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    flask框架实现修改密码和免密登录功能

    作者:杨传伟 时间:2021-05-27 17:49

    修改密码功能

    数据库部分:

    #重置密码
    def reset_pass(phone,password):
        conn,cursor=get_conn()
        sql="update userdata set userpass='"+password+"' where userphone='"+phone+"'"
        try:
            print("正在修改密码...")
            resetflag=cursor.execute(sql)
            conn.commit()
            close_conn(conn,cursor)
            if(resetflag==1):
                print("修改成功")
                return 1
            else:
                print("修改失败!")
                return 0
        except:
            print("系统错误...修改密码失败!")
            return 0

    路由部分:

    #用户修改密码
    @app.route('/resetpass',methods=['GET', 'POST'])
    def resetpass():
        userphone=request.values.get('userphone')
        resetpass=request.values.get('resetpass')
        print("路由获得手机号:"+userphone+"\n")
        print("路由获得新密码:" + resetpass + "\n")
        flag=sql.reset_pass(userphone,resetpass)
        if(flag==1):
            return jsonify({"data":1})
        else:
            return jsonify({"data":0})

    html页面:

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>树懒电影---重置您的密码</title>
        <style type="text/css">
            #resetform{
                margin-top: 350px;
                margin-left: 750px;
            }
        </style>
    </head>
    <body>
        <form method="post" >
            <tr>
                <td><input type="text"  value="" placeholder="输入您的手机号码"></td>
            </tr><br>
            <tr>
                <td><input type="password"  value="" placeholder="输入您的新密码"></td>
            </tr><br>
            <tr>
                <td><input type="password"  value="" placeholder="再次输入您的新密码"></td>
            </tr><br>
            <tr>
                <td><input type="reset" value="清空"></td>
                <td><input type="button"  onclick="resetpass()" value="提交"></td>
            </tr>
        </form>
    </body>
    </html>
    <script src="../static/js/jquery.min.js"></script>
    <script type="text/javascript">
        function resetpass(){
            var userphone=document.getElementById("userphone").value
            var resetpass1=document.getElementById("resetpass1").value
            var resetpass2=document.getElementById("resetpass2").value
            var submit_flag=1
            //判空
            if((userphone.length==0)||(resetpass1.length==0)||(resetpass2.length==0)){
                submit_flag=0
                alert("请把信息填写完整!")
            }
            //判断密码一致性
            if(resetpass2!=resetpass1){
                submit_flag=0
                alert("两次填写的密码不一致")
                document.getElementById("resetpass1").focus();
            }
            //判断手机号
            if(userphone.length!=11){
                submit_flag=0
                alert("手机号码应为11位!")
                document.getElementById("userphone").focus();
            }
            var regu =  /^1[3456789]\d{9}$/
            if(!(regu.test(userphone)) ){
                submit_flag=0
                alert("手机号码格式有误!")
                document.getElementById("userphone").focus();
            }
            //判断密码格式
            if(!((resetpass1.length>=6)&&resetpass1.length<=18))
            {
                submit_flag=0
                alert("密码长度应该为6-16位!")
                document.getElementById("resetpass1").focus();
            }
                var regex = new RegExp('(?=.*[0-9])(?=.*[a-zA-Z]).{6,18}');
                part_pass=resetpass1.split(" ")
            if((!(regex.test(resetpass1))) || part_pass.length!=1)
            {
                submit_flag=0
                alert("密码为数字+英文字母 且不可以包含空格!")
                document.getElementById("resetpass1").focus();
            }
    
            //发起请求
                if(submit_flag==1)
            {
                $.ajax({
                    url:"/resetpass",
                    data:{userphone:userphone,resetpass:resetpass2},
                    success: function (data) {
                        if (data.data==1)
                        {
                            alert("密码修改成功!")
                            window.open("/",'_self')
                        }
                        else
                        {
                            alert("修改密码失败!请重试")
                        }
                    },
                    error: function (xhr, type, errorThrown) {
                        // print("ajax请求失败!")
                    }
                })
            }
            // alert(submit_flag)
        }
    </script>

