尚硅谷谷粒学院学习笔记9--前台用户登录,注册,整合jwt,微信登录

用户登录业务

单点登录(Single Sign On),简称SSO. 用户只需要登陆一次就可以访问所有相互信任的应用系统

单点登录三种常见方式

  1. session广播机制实现
  2. 使用redis+cookie实现
  3. 使用token实现

session广播机制实现

其实就是session复制,从一个模块登录后,存入session复制到其他模块中,但是复制会消耗资源
适合模块数小的项目

使用redis+cookie实现

在项目中任何一个模块登录后,把数据存放到两个地方
1.redis 在key:生成唯一随机值(is,用户id等等),在value:用户数据
2.cookie:把redis里面生成key值放到cookie里面

访问项目其他模块,发送请求带着cookie进行发送,获取cookie值,拿着cookie做事,
把cookie获取值,到redis进行查询,根据key进行查询,如果查询到数据就是登陆

使用token实现

在项目某个模块进行登陆,登陆后,按照某种规则生成字符串,把登陆之后用户包含到生成字符串里面,把字符串返回
1.可以把字符串通过cookie返回
2.可以把支持通过地址栏返回

在去访问项目其他模块,每次访问在地址栏都带着生成字符串,在访问模块你获取地址栏字符串,根据字符串获取用户信息,如果获取到就是登陆

在common_utils模块中添加jwt工具依赖

		<dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>

创建JWT工具类

package com.atguigu.commonutils.utils;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jws;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import java.util.Date;

/**
 * @author helen
 * @since 2019/10/16
 */
public class JwtUtils {
    
    

    public static final long EXPIRE = 1000 * 60 * 60 * 24;
    public static final String APP_SECRET = "ukc8BDbRigUDaY6pZFfWus2jZWLPHO";

    //生成token字符串的方法
    public static String getJwtToken(String id, String nickname){
    
    

        String JwtToken = Jwts.builder()
                .setHeaderParam("typ", "JWT")
                .setHeaderParam("alg", "HS256")
                .setSubject("guli-user")
                .setIssuedAt(new Date())
                .setExpiration(new Date(System.currentTimeMillis() + EXPIRE))
                .claim("id", id)//设置token主题部分,存储用户信息
                .claim("nickname", nickname)
                .signWith(SignatureAlgorithm.HS256, APP_SECRET)
                .compact();

        return JwtToken;
    }

    /**
     * 判断token是否存在与有效
     * @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
     * @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获取会员id
     * @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");
    }
}


新建短信微服务

在service模块下创建子模块service-msm

创建controller和service代码

启动类

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
@ComponentScan("com.atguigu")
public class MsmApplication {
    
    
    public static void main(String[] args) {
    
    
        SpringApplication.run(MsmApplication.class,args);
    }
}

配置文件

# 服务端口
server.port=8005
# 服务名
spring.application.name=service-msm

# mysql数据库连接
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/gulischool?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=123456

# 环境设置:dev、test、prod
spring.profiles.active=dev

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

spring.redis.host=123.57.252.81
spring.redis.port=6379
spring.redis.database= 0
spring.redis.timeout=1800000

spring.redis.lettuce.pool.max-active=20
spring.redis.lettuce.pool.max-wait=-1
#最大阻塞等待时间(负数表示没限制)
spring.redis.lettuce.pool.max-idle=5
spring.redis.lettuce.pool.min-idle=0
#最小空闲

#返回json的全局时间格式
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8


#mybatis日志
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

在service-msm的pom中引入依赖

	<dependencies>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-core</artifactId>
        </dependency>
    </dependencies>

编写controller,根据手机号发送短信

生成验证码工具类

package com.atguigu.msmservice.utils;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Random;

/**
 * 获取随机数
 * 
 * @author qianyi
 *
 */
public class RandomUtil {
    
    

	private static final Random random = new Random();

	private static final DecimalFormat fourdf = new DecimalFormat("0000");

	private static final DecimalFormat sixdf = new DecimalFormat("000000");

	public static String getFourBitRandom() {
    
    
		return fourdf.format(random.nextInt(10000));
	}

	public static String getSixBitRandom() {
    
    
		return sixdf.format(random.nextInt(1000000));
	}

	/**
	 * 给定数组,抽取n个数据
	 * @param list
	 * @param n
	 * @return
	 */
	public static ArrayList getRandom(List list, int n) {
    
    

		Random random = new Random();

		HashMap<Object, Object> hashMap = new HashMap<Object, Object>();

		// 生成随机数字并存入HashMap
		for (int i = 0; i < list.size(); i++) {
    
    

			int number = random.nextInt(100) + 1;

			hashMap.put(number, i);
		}

		// 从HashMap导入数组
		Object[] robjs = hashMap.values().toArray();

		ArrayList r = new ArrayList();

		// 遍历数组并打印数据
		for (int i = 0; i < n; i++) {
    
    
			r.add(list.get((int) robjs[i]));
			System.out.print(list.get((int) robjs[i]) + "\t");
		}
		System.out.print("\n");
		return r;
	}
}

@RestController
@CrossOrigin
@RequestMapping("/edumsm/msm")
public class MsmController {
    
    

    @Autowired
    private MsmService msmService;

    @Autowired
    private RedisTemplate<String,String> redisTemplate;
    //发送短信的方法
    @GetMapping("send/{phone}")
    public ResultVo sendMsm(@RequestParam String phone){
    
    
        //先从redis获取验证码,如果获取到直接返回
        String code= redisTemplate.opsForValue().get(phone);
        if(!StringUtils.isEmpty(code)){
    
    
            return ResultVo.ok();
        }
        //如果redis获取不到,进行阿里云发送

        //生成随机值,传递阿里云进行发送
        code= RandomUtil.getFourBitRandom();
        HashMap<Object, Object> param = new HashMap<>();
        param.put("code",code);
        //调用service发送短信的方法
        boolean isSend=msmService.send(param,phone);
        if(isSend){
    
    
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return ResultVo.ok();
        }
        else{
    
    
            return ResultVo.error().message("短信发送失败");
        }


    }
}

@Override
    public boolean send(HashMap<Object, Object> param, String phone) {
    
    
        if(StringUtils.isEmpty(phone)){
    
    
            return false;
        }
        DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou", "<accessKeyId>", "<accessSecret>");//自己账号的AccessKey信息
        IAcsClient client = new DefaultAcsClient(profile);

