38-Vue之cron表达式组件使用

npm install vue-cron-editor-buefy -S
npm install cronstrue -S

<template>
    <div id="app">
      <!-- 输入框   -->
      <el-form :model="form" label-position="left">     
        <el-form-item label="cron表达式" :label-width="formLabelWidth">
          <el-input v-model="form.cron_rule" autocomplete="off" placeholder="请输入定时cron表达式" disabled>
            <template slot="append">
              <el-button type="primary" @click="creatCron">
                生成表达式
                <i class="el-icon-time el-icon--right"></i>
              </el-button>
            </template>
          </el-input>
        </el-form-item>
        <!-- cron dialog -->
        <el-dialog title="生成 cron" :visible.sync="showCron">
            <VueCronEditorBuefy v-model="expression"/>
            <div style="color:#2496FF">
                <h5>预览cron表达式: {{ expression }}</h5>
                <h5>cron表达式解释: {{ explainAddCron }}</h5>
            </div>
            <el-button type="primary" size="medium" @click="cronConfirm" style="margin-left: 88%;">确定
            </el-button>
        </el-dialog>
      </el-form>
    </div>
  </template>
  <script>
  import VueCronEditorBuefy from 'vue-cron-editor-buefy';
  import cronstrue from "cronstrue/i18n";
  export default {
      components: { cronstrue,VueCronEditorBuefy, },
      data() {
          return {
              input: "",
              expression: "",
              showCron: false,
              cronExpression: "*/1 * * * *",
              form:{},
              formLabelWidth: '120px',
              showCron: false
          };
      },
      computed: {
       explainAddCron() {
        if(this.expression){
        // use24HourTimeFormat ： 使用24小时制, 默认false 12小时制
          return cronstrue.toString(this.expression, { locale: "zh_CN",use24HourTimeFormat:true});
        }
      }
    },
      methods: {
          creatCron(){
            // 生成表达式
            this.expression = this.cronExpression 
            this.showCron = true
          },        
        cronConfirm() {
            // 生成表达式确定按钮
            this.showCron = false
            this.form.cron_rule = this.expression
            },
      }
  };
  </script>

{
    path: '/cron',
    component: Layout,
    children: [
      {
        path: 'cron',
        name: 'cron',
        component: () => import('@/views/cronTest.vue'),
        meta: { title: 'cron', icon: 'form' }
      }
    ]
  }

npm install  vcrontab -S

<template>
    <div id="app">
      <div class="box">
          <el-input v-model="input" placeholder class="inp"></el-input>
          <el-button type="primary" @click="showDialog">生成 cron</el-button>
      </div>
      <el-dialog title="生成 cron" :visible.sync="showCron">
          <vcrontab @hide="showCron=false" @fill="crontabFill" :expression="expression"></vcrontab>
      </el-dialog>
    </div>
  </template>
  <script>
  import vcrontab from 'vcrontab'
  export default {
      components: {vcrontab},
      data() {
          return {
              input: "",
              expression: "",
              showCron: false,
              cronExpression: "*/1 * * * *",
              form:{},
              formLabelWidth: '120px',
              showCron: false
          };
      },
      methods: {
          crontabFill(value) {
              //确定后回传的值
              this.input = value;
          },
          showDialog() {
              this.expression = this.input;//传入的 cron 表达式，可以反解析到 UI 上
              this.showCron = true;
          }
      }
  };
  </script>