Vue 短信验证码组件开发详解

Vue.component('timerBtn',{
  template: '<button v-on:click="run" :disabled="disabled || time > 0">{{ text }}</button>',
  props: {
    second: {
      type: Number,
      default: 60
    },
    disabled: {
      type: Boolean,
      default: false
    }
  },
  data:function () {
   return {
     time: 0
   }
  },
  methods: {
    run: function () {
     this.$emit('run');
    },
    start: function(){
     this.time = this.second;
     this.timer();
    },
    stop: function(){
     this.time = 0;
     this.disabled = false;
    },
    setDisabled: function(val){
     this.disabled = val;
    },
    timer: function () {
      if (this.time > 0) {
        this.time--;
        setTimeout(this.timer, 1000);
      }else{
       this.disabled = false;
      }
    }
  },
  computed: {
    text: function () {
      return this.time > 0 ? this.time + 's 后重获取' : '获取验证码';
    }
  }
});

<timer-btn ref="timerbtn" class="btn btn-default" v-on:run="sendCode" 
:disabled="disabled" :second="60"></timer-btn>

<timer-btn ref="timerbtn" class="btn btn-default" v-on:run="sendCode" ></timer-btn>

var vm = new Vue({
  el:'#app',
  methods:{
    sendCode:function(){
      vm.$refs.timerbtn.setDisabled(true); //设置按钮不可用
      hz.ajaxRequest("sys/sendCode?_"+$.now(),function(data){
        if(data.status){
          vm.$refs.timerbtn.start(); //启动倒计时
        }else{
          vm.$refs.timerbtn.stop(); //停止倒计时
        }
      });
    },
  }
});