        CommonRequest request = new CommonRequest();
        request.setSysMethod(MethodType.POST);
        request.setSysDomain("dysmsapi.aliyuncs.com");//短信服务的服务接入地址
        request.setSysVersion("2017-05-25");//API的版本号
        request.setSysAction("SendSms");//API的名称
        request.putQueryParameter("PhoneNumbers", "1503871****");//接收短信的手机号码
        request.putQueryParameter("SignName", "阿里大于测试专用");//短信签名名称
        request.putQueryParameter("TemplateCode", "SMS_209335004");//短信模板ID
        request.putQueryParameter("TemplateParam", JSONObject.toJSONString(param));//短信模板变量对应的实际值
        try {
    
    
            CommonResponse response = client.getCommonResponse(request);
            System.out.println(response.getData());
            boolean success = response.getHttpResponse().isSuccess();
            return success;
        } catch (ServerException e) {
    
    
            e.printStackTrace();
        } catch (ClientException e) {
    
    
            e.printStackTrace();
        }
        return false;
    }

登录和注册

在service模块下创建子模块service-ucenter

使用代码生成器生成代码

创建ucenter_member表

配置文件

# 服务端口
server.port=8006
# 服务名
spring.application.name=service-ucenter

# 环境设置:dev、test、prod
spring.profiles.active=dev

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
# mysql数据库连接
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/gulischool?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=123456

spring.redis.host=123.57.252.81
spring.redis.port=6379
spring.redis.database= 0
spring.redis.timeout=1800000
spring.redis.lettuce.pool.max-active=20
spring.redis.lettuce.pool.max-wait=-1
#最大阻塞等待时间(负数表示没限制)
spring.redis.lettuce.pool.max-idle=5
spring.redis.lettuce.pool.min-idle=0
#最小空闲

#返回json的全局时间格式
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8

#配置mapper xml文件的路径
mybatis-plus.mapper-locations=classpath:com/atguigu/educenter/mapper/xml/*.xml

#mybatis日志
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

创建启动类

@SpringBootApplication
@ComponentScan({
    
    "com.atguigu"})
@MapperScan("com.atguigu.educenter.mapper")
public class UcenterApplication {
    
    
    public static void main(String[] args) {
    
    
        SpringApplication.run(UcenterApplication.class,args);
    }
}

RegisterVo用于数据封装

@Data

@ApiModel(value="注册对象", description="注册对象")
public class RegisterVo {
    
    

    @ApiModelProperty(value = "昵称")
    private String nickname;

    @ApiModelProperty(value = "手机号")
    private String mobile;

    @ApiModelProperty(value = "密码")
    private String password;

    @ApiModelProperty(value = "验证码")
    private String code;
}

创建controller编写登录和注册接口

@RestController
@CrossOrigin
@RequestMapping("/educenter/member")
public class UcenterMemberController {
    
    

    @Autowired
    private UcenterMemberService memberService;

    //登录
    @PostMapping("/login")
    public ResultVo login(@RequestBody UcenterMember member){
    
    
        //调用service方法实现登录
        //返回token值,使用jwt生成
        String token=memberService.login(member);
        return ResultVo.ok().data("token",token);
    }

    //注册
    @PostMapping("register")
    public ResultVo register(@RequestBody RegisterVo registerVo){
    
    
        memberService.register(registerVo);
        return ResultVo.ok();

    }

    //根据token获取用户信息
    @GetMapping("getMemberInfo")
    public ResultVo getMemberInfo(HttpServletRequest request){
    
    
        //调用jwt工具类方法,根据request对象获取头信息,返回用户id
        String id = JwtUtils.getMemberIdByJwtToken(request);
        //查询数据库用户id获取用户信息
        UcenterMember member = memberService.getById(id);

        return ResultVo.ok().data("userIno",member);
    }
}

创建service接口和实现类

@Service
public class UcenterMemberServiceImpl extends ServiceImpl<UcenterMemberMapper, UcenterMember> implements UcenterMemberService {
    
    


    @Autowired
    private RedisTemplate<String,String>  redisTemplate;
    //登录
    @Override
    public String login(UcenterMember member) {
    
    
        String mobile = member.getMobile();
        String password = member.getPassword();

        //判断手机号和密码是否为空
        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<UcenterMember> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("mobile",mobile);
        UcenterMember ucenterMember = baseMapper.selectOne(queryWrapper);
        //判断查询对象是否为空
        if(ucenterMember==null){
    
    
            //没有这个手机号
            throw new GuliException(20001,"登录失败");

        }
        //判断密码
        //把输入的密码进行加密,再和数据库密码进行比较
        if(!MD5.encrypt(password).equals(ucenterMember.getPassword())){
    
    
            throw new GuliException(20001,"登录失败");
        }

        //判断用户是否禁用
        if(ucenterMember.getIsDisabled()){
    
    
            throw new GuliException(20001,"登录失败");
        }

        //登录成功
        //生成token字符串,使用jwt工具类
        String jwtToken = JwtUtils.getJwtToken(ucenterMember.getId(), ucenterMember.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(mobile) || StringUtils.isEmpty(password) || StringUtils.isEmpty(code)||StringUtils.isEmpty(nickname)){
    
    
            throw new GuliException(20001,"注册失败");
        }

        //判断验证码
        //获取redis验证码
        String rediscode = redisTemplate.opsForValue().get(mobile);
        if(!code.equals(rediscode)){
    
    
            throw new GuliException(20001,"注册失败");
        }

        //判断手机是否重复,表里面存在相同手机号不进行添加
        QueryWrapper<UcenterMember> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("mobile",mobile);
        Integer count = baseMapper.selectCount(queryWrapper);
        if(count>0){
    
    
            throw new GuliException(20001,"注册失败");
        }

        UcenterMember ucenterMember = new UcenterMember();
        ucenterMember.setMobile(mobile);
        ucenterMember.setNickname(nickname);
        ucenterMember.setPassword(MD5.encrypt(password));
        ucenterMember.setIsDisabled(false);
        ucenterMember.setAvatar("https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif");
        baseMapper.insert(ucenterMember);
    }


}

前端

安装element-ui 和 vue-qriously

npm install element-ui
npm install vue-qriously

修改配置文件 nuxt-swiper-plugin.js,使用插件

nuxt-swiper-plugin.js

import Vue from 'vue'
import VueAwesomeSwiper from 'vue-awesome-swiper/dist/ssr'
import VueQriously from 'vue-qriously'
import ElementUI from 'element-ui' //element-ui的全部组件
import 'element-ui/lib/theme-chalk/index.css' //element-ui的css
Vue.use(VueAwesomeSwiper)
Vue.use(ElementUI) //使用elementUI
Vue.use(VueQriously)

