vue+element-ui实现cookie登录

//效果

//login.vue

<template>
    <div>
        <el-form :model="ruleForm" :rules="rules" ref="ruleForm" class="demo-ruleForm loginFrom">
        <h1 style="font-size: 1.5rem;color: #fff;font-weight: bold;padding: 1rem 0;">登陆</h1>
        <el-form-item>
            <el-input placeholder="账号" v-model="ruleForm.userName"></el-input>
        </el-form-item>
        <el-form-item>
            <el-input type="password" v-model="ruleForm.password" placeholder="密码"></el-input>
        </el-form-item>
        <div style="padding: 1rem 0 2rem 0;" class="clear">
            <span class="lf" style="color:#0489cc;">帮助</span>
            <div class="rt">
                <el-checkbox v-model="checked" style="color:#a0a0a0;">一周内自动登录</el-checkbox>
                <span @click="clearCookie" style="cursor: pointer;color: #f19149;font-size: 0.75rem;margin-left: 5px;">忘记密码？</span>
            </div>
        </div>
        <el-button type="primary" @click="submitForm('ruleForm')" style="width: 100%;">登陆</el-button>
    </el-form>
    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" class="demo-ruleForm loginFrom">
        <h1 style="font-size: 1.5rem;color: #fff;font-weight: bold;padding: 1rem 0;">登陆</h1>
        <el-form-item>
            <el-input placeholder="账号" v-model="ruleForm.userName"></el-input>
        </el-form-item>
        <el-form-item>
            <el-input type="password" v-model="ruleForm.password" placeholder="密码"></el-input>
        </el-form-item>
        <div style="padding: 1rem 0 2rem 0;" class="clear">
            <span class="lf" style="color:#0489cc;">帮助</span>
            <div class="rt">
                <el-checkbox v-model="checked" style="color:#a0a0a0;">一周内自动登录</el-checkbox>
                <span @click="clearCookie" style="cursor: pointer;color: #f19149;font-size: 0.75rem;margin-left: 5px;">忘记密码？</span>
            </div>
        </div>
        <el-button type="primary" @click="submitForm('ruleForm')" style="width: 100%;">登陆</el-button>
    </el-form>
    </div>
</template>
<script>
export default {
  data() {
    return {
      ruleForm: {
        userName: "", //用户名
        password: "" //密码
      }
    };
  },
  methods: {
    //点击登录调用方法
    submitForm(formName) {
      //保存的账号
      var name = this.ruleForm.userName;
      //保存的密码
      var pass = this.ruleForm.password;
      if (name == "" || name == null) {
        alert("请输入正确的用户名");
        return;
      } else if (pass == "" || pass == null) {
        alert("请输入正确的密码");
        return;
      }
      //判断复选框是否被勾选 勾选则调用配置cookie方法
      if ((this.checked = true)) {
        //传入账号名，密码，和保存天数3个参数
        this.setCookie(name, pass, 7);
      }
      //接口
      var url = "myserver/user/login";
      this.$http.post(url, this.ruleForm, { emulateJSON: true }).then(res => {
        if (res.body == "fail") {
          alert("用户名或密码错误,请重新输入");
          this.ruleForm.userName = "";
          this.ruleForm.password = "";
          return;
        } else {
          alert("登陆成功");
          this.$router.push("/index");
        }
      });
    },
    //设置cookie
    setCookie(c_name, c_pwd, exdays) {
      var exdate = new Date(); //获取时间
      exdate.setTime(exdate.getTime() + 24 * 60 * 60 * 1000 * exdays); //保存的天数
      //字符串拼接cookie
      window.document.cookie =
        "userName" + "=" + c_name + ";path=/;expires=" + exdate.toGMTString();
      window.document.cookie =
        "userPwd" + "=" + c_pwd + ";path=/;expires=" + exdate.toGMTString();
    },
    //读取cookie
    getCookie: function() {
      if (document.cookie.length > 0) {
        var arr = document.cookie.split("; "); //这里显示的格式需要切割一下自己可输出看下
        for (var i = 0; i < arr.length; i++) {
          var arr2 = arr[i].split("="); //再次切割
          //判断查找相对应的值
          if (arr2[0] == "userName") {
            this.ruleForm.userName = arr2[1]; //保存到保存数据的地方
          } else if (arr2[0] == "userPwd") {
            this.ruleForm.password = arr2[1];
          }
        }
      }
    },
    //清除cookie
    clearCookie: function() {
      this.setCookie("", "", -1); //修改2值都为空，天数为负1天就好了
    }
  },
  //页面加载调用获取cookie值
  mounted() {
    this.getCookie();
  }
};
</script>
<style></style>