滑动验证码

一,使用极验的滑动验证

  1)先看下效果

  

二,注册后就可以获取到ID 与KEY(用于获取验证码,与校验验证码)

三,页面

<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>gt-node-sdk-demo</title>
    <style>
        body {
            margin: 50px 0;
            text-align: center;
            font-family: "PingFangSC-Regular", "Open Sans", Arial, "Hiragino Sans GB", "Microsoft YaHei", "STHeiti", "WenQuanYi Micro Hei", SimSun, sans-serif;
        }
        .inp {
            border: 1px solid #cccccc;
            border-radius: 2px;
            padding: 0 10px;
             278px;
            height: 40px;
            font-size: 18px;
        }
        .btn {
            border: 1px solid #cccccc;
            border-radius: 2px;
             100px;
            height: 40px;
            font-size: 16px;
            color: #666;
            cursor: pointer;
            background: white linear-gradient(180deg, #ffffff 0%, #f3f3f3 100%);
        }
        .btn:hover {
            background: white linear-gradient(0deg, #ffffff 0%, #f3f3f3 100%)
        }
        #captcha1,
        #captcha2 {
             300px;
            display: inline-block;
        }
        .show {
            display: block;
        }
        .hide {
            display: none;
        }
        #notice1,
        #notice2 {
            color: red;
        }
        label {
            vertical-align: top;
            display: inline-block;
             80px;
            text-align: right;
        }
        #wait1, #wait2 {
            text-align: left;
            color: #666;
            margin: 0;
        }
    </style>
</head>
<body>
<form action="loginGee" method="post">
    <div>
        <label for="username1">用户名:</label>
        <input class="inp" id="username1" type="text" value="极验验证">
    </div>
    <br>
    <div>
        <label for="password1">密码:</label>
        <input class="inp" id="password1" type="password" value="123456">
    </div>
    <br>
    <div>
        <label>完成验证:</label>
        <div id="captcha1">
            <p id="wait1" class="show">正在加载验证码......</p>
        </div>
    </div>
    <br>
    <p id="notice1" class="hide">请先完成验证</p>
    <input class="btn" id="submit1" type="submit" value="提交">
</form>

<!-- 注意,验证码本身是不需要 jquery 库,此处使用 jquery 仅为了在 demo 使用,减少代码量 -->
<script src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.js"></script>

<!-- 引入 gt.js,既可以使用其中提供的 initGeetest 初始化函数 -->
<script src="js/gt.js"></script>

<script>
    var handler1 = function (captchaObj) {
        $("#submit1").click(function (e) {
            var result = captchaObj.getValidate();
            if (!result) {
                $("#notice1").show();
                setTimeout(function () {
                    $("#notice1").hide();
                }, 2000);
                e.preventDefault();
            }
        });
        // 将验证码加到id为captcha的元素里,同时会有三个input的值用于表单提交
        captchaObj.appendTo("#captcha1");
        captchaObj.onReady(function () {
            $("#wait1").hide();
        });
        // 更多接口参考:http://www.geetest.com/install/sections/idx-client-sdk.html
    };
    $.ajax({
        url: "getGee", // 加随机数防止缓存
        type: "get",
        dataType: "json",
        success: function (data) {
            // 调用 initGeetest 初始化参数
            // 参数1:配置参数
            // 参数2:回调,回调的第一个参数验证码对象,之后可以使用它调用相应的接口
            initGeetest({
                gt: data.gt,
                challenge: data.challenge,
                new_captcha: data.new_captcha, // 用于宕机时表示是新验证码的宕机
                offline: !data.success, // 表示用户后台检测极验服务器是否宕机,一般不需要关注
                product: "float", // 产品形式,包括:float,popup
                 "100%"
            }, handler1);
        }
    });
</script>
</body>
</html>

四,引用jar包,与工具类

  1)依赖,导入官方提供的jar包到maven项目

<dependency>
        <groupId>java</groupId>
        <artifactId>json</artifactId> 
        <version>1.0.0</version>
        <systemPath>${project.basedir}/src/main/webapp/WEB-INF/lib/java-json.jar</systemPath>
        <scope>compile</scope> 
    </dependency>
    
    <dependency>
        <groupId>servlet</groupId>
        <artifactId>api</artifactId> 
        <version>1.0.0</version>
        <systemPath>${project.basedir}/src/main/webapp/WEB-INF/lib/servlet-api.jar</systemPath>
        <scope>compile</scope> 
    </dependency>

  2)引入工具类

  把官方demo中sdk下的 GeetestLib 放在你项目的工具包中

五,调用

  

//获取验证码
    @RequestMapping("getGee")
    public void getGee(HttpServletRequest request,HttpServletResponse response) {
        
        GeetestLib gtSdk = new GeetestLib("你的id", "你的key", true);
        
        String resStr = "{}";
        
        String userid = "test";
        
        HashMap<String, String> param = new HashMap<String, String>();
        
        param.put("uid", "12");
        
        int gtServerStatus = gtSdk.preProcess(param);
        
        //将服务器状态设置到session中
        request.getSession().setAttribute(gtSdk.gtServerStatusSessionKey, gtServerStatus);
        //将userid设置到session中
        request.getSession().setAttribute("userid", userid);
        
        resStr = gtSdk.getResponseStr();
        
        PrintWriter out=null;
        try {
            out = response.getWriter();
        } catch (IOException e) {
            e.printStackTrace();
        }
        out.println(resStr);
    }
    //验证是否通过
    @RequestMapping("loginGee")
    public void loginGee(HttpServletRequest request,HttpServletResponse response) {
        
        GeetestLib gtSdk = new GeetestLib("你的id", "你的key", true);
        
        String challenge = request.getParameter(GeetestLib.fn_geetest_challenge);
        String validate = request.getParameter(GeetestLib.fn_geetest_validate);
        String seccode = request.getParameter(GeetestLib.fn_geetest_seccode);
        
        
        //从session中获取gt-server状态
        int gt_server_status_code = (Integer) request.getSession().getAttribute(gtSdk.gtServerStatusSessionKey);
        
        //从session中获取userid
        String userid = (String)request.getSession().getAttribute("userid");
        
        HashMap<String, String> param = new HashMap<String, String>(); 
        param.put("user_id", userid); //网站用户id
        
        int gtResult = 0;
        if (gt_server_status_code == 1) {
            //gt-server正常,向gt-server进行二次验证
                
            gtResult = gtSdk.enhencedValidateRequest(challenge, validate, seccode, param);
            System.out.println(gtResult);
        } else {
            // gt-server非正常情况下,进行failback模式验证
                
            System.out.println("failback:use your own server captcha validate");
            gtResult = gtSdk.failbackValidateRequest(challenge, validate, seccode);
            System.out.println(gtResult);
        }

        if (gtResult == 1) {
            // 验证成功
            System.out.println("验证成功");
        }
        else {
            // 验证失败
            System.out.println("验证失败");
        
        }
    
    }
原文地址:https://www.cnblogs.com/hi-feng/p/8007197.html