在layouts创建布局页面

sign.vue

<template>
  <div class="sign">
    <!--标题-->
    <div class="logo">
      <img src="~/assets/img/logo.png" alt="logo">
    </div>
    <!--表单-->
    <nuxt/>
  </div>
</template>

修改layouts文件夹里面default.vue页面,修改登录和注册超链接地址

在这里插入图片描述

在api文件夹中创建注册的js文件,定义接口

register.js

import request from '@/utils/request'

export default {
    
    
  //根据手机号发验证码
  sendCode(phone) {
    
    
    return request({
    
    
      url: `/edumsm/msm/send/${
    
    phone}`,
      method: 'get'
    })
  },

  //注册的方法
  registerMember(formItem) {
    
    
    return request({
    
    
      url: `/educenter/member/register`,
      method: 'post',
      data: formItem
    })
  }

}

在pages文件夹下,创建注册和登录页面

register.vue

<template>
  <div class="main">
    <div class="title">
      <a href="/login">登录</a>
      <span>·</span>
      <a class="active" href="/register">注册</a>
    </div>

    <div class="sign-up-container">
      <el-form ref="userForm" :model="params">
        <el-form-item
          class="input-prepend restyle"
          prop="nickname"
          :rules="[
            {
    
     required: true, message: '请输入你的昵称', trigger: 'blur' },
          ]"
        >
          <div>
            <el-input
              type="text"
              placeholder="你的昵称"
              v-model="params.nickname"
            />
            <i class="iconfont icon-user" />
          </div>
        </el-form-item>

        <el-form-item
          class="input-prepend restyle no-radius"
          prop="mobile"
          :rules="[
            {
    
     required: true, message: '请输入手机号码', trigger: 'blur' },
            {
    
     validator: checkPhone, trigger: 'blur' },
          ]"
        >
          <div>
            <el-input
              type="text"
              placeholder="手机号"
              v-model="params.mobile"
            />
            <i class="iconfont icon-phone" />
          </div>
        </el-form-item>

        <el-form-item
          class="input-prepend restyle no-radius"
          prop="code"
          :rules="[
            {
    
     required: true, message: '请输入验证码', trigger: 'blur' },
          ]"
        >
          <div
            style="width: 100%; display: block; float: left; position: relative"
          >
            <el-input type="text" placeholder="验证码" v-model="params.code" />
            <i class="iconfont icon-phone" />
          </div>
          <div
            class="btn"
            style="position: absolute; right: 0; top: 6px; width: 40%"
          >
            <a
              href="javascript:"
              type="button"
              @click="getCodeFun()"
              :value="codeTest"
              style="border: none; background-color: none"
              >{
    
    {
    
     codeTest }}</a
            >
          </div>
        </el-form-item>

        <el-form-item
          class="input-prepend"
          prop="password"
          :rules="[{ required: true, message: '请输入密码', trigger: 'blur' }]"
        >
          <div>
            <el-input
              type="password"
              placeholder="设置密码"
              v-model="params.password"
            />
            <i class="iconfont icon-password" />
          </div>
        </el-form-item>

        <div class="btn">
          <input
            type="button"
            class="sign-up-button"
            value="注册"
            @click="submitRegister()"
          />
        </div>
        <p class="sign-up-msg">
          点击 “注册” 即表示您同意并愿意遵守简书
          <br />
          <a target="_blank" href="http://www.jianshu.com/p/c44d171298ce"
            >用户协议</a
          ><a target="_blank" href="http://www.jianshu.com/p/2ov8x3">隐私政策</a></p>
      </el-form>
      <!-- 更多注册方式 -->
      <div class="more-sign">
        <h6>社交帐号直接注册</h6>
        <ul>
          <li>
            <a
              id="weixin"
              class="weixin"
              target="_blank"
              href="http://huaan.free.idcfengye.com/api/ucenter/wx/login"
              ><i class="iconfont icon-weixin"
            /></a>
          </li>
          <li>
            <a id="qq" class="qq" target="_blank" href="#"
              ><i class="iconfont icon-qq"
            /></a>
          </li>
        </ul>
      </div>
    </div>
  </div>
</template>

<script>
import "~/assets/css/sign.css";
import "~/assets/css/iconfont.css";

import registerApi from "@/api/register";

export default {
    
    
  layout: "sign",
  data() {
    
    
    return {
    
    
      params: {
    
    
        //封装注册输入数据
        mobile: "",
        code: "", //验证码
        nickname: "",
        password: "",
      },
      sending: true, //是否发送验证码
      second: 60, //倒计时间
      codeTest: "获取验证码",
    };
  },
  methods: {
    
    
    //注册提交的方法
    submitRegister() {
    
    
      registerApi.registerMember(this.params).then((response) => {
    
    
        //提示注册成功
        this.$message({
    
    
          type: "success",
          message: "注册成功",
        });
        //跳转登录页面
        this.$router.push({
    
     path: "/login" });
      });
    },
    timeDown() {
    
    
      let result = setInterval(() => {
    
    
        --this.second;
        this.codeTest = this.second;
        if (this.second < 1) {
    
    
          clearInterval(result);
          this.sending = true;
          //this.disabled = false;
          this.second = 60;
          this.codeTest = "获取验证码";
        }
      }, 1000);
    },
    //通过输入手机号发送验证码
    getCodeFun() {
    
    
      registerApi.sendCode(this.params.mobile).then((response) => {
    
    
        this.sending = false;
        //调用倒计时的方法
        this.timeDown();
      });
    },

    checkPhone(rule, value, callback) {
    
    
      //debugger
      if (!/^1[34578]\d{
    
    9}$/.test(value)) {
    
    
        return callback(new Error("手机号码格式不正确"));
      }
      return callback();
    },
  },
};
</script>

在api文件夹中创建登录的js文件,定义接口

login.js

import request from '@/utils/request'

export default {
    
    
  //登录的方法
  submitLoginUser(userInfo) {
    
    
    return request({
    
    
      url: `/educenter/member/login`,
      method: 'post',
      data: userInfo
    })
  },

  //根据token获取用户信息
  getLoginUserInfo() {
    
    
    return request({
    
    
      url: `/educenter/member/getMemberInfo`,
      method: 'get'
    })
  }

}

安装js-cookie插件

npm install js-cookie

login.vue

<template>
  <div class="main">
    <div class="title">
      <a class="active" href="/login">登录</a>
      <span>·</span>
      <a href="/register">注册</a>
    </div>

    <div class="sign-up-container">
      <el-form ref="userForm" :model="user">
        <el-form-item
          class="input-prepend restyle"
          prop="mobile"
          :rules="[
            {
    
     required: true, message: '请输入手机号码', trigger: 'blur' },
            {
    
     validator: checkPhone, trigger: 'blur' },
          ]"
        >
          <div>
            <el-input type="text" placeholder="手机号" v-model="user.mobile" />
            <i class="iconfont icon-phone" />
          </div>
        </el-form-item>

