B2C模式电商案例-用户注册与登录

1、用户注册-短信验证码

1.1分析

1.2后端

创建 SmsController类，调用阿里大鱼工具类，发送短信

package com.czxy.changgou4.controller;import com.aliyuncs.dysmsapi.model.v20170525.SendSmsResponse;
import com.czxy.changgou4.pojo.User;
import com.czxy.changgou4.utils.SmsUtil;
import com.czxy.changgou4.vo.BaseResult;
import org.apache.commons.lang.RandomStringUtils;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;
import java.util.concurrent.TimeUnit;@RestController
@RequestMapping("/sms")
public class SmsController {@Resourceprivate StringRedisTemplate redisTemplate;@PostMappingpublic BaseResult sendSms(@RequestBody User user){long start = System.currentTimeMillis();try {//发送短信//1 生产验证码String code = RandomStringUtils.randomNumeric(4);System.out.println("验证码：" + code);//2 并存放到reids中 , key: "sms_register" + 手机号 ， value：验证码 , 1小时redisTemplate.opsForValue().set( "sms_register" + user.getMobile() , code , 1 , TimeUnit.HOURS);/**///3 发送短信SendSmsResponse smsResponse = SmsUtil.sendSms(user.getMobile(), user.getUsername() , code, "", "");//https://help.aliyun.com/document_detail/55284.html?spm=5176.doc55322.6.557.KvvIJxif("OK".equalsIgnoreCase(smsResponse.getCode())){return BaseResult.ok("发送成功");} else {return BaseResult.error(smsResponse.getMessage());}/*//模拟数据System.out.println("验证码：" + code);return BaseResult.ok("发送成功");*/} catch (Exception e) {long end = System.currentTimeMillis();System.out.println( end - start);return BaseResult.error("发送失败" );}}
}

1.3前端

步骤一：修改apiclient.js，发送短信ajax操作

//发短信

sendSms : ( user )=> {

return axios.post('/web-service/sms', user )

}

步骤二：修改Register.vue页面，给“发送验证码”绑定点击事件 sendSmsFn

<button @click.prevent="sendSmsFn" >

发送验证码<span>5秒</span>

</button>

步骤三：修改Register.vue页面，编写sendSmsFn函数，建议采用 ajax..then()..catch 可以处理异常

sendSmsFn () {

this.$request.sendSms( this.user )

.then(( response )=>{

//发送短信的提示信息

this.userMsg.smsData = response.data

})

.catch(( error )=>{

//错误提示信息

alert( error.message )

})

}

步骤四：修改Register.vue页面，提供变量smsData

userMsg : { //错误提示数据

usernameData : "",

mobileData : "",

smsData : ""

}

步骤五：修改Register.vue页面，显示 smsData提示信息

<p :class="userMsg.smsData.code == 1 ? 'success' : 'error'">{{userMsg.smsData.message}}

</p>

1.4发送验证码倒计时

步骤一：提供3个变量，用于控制倒计时

步骤二：在标签上面控制倒计时的显示

<button :disabled="btnDisabled" @click.prevent="sendSmsFn" >

发送验证码<span v-show="btnDisabled">{{seconds}}秒</span>

</button>

步骤三：发送短信后，开启倒计时控制

sendSmsFn () {this.$request.sendSms( this.user ).then(( response )=>{//发送短信的提示信息this.userMsg.smsData = response.data//按钮不可用this.btnDisabled = true;//倒计时this.timer = setInterval( ()=>{if(this.seconds <= 1){//结束// 重置秒数this.seconds = 5;// 按钮可用this.btnDisabled = false;// 停止定时器clearInterval(this.timer);} else {this.seconds --;}} , 1000);}).catch(( error )=>{//错误提示信息alert( error.message )})}

2、用户注册

2.1：后端

保存前需要再次进行服务端校验
1. 用户名是否注册
2. 手机号是否注册
3. 验证码是否失效
4. 验证码是否错误
密码需要使用 BCrypt进行加密

步骤一：修改UserService接口，添加register方法

/**
* 用户注册
* @param user
* @return
*/
public boolean register(User user) ;

