlgorithm.HS256, APP_SECRET) .compact(); return JwtToken; } /** * 判断token是否存在与有效(直接通过APP_SECRET解析token) * @param jwtToken * @return */ public static boolean checkToken(String jwtToken) { if(StringUtils.isEmpty(jwtToken)) return false; try { Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken); } catch (Exception e) { e.printStackTrace(); return false; } return true; } /** * 判断token是否存在与有效(通过获取请求头信息获取token再使用APP_SECRET解析token) * @param request * @return */ public static boolean checkToken(HttpServletRequest request) { try { String jwtToken = request.getHeader("token"); if(StringUtils.isEmpty(jwtToken)) return false; Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken); } catch (Exception e) { e.printStackTrace(); return false; } return true; } /** * 根据token字符串获取用户id(取出有效载荷中的用户信息) * @param request * @return */ public static String getMemberIdByJwtToken(HttpServletRequest request) { String jwtToken = request.getHeader("token"); if(StringUtils.isEmpty(jwtToken)) return ""; Jws<Claims> claimsJws = Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken); Claims claims = claimsJws.getBody(); return (String)claims.get("id"); } }
3、单点登录实现
项目目录结构
UcenterMemberController
@RestController @RequestMapping("/user/") @CrossOrigin public class UcenterMemberController { @Autowired private UcenterMemberService ucenterMemberService; //登录 @PostMapping("login") public ResponseResult login(@RequestBody MobileLoginRequest request) { String token = ucenterMemberService.login(request); return ResponseResult.success().data("token", token); } //注册 @PostMapping("register") public ResponseResult register(@RequestBody RegisterRequest request) { ucenterMemberService.register(request); return ResponseResult.success().message("注册成功"); } //根据token获取用户信息 @GetMapping("getUserInfo") public ResponseResult getUserInfo(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 id = JwtUtils.getMemberIdByJwtToken(request); //根据用户id查询用户 UcenterMember member = ucenterMemberService.getById(id); return ResponseResult.success().data("userInfo", member); } }
ServiceImpl
@Service public class UcenterMemberServiceImpl extends ServiceImpl<UcenterMemberMapper, UcenterMember> implements UcenterMemberService { @Autowired private StringRedisTemplate redisTemplate; //登录 @Override public String login(MobileLoginRequest request) { String phone = request.getPhone(); String password = request.getPassword(); if (StrUtil.isBlank(phone) || StrUtil.isBlank(password)) { throw new GuliException(200001, "请输入用户名或者密码"); } //根据输入的手机号码查找该用户信息 UcenterMember ucenterByPhone = this.baseMapper.selectOne(new LambdaQueryWrapper<UcenterMember>().eq(UcenterMember::getMobile, phone)); if (ucenterByPhone == null) { throw new GuliException(200002, "该用户名不存在"); } //如果用户存在比对数据库密码和用户输入的密码 if (!MD5Util.encrypt(password).equals(ucenterByPhone.getPassword())) { throw new GuliException(200003, "密码输入错误"); } String token = JwtUtils.getJwtToken(ucenterByPhone.getId(), ucenterByPhone.getNickname()); return token; } //注册 @Override public void register(RegisterRequest request) { String phone = request.getPhone(); String password = request.getPassword(); String nickName = request.getNickName(); String code = request.getCode(); if (StrUtil.isBlank(phone) || StrUtil.isBlank(password) || StrUtil.isBlank(nickName) || StrUtil.isBlank(code)) { throw new GuliException(200001, "请填写相关信息"); } //判断手机号是否重复 Integer count = baseMapper.selectCount(new LambdaQueryWrapper<UcenterMember>().eq(UcenterMember::getMobile, phone)); if (count > 0) { throw new GuliException(200001, "账号已经存在请重新输入"); } //验证code