        <el-form-item
          class="input-prepend"
          prop="password"
          :rules="[{ required: true, message: '请输入密码', trigger: 'blur' }]"
        >
          <div>
            <el-input
              type="password"
              placeholder="密码"
              v-model="user.password"
            />
            <i class="iconfont icon-password" />
          </div>
        </el-form-item>

        <div class="btn">
          <input
            type="button"
            class="sign-in-button"
            value="登录"
            @click="submitLogin()"
          />
        </div>
      </el-form>
      <!-- 更多登录方式 -->
      <div class="more-sign">
        <h6>社交帐号登录</h6>
        <ul>
          <li>
            <a
              id="weixin"
              class="weixin"
              target="_blank"
              href="http://qy.free.idcfengye.com/api/ucenter/weixinLogin/login"
              ><i class="iconfont icon-weixin"
            /></a>
          </li>
          <li>
            <a id="qq" class="qq" target="_blank" href="#"
              ><i class="iconfont icon-qq"
            /></a>
          </li>
        </ul>
      </div>
    </div>
  </div>
</template>

<script>
import "~/assets/css/sign.css";
import "~/assets/css/iconfont.css";
import cookie from "js-cookie";
export default {
    
    
  layout: "sign",

  data() {
    
    
    return {
    
    
      user: {
    
    
        mobile: "",
        password: "",
      },
      loginInfo: {
    
    },
    };
  },

  methods: {
    
    
    checkPhone(rule, value, callback) {
    
    
      //debugger
      if (!/^1[34578]\d{
    
    9}$/.test(value)) {
    
    
        return callback(new Error("手机号码格式不正确"));
      }
      return callback();
    },
  },
};
</script>
<style>
.el-form-item__error {
    
    
  z-index: 9999999;
}
</style>

登录和登录成功流程分析

在这里插入图片描述

在utils下的request.js添加拦截器,用于传递token信息

前端拦截器

// http request 拦截器
service.interceptors.request.use(
  config => {
    
    

    //判断cookie里面是否名称有guli_token
    if (cookie.get('guli_token')) {
    
    
      //把获取cookie值放到header里面
      config.headers['token'] = cookie.get('guli_token');

    }

    return config

  },

  err => {
    
    

    return Promise.reject(err);
  })

注意第四步哪里老师是写的this.loginInfo = response.data.data.userInfo;但是会报json解析错误,可以加个JSON.stringify

//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("guli_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
          cookie.set(
            "guli_ucenter",
            JSON.stringify(response.data.data.userInfo),
            {
    
     domain: "localhost" }
          );

          //跳转页面
          window.location.href = "/";
        });
      });
    },

修改layouts中的default.vue页面

  //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)
      if (userStr) {
    
    
        this.loginInfo = JSON.parse(userStr);
      }
    },

default.vue页面显示登录之后的用户信息

登录成功显示用户名和退出登录,没有登录显示登录和注册,使用vue的标签v-if

<ul class="h-r-login">
            <li v-if="!loginInfo.id" id="no-login">
              <a href="/login" title="登录">
                <em class="icon18 login-icon">&nbsp;</em>
                <span class="vam ml5">登录</span>
              </a>
              |
              <a href="/register" title="注册">
                <span class="vam ml5">注册</span>
              </a>
            </li>
            <li v-if="loginInfo.id" id="is-login-one" class="mr10">
              <a id="headerMsgCountId" href="#" title="消息">
                <em class="icon18 news-icon">&nbsp;</em>
              </a>
              <q class="red-point" style="display: none">&nbsp;</q>
            </li>
            <li v-if="loginInfo.id" id="is-login-two" class="h-r-user">
              <a href="/ucenter" 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);"
                title="退出"
                @click="logout()"
                class="ml5"
                >退出</a
              >
            </li>
            <!-- /未登录显示第1 li;登录后显示第23 li -->
          </ul>

退出登录

layouts中的default.vue页面

//退出
    logout() {
    
    
      //清空cookie值
      cookie.set("guli_token", "", {
    
     domain: "localhost" });
      cookie.set("guli_ucenter", "", {
    
     domain: "localhost" });
      //回到首页面
      window.location.href = "/";
    },

OAuth2

令牌机制,按照一定规则生成字符串,字符串包含用户信息

OAuth2主要解决两个问题

  1. 开放系统间授权
  2. 分布式访问问题

开放系统间授权的三种方式

方式一:用户名密码复制

适用于同一公司内部的多个系统,不适用于不受信的第三方应用
在这里插入图片描述

方式二:通用开发者key

适用于合作商或者授信的不同业务部门之间
在这里插入图片描述

方式三:办法令牌

接近OAuth2方式,需要考虑如何管理令牌、颁发令牌、吊销令牌,需要统一的协议,因此就有了OAuth2协议
在这里插入图片描述
在这里插入图片描述

微信登录

准备工作

1、注册
2、邮箱激活
3、完善开发者资料
4、开发者资质认证
准备营业执照,1-2个工作日审批、300元
5、创建网站应用
提交审核,7个工作日审批
6、熟悉微信登录流程
参考文档:https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419316505&token=e547653f995d8f402704d5cb2945177dc8aa4e7e&lang=zh_CN

后端

配置

P201 微信扫码 redirect_url报错的解决方案如下(解决方法引自尚硅谷公众号)
★ 第一 修改项目启动端口号为 8160
★ 第二步 把回调地址改为 wx.open.redirect_url=http://localhost:8160/api/ucenter/wx/callback
★★ 说明:目前微信登录回调可以直接请求localhost地址了,所以修改了回调配置就是http://localhost:8160

# 服务端口
server.port=8160
# 服务名
spring.application.name=service-ucenter

# 环境设置:dev、test、prod
spring.profiles.active=dev

spring.cloud.nacos.discovery.server-addr=123.57.252.81:7001
# mysql数据库连接
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/gulischool?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=123456

spring.redis.host=123.57.252.81
spring.redis.port=6379
spring.redis.database= 0
spring.redis.timeout=1800000
spring.redis.lettuce.pool.max-active=20
spring.redis.lettuce.pool.max-wait=-1
#最大阻塞等待时间(负数表示没限制)
spring.redis.lettuce.pool.max-idle=5
spring.redis.lettuce.pool.min-idle=0
#最小空闲

#返回json的全局时间格式
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8

#配置mapper xml文件的路径
mybatis-plus.mapper-locations=classpath:com/atguigu/educenter/mapper/xml/*.xml