步骤二：完善UserServiceImpl实现类

@Override
public boolean register(User user) {
    //密码加密
    String newPassword = BCrypt.hashpw(user.getPassword());
    user.setPassword(newPassword);

//处理数据
    user.setCreatedAt(new Date());
    user.setUpdatedAt(user.getCreatedAt());

int insert = baseMapper.insert(user);

return insert == 1;
}

步骤三：修改UserController，添加register方法

/**
* 用户注册
* @param user
* @return
*/
@PostMapping("/register")
public BaseResult register(@RequestBody User user){

//服务端校验
    User findUser = userService.findByUsername(user.getUsername());
    if(findUser != null) {
        return BaseResult.error("用户名已经存在");
    }

findUser = userService.findByMobile(user.getMobile());
    if(findUser != null) {
        return BaseResult.error("电话号码已经存在");
    }

//验证码
    String code = stringRedisTemplate.opsForValue().get("sms_register" + user.getMobile());
    //删除redis中的验证码
    stringRedisTemplate.delete("sms_register" + user.getMobile());
    if(code == null) {
        return BaseResult.error("验证码失效");
    }
    if(!code.equals(user.getCode())) {
        return BaseResult.error("验证码不正确");
    }

//注册
    boolean register = userService.register(user);

if(register) {
        return BaseResult.ok("注册成功");
    }
    return BaseResult.error("注册失败");
}

2.2：日期处理

编写 DateMetaObjectHandler 用于处理“创建时间”和“修改日期”

package com.czxy.changgou4.handler;import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;import java.util.Date;@Component
public class DateMetaObjectHandler implements MetaObjectHandler {@Overridepublic void insertFill(MetaObject metaObject) {this.setFieldValByName("createdAt", new Date(), metaObject);this.setFieldValByName("updatedAt", new Date(), metaObject);}@Overridepublic void updateFill(MetaObject metaObject) {this.setFieldValByName("updatedAt", new Date(), metaObject);}
}

完善User JavaBean，设置填充方式

@TableField(value="created_at",fill = FieldFill.INSERT)
private Date createdAt;

@TableField(value="updated_at",fill = FieldFill.INSERT_UPDATE)
private Date updatedAt;

2.3：前端

步骤一：修改 api.js ，添加注册函数

//注册

register : ( user )=> {

return axios.post('/web-service/user/register', user )

}

步骤二：处理表单，验证码input绑定数据，提交按钮绑定事件

步骤三：完善data区域的user数据

步骤四：编写registerFn函数

async registerFn() {

let { data } = await this.$request.register( this.user )

if( data.code == 20000) {

//成功

this.$router.push('/login')

} else {

//失败--与发送验证码使用一个位置显示错误信息

this.userMsg.smsData = data

}

}

3、用户登录

3.1：构建页面：Login.vue

步骤一：创建Login.vue

步骤二：绘制通用模块

<template><div><TopNav></TopNav><div style="clear:both;"></div><HeaderLogo></HeaderLogo><div style="clear:both;"></div><!-- 正文 --><div style="clear:both;"></div><Footer></Footer></div>
</template><script>
import TopNav from '../components/TopNav'
import HeaderLogo from '../components/HeaderLogo'
import Footer from '../components/Footer'
export default {head: {title: '用户登录',link: [{rel:'stylesheet',href:'style/login.css'}],script: []},components : {TopNav,HeaderLogo,Footer},}
</script><style></style>

