django-forms表单验证

django生成登录随机图片验证码：http://www.cnblogs.com/wupeiqi/articles/4786251.html

def insert(request):
    # print("email",request.POST.get("email"))
    if request.method=="POST":
        print(time.strftime("%Y-%m-%d %H:%M:%S"))
        # login_tmp.objects.update(lastTime=datetime.datetime.now()+datetime.timedelta(hours=2))
        # login_tmp.objects.update(firstTime=datetime.datetime.now())
        rel=BaseResult()
        obj = MyformsEmail(request.POST)
        if obj.is_valid():
            print(time.strftime("%Y-%m-%d %H:%M:%S"),"forms is ok")
            isOkData=obj.clean()
            email =isOkData["emailss"]

            # 生成6位的0-9的随机数字，并转换成字符串  生成验证码
            random_str = "".join([str(random.randint(0, 9)) for i in range(6)])
            yanzheng=login_tmp.objects.filter(email=email,tmpType='')
            if yanzheng.count():
                timenow=datetime.datetime.now()
                print(timenow, "yanzheng is ok")
                # login_tmp.object(es.filter(lastTime__gt=F("firstTime")+0.5).update(times=0)
                # 获取一个当前时间减去一小时的时间，用于判断提交请求的时间间隔是否合法
                thisTime = datetime.datetime.now() + datetime.timedelta(hours=-1)
                print("thistime:",thisTime, "datatime",datetime.datetime.now())
                if yanzheng.filter(firstTime__lt=thisTime).count():
                    print("okokokokokokokokok")
                    try:
                        # objEmail=sendemail.Send_email()
                        # objEmail.send_mail(email,random_str)
                        yanzheng.update(tmp_num=random_str, firstTime=timenow, lastTime=timenow, times='')
                        rel.supmary="验证码发送成功"
                        rel.code=''
                    except Exception as e:
                        rel.data = "验证码发送失败"
                    return HttpResponse(json.dumps(rel.__dict__))

                if yanzheng.filter(firstTime__gt=thisTime,times__gt=5).count():
                    rel.error = "1小时内只可以请求5次验证码"
                    rel.status=False
                    print(rel.error)
                    return HttpResponse(json.dumps(rel.__dict__))

                else:
                    print(time.strftime("%Y-%m-%d %H:%M:%S"), "yanzheng.filter is ok")
                    try:
                        print(email)
                        print(random_str)
                        # objEmail=sendemail.Send_email()
                        # objEmail.send_mail(email,random_str)
                        yanzheng.update(times=F("times") + 1, tmp_num=random_str,lastTime=datetime.datetime.now())
                        rel.data='验证码发送成功'
                        print(rel.data)
                    except Exception as e:
                        rel.data = e
            else:
                try:

                    login_tmp.objects.create(email=email,tmp_num=random_str,times=1,tmpType=1)
                except Exception as e:
                    rel.data="验证码发送失败"
                return HttpResponse(json.dumps(rel.__dict__))
        else:
            # rel_myform=obj.errors.as_json()
            # rel_myform=obj.errors.as_json()
            rel_myform=obj.errors['emailss'][0]

            print(rel_myform)
            rel.status=False
            # rel.error=rel_myform['emailss'][0]['message']
            rel.error=rel_myform

            print("rel_myform:",rel_myform)
            print(rel)

        return HttpResponse(json.dumps(rel.__dict__))

HTML

            <div class="login-input" style="position: relative; ">
                    <span class="insert_err hide" id="insert_err" style="font-size: 10px;color: red">报错--</span><br>
                    <select style="width: 205px;height: 30px;border: 1px solid #CDDDEF;padding: 5px 5px;">
                        <option>中国（+86）</option>
                        <option>中国香港（+852）</option>
                        <option>中国澳门（+853）</option>
                        <option>中国台湾（+886）</option>
                    </select><br><br>

                    <input style="width: 115px;height: 20px" type="email" name="emaisl" id="emails" placeholder="邮箱">
                    <button id="emailBt">获取验证码</button><br><br>
{#                <--#}
{#                    <input style="width: 115px;height: 20px" type="text" name="phonenumber" placeholder="手机号">#}
{#                    <button id="phoneBt">获取验证码</button>#}
{#                    <br>#}
{#                    <span style="font-size: 10px;margin-left: 40px">收不到短信?&nbsp;&nbsp;&nbsp;&nbsp; <a href="javascript:;">获取语音验证码</a></span>-->#}
{#                    <br><br>#}
                    <input style="width: 200px;height: 20px" type="text" name="code" placeholder="验证码" id="tmpNum"><br><br>
                    <input style="width: 200px;height: 20px" type="password" name="password" placeholder="密码" id="passwd"><br><br>

                <button class="loginNext" id="loginNext"> 下一步</button>

            </div>

JavaScript OR  jQuery

    function insert() {
        $("#emailBt").click(function () {
            //alert($("#email").val());
            //console.log($("#emails").val());

            $.ajax({
                url:"/insert/",
                data:{emailss:$("#emails").val()},
                //dataType:JSON,
                type:"POST",
                success:function (rel) {

                    console.log(rel);
                    var rel_data=JSON.parse(rel);
                    if (rel_data.status){
                        console.log(rel.error);
                        console.log(rel_data.error);
                        $("#emails").attr("disabled","disabled");
                        $("#insert_err").html('验证码发送成功');
                        alert("验证码发送成功");

                    }else{
                        //var err=JSON.parse(rel_data.error);
                        var err_msg=rel_data.error;
                        console.log(err_msg);
                        $("#insert_err").attr("color","red").removeClass("hide").html(err_msg);

                    }

                }

            })

        });