写一个uniapp的登录注册页面

一、效果图

二、代码

1、登录

（1）页面布局代码

<template>
  <view class="normal-login-container">
    <view class="logo-content align-center justify-center flex">
	  <image class="img-a" src="/static/images/b-1.png"></image>
	  <image class="img-b" src="/static/images/b-2.png"></image>
	  <!-- 标题 -->
	  <view class="text">
		  <view class="t-b">{{ title }}</view>
		  <view class="t-b2">{{ subTitle }}</view>
	  </view>
    </view>
    <view class="login-form-content">
      <view class="input-item flex align-center">
        <view class="iconfont icon-user icon"></view>
        <input v-model="loginForm.username" class="input" type="text" placeholder="请输入账号" maxlength="30" />
      </view>
      <view class="input-item flex align-center">
        <view class="iconfont icon-password icon"></view>
        <input v-model="loginForm.password" type="password" class="input" placeholder="请输入密码" maxlength="20" />
      </view>
      <view class="input-item flex align-center" style="width: 60%;margin: 0px;" v-if="captchaEnabled">
        <view class="iconfont icon-code icon"></view>
        <input v-model="loginForm.code" type="number" class="input" placeholder="请输入验证码" maxlength="4" />
        <view class="login-code"> 
          <image :src="codeUrl" @click="getCode" class="login-code-img"></image>
        </view>
      </view>
      <view class="action-btn">
        <button @click="handleLogin" class="login-btn cu-btn block bg-blue lg round">登录</button>
      </view>
      <view class="reg text-center" v-if="register">
        <text class="text-grey1">没有账号？</text>
        <text @click="handleUserRegister" class="text-blue">立即注册</text>
      </view>
      <view class="xieyi text-center">
        <!-- <text class="text-grey1">登录即代表同意</text>
        <text @click="handleUserAgrement" class="text-blue">《用户协议》</text>
        <text @click="handlePrivacy" class="text-blue">《隐私协议》</text> -->
      </view>
    </view>
  </view>
</template>

（2）逻辑实现代码

<script>
  import { getCodeImg } from '@/api/login'
  export default {
    data() {
      return {
		  title: '管理平台',
		  subTitle: '欢迎回来，开始工作吧！',
        codeUrl: "",
        captchaEnabled: true,
        // 用户注册开关
        register: true,
        globalConfig: getApp().globalData.config,
        loginForm: {
          username: "admin",
          password: "admin123",
          code: "",
          uuid: ''
        }
      }
    },
    created() {
      this.getCode()
    },
    methods: {
      // 用户注册
      handleUserRegister() {
        this.$tab.redirectTo(`/pages/register`)
      },
      // 隐私协议
      // handlePrivacy() {
      //   let site = this.globalConfig.appInfo.agreements[0]
      //   this.$tab.navigateTo(`/pages/common/webview/index?title=${site.title}&url=${site.url}`)
      // },
      // // 用户协议
      // handleUserAgrement() {
      //   let site = this.globalConfig.appInfo.agreements[1]
      //   this.$tab.navigateTo(`/pages/common/webview/index?title=${site.title}&url=${site.url}`)
      // },
      // 获取图形验证码
      getCode() {
        getCodeImg().then(res => {
		  res=res.data
          this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
          if (this.captchaEnabled) {
            this.codeUrl = 'data:image/gif;base64,' + res.img
            this.loginForm.uuid = res.uuid
          }
        })
      },
      // 登录方法
      async handleLogin() {
        if (this.loginForm.username === "") {
          this.$modal.msgError("请输入您的账号")
        } else if (this.loginForm.password === "") {
          this.$modal.msgError("请输入您的密码")
        } else if (this.loginForm.code === "" && this.captchaEnabled) {
          this.$modal.msgError("请输入验证码")
        } else {
          this.$modal.loading("登录中，请耐心等待...")
          this.pwdLogin()
        }
      },
      // 密码登录
      async pwdLogin() {
        this.$store.dispatch('Login', this.loginForm).then(() => {
					  // console.log(document.response);
          this.$modal.closeLoading()
          this.loginSuccess()