步骤三：绘制登录表单

<template><div><TopNav></TopNav><div style="clear:both;"></div><HeaderLogo></HeaderLogo><div style="clear:both;"></div><!-- 正文 --><!-- 登录主体部分start --><div class="login w990 bc mt10"><div class="login_hd"><h2>用户登录</h2><b></b></div><div class="login_bd"><div class="login_form fl"><form action="" method="post"><ul><li><label for="">用户名：</label><input type="text" class="txt" name="username" /></li><li><label for="">密码：</label><input type="password" class="txt" name="password" /><a href="">忘记密码?</a></li><li class="checkcode"><label for="">验证码：</label><input type="text"  name="checkcode" /><img src="data:images/checkcode1.jpg" alt="" /><span>看不清？<a href="">换一张</a></span></li><li><label for="">&nbsp;</label><input type="checkbox" class="chb"  /> 保存登录信息</li><li><label for="">&nbsp;</label><input type="submit" value="" class="login_btn" /></li></ul></form><div class="coagent mt15"><dl><dt>使用合作网站登录商城：</dt><dd class="qq"><a href=""><span></span>QQ</a></dd><dd class="weibo"><a href=""><span></span>新浪微博</a></dd><dd class="yi"><a href=""><span></span>网易</a></dd><dd class="renren"><a href=""><span></span>人人</a></dd><dd class="qihu"><a href=""><span></span>奇虎360</a></dd><dd class=""><a href=""><span></span>百度</a></dd><dd class="douban"><a href=""><span></span>豆瓣</a></dd></dl></div></div><div class="guide fl"><h3>还不是商城用户</h3><p>现在免费注册成为商城用户，便能立刻享受便宜又放心的购物乐趣，心动不如行动，赶紧加入吧!</p><a href="regist.html" class="reg_btn">免费注册 >></a></div></div></div><!-- 登录主体部分end --><div style="clear:both;"></div><Footer></Footer></div>
</template><script>
import TopNav from '../components/TopNav'
import HeaderLogo from '../components/HeaderLogo'
import Footer from '../components/Footer'
export default {head: {title: '用户登录',link: [{rel:'stylesheet',href:'style/login.css'}],script: []},components : {TopNav,HeaderLogo,Footer},}
</script><style></style>

3.2：分析

3.3：验证码：生成与显示

步骤一：后端生产验证码，并将用户保存Redis

1存放redis中验证码key格式："login" + 用户名

生成验证码工具类：

package com.czxy.changgou4.controller;import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;import javax.annotation.Resource;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
import java.util.concurrent.TimeUnit;@Controller
@RequestMapping("/verifycode")
public class VerifyCodeController {@Resourceprivate StringRedisTemplate stringRedisTemplate;@GetMappingpublic void verifyCode(String username , HttpServletResponse response ) throws IOException {//字体只显示大写，去掉了1,0,i,o几个容易混淆的字符String VERIFY_CODES = "23456789ABCDEFGHJKLMNPQRSTUVWXYZ";int IMG_WIDTH = 72;int IMG_HEIGTH = 27;Random random = new Random();//创建图片BufferedImage image = new BufferedImage(IMG_WIDTH, IMG_HEIGTH, BufferedImage.TYPE_INT_RGB);//画板Graphics g = image.getGraphics();//填充背景g.setColor(Color.WHITE);g.fillRect(1,1,IMG_WIDTH-2,IMG_HEIGTH-2);g.setFont(new Font("楷体", Font.BOLD,25));StringBuilder sb = new StringBuilder();//写字for(int i = 1 ; i <= 4 ; i ++){//随机颜色g.setColor(new Color(random.nextInt(255),random.nextInt(255),random.nextInt(255)));int len = random.nextInt(VERIFY_CODES.length());String str = VERIFY_CODES.substring(len,len+1);sb.append(str);g.drawString(str, IMG_WIDTH / 6 * i , 22 );}//将验证码存放到redisstringRedisTemplate.opsForValue().set( "login" + username , sb.toString() , 1 , TimeUnit.HOURS);// 生成随机干扰线for (int i = 0; i < 30; i++) {//随机颜色g.setColor(new Color(random.nextInt(255),random.nextInt(255),random.nextInt(255)));int x = random.nextInt(IMG_WIDTH - 1);int y = random.nextInt(IMG_HEIGTH - 1);int x1 = random.nextInt(12) + 1;int y1 = random.nextInt(6) + 1;g.drawLine(x, y, x - x1, y - y1);}//响应到浏览器ImageIO.write(image,"jpeg", response.getOutputStream());}
}

步骤二：点击“换一张”显示验证码

默认不显示验证码

点击“换一张”获得验证码

methods: {

changeVerifyCode() {

// console.info(this)

this.imgSrc = `${this.$axios.defaults.baseURL}/web-service/verifycode?username=${this.user.username}&t=${new Date().getTime()}`