#mybatis日志
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

# 微信开放平台 appid
wx.open.app_id=wxed9954c01bb89b47
# 微信开放平台 appsecret
wx.open.app_secret=a7482517235173ddb4083788de60b90e
# 微信开放平台 重定向url
wx.open.redirect_url=http://localhost:8160/api/ucenter/wx/callback

创建util包,创建ConstantWxUtils工具类

package com.atguigu.educenter.utils;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
public class ConstantWxUtils implements InitializingBean {
    
    

    @Value("${wx.open.app_id}")
    private String appId;

    @Value("${wx.open.app_secret}")
    private String appSecret;

    @Value("${wx.open.redirect_url}")
    private String redirectUrl;

    public static String WX_OPEN_APP_ID;
    public static String WX_OPEN_APP_SECRET;
    public static String WX_OPEN_REDIRECT_URL;

    @Override
    public void afterPropertiesSet() throws Exception {
    
    
        WX_OPEN_APP_ID = appId;
        WX_OPEN_APP_SECRET = appSecret;
        WX_OPEN_REDIRECT_URL = redirectUrl;
    }
}

创建controller生成登录二维码

注意这个controller要使用@Controller,因为不是要返回json字符串,还是要返回二维码
也要注意nginx的配置文件
要对redirect_url进行url编码

//生成微信扫描二维码
    @GetMapping("login")
    public String getWxCode(){
    
    
        //固定地址,后面拼接参数
        String url = "https://open.weixin.qq.com/connect/qrconnect" +
        "?appid=%s" +
        "&redirect_uri=%s" +
        "&response_type=code" +
        "&scope=snsapi_login" +
        "&state=%s" +
        "#wechat_redirect";

        //对redirect_url进行编码
        String redirectUrl=ConstantWxUtils.WX_OPEN_REDIRECT_URL;
        try {
    
    
            redirectUrl= URLEncoder.encode(redirectUrl, "utf-8");
        } catch (UnsupportedEncodingException e) {
    
    
            e.printStackTrace();
        }

        String finalurl = String.format(url, ConstantWxUtils.WX_OPEN_APP_ID, redirectUrl, "atguigu");
        //重定向到请求微信地址里面
        return "redirect:"+finalurl;
    }

添加依赖

<dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>


        <!--commons-io-->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>

        <!--gson-->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
        </dependency>

创建httpclient工具类

放入util包

package com.atguigu.educenter.utils;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.config.RequestConfig.Builder;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import java.io.IOException;
import java.net.SocketTimeoutException;
import java.security.GeneralSecurityException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

/**
 *  依赖的jar包有:commons-lang-2.6.jar、httpclient-4.3.2.jar、httpcore-4.3.1.jar、commons-io-2.4.jar
 * @author zhaoyb
 *
 */
public class HttpClientUtils {
    
    

	public static final int connTimeout=10000;
	public static final int readTimeout=10000;
	public static final String charset="UTF-8";
	private static HttpClient client = null;

	static {
    
    
		PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
		cm.setMaxTotal(128);
		cm.setDefaultMaxPerRoute(128);
		client = HttpClients.custom().setConnectionManager(cm).build();
	}

	public static String postParameters(String url, String parameterStr) throws ConnectTimeoutException, SocketTimeoutException, Exception{
    
    
		return post(url,parameterStr,"application/x-www-form-urlencoded",charset,connTimeout,readTimeout);
	}

	public static String postParameters(String url, String parameterStr,String charset, Integer connTimeout, Integer readTimeout) throws ConnectTimeoutException, SocketTimeoutException, Exception{
    
    
		return post(url,parameterStr,"application/x-www-form-urlencoded",charset,connTimeout,readTimeout);
	}

	public static String postParameters(String url, Map<String, String> params) throws ConnectTimeoutException,
			SocketTimeoutException, Exception {
    
    
		return postForm(url, params, null, connTimeout, readTimeout);
	}

	public static String postParameters(String url, Map<String, String> params, Integer connTimeout,Integer readTimeout) throws ConnectTimeoutException,
			SocketTimeoutException, Exception {
    
    
		return postForm(url, params, null, connTimeout, readTimeout);
	}

	public static String get(String url) throws Exception {
    
    
		return get(url, charset, null, null);
	}

	public static String get(String url, String charset) throws Exception {
    
    
		return get(url, charset, connTimeout, readTimeout);
	}

	/**
	 * 发送一个 Post 请求, 使用指定的字符集编码.
	 *
	 * @param url
	 * @param body RequestBody
	 * @param mimeType 例如 application/xml "application/x-www-form-urlencoded" a=1&b=2&c=3
	 * @param charset 编码
	 * @param connTimeout 建立链接超时时间,毫秒.
	 * @param readTimeout 响应超时时间,毫秒.
	 * @return ResponseBody, 使用指定的字符集编码.
	 * @throws ConnectTimeoutException 建立链接超时异常
	 * @throws SocketTimeoutException  响应超时
	 * @throws Exception
	 */
	public static String post(String url, String body, String mimeType,String charset, Integer connTimeout, Integer readTimeout)
			throws ConnectTimeoutException, SocketTimeoutException, Exception {
    
    
		HttpClient client = null;
		HttpPost post = new HttpPost(url);
		String result = "";
		try {
    
    
			if (StringUtils.isNotBlank(body)) {
    
    
				HttpEntity entity = new StringEntity(body, ContentType.create(mimeType, charset));
				post.setEntity(entity);
			}
			// 设置参数
			Builder customReqConf = RequestConfig.custom();
			if (connTimeout != null) {
    
    
				customReqConf.setConnectTimeout(connTimeout);
			}
			if (readTimeout != null) {
    
    
				customReqConf.setSocketTimeout(readTimeout);
			}
			post.setConfig(customReqConf.build());

			HttpResponse res;
			if (url.startsWith("https")) {
    
    
				// 执行 Https 请求.
				client = createSSLInsecureClient();
				res = client.execute(post);
			} else {
    
    
				// 执行 Http 请求.
				client = HttpClientUtils.client;
				res = client.execute(post);
			}
			result = IOUtils.toString(res.getEntity().getContent(), charset);
		} finally {
    
    
			post.releaseConnection();
			if (url.startsWith("https") && client != null&& client instanceof CloseableHttpClient) {
    
    
				((CloseableHttpClient) client).close();
			}
		}
		return result;
	}


	/**
	 * 提交form表单
	 *
	 * @param url
	 * @param params
	 * @param connTimeout
	 * @param readTimeout
	 * @return
	 * @throws ConnectTimeoutException
	 * @throws SocketTimeoutException
	 * @throws Exception
	 */
	public static String postForm(String url, Map<String, String> params, Map<String, String> headers, Integer connTimeout,Integer readTimeout) throws ConnectTimeoutException,
			SocketTimeoutException, Exception {
    