        }).catch(() => {
          if (this.captchaEnabled) {
            this.getCode()
          }
        })
      },
      // 登录成功后，处理函数
      loginSuccess(result) {
        // 设置用户信息
        this.$store.dispatch('GetInfo').then(res => {
          this.$tab.reLaunch('/pages/index')
        })
      }
    }
  }
</script>

（3）css样式

<style lang="scss">
  page {
    background-color: #ffffff;
  }

  .normal-login-container {
    width: 100%;

    .logo-content {
      width: 100%;
      font-size: 21px;
      text-align: center;
      padding-top: 15%;

      image {
        border-radius: 4px;
      }

      .title {
        margin-left: 10px;
      }
    }

    .login-form-content {
      text-align: center;
      margin: 20px auto;
      // margin-top: 3%;
      width: 80%;

      .input-item {
        margin: 20px auto;
        background-color: #f5f6f7;
        height: 45px;
        border-radius: 20px;

        .icon {
          font-size: 38rpx;
          margin-left: 10px;
          color: #999;
        }

        .input {
          width: 100%;
          font-size: 14px;
          line-height: 20px;
          text-align: left;
          padding-left: 15px;
        }

      }

      .login-btn {
        margin-top: 40px;
        height: 45px;
      }
      
      .reg {
        margin-top: 15px;
      }
      
      .xieyi {
        color: #333;
        margin-top: 20px;
      }
      
      .login-code {
        height: 38px;
        float: right;
      
        .login-code-img {
          height: 38px;
          position: absolute;
          margin-left: 10px;
          width: 200rpx;
        }
      }
    }
  }
.img-a {
	position: absolute;
	    width: 100%;
	    top: -74px;
	    right: 0;
	    z-index: 100;
}
.img-b {
	position: absolute;
	width: 50%;
	bottom: 0;
	left: -50rpx;
	z-index: 100;
}
.text{
	    margin-left: -111px;
		margin-top: 28px;
}
.t-b {
	    text-align: left;
	    font-size: 29px;
	    color: #000;
	    padding: 60px 0 10px 0;
	    font-weight: bold;
}
.t-b2 {
	text-align: left;
	font-size: 32rpx;
	color: #aaaaaa;
	padding: 0rpx 0 60rpx 0;
}

</style>

2、注册

（1）页面布局代码

<template>
  <view class="normal-login-container">
    <view class="logo-content align-center justify-center flex">
      <!-- <image style="width: 100rpx;height: 100rpx;" :src="globalConfig.appInfo.logo" mode="widthFix">
      </image> -->
	  <image class="img-a" src="/static/images/b-1.png"></image>
	  <image class="img-b" src="/static/images/b-2.png"></image>
      <text class="title">绣创科技移动端注册</text>
	  
    </view>
    <view class="login-form-content">
      <view class="input-item flex align-center">
        <view class="iconfont icon-user icon"></view>
        <input v-model="registerForm.username" class="input" type="text" placeholder="请输入账号" maxlength="30" />
      </view>
      <view class="input-item flex align-center">
        <view class="iconfont icon-password icon"></view>
        <input v-model="registerForm.password" type="password" class="input" placeholder="请输入密码" maxlength="20" />
      </view>
      <view class="input-item flex align-center">
        <view class="iconfont icon-password icon"></view>
        <input v-model="registerForm.confirmPassword" type="password" class="input" placeholder="请输入重复密码" maxlength="20" />
      </view>
      <view class="input-item flex align-center" style="width: 60%;margin: 0px;" v-if="captchaEnabled">
        <view class="iconfont icon-code icon"></view>
        <input v-model="registerForm.code" type="number" class="input" placeholder="请输入验证码" maxlength="4" />
        <view class="login-code"> 
          <image :src="codeUrl" @click="getCode" class="login-code-img"></image>
        </view>
      </view>
      <view class="action-btn">
        <button @click="handleRegister()" class="register-btn cu-btn block bg-blue lg round">注册</button>
      </view>
    </view>
    <view class="xieyi text-center">
      <text @click="handleUserLogin" class="text-blue">使用已有账号登录</text>
    </view>
  </view>
</template>