},

}

3.4:通过用户名查询：实现

修改UserController，添加 findByUsername函数

/**
* 通过用户名查询
* @param user
* @return 返回用户对象
*/
@PostMapping("/findByUsername")
public User findByUsername(@RequestBody User user){
    //查询用户
    User findUser = userService.findByUsername( user.getUsername() );
    return findUser;
}

3.5:认证服务：构建项目（changgou4-service-auth）

创建项目

导入pom文件

<dependencies><!--自定义项目--><dependency><groupId>com.czxy.changgou</groupId><artifactId>changgou4_common_auth</artifactId></dependency><!--web起步依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- nacos 客户端 --><dependency><groupId>com.alibaba.nacos</groupId><artifactId>nacos-client</artifactId></dependency><!-- nacos 服务发现 --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!--redis--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency><dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId></dependency><!--swagger2--><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId></dependency><!--    feign    --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency>
</dependencies>

创建yml文件

server:
  port: 8085
spring:
  application:
    name: auth-service
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848   #nacos服务地址

sc:
  jwt:
    secret: sc@Login(Auth}*^31)&czxy% # 登录校验的密钥
    pubKeyPath: D:/rsa/rsa.pub # 公钥地址
    priKeyPath: D:/rsa/rsa.pri # 私钥地址
    expire: 360 # 过期时间,单位分钟

配置启动类

package com.czxy.changgou4;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class CGAuthServiceApplication {public static void main(String[] args) {SpringApplication.run(CGAuthServiceApplication.class, args);}
}

配置类

3.6:认证服务：用户登录后端

步骤一：创建AuthUser 封装对象（与User比较，缺数据库相关注解）

package com.czxy.changgou4.domain;import lombok.Data;import java.util.Date;@Data
public class AuthUser {private Long id;private String username;private String password;private String face;private Integer expriece;private String email;private String mobile;private Date createdAt;private Date updatedAt;private String code;private String password_confirm;
}

步骤二：创建UserFeign，完成远程用户查询功能

package com.czxy.changgou4.feign;import com.czxy.changgou4.domain.AuthUser;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;@FeignClient(value = "web-service",path="/user")
public interface UserFeign {@PostMapping("/findByUsername")public AuthUser findByUsername(@RequestBody AuthUser user);}

步骤三：创建AuthService接口，编写登录方法 login()

package com.czxy.changgou4.service;import com.czxy.changgou4.domain.AuthUser;public interface AuthService {/*** 用户登录* @param user* @return*/public AuthUser login(AuthUser user ) ;
}

步骤四：创建AuthService实现类，并通过BCrypt校验密码

package com.czxy.changgou4.service.impl;import com.czxy.changgou4.domain.AuthUser;
import com.czxy.changgou4.feign.UserFeign;
import com.czxy.changgou4.service.AuthService;
import com.czxy.changgou4.utils.BCrypt;
import org.springframework.stereotype.Service;import javax.annotation.Resource;@Service
public class AuthServiceImpl implements AuthService {@Resourceprivate UserFeign userFeign;/*** 用户登录* @param user* @return*/public AuthUser login(AuthUser user ) {//远程查询用户AuthUser findUser = userFeign.findByUsername(user);if(findUser == null) {return null;}//校验密码是否正确boolean checkpw = BCrypt.checkpw( user.getPassword(), findUser.getPassword());if(checkpw){return findUser;}return null;}}

步骤五：创建AuthController，添加login方法

redis中登录验证码和用户输入的验证码进行匹配

package com.czxy.changgou4.controller;import com.czxy.changgou4.domain.AuthUser;
import com.czxy.changgou4.service.AuthService;
import com.czxy.changgou4.vo.BaseResult;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;@RestController
@RequestMapping("/auth")
public class AuthController {@Resourceprivate AuthService authService;@Resourceprivate StringRedisTemplate stringRedisTemplate;@PostMapping("/login")public BaseResult login(@RequestBody AuthUser authUser) {if (authUser.getUsername() == null) {return BaseResult.error("请输入用户名");}if (authUser.getPassword() == null) {return BaseResult.error("请输入密码");}if (authUser.getCode() == null) {return BaseResult.error("请输入验证码");}//校验验证码，使用后删除String redisCode = stringRedisTemplate.opsForValue().get("login" + authUser.getUsername());//删除验证码，保证验证码的一次性stringRedisTemplate.delete("login" + authUser.getUsername());if (redisCode == null) {return BaseResult.error("无效验证码");}if (!redisCode.equalsIgnoreCase(authUser.getCode())) {return BaseResult.error("验证码错误");}AuthUser loginAuthUser = authService.login(authUser);if (loginAuthUser != null) {return BaseResult.ok("登录成功").append("loginAuthUser",loginAuthUser);}return BaseResult.error("用户名或密码错误");}
}

