一、搭建vue前端登录页面
<template>
<div style="width: 800px; margin: 5px auto; background-color: #17ecf3">
<div align="center">
<h2>用户登录</h2>
</div>
<div style="width: 60%; margin: 1px auto">
<el-form
:model="ruleForm"
:rules="rules"
ref="ruleForm"
label-width="100px"
class="demo-ruleForm"
>
<el-form-item label="用户名称:" prop="userName">
<el-input v-model="ruleForm.userName"></el-input>
</el-form-item>
<el-form-item label="密码:" prop="password">
<el-input v-model="ruleForm.password" show-password></el-input>
</el-form-item>
<el-form-item label="验证码:" prop="code" align="left">
<el-input v-model="ruleForm.code" style="width: 150px"></el-input>
<el-tag type="danger" style="font-size: 20px">{{ cCode }}</el-tag>
<el-link type="primary" @click="getCode">换一张</el-link>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="userLogin('ruleForm')"
>登录</el-button
>
<el-button @click="resetForm('ruleForm')">重置</el-button>
</el-form-item>
</el-form>
</div>
</div>
</template>
二、定义文本框输入验证码变量及生成验证码变量
data() {
return {
cCode: "",
ruleForm: {
userName: "",
password: "",
code: "",
},
};
},
三、在method中写出生成验证码的方法
getCode() {
this.cCode = "";
let codeString =
"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
let codeArray = codeString.split("");
let num = codeArray.length;
let newCodeArray = [];
for (let i = 0; i < 4; i++) {
let index = Math.floor(Math.random() * num);
newCodeArray.push(codeArray[index]);
}
this.cCode = newCodeArray.join("");
},
四、钩子函数createed中执行上述方法
created() {
this.getCode();
},
五、更换验证码只需加入超链接控件,调用此方法即可
<el-link type="primary" @click="getCode">换一张</el-link>
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