String redisCode = redisTemplate.opsForValue().get(phone); if (StrUtil.isBlank(redisCode)) { throw new GuliException(200001, "验证码已经过期,请重新获取"); } if (!redisCode.equals(code)) { throw new GuliException(200001, "验证码错误"); } UcenterMember ucenterByPhone = new UcenterMember(); ucenterByPhone.setMobile(phone); ucenterByPhone.setPassword(MD5Util.encrypt(password)); ucenterByPhone.setNickname(nickName); ucenterByPhone.setIsDisabled(false); int insert = baseMapper.insert(ucenterByPhone); if(insert<=0){ throw new GuliException(20001,"注册失败"); } } }
MD5加密算法工具类
public final class MD5Util { public static String encrypt(String strSrc) { try { char hexChars[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}; byte[] bytes = strSrc.getBytes(); MessageDigest md = MessageDigest.getInstance("MD5"); md.update(bytes); bytes = md.digest(); int j = bytes.length; char[] chars = new char[j * 2]; int k = 0; for (int i = 0; i < bytes.length; i++) { byte b = bytes[i]; chars[k++] = hexChars[b >>> 4 & 0xf]; chars[k++] = hexChars[b & 0xf]; } return new String(chars); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); throw new RuntimeException("MD5加密出错!!+" + e); } } public static void main(String[] args) { System.out.println(MD5Util.encrypt("111111")); } }
4、登录完成后在前端界面展示用户信息
(1)第一、二、四步:登录的方法(记得npm install js-cookie)
//登录的方法 submitLogin() { //第一步 调用接口进行登录,返回token字符串 loginApi.submitLoginUser(this.user) .then(response => { //第二步 获取token字符串放到cookie里面 //第一个参数cookie名称,第二个参数值,第三个参数作用范围 cookie.set('user_token',response.data.data.token,{domain: 'localhost'}) //第四步 调用接口 根据token获取用户信息,为了首页面显示 loginApi.getLoginUserInfo() .then(response => { this.loginInfo = response.data.data.userInfo //获取返回用户信息,放到cookie里面(主页在cookie中获取用户信息进行展示) cookie.set('user_info',this.loginInfo,{domain: 'localhost'}) //跳转页面 window.location.href = "/"; }) }) },
(2)第三步:在request.js中编写前端请求拦截器(发送请求携带token)
// 创建axios实例 const service = axios.create({ baseURL: process.env.BASE_API, // api 的 base_url timeout: 5000 // 请求超时时间 }) // request拦截器 service.interceptors.request.use( config => { if (cookie.get('user_token')) { config.headers['token'] = cookie.get('user_token') // 让每个请求携带自定义token 请根据实际情况自行修改 } return config }, error => { // Do something with request error console.log(error) // for debug Promise.reject(error) } )
(3)第五步:主页显示用户信息(从cookie中获取用户信息)
//创建方法,从cookie获取用户信息 showInfo() { //从cookie获取用户信息 var userStr = cookie.get('guli_ucenter') // 把字符串转换json对象(js对象),因为后端传过来的是"{'name','lucy','age':18}"的格式 if(userStr) { this.loginInfo = JSON.parse(userStr) } }
显示用户信息(根据userInfo中id来判断)
<ul class="h-r-login"> //cookie中没有用户信息,显示登录和注册 <li v-if="!loginInfo.id" id="no-login"> <a href="/login" rel="external nofollow" title="登录"> <em class="icon18 login-icon"> </em> <span class="vam ml5">登录</span> </a> | <a href="/register" rel="external nofollow" title="注册"> <span class="vam ml5">注册</span> </a> </li> //cookie中有用户信息,显示用户头像、昵称和退出 <li v-if="loginInfo.id" id="is-login-two" class="h-r-user"> <a href="/ucenter" rel="external nofollow" title> <img :src="loginInfo.avatar" width="30" height="30" class="vam picImg" alt > <span id="userName" class="vam disIb">{{ loginInfo.nickname }}</span> </a> <a href="javascript:void(0);" rel="external nofollow" title="退出" @click="logout()" class="ml5">退出</a> </li> </ul>
退出登录,清空cookie中的token和用户信息
//退出 logout() { //清空cookie值 cookie.set('user_token','',{domain: 'localhost'}) cookie.set('user_info','',{domain: 'localhost'}) //回到首页面 window.location.href = "/"; } }
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