3.7:认证服务：用户登录前端

步骤一：修改apiclient.js，添加login函数

//登录

login : ( user )=> {

return axios.post('/auth-service/auth/login', user )

}

步骤二：修改Login.vue，给验证码绑定变量

步骤三：修改Login.vue，给提交按钮绑定事件

步骤四：编写loginFn完成登录功能

async loginFn() {

let { data:baseResult } = await this.$request.login(this.user)

if(baseResult.code == 20000) {

sessionStorage.setItem('user',JSON.stringify(loginUser))

//跳转到首页

location.href = '/'

} else {

//失败给出提示

this.errorMsg = baseResult.message

}

},

步骤五：创建首页 ~/pages/index.vue

<template><div><TopNav></TopNav></div>
</template><script>
import TopNav from '../components/TopNav'export default {head: {title: '首页',link: [{rel:'stylesheet',href:'style/index.css'},{rel:'stylesheet',href:'style/bottomnav.css'}],script: [{ type: 'text/javascript', src: 'js/header.js' },{ type: 'text/javascript', src: 'js/index.js' },]},components : {TopNav,},
}
</script><style></style>

3.8:修改 TopNav.vue 组件

分析：完善导航条，根据vuex中的数据，显示不同内容

步骤一：创建 ~/store/index.js ，并编写vuex内容

export const state = () => ({

user: null

})

//通用设置

export const mutations = {

setData( state , obj) {

state[obj.key] = obj.value

}

}

步骤二：页面登录成功，将用户信息保存到vuex中

// 将用户信息保存到vuex中

this.$store.commit('setData', {key:'user',value: data.data })

步骤三：修改顶部导航TopNav.vue

<template><!-- 顶部导航 start --><div class="topnav"><div class="topnav_bd w990 bc"><div class="topnav_left"></div><div class="topnav_right fr"><ul><li v-if="user != null">您好，{{user.username}} 欢迎来到畅购！ <a href="" @click.prevent="logout">退出</a></li><li v-if="user != null" class="line">|</li><li v-if="user == null">[<a href="/login">登录</a>] [<a href="/register">免费注册</a>] </li><li v-if="user == null" class="line">|</li><li v-if="user != null">我的订单</li><li v-if="user != null" class="line">|</li><li>客户服务</li></ul></div></div></div><!-- 顶部导航 end -->
</template><script>
import {mapState,mapMutations} from 'vuex'
export default {mounted() {let userStr = sessionStorage.getItem('user')if(userStr){// 将string数据转换object，并填充到vuex中this.setData({key:'user',value: JSON.parse(userStr)})}},methods: {logout() {sessionStorage.removeItem('user')sessionStorage.removeItem('token')//设置vuex中的数据为空this.setData({key:'user',value: null })this.$router.push('/login')},...mapMutations(['setData'])},computed: {...mapState(['user'])},
}
</script><style></style>

3.9:vuex刷新数据丢失

刷新操作：
- 点击刷新按钮
- 点击回退按钮
- 地址栏直接输入地址
现象：
- vuex在刷新操作后，数据丢失了
解决方案
- 方案1：不是公共组件：页面在pages目录下，可以nuxt.js提供 fetch进行操作。
- 方案2：是公共组件：组件在components目录下，借助第三方进行存储（cookie、localStorage、sessionStorage）
  - 选择1：sessionStorage存放数据，如果vuex中没有，将sessionStorage同步过去。
  - 选择2：vuex中actions模块就可以发送ajax，从而同步数据。
具体操作：
- 如果vuex中没有数据，使用sessionStorage的数据填充vuex。
- 修改TopNav.vue页面