    免密登录

    html代码:

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <link rel="stylesheet" href="../static/css/login.css" rel="external nofollow" >
        <script src="../static/js/jquery-1.7.2.min.js"></script>
        <script src="../static/js/register.js"></script>
        <title>树懒电影登录</title>
        <script >
        </script>
    </head>
    <body>
        <div >
            <div >
                <div ><img src="../static/img/shulan.png"></div>
                <div >
                    <div>
                        <p class="p-title">登录您的树懒电影</p>
                        <form  method="post">
                            <div class="input-d">
                                <input class="input-text" type="text" name="userphone"  placeholder="请输入您的账号">
                            </div>
                            <div class="input-d">
                                <input class="input-text" type="password" name="password"  placeholder="请输入您的密码">
                            </div>
                            <div class="div-input">
                                <div>
                                    <input type="checkbox" value=“1” class=“remeber” onclick="onClickHander(this)">
                                    <label>记住密码</label>
                                </div>
                            </div>
                            <button type="button" class="login-button" onclick="login_()">登 录</button>
                            <div class="footer"> <a href="http://127.0.0.1:5000/regis" rel="external nofollow" >注册</a> | <a href="http://127.0.0.1:5000/reset" rel="external nofollow" >忘记密码</a></div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    </body>
    </html>
    <script>
        var cb=0
        function onClickHander(obj) {
            if(obj.checked==true){
                cb=1
                // alert(cb)
            }else{
                cb=0
                // alert(cb)
            }
        }
        function login_(){
            var userphone=document.getElementById("userphone").value
            var password=document.getElementById("password").value
            // alert(cb)
            $.ajax({
                    url: "/web_login",
                    data: {
                        userphone:userphone,password:password,cb:cb
                    },
                    success: function (data) {
                        //正常验证失败弹窗
                        if (data.data == 0)
                            alert("账号或密码错误!")
                        //验证成功,返回response
                        if (data.data != 0)
                            window.open("http://127.0.0.1:5000/show","_self")
                    },
                    error: function (xhr, type, errorThrown) {
                        print("登录js,验证账号密码ajax请求失败!")
                    }
            })
        }
    </script>

    Python路由

    #免密登录
    @app.route('/web_login/',methods=['GET', 'POST'])
    def web_login():
        userphone = request.values.get('userphone')
        password=request.values.get('password')
        cb=request.values.get('cb')
        print("是否记住密码: "+cb)            #cb的返回值类型是 str 字符串
        # print(type(cb))
        print("登录账号:"+userphone+"   "+"密码:"+password)
        res=sql.web_login(userphone,password)
        if(res==True):
            session['userphone'] = userphone
            if(cb=="1"):
                print("开始存储cookie登录账号:" + userphone + "   " + "密码:" + password)
                resp = make_response('储存cookie')
                resp.set_cookie('cookphone', userphone, max_age=3600 * 24 * 15)
                resp.set_cookie('cookpass', password, max_age=3600 * 24 * 15)
                print("登录成功且用户选择记住密码,返回response")
                return resp                   #登录成功且用户选择记住密码,返回response
            else:
                print("登录成功 返回 1 状态码")
                return jsonify({"data": 1})  # 登录成功 返回 1 状态码
        else:
            print("登录失败   返回 0 状态码")
            return jsonify({"data":0})  #登录失败   返回 0 状态码

    数据库验证登录

    # 用户(web)登录验证
    def web_login(userphone, password):
        cursor = None
        conn = None
        res=[]
        if(userphone==None or password==None):
            return False
        conn, cursor = get_conn()
        sql = "select userphone,userpass from userdata where '"+userphone+"'=userphone and '"+password+"'=userpass "
        res=query(sql)
        conn.commit()
        if(len(res)==0):
            print("登陆失败(WEB)")
            close_conn(conn, cursor)
            return False
        else:
            close_conn(conn, cursor)
            print("登陆成功(WEB)")
            return True
    js
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