基于vue3的Crontab组件

Posted on by hackdl

网上找的没有满意的，决定从若依前后端分离其前端vue2中的crontab进行转换，先上效果

若依v2版：

改v3后：

v2转v3没什么难度，其中有大量的将 this.*** 替换为 ***.value，笔者写了个正则替换，希望可以帮助大家

this.(w+)         $服务器托管1.value

需要注意的有，在v2中【this.$refs[refName].cycle01 = indexArr[0]】这样写

在v3中要转换一下，在子组件中用【defineExpose】抛出一个setData方法，然后【proxy.$refs[refName].setData(“cycle01”, Number(indexArr[0]))】赋值

其中子组件CrontabSecond.vue的代码，其它分/时/日/月/周/年的类似，参照着改就可以了

    
        
            
                每秒，允许的通配符[, - * /]
            
        

        
            
                周期，从
                 -
                 秒
            
        

        
            
                从
                 秒开始，每
                 秒执行一次
            
        

        
            
                指定
                
                    for="item in 60" :key="item" :value="String(item-1)" :label="'第' + String(item-1) + '秒'">第 {{item-1}} 秒
                
            
        
    



import { ref } from 'vue';

const emits = defineEmits(["update"]);

const props = defineProps({
  check: {
        type: Function,
        require:false
    },
  cron: {
        type: Object,
    default: function(){
      return {}
    }
    },
});

const radioValue = ref(1);
const cycle01 = ref(1);
const cycle02 = ref(2);
const average01 = ref(0);
const average02 = ref(1);
const checkboxList = ref([]);

// 计算两个周期值
const cycleTotal = computed(() => {
    const c01 = props.check(cycle01.value, 0, 58)
    const c02 = props.check(cycle02.value, c01 ? c01 + 1 : 1, 59)
    return c01 + '-' + c02;
})
// 计算平均用到的值
const averageTotal = computed(() => {
    const a01 = props.check(average01.value, 0, 58)
    const a02 = props.check(average02.value, 1, 59 - a01 || 0)
    return a01 + '/' + a02;
})
// 计算勾选的checkbox值合集
const checkboxString = computed(() => {
    let str = checkboxList.value.join();
    return str == '' ? '*' : str;
})

watch(()=>radioValue.value, ()=>{
  radioChange();
})
watch(()=>cycleTotal.value, ()=>{
  cycleChange();
})
watch(()=>averageTotal.value, ()=>{
  averageChange();
})
watch(()=>checkboxString.value, ()=>{
  checkboxChange();
})

// 单选按钮值变化时
function radioChange() {
    switch (radioValue.value) {
        case 1:
            emits('update', 'second', '*', 'second');
            break;
        case 2:
            emits('update', 'second', cycleTotal.value);
            break;
        case 3:
            emits('update', 'second', averageTotal.value);
            break;
        case 4:
            emits('update', 'second', checkboxString.value);
            break;
    }
}
// 周期两个值变化时
function cycleChange() {
    if (radioValue.value == '2') {
        emits('update', 'second', cycleTotal.value);
    }
}
// 平均两个值变化时
function averageChange() {
    if (radioValue.value == '3') {
        emits('update', 'second', averageTotal.value);
    }
}
// checkbox值变化时
function checkboxChange() {
    if (radioValue.value == '4') {
        emits('update', 'second', checkboxString.value);
    }
}

defineExpose({
  setData(key, value){
        eval(key).value = value
  }
})

关于CrontabResult.vue的组件，转v3时，额外注意数组排序这里就好了，

# 如果改为compare.value会出现bug的

正确为  arr.sort(this.compare)   改为   arr.sort(compare)

贴出核心Crontab.vue的代码，其子组件就不一一贴了，需要的可以自己下若依代码进行转换

  

    
      
        CrontabSecond
          @update="updateCrontabValue"
          v-model:check="checkNumber"
          v-model:cron="crontabValueObj"
          ref="cronsecond"
        />
      

      
        CrontabMin
          @update="updateCrontabValue"
          v-model:check="checkNumber"
          v-model:cron="crontabValueObj"
          ref="cronmin"
        />
      

      
        CrontabHour
          @update="updateCrontabValue"
          v-model:check="checkNumber"
          v-model:cron="crontabValueObj"
          ref="cronhour"
        />
      

      
        CrontabDay
          @update="updateCrontabValue"
          v-model:check="checkNumber"
          v-model:cron="crontabValueObj"
          ref="cronday"
        />
      

      
        CrontabMonth
          @update="updateCrontabValue"
          v-model:check="checkNumber"
          v-model:cron="crontabValueObj"
          ref="cronmonth"
        />
      

      
        CrontabWeek
          @update="updateCrontabValue"
          v-model:check="checkNumber"
          v-model:cron="crontabValueObj"
          ref="cronweek"
        />
      

      
        CrontabYear
          @update="updateCrontabValue"
          v-model:check="checkNumber"
          v-model:cron="crontabValueObj"
          ref="cronyear"
        />
      