<template><!-- 顶部导航 start --><div class="topnav"><div class="topnav_bd w990 bc"><div class="topnav_left"></div><div class="topnav_right fr"><ul><li v-if="user!=null">您好，{{user.username}}欢迎来到畅购！</li><li v-if="user==null">[<nuxt-link to="/Login">登录</nuxt-link>]</li><li v-if="user==null">[<nuxt-link to="/Register">免费注册</nuxt-link>]</li><li v-if="user!=null">[<nuxt-link to="/Login">退出</nuxt-link>]</li><li v-if="user!=null" class="line">|</li><li v-if="user!=null">我的订单</li><li class="line">|</li><li>客户服务</li></ul></div></div></div><!-- 顶部导航 end -->
</template><script>
import {mapState, mapMutations} from 'vuex'
export default {computed: { //计算属性整合vuex// user() {//   return this.$store.state.user// }...mapState(['user'])},mounted() {// 从sessionStorage获得信息，如果存在，直接添加vuex中let userStr = sessionStorage.getItem('user')if(userStr) {let user = JSON.parse(userStr)//将数据存放到vuex中this.setData({key:'user',value: user })}},methods: {...mapMutations(['setData']),},
}
</script><style></style>

4、整合JWT

4.1整合分析

生成token：在用户登录成功，根据用户的登录信息，生成登录标识token，并返回给浏览器。
使用token：完善ajax请求，在请求之前添加请求头，设置token
校验token：在网关中编写过滤器，进行请求进行拦截，并校验token。
- 白名单：在白名单中的请求，是不需要token可以直接访问的。

4.2生成Token

用户登录成功，生成token，并将token响应给浏览器。（认证服务 AuthService）

步骤一：查看 application.yml文件，确定 jwt配置信息

步骤二：创建JwtProperties文件，用于加载sc.jwt配置信息

package com.czxy.changgou4.config;import com.czxy.changgou4.utils.RsaUtils;
import lombok.Data;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;import javax.annotation.PostConstruct;
import java.io.File;
import java.security.PrivateKey;
import java.security.PublicKey;@Data
@ConfigurationProperties(prefix = "sc.jwt")
@Component
public class JwtProperties {private String secret; // 密钥private String pubKeyPath;// 公钥private String priKeyPath;// 私钥private int expire;// token过期时间private PublicKey publicKey; // 公钥private PrivateKey privateKey; // 私钥private static final Logger logger = LoggerFactory.getLogger(JwtProperties.class);@PostConstructpublic void init(){try {File pubFile = new File(this.pubKeyPath);File priFile = new File(this.priKeyPath);if( !pubFile.exists() || !priFile.exists()){RsaUtils.generateKey( this.pubKeyPath ,this.priKeyPath , this.secret);}this.publicKey = RsaUtils.getPublicKey( this.pubKeyPath );this.privateKey = RsaUtils.getPrivateKey( this.priKeyPath );} catch (Exception e) {throw new RuntimeException(e.getMessage());}}

步骤三：修改AuthController，注入JwtProperties，并使用JwtUtils生成token

package com.czxy.changgou4.controller;import com.czxy.changgou4.config.JwtProperties;
import com.czxy.changgou4.domain.AuthUser;
import com.czxy.changgou4.service.AuthService;
import com.czxy.changgou4.utils.JwtUtils;
import com.czxy.changgou4.vo.BaseResult;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;@RestController
@RequestMapping("/auth")
public class AuthController {@Resourceprivate AuthService authService;@Resourceprivate StringRedisTemplate stringRedisTemplate;@Resourceprivate JwtProperties jwtProperties;@PostMapping("/login")public BaseResult login(@RequestBody AuthUser authUser) {if (authUser.getUsername() == null) {return BaseResult.error("请输入用户名");}if (authUser.getPassword() == null) {return BaseResult.error("请输入密码");}if (authUser.getCode() == null) {return BaseResult.error("请输入验证码");}//校验验证码，使用后删除String redisCode = stringRedisTemplate.opsForValue().get("login" + authUser.getUsername());//删除验证码，保证验证码的一次性stringRedisTemplate.delete("login" + authUser.getUsername());if (redisCode == null) {return BaseResult.error("无效验证码");}if (!redisCode.equalsIgnoreCase(authUser.getCode())) {return BaseResult.error("验证码错误");}AuthUser loginAuthUser = authService.login(authUser);if (loginAuthUser != null) {String token = JwtUtils.generateToken(loginAuthUser, jwtProperties.getExpire(), jwtProperties.getPrivateKey());return BaseResult.ok("登录成功").append("loginAuthUser",loginAuthUser).append("token",token);}return BaseResult.error("用户名或密码错误");}
}

