flask+vue的前端发送与后端验证

前端数据代码

数据表示与发送

    
<view class="login_from_input form-group">
    <view class="login_from_name">用户名</view>
    <view class="login_from_fun"><input type="text" name="username" v-model="username" placeholder="请输如用户名"></view>
</view>
<view class="login_from_input form-group">
    <view class="login_from_name">密码</view>
    <view class="login_from_fun"><input type="digit" v-model="password" name="password" password="true" placeholder="请输入登录密码"></view>
</view>

<script>
    export default{
    data(){
     return {
        username:"",
        password:"",
        }
    },
    methods:{
    login(){
        uni.request({
        url:"http://127.0.0.1:5000/auth/register",
        method:"POST",
        //这里的data 后端flask可以根据变量名得到  request.form.get("username")
        data:{
            username :this.username,
            password:this.password,
        },
        header: {
            "Content-Type": "application/x-www-form-urlencoded"
        },
        success:(res) => {
            console.log(res)
        }
    })        
}

        

          
        
        
        

          

          AI 代码解读
        
      
      

后端接收数据

1.接受文件接口

@bp.route("/register" , methods=['GET','POST'])
@cross_origin()
def register():
    form = RegisterForm(request.form)
     if form.validate():
         username = form.username.data
         password = form.password.data
         user_model = UserModel(username=username,password=generate_password_hash(password),email=email)
            db.session.add(user_model)
            db.session.commit()
            return redirect("login")
        else:
            print(form.errors)
            return "fail"

        

          
        
        
        

          

          AI 代码解读
        
      
      

2.数据验证 （格式，邮箱是否已存在，验证码是否正确）

class RegisterForm(wtforms.Form):
    email = wtforms.StringField(validators=[Email(message="邮箱格式错误！")])
    captcha = wtforms.StringField(validators=[Length(min=4, max=4, message="验证码格式错误")])
    username = wtforms.StringField(validators=[Length(min=3, max=10, message="用户名格式错误")])
    password = wtforms.StringField(validators=[Length(min=6, max=20, message="密码格式错误")])
    #test = wtforms.StringField(validators=[Length(min=4,max=4,message="test信息错误")])
    #1. 邮箱是否已经被注册
    def validate_email(self,filed):
        email = filed.data
        #print(email)
        user = UserModel.query.filter_by(email = email).first()
        if user:
            raise wtforms.ValidationError(message="邮箱已经被注册")

    #2. 验证码是否正确
    def validate_captcha(self,filed):
        captcha = filed.data
        #print(captcha)
        email = self.email.data
        captcha_model = EmailCaptchaModel.query.filter_by(email=email, captcha=captcha).first()
        #captcha_model.used = True
        if not captcha_model:
            raise wtforms.ValidationError(message="邮箱或验证码错误")
        else:
            db.session.delete(captcha_model)
            db.session.commit()

        

          
        
        
        

          

          AI 代码解读