（2）逻辑实现代码

<script>
  import { getCodeImg, register } from '@/api/login'
  export default {
    data() {
      return {
        codeUrl: "",
        captchaEnabled: true,
        globalConfig: getApp().globalData.config,
        registerForm: {
          username: "",
          password: "",
          confirmPassword: "",
          code: "",
          uuid: '',
		  userType:"app_user"
        }
      }
    },
    created() {
      this.getCode()
    },
    methods: {
      // 用户登录
      handleUserLogin() {
        this.$tab.navigateTo(`/pages/login`)
      },
      // 获取图形验证码
      getCode() {
        getCodeImg().then(res => {
          this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
          if (this.captchaEnabled) {
            this.codeUrl = 'data:image/gif;base64,' + res.data.img
            this.registerForm.uuid = res.data.uuid
			
          }
        })
      },
      // 注册方法
      async handleRegister() {
        if (this.registerForm.username === "") {
          this.$modal.msgError("请输入您的账号")
        } else if (this.registerForm.password === "") {
          this.$modal.msgError("请输入您的密码")
        } else if (this.registerForm.confirmPassword === "") {
          this.$modal.msgError("请再次输入您的密码")
        } else if (this.registerForm.password !== this.registerForm.confirmPassword) {
          this.$modal.msgError("两次输入的密码不一致")
        } else if (this.registerForm.code === "" && this.captchaEnabled) {
          this.$modal.msgError("请输入验证码")
        } else {
          this.$modal.loading("注册中，请耐心等待...")
          this.register()
        }
      },
      // 用户注册
      async register() {
        register(this.registerForm).then(res => {
          this.$modal.closeLoading()
          uni.showModal({
          	title: "系统提示",
          	content: "恭喜你，您的账号 " + this.registerForm.username + " 注册成功！",
          	success: function (res) {
          		if (res.confirm) {
                uni.redirectTo({ url: `/pages/login` });
          		}
          	}
          })
        }).catch(() => {
          if (this.captchaEnabled) {
            this.getCode()
          }
        })
      },
      // 注册成功后，处理函数
      registerSuccess(result) {
        // 设置用户信息
        this.$store.dispatch('GetInfo').then(res => {
          this.$tab.reLaunch('/pages/index')
        })
      }
    }
  }
</script>

（3）css样式

<style lang="scss">
  page {
    background-color: #ffffff;
  }

  .normal-login-container {
    width: 100%;

    .logo-content {
      width: 100%;
      font-size: 21px;
      text-align: center;
      padding-top: 15%;

      image {
        border-radius: 4px;
      }

      .title {
        margin-left: 10px;
		position: absolute;
		z-index: 100;
      }
    }

    .login-form-content {
      text-align: center;
      margin: 20px auto;
      margin-top: 30%;
      width: 80%;

      .input-item {
        margin: 20px auto;
        background-color: #f5f6f7;
        height: 45px;
        border-radius: 20px;

        .icon {
          font-size: 38rpx;
          margin-left: 10px;
          color: #999;
        }

        .input {
          width: 100%;
          font-size: 14px;
          line-height: 20px;
          text-align: left;
          padding-left: 15px;
        }

      }

      .register-btn {
        margin-top: 40px;
        height: 45px;
      }

      .xieyi {
        color: #333;
        margin-top: 20px;
      }
      
      .login-code {
        height: 38px;
        float: right;
      
        .login-code-img {
          height: 38px;
          position: absolute;
          margin-left: 10px;
          width: 200rpx;
        }
      }
    }
  }
.img-a {
	position: absolute;
	    width: 100%;
	    top: -74px;
	    right: 0;
	    z-index: 100;
}
.img-b {
	position: absolute;
	width: 50%;
	bottom: 0;
	left: -50rpx;
	z-index: 100;
}
</style>