4.3使用Token

步骤一：登录成功后保存token，修改 Login.vue页面

async loginFn() {

let { data:baseResult } = await this.$request.login(this.user)

if(baseResult.code == 20000) {

let loginUser = baseResult.other.loginAuthUser

sessionStorage.setItem('loginUser',JSON.stringify(loginUser))

//保存token

sessionStorage.setItem('token',baseResult.other.token)

//跳转到首页

location.href = '/'

} else {

//失败给出提示

this.errorMsg = baseResult.message

this.changeVerifyCode()

}

},

步骤二：请求是自动携带token，修改apiclient.js，将token添加到请求头

//参考 https://axios.nuxtjs.org/helpers// 增强$axios,每一个请求都携带tokenlet token = sessionStorage.getItem('token')if(token) {// 添加一个固定的请求头 Adds header：`Authorizatino: 123` to all requests$axios.setToken(token)}

步骤三：检查 nuxt.conf.js，插件模式改成“client”

否则抛异常“sessionStorage is not defined”

plugins: [

{ src: '~plugins/apiclient.js', mode: 'client' }

],

4.4校验token(在网关项目处完成）

步骤一：修改application.yml添加jwt配置

#自定义内容
sc:
  jwt:
    secret: sc@Login(Auth}*^31)&czxy% # 登录校验的密钥
    pubKeyPath: D:/rsa/rsa.pub # 公钥地址
    priKeyPath: D:/rsa/rsa.pri # 私钥地址
    expire: 360 # 过期时间,单位分钟

步骤二：创建 JwtProperties，用于加载配置文件

package com.czxy.changgou4.config;import com.czxy.changgou4.utils.RsaUtils;
import lombok.Data;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;import javax.annotation.PostConstruct;
import java.io.File;
import java.security.PrivateKey;
import java.security.PublicKey;@Data
@ConfigurationProperties(prefix = "sc.jwt")
public class JwtProperties {private String secret; // 密钥private String pubKeyPath;// 公钥private String priKeyPath;// 私钥private int expire;// token过期时间private PublicKey publicKey; // 公钥private PrivateKey privateKey; // 私钥private static final Logger logger = LoggerFactory.getLogger(JwtProperties.class);@PostConstructpublic void init(){try {File pubFile = new File(this.pubKeyPath);File priFile = new File(this.priKeyPath);if( !pubFile.exists() || !priFile.exists()){RsaUtils.generateKey( this.pubKeyPath ,this.priKeyPath , this.secret);}this.publicKey = RsaUtils.getPublicKey( this.pubKeyPath );this.privateKey = RsaUtils.getPrivateKey( this.priKeyPath );} catch (Exception e) {throw new RuntimeException(e.getMessage());}}}

步骤三：编写过滤器，对所有路径进行拦截

package com.czxy.changgou4.filter;import com.czxy.changgou4.config.FilterProperties;
import com.czxy.changgou4.config.JwtProperties;
import com.czxy.changgou4.pojo.User;
import com.czxy.changgou4.utils.JwtUtils;
import com.czxy.changgou4.utils.RsaUtils;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;import javax.annotation.Resource;
import java.nio.charset.StandardCharsets;@Component
public class LoginFilter implements GlobalFilter, Ordered {@Resourceprivate JwtProperties jwtProperties;@Overridepublic Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {//1 获得请求路径ServerHttpRequest request = exchange.getRequest();String path = request.getURI().getPath();System.out.println(path);//2 白名单放行//3 获得tokenString token = request.getHeaders().getFirst("Authorization");//4 校验tokentry {JwtUtils.getObjectFromToken(token, RsaUtils.getPublicKey(jwtProperties.getPubKeyPath()), User.class);return chain.filter(exchange);} catch (Exception e) {ServerHttpResponse response = exchange.getResponse();response.setStatusCode(HttpStatus.UNAUTHORIZED);response.getHeaders().add("Content-Type","application/json;charset=UTF-8");DataBuffer wrap = response.bufferFactory().wrap("没有权限".getBytes(StandardCharsets.UTF_8));return exchange.getResponse().writeWith(Flux.just(wrap));}}@Overridepublic int getOrder() {return 1;}
}

