vue+elementUI用户修改密码的前端验证

用户登录后修改密码，密码需要一定的验证规则。旧密码后端验证是否正确；前端验证新密码的规范性，新密码规范为：6-16位，至少含数字/字母/特殊字符中的两种；确认密码只需要验证与新密码是否一致；

效果图

弹窗结构

<el-dialog title="修改密码"
           :visible.sync="passDlgVisible"
           @close="passDlgClose"
           width="400px">
    <el-form :model="passForm"
             ref="passRef"
             :rules="passRules"
             hide-required-asterisk
             label-width="70px"
             size="small">
        <el-form-item label="旧密码" prop="oldPassword">
            <el-input v-model="passForm.oldPassword" show-password></el-input>
        </el-form-item>
        <el-form-item label="新密码" prop="newPassword">
            <el-input v-model="passForm.newPassword" show-password></el-input>
        </el-form-item>
        <el-form-item label="确认密码" prop="confirmPassword">
            <el-input v-model="passForm.confirmPassword" show-password></el-input>
        </el-form-item>
    </el-form>
    <span slot="footer">
            <el-button @click="passDlgVisible=false" size="small">取消</el-button>
            <el-button @click="passSave" type="primary" size="small">确认</el-button>
        </span>
</el-dialog>

form验证规则

passRules: {
	oldPassword:[{required: true, message: '请输入旧密码', trigger: 'blur'}],
    newPassword:[{validator: this.validNewPass, trigger: 'blur'}],
    confirmPassword:[{validator: this.validConfirmPass, trigger: 'blur'}]
}

验证函数

/**
 * 验证新密码
 */
validNewPass(rule, value, callback) {
    let reg = /(?!^(\d+|[a-zA-Z]+|[~!@#$%^&*?]+)$)^[\w~!@#$%^&*?]{6,16}$/
    if (value === '') {
        callback(new Error('请输入新密码'));
    } else if (!reg.test(value)) {
        callback(new Error('6-16位，至少含数字/字母/特殊字符中的两种'))
    } else {
        if (this.passForm.confirmPassword !== '') {
            this.$refs.passRef.validateField('confirmPassword');
        }
        callback();
    }
},

/**
 * 验证确认密码
 */
validConfirmPass(rule, value, callback) {
    if (value === '') {
        callback(new Error('请再次输入密码'));
    } else if (value !== this.passForm.newPassword) {
        callback(new Error('两次输入密码不一致!'));
    } else {
        callback();
    }
}

弹窗关闭后清空字段和验证

/**
 * 弹窗关闭事件
 */
passDlgClose() {
    this.passForm = {
        oldPassword: '',
        newPassword: '',
        confirmPassword: ''
    }
    this.$refs.passRef.clearValidate();
}

提交表单

passSave() {
    this.$refs.passRef.validate((valid) => {
        if (valid) {
            this.passForm.userName = this.userName
            api.user.editPass(this.passForm).then(res => {
                this.passDlgVisible = false;
            })
        } else {
            return false;
        }
    });
}