3、接口（所有用到的js）

（1）login.js

import request from '@/utils/request'

// 登录方法
export function login(username, password, code, uuid) {
  const data = {
    username,
    password,
    code,
    uuid
  }
  return request({
    'url': '/login',
    headers: {
      isToken: false
    },
    'method': 'post',
    'data': data
  })
}

// 注册方法
export function register(data) {
  return request({
    url: '/register',
    headers: {
      isToken: false
    },
    method: 'post',
    data: data
  })
}

// 获取用户详细信息
export function getInfo() {
  return request({
    'url': '/getInfo',
    'method': 'get'
  })
}

// 退出方法
export function logout() {
  return request({
    'url': '/logout',
    'method': 'post'
  })
}

// 获取验证码
export function getCodeImg() {
  return request({
    'url': '/captchaImage',
    headers: {
      isToken: false
    },
    method: 'get',
    timeout: 20000
  })
}

（2）request.js

import store from '@/store'
import config from '@/config'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import { toast, showConfirm, tansParams } from '@/utils/common'
import { encryptBase64, encryptWithAes, generateAesKey } from '@/utils/crypto';
import { encrypt } from '@/utils/jsencrypt';

let timeout = 10000
const baseUrl = config.baseUrl
const clientId = config.clientId

const request = config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  config.header = config.header || {}
  if (getToken() && !isToken) {
    config.header['Authorization'] = 'Bearer ' + getToken()
  }
  config.header['clientid']=clientId
  // get请求映射params参数
  if (config.params) {
    let url = config.url + '?' + tansParams(config.params)
    url = url.slice(0, -1)
    config.url = url
  }
  // 是否需要加密
  const isEncrypt = (config.headers || {}).isEncrypt === true;
  // 当开启参数加密
  if (isEncrypt && (config.method === 'post' || config.method === 'put')) {
    // 生成一个 AES 密钥
    const aesKey = generateAesKey();
    config.header['encrypt-key'] = encrypt(encryptBase64(aesKey));
    config.data = typeof config.params === 'object' ? encryptWithAes(JSON.stringify(config.params), aesKey) : encryptWithAes(config.params, aesKey);
  }
  return new Promise((resolve, reject) => {
    uni.request({
        method: config.method || 'get',
        timeout: config.timeout ||  timeout,
        url: config.baseUrl || baseUrl + config.url,
        data: config.data,
        header: config.header,
        dataType: 'json'
      }).then(response => {
        let [error, res] = response
        if (error) {
          toast('后端接口连接异常')
          reject('后端接口连接异常')
          return
        }
        const code = res.data.code || 200
        const msg = errorCode[code] || res.data.msg || errorCode['default']
        if (code === 401) {
          showConfirm('登录状态已过期，您可以继续留在该页面，或者重新登录?').then(res => {
            if (res.confirm) {
              store.dispatch('LogOut').then(res => {
                uni.reLaunch({ url: '/pages/login' })
              })
            }
          })
          reject('无效的会话，或者会话已过期，请重新登录。')
        } else if (code === 500) {
          toast(msg)
          reject('500')
        } else if (code !== 200) {
          toast(msg)
          reject(code)
        }
        resolve(res.data)
      })
      .catch(error => {
        let { message } = error
        if (message === 'Network Error') {
          message = '后端接口连接异常'
        } else if (message.includes('timeout')) {
          message = '系统接口请求超时'
        } else if (message.includes('Request failed with status code')) {
          message = '系统接口' + message.substr(message.length - 3) + '异常'
        }
        toast(message)
        reject(error)
      })
  })
}

export default request

（3）auth.js

const TokenKey = 'App-Token'

export function getToken() {
  return uni.getStorageSync(TokenKey)
}

export function setToken(token) {
  return uni.setStorageSync(TokenKey, token)
}

export function removeToken() {
  return uni.removeStorageSync(TokenKey)
}

（4）common.js

/**
* 显示消息提示框
* @param content 提示的标题
*/
export function toast(content) {
  uni.showToast({
    icon: 'none',
    title: content
  })
}