    

    

      

        

          
            
for="item of tabTitles" width="40" :key="item">{{item}}
            
          

          
            

              {{crontabValueObj.second}}
            
            
              {{crontabValueObj.min}}
            
            
              {{crontabValueObj.hour}}
            
            
              {{crontabValueObj.day}}
            
            
              {{crontabValueObj.month}}
            
            
              {{crontabValueObj.week}}
            
            
              {{crontabValueObj.year}}
            
            
          

        

        

          
            
Cron 表达式
          

          
            

              {{crontabValueString}}
            
          

        

      

      
      

        
      

    


  




import CrontabSecond fro服务器托管m "./crontab/CrontabSecond.vue";
import CrontabMin from "./crontab/CrontabMin.vue";
import CrontabHour from "./crontab/CrontabHour.vue";
import CrontabDay from "./crontab/CrontabDay.vue";
import CrontabMonth from "./crontab/CrontabMonth.vue";
import CrontabWeek from "./crontab/CrontabWeek.vue";
import CrontabYear from "./crontab/CrontabYear.vue";
import CrontabResult from "./crontab/CrontabResult.vue";

const { proxy } = getCurrentInstance();

const emits = defineEmits(["hide", "fill"]);

const props = defineProps({
  expression: {type: String, default: ""}
})

const tabTitles = ref(["秒", "分钟", "小时", "日", "月", "周", "年"])
const tabActive = ref(0)
const crontabValueObj = ref({
  second: "*",
  min: "*",
  hour: "*",
  day: "*",
  month: "*",
  week: "?",
  year: "",
})

const crontabValueString = computed(() => {
  let obj = crontabValueObj.value;
  let str =
    obj.second +
    " " +
    obj.min +
    " " +
    obj.hour +
    " " +
    obj.day +
    " " +
    obj.month +
    " " +
    obj.week +
    (obj.year == "" ? "" : " " + obj.year);
  return str;
})

onMounted(() => {
  resolveExp();
})

watch(() => props.expression, (v) => {
  resolveExp();
});

function resolveExp() {
  // 反解析 表达式
  if (props.expression) {
    let arr = props.expression.split(" ");
    if (arr.length >= 6) {
      //6 位以上是合法表达式
      let obj = {
        second: arr[0],
        min: arr[1],
        hour: arr[2],
        day: arr[3],
        month: arr[4],
        week: arr[5],
        year: arr[6] ? arr[6] : "",
      };
      crontabValueObj.value = {
        ...obj,
      };
      for (let i in obj) {
        if (obj[i]) changeRadio(i, obj[i]);
      }
    }
  } else {
    // 没有传入的表达式 则还原
    clearCron();
  }
}
// tab切换值
function tabCheck(index) {
  tabActive.value = index;
}
// 由子组件触发，更改表达式组成的字段值
function updateCrontabValue(name, value, from) {
  // "updateCrontabValue", name, value, from;
  crontabValueObj.value[name] = value;
  if (from && from !== name) {
    console.log(`来自组件 ${from} 改变了 ${name} ${value}`);
    changeRadio(name, value);
  }
}
// 赋值到组件
function changeRadio(name, value) {
  let arr = ["second", "min", "hour", "month"]
  let refName = "cron" + name
  let insValue;

  if (!proxy.$refs[refName]) return;

