vue.js写的一个表单验证示例

new_gist_file.js

var mobileRE = /^(((13[0-9]{1})|(14[57]{1})|(15[0-9]{1})|(17[678]{1})|(18[0-9]{1}))+\d{8})$/;
var passwordRE = /^[A-Za-z0-9]{6,20}$/;
var BASE_PATH = '${basePath}';
var j_captchaUrl = '${basePath}/jcaptcha'; // 获取验证码的后端地址
var app = new Vue({
  el: '#app',

  data: {
    mobile: '',
    j_captcha: '',
    vaildCode: '',
    password: '',
    conpassword: '',
    j_captchaUrl: j_captchaUrl
  },

  computed: {
    validation: function() {
      return {
        mobile: mobileRE.test(this.mobile),
        j_captcha: !!this.j_captcha.trim(),
        vaildCode: !!this.vaildCode.trim(),
        password: passwordRE.test(this.password),
        conpassword: passwordRE.test(this.conpassword)
      }
    },
    isValid: function() {
      var validation = this.validation;
      return Object.keys(validation).every(function(key) {
        console.log('[' + key + ']' + validation[key]);
        return validation[key];
      })
    }
  },

  methods: {
    // 用户注册
    register: function() {
      if (this.password !== this.conpassword) {
        alert('两次输入密码不一致，请重新输入！');
        return false;
      }

      if (this.isValid) {
        $.ajax(BASE_PATH + '/doregister', {
          data: {
            mobile: this.mobile,
            vaildCode: this.vaildCode,
            password: this.password
          },
          dataType: 'json',
          type: 'post',
          timeout: 10000,
          success: function(data) {
            if (data.success) {
              // 3秒后自动跳转到首页！
              setTimeout(function() {
                window.location.href = BASE_PATH;
              },
              3000);
            } else {
              if (data.respinfo) {
                alert(data.respinfo);
              } else {
                alert('注册失败！');
              }
            }
          },
          error: function(xhr, type, errorThrown) {
            console.log(type);
            alert('注册失败！');
          },
          beforeSend: function() {},
          complete: function() {}
        });
      } else {
        if (!this.validation.mobile) {
          alert('请输入有效的手机号码！');
        } else if (!this.validation.j_captcha) {
          alert('请输入图片验证码！');
        } else if (!this.validation.vaildCode) {
          alert('请输入短信验证码！');
        } else if (!this.validation.password) {
          alert('请输入有效的密码，格式为6至20位的字母和数字！');
        } else if (!this.validation.conpassword) {
          alert('请输入有效的密码，格式为6至20位的字母和数字！');
        }
      }
    },
    // 发送短信验证码
    send: function() {
      if (this.validation.mobile) {
        // 调用倒计时插件
        $('#btn-code').timer();

        $.ajax(BASE_PATH + '/doSendRegVaild', {
          data: {
            mobile: this.mobile
          },
          dataType: 'json',
          type: 'post',
          timeout: 10000,
          success: function(data) {
            if (data.success) {
              if (data.respinfo) {
                alert(data.respinfo);
              } else {
                alert('验证码获取成功！');
              }
            } else {
              if (data.respinfo) {
                alert(data.respinfo);
              } else {
                alert('验证码获取失败！');
              }
            }
          },
          error: function(xhr, type, errorThrown) {
            console.log(type) alert('验证码获取失败！');
          },
          beforeSend: function() {},
          complete: function() {}
        });
      } else {
        alert('请输入有效的手机号码！');
      }
    },
    // 检测输入的图片验证码是否正确
    check: function() {
      var self = this;
      $.ajax(BASE_PATH + '/verifycaptcha', {
        data: {
          j_captcha: this.j_captcha
        },
        dataType: 'json',
        type: 'get',
        timeout: 10000,
        success: function(data) {
          console.log(data.success);
          if (data.success) {

          } else {
            alert('图片验证码输入错误！');
            self.j_captcha = ''self.changej_captcha();
          }
        },
        error: function(xhr, type, errorThrown) {
          console.log(type);
          alert('验证码获取失败！');
        },
        beforeSend: function() {},
        complete: function() {}
      });
    },
    // 重新获取验证码
    changej_captcha: function() {
      this.j_captchaUrl = j_captchaUrl + '?' + Math.random();
    },
  }
})

后端校验思路是怎么样的？
是否后端有cookiesid？或者通过传入的Math.random()