    

		HttpClient client = null;
		HttpPost post = new HttpPost(url);
		try {
    
    
			if (params != null && !params.isEmpty()) {
    
    
				List<NameValuePair> formParams = new ArrayList<NameValuePair>();
				Set<Entry<String, String>> entrySet = params.entrySet();
				for (Entry<String, String> entry : entrySet) {
    
    
					formParams.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
				}
				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formParams, Consts.UTF_8);
				post.setEntity(entity);
			}

			if (headers != null && !headers.isEmpty()) {
    
    
				for (Entry<String, String> entry : headers.entrySet()) {
    
    
					post.addHeader(entry.getKey(), entry.getValue());
				}
			}
			// 设置参数
			Builder customReqConf = RequestConfig.custom();
			if (connTimeout != null) {
    
    
				customReqConf.setConnectTimeout(connTimeout);
			}
			if (readTimeout != null) {
    
    
				customReqConf.setSocketTimeout(readTimeout);
			}
			post.setConfig(customReqConf.build());
			HttpResponse res = null;
			if (url.startsWith("https")) {
    
    
				// 执行 Https 请求.
				client = createSSLInsecureClient();
				res = client.execute(post);
			} else {
    
    
				// 执行 Http 请求.
				client = HttpClientUtils.client;
				res = client.execute(post);
			}
			return IOUtils.toString(res.getEntity().getContent(), "UTF-8");
		} finally {
    
    
			post.releaseConnection();
			if (url.startsWith("https") && client != null
					&& client instanceof CloseableHttpClient) {
    
    
				((CloseableHttpClient) client).close();
			}
		}
	}




	/**
	 * 发送一个 GET 请求
	 *
	 * @param url
	 * @param charset
	 * @param connTimeout  建立链接超时时间,毫秒.
	 * @param readTimeout  响应超时时间,毫秒.
	 * @return
	 * @throws ConnectTimeoutException   建立链接超时
	 * @throws SocketTimeoutException   响应超时
	 * @throws Exception
	 */
	public static String get(String url, String charset, Integer connTimeout,Integer readTimeout)
			throws ConnectTimeoutException,SocketTimeoutException, Exception {
    
    

		HttpClient client = null;
		HttpGet get = new HttpGet(url);
		String result = "";
		try {
    
    
			// 设置参数
			Builder customReqConf = RequestConfig.custom();
			if (connTimeout != null) {
    
    
				customReqConf.setConnectTimeout(connTimeout);
			}
			if (readTimeout != null) {
    
    
				customReqConf.setSocketTimeout(readTimeout);
			}
			get.setConfig(customReqConf.build());

			HttpResponse res = null;

			if (url.startsWith("https")) {
    
    
				// 执行 Https 请求.
				client = createSSLInsecureClient();
				res = client.execute(get);
			} else {
    
    
				// 执行 Http 请求.
				client = HttpClientUtils.client;
				res = client.execute(get);
			}

			result = IOUtils.toString(res.getEntity().getContent(), charset);
		} finally {
    
    
			get.releaseConnection();
			if (url.startsWith("https") && client != null && client instanceof CloseableHttpClient) {
    
    
				((CloseableHttpClient) client).close();
			}
		}
		return result;
	}


	/**
	 * 从 response 里获取 charset
	 *
	 * @param ressponse
	 * @return
	 */
	@SuppressWarnings("unused")
	private static String getCharsetFromResponse(HttpResponse ressponse) {
    
    
		// Content-Type:text/html; charset=GBK
		if (ressponse.getEntity() != null  && ressponse.getEntity().getContentType() != null && ressponse.getEntity().getContentType().getValue() != null) {
    
    
			String contentType = ressponse.getEntity().getContentType().getValue();
			if (contentType.contains("charset=")) {
    
    
				return contentType.substring(contentType.indexOf("charset=") + 8);
			}
		}
		return null;
	}



	/**
	 * 创建 SSL连接
	 * @return
	 * @throws GeneralSecurityException
	 */
	private static CloseableHttpClient createSSLInsecureClient() throws GeneralSecurityException {
    
    
		try {
    
    
			SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
    
    
				public boolean isTrusted(X509Certificate[] chain,String authType) throws CertificateException {
    
    
					return true;
				}
			}).build();

			SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, new X509HostnameVerifier() {
    
    

				@Override
				public boolean verify(String arg0, SSLSession arg1) {
    
    
					return true;
				}

				@Override
				public void verify(String host, SSLSocket ssl)
						throws IOException {
    
    
				}

				@Override
				public void verify(String host, X509Certificate cert)
						throws SSLException {
    
    
				}

				@Override
				public void verify(String host, String[] cns,
								   String[] subjectAlts) throws SSLException {
    
    
				}

			});

			return HttpClients.custom().setSSLSocketFactory(sslsf).build();

		} catch (GeneralSecurityException e) {
    
    
			throw e;
		}
	}

	public static void main(String[] args) {
    
    
		try {
    
    
			String str= post("https://localhost:443/ssl/test.shtml","name=12&page=34","application/x-www-form-urlencoded", "UTF-8", 10000, 10000);
			//String str= get("https://localhost:443/ssl/test.shtml?name=12&page=34","GBK");
            /*Map<String,String> map = new HashMap<String,String>();
            map.put("name", "111");
            map.put("page", "222");
            String str= postForm("https://localhost:443/ssl/test.shtml",map,null, 10000, 10000);*/
			System.out.println(str);
		} catch (ConnectTimeoutException e) {
    
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SocketTimeoutException e) {
    
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
    
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

创建回调controller方法

在WxApiController.java中添加如下方法

//2 获取扫描人信息,添加数据
    @GetMapping("callback")
    public String callback(String code, String state) {
    
    
        try {
    
    
            //1 获取code值,临时票据,类似于验证码
            //2 拿着code请求 微信固定的地址,得到两个值 accsess_token 和 openid
            String baseAccessTokenUrl = "https://api.weixin.qq.com/sns/oauth2/access_token" +
                    "?appid=%s" +
                    "&secret=%s" +
                    "&code=%s" +
                    "&grant_type=authorization_code";
            //拼接三个参数 :id  秘钥 和 code值
            String accessTokenUrl = String.format(
                    baseAccessTokenUrl,
                    ConstantWxUtils.WX_OPEN_APP_ID,
                    ConstantWxUtils.WX_OPEN_APP_SECRET,
                    code
            );
            //请求这个拼接好的地址,得到返回两个值 accsess_token 和 openid
            //使用httpclient发送请求,得到返回结果
            String accessTokenInfo = HttpClientUtils.get(accessTokenUrl);