步骤四：修改前端 apiclient.js 文件，用于处理401异常

//异常处理：401

$axios.onError(error => {

if(error.response.status === 401) {

//重定向

redirect('/Login')

}

})

api.js 完整代码

var axios = null

export default ({ $axios, redirect }, inject) => {

//参考 https://axios.nuxtjs.org/helpers

// 增强$axios,每一个请求都携带token

let token = sessionStorage.getItem('token')

if(token) {

// 添加一个固定的请求头 Adds header：`Authorizatino: 123` to all requests

$axios.setToken(token)

}

//异常处理：401

$axios.onError(error => {

if(error.response.status === 401) {

//重定向

redirect('/Login')

}

})

//赋值

axios = $axios

//4) 将自定义函数交于nuxt

// 使用方式1：在vue中，this.$request.xxx()

// 使用方式2：在nuxt的asyncData中，content.app.$request.xxx()

inject('request', request)

}

4.5白名单

不需要拦截的资源都配置到yml文件中，在过滤器直接放行

步骤一：修改application.yml文件

#自定义内容
sc:jwt:secret: sc@Login(Auth}*^31)&czxy% # 登录校验的密钥pubKeyPath: D:/rsa/rsa.pub # 公钥地址priKeyPath: D:/rsa/rsa.pri # 私钥地址expire: 360 # 过期时间,单位分钟filter:allowPaths:- /checkusername- /checkmobile- /sms- /register- /login- /verifycode- /categorys- /news- /brands- /specifications- /search- /goods- /comments- swagger- /api-docs

步骤二：创建FilterProperties配置文件，用于存放允许放行的路径

package com.czxy.changgou4.config;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;

import java.util.List;

@Data
@ConfigurationProperties(prefix="sc.filter")
public class FilterProperties {

//允许访问路径集合
private List<String> allowPaths;

步骤三：修改 LoginFilter，放行名单中配置的路径

package com.czxy.changgou4.filter;import com.czxy.changgou4.config.FilterProperties;
import com.czxy.changgou4.config.JwtProperties;
import com.czxy.changgou4.pojo.User;
import com.czxy.changgou4.utils.JwtUtils;
import com.czxy.changgou4.utils.RsaUtils;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;import javax.annotation.Resource;
import java.nio.charset.StandardCharsets;@Component
//2.1 加载JWT配置类
@EnableConfigurationProperties({FilterProperties.class} )       //加载配置类
public class LoginFilter implements GlobalFilter, Ordered {@Resourceprivate FilterProperties filterProperties;@Resourceprivate JwtProperties jwtProperties;@Overridepublic Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {//1 获得请求路径ServerHttpRequest request = exchange.getRequest();String path = request.getURI().getPath();System.out.println(path);//2 白名单放行for (String allowPath  : filterProperties.getAllowPaths()) {//判断包含if(path.contains(allowPath)){return chain.filter(exchange);}}//3 获得tokenString token = request.getHeaders().getFirst("Authorization");//4 校验tokentry {JwtUtils.getObjectFromToken(token, RsaUtils.getPublicKey(jwtProperties.getPubKeyPath()), User.class);return chain.filter(exchange);} catch (Exception e) {ServerHttpResponse response = exchange.getResponse();response.setStatusCode(HttpStatus.UNAUTHORIZED);response.getHeaders().add("Content-Type","application/json;charset=UTF-8");DataBuffer wrap = response.bufferFactory().wrap("没有权限".getBytes(StandardCharsets.UTF_8));return exchange.getResponse().writeWith(Flux.just(wrap));}}@Overridepublic int getOrder() {return 1;}
}