/**
* 显示模态弹窗
* @param content 提示的标题
*/
export function showConfirm(content) {
  return new Promise((resolve, reject) => {
    uni.showModal({
      title: '提示',
      content: content,
      cancelText: '取消',
      confirmText: '确定',
      success: function(res) {
        resolve(res)
      }
    })
  })
}

/**
* 参数处理
* @param params 参数
*/
export function tansParams(params) {
  let result = ''
  for (const propName of Object.keys(params)) {
    const value = params[propName]
    var part = encodeURIComponent(propName) + "="
    if (value !== null && value !== "" && typeof (value) !== "undefined") {
      if (typeof value === 'object') {
        for (const key of Object.keys(value)) {
          if (value[key] !== null && value[key] !== "" && typeof (value[key]) !== 'undefined') {
            let params = propName + '[' + key + ']'
            var subPart = encodeURIComponent(params) + "="
            result += subPart + encodeURIComponent(value[key]) + "&"
          }
        }
      } else {
        result += part + encodeURIComponent(value) + "&"
      }
    }
  }
  return result
}

（5）crpto.js

import CryptoJS from 'crypto-js';

/**
 * 随机生成32位的字符串
 * @returns {string}
 */
export function generateRandomString(){
  const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  let result = '';
  const charactersLength = characters.length
  for (let i = 0; i < 32; i++) {
    result += characters.charAt(Math.floor(Math.random() * charactersLength));
  }
  return result
}

/**
 * 随机生成aes 密钥
 * @returns {string}
 */
export function generateAesKey(){
  return CryptoJS.enc.Utf8.parse(generateRandomString());
}

/**
 * 加密base64
 * @returns {string}
 */
export function encryptBase64(str){
  return CryptoJS.enc.Base64.stringify(str);
}

/**
 * 使用密钥对数据进行加密
 * @param message
 * @param aesKey
 * @returns {string}
 */
export function encryptWithAes(message, aesKey){
  const encrypted = CryptoJS.AES.encrypt(message, aesKey, {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7
  });
  return encrypted.toString();
}

（6）jsencrypt.js

import JSEncrypt from 'jsencrypt';
// 密钥对生成 http://web.chacuo.net/netrsakeypair

const publicKey = 'MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAKoR8mX0rGKLqzcWmOzbfj64K8ZIgOdHnzkXSOVOZbFu/TJhZ7rFAN+eaGkl3C4buccQd/EjEsj9ir7ijT7h96MCAwEAAQ==';

// 前端不建议存放私钥 不建议解密数据 因为都是透明的意义不大
const privateKey = '**********';

// 加密
export function encrypt(txt){
  const encryptor = new JSEncrypt();
  encryptor.setPublicKey(publicKey); // 设置公钥
  return encryptor.encrypt(txt); // 对数据进行加密
};

// 解密
export function decrypt(txt){
  const encryptor = new JSEncrypt();
  encryptor.setPrivateKey(privateKey); // 设置私钥
  return encryptor.decrypt(txt); // 对数据进行解密
};

（7）errorCode.js

export default {
  '401': '认证失败，无法访问系统资源',
  '403': '当前操作没有权限',
  '404': '访问资源不存在',
  'default': '系统未知错误，请反馈给管理员'
}

（8）config.js

// 应用全局配置
module.exports = {
  baseUrl: 'http://localhost:8080',//根据实际更换
  //客户端id
  clientId:'...............',
    //授权模式
  grantType:'password',
    //租户id
  tenantId: '000000',
    //记住我模式
  rememberMe: false,
  // 应用信息
  appInfo: {
    // 应用名称
    name: "...",
    // 应用版本
    version: "1.1.0",
    // 应用logo
    logo: "/static/logo.png",
    // 官方网站
    site_url: "...",
    // 政策协议
    agreements: [{
        title: "隐私政策",
        url: "..."
      },
      {
        title: "用户服务协议",
        url: "..."
      }
    ]
  }
}