            //从accessTokenInfo字符串获取出来两个值 accsess_token 和 openid
            //把accessTokenInfo字符串转换map集合,根据map里面key获取对应值
            //使用json转换工具 Gson
            Gson gson = new Gson();
            HashMap mapAccessToken = gson.fromJson(accessTokenInfo, HashMap.class);
            String access_token = (String)mapAccessToken.get("access_token");
            String openid = (String)mapAccessToken.get("openid");

            //把扫描人信息添加数据库里面
            //判断数据表里面是否存在相同微信信息,根据openid判断
            UcenterMember member = memberService.getOpenIdMember(openid);
            if(member == null) {
    
    //memeber是空,表没有相同微信数据,进行添加

                //3 拿着得到accsess_token 和 openid,再去请求微信提供固定的地址,获取到扫描人信息
                //访问微信的资源服务器,获取用户信息
                String baseUserInfoUrl = "https://api.weixin.qq.com/sns/userinfo" +
                        "?access_token=%s" +
                        "&openid=%s";
                //拼接两个参数
                String userInfoUrl = String.format(
                        baseUserInfoUrl,
                        access_token,
                        openid
                );
                //发送请求
                String userInfo = HttpClientUtils.get(userInfoUrl);
                //获取返回userinfo字符串扫描人信息
                HashMap userInfoMap = gson.fromJson(userInfo, HashMap.class);
                String nickname = (String)userInfoMap.get("nickname");//昵称
                String headimgurl = (String)userInfoMap.get("headimgurl");//头像

                member = new UcenterMember();
                member.setOpenid(openid);
                member.setNickname(nickname);
                member.setAvatar(headimgurl);
                memberService.save(member);
            }

            //使用jwt根据member对象生成token字符串
            String jwtToken = JwtUtils.getJwtToken(member.getId(), member.getNickname());
            //最后:返回首页面,通过路径传递token字符串,因为cookie不能跨域

            return "redirect:http://localhost:3000?token="+jwtToken;
        }catch(Exception e) {
    
    
            throw new GuliException(20001,"登录失败");
        }
    }

service

//根据openid查询
    @Override
    public UcenterMember getOpenIdMember(String openid) {
    
    

        QueryWrapper<UcenterMember> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("openid",openid);
        UcenterMember member = baseMapper.selectOne(queryWrapper);
        return member;

    }

完整版

package com.atguigu.educenter.controller;

import com.atguigu.commonutils.utils.JwtUtils;
import com.atguigu.educenter.entity.UcenterMember;
import com.atguigu.educenter.service.UcenterMemberService;
import com.atguigu.educenter.utils.ConstantWxUtils;
import com.atguigu.educenter.utils.HttpClientUtils;
import com.atguigu.servicebase.exceptionhandler.GuliException;
import com.google.gson.Gson;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.HashMap;

@CrossOrigin
@Controller
@RequestMapping("/api/ucenter/wx")
public class WxApiController {
    
    
    @Autowired
    private UcenterMemberService memberService;

    //2 获取扫描人信息,添加数据
    @GetMapping("callback")
    public String callback(String code, String state) {
    
    
        try {
    
    
            //1 获取code值,临时票据,类似于验证码
            //2 拿着code请求 微信固定的地址,得到两个值 accsess_token 和 openid
            String baseAccessTokenUrl = "https://api.weixin.qq.com/sns/oauth2/access_token" +
                    "?appid=%s" +
                    "&secret=%s" +
                    "&code=%s" +
                    "&grant_type=authorization_code";
            //拼接三个参数 :id  秘钥 和 code值
            String accessTokenUrl = String.format(
                    baseAccessTokenUrl,
                    ConstantWxUtils.WX_OPEN_APP_ID,
                    ConstantWxUtils.WX_OPEN_APP_SECRET,
                    code
            );
            //请求这个拼接好的地址,得到返回两个值 accsess_token 和 openid
            //使用httpclient发送请求,得到返回结果
            String accessTokenInfo = HttpClientUtils.get(accessTokenUrl);

            //从accessTokenInfo字符串获取出来两个值 accsess_token 和 openid
            //把accessTokenInfo字符串转换map集合,根据map里面key获取对应值
            //使用json转换工具 Gson
            Gson gson = new Gson();
            HashMap mapAccessToken = gson.fromJson(accessTokenInfo, HashMap.class);
            String access_token = (String)mapAccessToken.get("access_token");
            String openid = (String)mapAccessToken.get("openid");

            //把扫描人信息添加数据库里面
            //判断数据表里面是否存在相同微信信息,根据openid判断
            UcenterMember member = memberService.getOpenIdMember(openid);
            if(member == null) {
    
    //memeber是空,表没有相同微信数据,进行添加

                //3 拿着得到accsess_token 和 openid,再去请求微信提供固定的地址,获取到扫描人信息
                //访问微信的资源服务器,获取用户信息
                String baseUserInfoUrl = "https://api.weixin.qq.com/sns/userinfo" +
                        "?access_token=%s" +
                        "&openid=%s";
                //拼接两个参数
                String userInfoUrl = String.format(
                        baseUserInfoUrl,
                        access_token,
                        openid
                );
                //发送请求
                String userInfo = HttpClientUtils.get(userInfoUrl);
                //获取返回userinfo字符串扫描人信息
                HashMap userInfoMap = gson.fromJson(userInfo, HashMap.class);
                String nickname = (String)userInfoMap.get("nickname");//昵称
                String headimgurl = (String)userInfoMap.get("headimgurl");//头像

                member = new UcenterMember();
                member.setOpenid(openid);
                member.setNickname(nickname);
                member.setAvatar(headimgurl);
                memberService.save(member);
            }

            //使用jwt根据member对象生成token字符串
            String jwtToken = JwtUtils.getJwtToken(member.getId(), member.getNickname());
            //最后:返回首页面,通过路径传递token字符串

            return "redirect:http://localhost:3000?token="+jwtToken;
        }catch(Exception e) {
    
    
            throw new GuliException(20001,"登录失败");
        }
    }
    //生成微信扫描二维码
    @GetMapping("login")
    public String getWxCode(){
    
    
        //固定地址,后面拼接参数
        String url = "https://open.weixin.qq.com/connect/qrconnect" +
        "?appid=%s" +
        "&redirect_uri=%s" +
        "&response_type=code" +
        "&scope=snsapi_login" +
        "&state=%s" +
        "#wechat_redirect";

