vue考试系统后台管理项目-登录、记住密码功能

1. 利用cookie实现，实现记住密码功能，下次打开页面自动补全，设置有效期为7天；
2. 账号、密码验证；
3. 点击登录调用接口跳转后台首页

 login.vue组件代码：

<template>
  <div class="login-wrap">
    <h2 class="title" style="color:#fff">考试系统后台管理</h2>
    <el-form label-position="left" :model="ruleForm" :rules="rules" ref="ruleForm" label-width="0px"
      class="demo-ruleForm login-container">
      <h3 class="title">用户登录</h3>
      <el-form-item prop="loginAccount">
        <el-input type="text" v-model="ruleForm.loginAccount" auto-complete="off" placeholder="账号"></el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input type="password" v-model="ruleForm.password" auto-complete="off" placeholder="密码"></el-input>
      </el-form-item>
      <el-checkbox class="remember" v-model="rememberpwd">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button type="primary" style="width:100%;" @click="submitForm('ruleForm'),loginIn('ruleForm')" :loading="logining">登录</el-button>
      </el-form-item>
    </el-form>
    <div class="copyright">版权********</div>
  </div>
</template>

data定义数据：

rules定义账号密码验证规则，可自定义规则

data() {
    return {
      logining: false,
      rememberpwd: false,
      ruleForm: {
        loginAccount: "",
        password: ""
      },
      rules: {
        loginAccount: [
          { required: true, message: "请输入账号", trigger: "blur" }
        ],
        password: [{ required: true, message: "请输入密码", trigger: "blur" }]
      }
    };
  },

methods方法：

• 添加点击键盘Enter的判断，点击之后触发登录，调用登录接口

// 键盘enter注册事件
    loginIn(){
      let keyCode = window.event.keyCode;
      console.log(this.$route.path,"登录path")
      if(keyCode == 13 && this.$route.path=="/login"){
        this.$refs.ruleForm.validate(valid => {
          if (valid) {
            this.logining = true;
            this.loginFun();
          } else {
            this.$message.error("请输入用户名密码！");
            this.logining = false;
            return false;
          }
        });
      }else{
        return;
      }
    },

• 可以手动点击登录调用登录接口，也可以使用Enter键调用登录

methods: {
    // 获取用户名密码
    getuserpwd() {
      // 如果缓存里面有记录，就直接获取登录
      if (getCookie("user") != "" && getCookie("pwd") != "") {
        this.ruleForm.loginAccount = getCookie("user");
        this.ruleForm.password = getCookie("pwd");
        this.rememberpwd = true;
      }
    },

    // 登录方法封装
    async loginFun() {
      const res = await login(this.ruleForm);
      console.log(res, "res登录");
      if (res.code == 200) {
        if (this.rememberpwd == true) {
          //保存帐号到cookie，有效期7天
          setCookie("user", this.ruleForm.loginAccount, 7);
          //保存密码到cookie，有效期7天
          setCookie("pwd", this.ruleForm.password, 7);
        } else {
          delCookie("user");
          delCookie("pwd");
        }
        setTimeout(() => {
          this.logining = false;
          this.$router.push("/first/first");
          this.$message({
            message: "登录成功",
            type: "success"
          });
        }, 1000);
      } else {
        this.$message.error(res.msg);
        this.logining = false;
        return false;
      }
    },
    submitForm(ruleForm) {
      this.$refs[ruleForm].validate(valid => {
        if (valid) {
          this.logining = true;
          // 调用登录接口
          this.loginFun();
        } else {
          this.$message.error("请输入用户名密码！");
          this.logining = false;
          return false;
        }
      });
    },
    // 键盘enter注册事件
    loginIn(){
      let keyCode = window.event.keyCode;
      console.log(this.$route.path,"登录path")
      if(keyCode == 13 && this.$route.path=="/login"){
        this.$refs.ruleForm.validate(valid => {
          if (valid) {
            this.logining = true;
            this.loginFun();
          } else {
            this.$message.error("请输入用户名密码！");
            this.logining = false;
            return false;
          }
        });
      }else{
        return;
      }
    },
  },

点击记住密码方法调用：进入到页面进行读取

created() {
    this.getuserpwd();
  },

键盘Enter事件监听：

mounted(){
    window.addEventListener('keydown',this.loginIn);
  },
  destroyed(){
    window.removeEventListener('keydown',this.loginIn,false);
  }

登录接口引入：

import { login } from "../api/userMG";

封装的cookie方法引入：

import { setCookie, getCookie, delCookie } from "../utils/utils";

utils.js公共方法：

/**
 * 设置cookie
 **/
function setCookie(name, value, day) {
  let date = new Date();
  date.setDate(date.getDate() + day);
  document.cookie = name + '=' + value + ';expires=' + date;
};

/**
 * 获取cookie
 **/
function getCookie(name) {
  let reg = RegExp(name + '=([^;]+)');
  let arr = document.cookie.match(reg);
  if (arr) {
    return arr[1];
  } else {
    return '';
  }
};

/**
 * 删除cookie
 **/
function delCookie(name) {
  setCookie(name, null, -1);
};

到此结束