  if (arr.includes(name)) {
    if (value === "*") {
      insValue = 1;
    } else if (value.indexOf("-") > -1) {
      let indexArr = value.split("-");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("cycle01", 0))
        : (proxy.$refs[refName].setData("cycle01", Number(indexArr[0])));
      proxy.$refs[refName].setData("cycle02", Number(indexArr[1]));
      insValue = 2;
    } else if (value.indexOf("/") > -1) {
      let indexArr = value.split("/");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("average01", 0))
        : (proxy.$refs[refName].setData("average01", Number(indexArr[0])));
      proxy.$refs[refName].setData("average02", Number(indexArr[1]));
      insValue = 3;
    } else {
      insValue = 4;
      let list = value.split(",");
      for(let item of list){
        item = String(item)
      }
      proxy.$refs[refName].setData("checkboxList", list);
    }
  } else if (name == "day") {
    if (value === "*") {
      insValue = 1;
    } else if (value == "?") {
      insValue = 2;
    } else if (value.indexOf("-") > -1) {
      let indexArr = value.split("-");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("cycle01", 0))
        : (proxy.$refs[refName].setData("cycle01", Number(indexArr[0])));
      proxy.$refs[refName].setData("cycle02", Number(indexArr[1]));
      insValue = 3;
    } else if (value.indexOf("/") > -1) {
      let indexArr = value.split("/");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("average01", 0))
        : (proxy.$refs[refName].setData("average01", Number(indexArr[0])));
      proxy.$refs[refName].setData("average02", Number(indexArr[1]));
      insValue = 4;
    } else if (value.indexOf("W") > -1) {
      let indexArr = value.split("W");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("workday", 0))
        : (proxy.$refs[refName].setData("workday", Number(indexArr[0])));
      insValue = 5;
    } else if (value === "L") {
      insValue = 6;
    } else {
      let list = value.split(",");
      for(let item of list){
        item = String(item)
      }
      proxy.$refs[refName].setData("checkboxList", list);
      insValue = 7;
    }
  } else if (name == "week") {
    if (value === "*") {
      insValue = 1;
    } else if (value == "?") {
      insValue = 2;
    } else if (value.indexOf("-") > -1) {
      let indexArr = value.split("-");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("cycle01", "0"))
        : (proxy.$refs[refName].setData("cycle01", String(indexArr[0])));
      proxy.$refs[refName].setData("cycle02", String(indexArr[1]));
      insValue = 3;
    } else if (value.indexOf("#") > -1) {
      let indexArr = value.split("#");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("average01", 1))
        : (proxy.$refs[refName].setData("average01", Number(indexArr[0])));
      proxy.$refs[refName].setData("average02", String(indexArr[1]));
      insValue = 4;
    } else if (value.indexOf("L") > -1) {
      let indexArr = value.split("L");
      isNaN(indexArr[0])
        ? (proxy.$refs[refName].setData("weekday", "1"))
        : (proxy.$refs[refName].setData("weekday", String(indexArr[0])));
      insValue = 5;
    } else {
      let list = value.split(",");
      for(let item of list){
        item = String(item)
      }
      proxy.$refs[refName].setData("checkboxList", list);
      insValue = 6;
    }
  } else if (name == "year") {
    if (value == "") {
      insValue = 1;
    } else if (value == "*") {
      insValue = 2;
    } else if (value.indexOf("-") > -1) {
      insValue = 3;
    } else if (value.indexOf("/") > -1) {
      insValue = 4;
    } else {
      let list = value.split(",");
      for(let item of list){
        item = String(item)
      }
      proxy.$refs[refName].setData("checkboxList", list);
      insValue = 5;
    }
  }
  proxy.$refs[refName].setData("radioValue",  insValue);
}
// 表单选项的子组件校验数字格式（通过-props传递）
function checkNumber(value, minLimit, maxLimit) {
  // 检查必须为整数
  value = Math.floor(Number(value));
  if (value < minLimit) {
    value = minLimit;
  } else if (value > maxLimit) {
    value = maxLimit;
  }
  return value;
}
// 隐藏弹窗
function hidePopup() {
  emits("hide");
}
// 填充表达式
function submitFill() {
  emits("fill", crontabValueString);
  hidePopup();
}
function clearCron() {
  // 还原选择项
  ("准备还原");
  crontabValueObj.value = {
    second: "*",
    min: "*",
    hour: "*",
    day: "*",
    month: "*",
    week: "?",
    year: "",
  };
  for (let j in crontabValueObj.value) {
    changeRadio(j, crontabValueObj.value[j]);
  }
}

defineExpose({
  submitFill, clearCron
})


.crontab{
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.crontab-main {
  flex: 1;
  width: 100%;
  margin: 10px auto;
  background: #fff;
  border-radius: 5px;
  font-size: 12px;
  border: 1px solid #ccc;
  box-sizing: border-box;
  line-height: 24px;
  padding: 5px 10px 5px;
  display: flex;
  justify-content: space-between;
  overflow-y: auto;
}
.crontab-main-table {
  box-sizing: border-box;
  line-height: 24px;
  padding: 5px 10px 5px;
  width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  table {
    text-align: center;
    width: 100%;
    margin: 0;
    span {
      display: block;
      width: 100%;
      font-family: arial;
      line-height: 30px;
      height: 30px;
      white-space: nowrap;
      overflow: hidden;
      border: 1px solid #e8e8e8;
    }
  }
}

.crontab-main-result {
  box-sizing: border-box;
  padding: 5px 10px 5px;
  background-color: #f1f1f1;
  background-size: cover;
  width: 48%;
  display: flex;
  flex-direction: column;
  .crontab-result-title{
    padding: 5px;
  }
  :deep(.crontab-result-scroll) {
    font-size: 12px;
    line-height: 24px;
    margin: 0 !important;
    padding-left: 80px;
  }
}

.crontab-footer {
  text-align: right;
  height: 25px;
  padding: 5px 20px;
}

将原来组件的按钮移到引用层，引用样例

　　
      
      
      
        

          确 定
          重 置
          取 消

对应引用位置的调用方法

/** 确定访问子组件方法 */
function formCrontSubmit(){
  proxy.$refs.crontabRef.submitFill();
}
/** 重置访问子组件方法 */
function formCrontReset(){
  proxy.$refs.crontabRef.clearCron();
}
/** 子组件确认回调方法 */
function crontabFill(value) {
  formData.value.cronExpression = value;
}

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