        //对redirect_url进行编码
        String redirectUrl=ConstantWxUtils.WX_OPEN_REDIRECT_URL;
        try {
    
    
            redirectUrl= URLEncoder.encode(redirectUrl, "utf-8");
        } catch (UnsupportedEncodingException e) {
    
    
            e.printStackTrace();
        }

        String finalurl = String.format(url, ConstantWxUtils.WX_OPEN_APP_ID, redirectUrl, "atguigu");
        //重定向到请求微信地址里面
        return "redirect:"+finalurl;
    }
}

修改前端default.vue页面脚本

<template>
  <div class="in-wrap">
    <!-- 公共头引入 -->
    <header id="header">
      <section class="container">
        <h1 id="logo">
          <a href="#" title="谷粒学院">
            <img src="~/assets/img/logo.png" width="100%" alt="谷粒学院" />
          </a>
        </h1>
        <div class="h-r-nsl">
          <ul class="nav">
            <router-link to="/" tag="li" active-class="current" exact>
              <a>首页</a>
            </router-link>
            <router-link to="/course" tag="li" active-class="current">
              <a>课程</a>
            </router-link>
            <router-link to="/teacher" tag="li" active-class="current">
              <a>名师</a>
            </router-link>
            <router-link to="/article" tag="li" active-class="current">
              <a>文章</a>
            </router-link>
            <router-link to="/qa" tag="li" active-class="current">
              <a>问答</a>
            </router-link>
          </ul>
          <!-- / nav -->
          <!-- / nav -->
          <ul class="h-r-login">
            <li v-if="!loginInfo.id" id="no-login">
              <a href="/login" title="登录">
                <em class="icon18 login-icon">&nbsp;</em>
                <span class="vam ml5">登录</span>
              </a>
              |
              <a href="/register" title="注册">
                <span class="vam ml5">注册</span>
              </a>
            </li>
            <li v-if="loginInfo.id" id="is-login-one" class="mr10">
              <a id="headerMsgCountId" href="#" title="消息">
                <em class="icon18 news-icon">&nbsp;</em>
              </a>
              <q class="red-point" style="display: none">&nbsp;</q>
            </li>
            <li v-if="loginInfo.id" id="is-login-two" class="h-r-user">
              <a href="/ucenter" 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);"
                title="退出"
                @click="logout()"
                class="ml5"
                >退出</a
              >
            </li>
            <!-- /未登录显示第1 li;登录后显示第23 li -->
          </ul>
          <aside class="h-r-search">
            <form action="#" method="post">
              <label class="h-r-s-box">
                <input
                  type="text"
                  placeholder="输入你想学的课程"
                  name="queryCourse.courseName"
                  value
                />
                <button type="submit" class="s-btn">
                  <em class="icon18">&nbsp;</em>
                </button>
              </label>
            </form>
          </aside>
        </div>
        <aside class="mw-nav-btn">
          <div class="mw-nav-icon"></div>
        </aside>
        <div class="clear"></div>
      </section>
    </header>
    <!-- /公共头引入 -->

    <nuxt />

    <!-- 公共底引入 -->
    <footer id="footer">
      <section class="container">
        <div class>
          <h4 class="hLh30">
            <span class="fsize18 f-fM c-999">友情链接</span>
          </h4>
          <ul class="of flink-list">
            <li>
              <a href="http://www.atguigu.com/" title="尚硅谷" target="_blank"
                >尚硅谷</a
              >
            </li>
          </ul>
          <div class="clear"></div>
        </div>
        <div class="b-foot">
          <section class="fl col-7">
            <section class="mr20">
              <section class="b-f-link">
                <a href="#" title="关于我们" target="_blank">关于我们</a>|
                <a href="#" title="联系我们" target="_blank">联系我们</a>|
                <a href="#" title="帮助中心" target="_blank">帮助中心</a>|
                <a href="#" title="资源下载" target="_blank">资源下载</a>|
                <span>服务热线:010-56253825(北京) 0755-85293825(深圳)</span>
                <span>Email:info@atguigu.com</span>
              </section>
              <section class="b-f-link mt10">
                <span>©2018课程版权均归谷粒学院所有 京ICP备17055252</span>
              </section>
            </section>
          </section>
          <aside class="fl col-3 tac mt15">
            <section class="gf-tx">
              <span>
                <img src="~/assets/img/wx-icon.png" alt />
              </span>
            </section>
            <section class="gf-tx">
              <span>
                <img src="~/assets/img/wb-icon.png" alt />
              </span>
            </section>
          </aside>
          <div class="clear"></div>
        </div>
      </section>
    </footer>
    <!-- /公共底引入 -->
  </div>
</template>
<script>
import "~/assets/css/reset.css";
import "~/assets/css/theme.css";
import "~/assets/css/global.css";
import "~/assets/css/web.css";

import cookie from "js-cookie";
import loginApi from "@/api/login";

export default {
    
    
  data() {
    
    
    return {
    
    
      token: "",
      loginInfo: {
    
    
        id: "",
        age: "",
        avatar: "",
        mobile: "",
        nickname: "",
        sex: "",
      },
    };
  },
  created() {
    
    
    //获取路径里面token值
    this.token = this.$route.query.token;
    // console.log(this.token);
    // console.log(typeof this.token);
    if (this.token) {
    
    
      //判断路径是否有token值
      this.wxLogin();
    }

    this.showInfo();
  },
  methods: {
    
    
    //微信登录显示的方法
    wxLogin() {
    
    
      //console.log('************'+this.token)
      //把token值放到cookie里面
      cookie.set("guli_token", this.token, {
    
     domain: "localhost" });
      cookie.set("guli_ucenter", "", {
    
     domain: "localhost" });
      //console.log('====='+cookie.get('guli_token'))
      //调用接口,根据token值获取用户信息
      loginApi.getLoginUserInfo().then((response) => {
    
    
        // console.log('################'+response.data.data.userInfo)
        this.loginInfo = response.data.data.userInfo;
        // console.log("==========" + this.loginInfo);
        // console.log(typeof this.loginInfo);
        cookie.set("guli_ucenter", this.loginInfo, {
    
     domain: "localhost" });
      });
    },
    //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)
      if (userStr) {
    
    
        this.loginInfo = JSON.parse(userStr);
      }
    },

    //退出
    logout() {
    
    
      //清空cookie值
      cookie.set("guli_token", "", {
    
     domain: "localhost" });
      cookie.set("guli_ucenter", "", {
    
     domain: "localhost" });
      //回到首页面
      window.location.href = "/";
    },
  },
};
</script>

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