2024年最新vue+elementUI用户修改密码的前端验证_element-ui 修改密码验证，web前端开发自学网

<template>
  <el-form :model="form" :rules="rules" ref="form" label-width="100px">
    <el-form-item label="原密码" prop="oldPassword">
      <el-input type="password" v-model="form.oldPassword"></el-input>
    </el-form-item>
    <el-form-item label="新密码" prop="newPassword">
      <el-input type="password" v-model="form.newPassword"></el-input>
    </el-form-item>
    <el-form-item label="确认密码" prop="confirmPassword">
      <el-input type="password" v-model="form.confirmPassword"></el-input>
    </el-form-item>
    <el-form-item>
      <el-button type="primary" @click="submitForm">提交</el-button>
    </el-form-item>
  </el-form>
</template>
 
<script>
export default {
  data() {
    let validatePass = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码不能小于6位'));
      } else {
        callback();
      }
    };
    let validatePass2 = (rule, value, callback) => {
      if (value !== this.form.newPassword) {
        callback(new Error('两次输入密码不一致!'));
      } else {
        callback();
      }
    };
    return {
      form: {
        oldPassword: '',
        newPassword: '',
        confirmPassword: ''
      },
      rules: {
        oldPassword: [
          { required: true, message: '请输入原密码', trigger: 'blur' },
          { min: 6, max: 20, message: '长度在 6 到 20 个字符', trigger: 'blur' }
        ],
        newPassword: [
          { required: true, validator: validatePass, trigger: 'blur' }
        ],
        confirmPassword: [
          { required: true, validator: validatePass2, trigger: 'blur' }
        ]
      }
    };
  },
  methods: {
    submitForm() {
      this.$refs.form.validate(valid => {
        if (valid) {
          alert('submit!');
        } else {
          console.log('error submit!!');
          return false;
        }
      });
    }
  }
};
</script>

这段代码使用Vue和Element UI创建了一个修改密码的表单，包含了原密码、新密码和确认密码三个输入框。表单验证了密码的长度和一致性。当所有的验证通过后，会触发提交操作。这是一个典型的Web前端表单验证的例子，适用于教育用途。