vue中 sessionStorage 的使用

很少说, 直接上代码, 看了你就会用了。

使用登陆举例： 

<template>
  <div>
    <el-form ref="form" :model="user" label-width="80px">
      <el-form-item label="帐号">
        <el-input v-model="user.username"></el-input>
      </el-form-item>
      <el-form-item label="密码">
        <el-input v-model="user.password"></el-input>
      </el-form-item>
      <el-button type="primary" @click="login">登陆</el-button>
    </el-form>
  </div>
</template>

<script>
import axios from "axios";
axios.defaults.baseURL = "http://localhost:8080";
export default {
  data() {
    return {
      user: {}
    };
  },
  methods: {
    async login() {
      let { data } = await axios.post("/user/login", this.user);
      if (data.code == 1) {
        this.$message.success(data.message);
        //key   value  存储
        sessionStorage.setItem("token", this.user.username);
        // 经过key 获取
        let token = sessionStorage.getItem("token");
        this.$message.info(token);
        this.$router.push("/home");
      } else {
        this.$message.error(data.message);
      }
    }
  }
};
</script>

<style>
body {
  text-align: center;
}
</style>