最近在做一个Vue项目,前端通过手机号、验证码登录,获取验证码按钮需要设置60s倒计时(点击一次后,一分钟内不得再次点击)。先看一下效果图:
输入正确格式的手机号码后,“获取验证码”按钮方可点击;点击“获取验证码”后,按钮进入60s倒计时,效果图如下:
效果图已经有了,接下来就上代码吧!
<el-button @click="getCode()" :class="{'disabled-style':getCodeBtnDisable}" :disabled="getCodeBtnDisable">{{codeBtnWord}}</el-button>
data() {return {loginForm: {phoneNumber: '',verificationCode: '',},codeBtnWord: '获取验证码', // 获取验证码按钮文字waitTime:61, // 获取验证码按钮失效时间}}
computed: {// 用于校验手机号码格式是否正确phoneNumberStyle(){let reg = /^1[3456789]\d{9}$/if(!reg.test(this.loginForm.phoneNumber)){return false}return true},// 控制获取验证码按钮是否可点击getCodeBtnDisable:{get(){if(this.waitTime == 61){if(this.loginForm.phoneNumber){return false}return true}return true},// 注意:因为计算属性本身没有set方法,不支持在方法中进行修改,而下面我要进行这个操作,所以需要手动添加set(){}}}
关于上面给计算属性添加set方法,可以参照//www.jb51.net/article/202496.htm
.el-button.disabled-style {background-color: #EEEEEE;color: #CCCCCC;}
getCode(){if(this.phoneNumberStyle){let params = {}params.phone = this.loginForm.phoneNumber// 调用获取短信验证码接口axios.post('/sendMessage',params).then(res=>{res = res.dataif(res.status==200) {this.$message({message: '验证码已发送,请稍候...',type: 'success',center:true})}})// 因为下面用到了定时器,需要保存this指向let that = thisthat.waitTime--that.getCodeBtnDisable = truethis.codeBtnWord = `${this.waitTime}s 后重新获取`let timer = setInterval(function(){if(that.waitTime>1){that.waitTime--that.codeBtnWord = `${that.waitTime}s 后重新获取`}else{clearInterval(timer)that.codeBtnWord = '获取验证码'that.getCodeBtnDisable = falsethat.waitTime = 61}},1000)}}
通过上面的代码,就可以实现了,如有错误,敬请指正!
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