實現功能：

1、登入時勾選記住密碼，用cookie儲存賬號和密碼並對密碼進行兩次加密處理（純前端），下次登入自動輸入賬號密碼

2、登入時不勾選，清空cookie，下次登入需要輸入

效果圖：

=============================================================================================================================================================================================

Html

 <div class="login-form-item">
     <el-form :model="ValidateForm" ref="ValidateForm" label-width="100px" class="demo-ruleForm">
      <el-form-item

        prop="username"
        :rules="[{ required: true,message: '使用者名稱不能為空'}
      ]">
       <span><i class="el-icon-user"></i></span><el-input type="username" v-model.number="ValidateForm.username" autocomplete="off" clearable placeholder="使用者名稱"></el-input>
      </el-form-item>
      <br>
      <el-form-item

        prop="password"
        :rules="[{ required: true,message: '密碼不能為空'},]">
       <span><i class="el-icon-lock"></i></span><el-input type="password" v-model.number="ValidateForm.password" autocomplete="off" clearable show-password placeholder="密碼"></el-input>
      </el-form-item>
      <br>
      <el-form-item

        prop="sidentify"
        :rules="[
{ required: true,message: '驗證碼不能為空'},]"
      >
       <el-row class="sidentify">
        <el-col :span="21">
         <el-input type="age" v-model="ValidateForm.sidentify" autocomplete="off" placeholder="驗證碼"></el-input>
        </el-col>
        <el-col :span="3" class="sidentify sidentify-img">
         <sidentify :changeCode.sync='identifyCode' ref="switchSidentify"></sidentify>
        </el-col>
       </el-row>
      </el-form-item>
      <el-form-item>
       <el-checkbox v-model="checked" class="sidentify">記住密碼</el-checkbox>
      </el-form-item>
      <el-form-item>
       <el-button type="primary" @click="submitForm('ValidateForm')" class="login-btn">登入</el-button>
      </el-form-item>
     </el-form>
    </div>

加密方法我用的base64和CryptoJS 大家記得去下載

js部分：

登入

// 登入
submitForm(formName) {
 this.$refs[formName].validate((valid) => {
  if (valid) {
   let username=this.ValidateForm.username;
   let pwd=this.ValidateForm.password;
   let sidentify=this.ValidateForm.sidentify;
   // 驗證碼通過
   if (sidentify == this.identifyCode){
    this.request.post(this.api.login.logindo,{username:username,pwd:pwd}).then((res)=>{
     console.log(res);
     if (res.data.code == 200){
      this.$message({
       message : '登入成功！',type : 'success'
      })
      //呼叫check選中方法
      this.checkedPwd(username,pwd)
      this.$router.push({name:'Home'})
     }else {
      this.$message({
       message : '賬號或密碼錯誤，請重新輸入！',type : 'error'
      })
      //清空
      this.resetForm('ValidateForm')
      //重新整理驗證碼
      this.$refs.switchSidentify.changeCode()
     }
    })
   }else {
    this.$message({
     message : '驗證碼輸入錯誤，請重新輸入！',type : 'error'
    })
    this.$refs.switchSidentify.changeCode()
    this.resetForm('ValidateForm')
   }
  } else {
   return false;
  }
 });
},

check方法：

checkedPwd(username,pwd){
 // 記住密碼進行cookie儲存和密碼加密
 if (this.checked){
  // base64 加密
  let base64Pwd=Base64.encode(pwd);
  // Encrypt 加密
  let cryptoJsPwd=CryptoJS.AES.encrypt(base64Pwd,key).toString()
  // 賬號密碼儲存天數
  this.setCookie(username,cryptoJsPwd,7)
 }else{
  // 清空
  this.clearCookie()
 }
},

設定讀取和清空cookie

// 設定cookie
setCookie(c_name,c_pwd,exdays) {
 var exdate = new Date(); // 獲取時間
 exdate.setTime(exdate.getTime() + 24 * 60 * 60 * 1000 * exdays); // 儲存的天數
 // 字串拼接cookie
 window.document.cookie = "username" + "=" + c_name + ";path=/;expires=" + exdate.toGMTString();
 window.document.cookie = "password" + "=" + c_pwd + ";path=/;expires=" + exdate.toGMTString();
},// 讀取cookie
getCookie: function() {
 if (document.cookie.length > 0) {
  //checked為true
  this.checked=true
  var arr = document.cookie.split('; ');
  for (var i = 0; i < arr.length; i++) {
   var arr2 = arr[i].split('=');
   if (arr2[0] == 'username') {
    this.ValidateForm.username = arr2[1];
   } else if (arr2[0] == 'password') {
    // Decrypt 解密
    let bytes = CryptoJS.AES.decrypt(arr2[1],key)
    let originalText=bytes.toString(CryptoJS.enc.Utf8)
    // base64解密
    let pwd=Base64.decode(originalText)
    this.ValidateForm.password = pwd;
   }
  }
 }
},// 清除cookie
clearCookie: function() {
 this.setCookie("","",-1); // 修改2值都為空，天數為負1天就好了
},

一定要建立後讀取cookie

created () {
 this.getCookie()
},

總結

到此這篇關於Vue+element+cookie記住密碼功能的簡單實現方法文章就介紹到這了,更多相關Vue+element+cookie記住密碼功能內容請搜尋我們以前的文章或繼續瀏覽下面的相關文章希望大家以後多多支援我們！