Java笔记-腾讯验证码平台使用实例

主要就是官方的这个图：

前端调用接口，得到腾讯发过来的几个数据，前端把这几个数据给后端，后端拿到这些数据后传给腾讯，让其判断是否正常，以及其他属性。

程序运行截图如下：

点击登录后，拖动正确进行跳转，拖动错误就重新输入

看看后台的打印：

这个是腾讯反馈的数据，response为1说明是正常，风险等级为0

程序结构如下：

源码如下：

LoginServlet.java

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URLEncoder;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;


@WebServlet(value = "/login")
public class LoginServlet extends HttpServlet{


        private static final String APP_ID = "xxxxxxxxxx";
        private static final String APP_SECRET = "xxxxxxxxxx**";
        private static final String VERIFY_URI = "https://ssl.captcha.qq.com/ticket/verify?aid=%s&AppSecretKey=%s&Ticket=%s&Randstr=%s&UserIP=%s";

        public static int verifyTicket(String ticket, String rand, String userIp) {
            CloseableHttpClient httpclient = HttpClients.createDefault();
            HttpGet httpGet;
            CloseableHttpResponse response = null;
            try {
                httpGet = new HttpGet(String.format(VERIFY_URI,
                        APP_ID,
                        APP_SECRET,
                        URLEncoder.encode(ticket, "UTF-8"),
                        URLEncoder.encode(rand, "UTF-8"),
                        URLEncoder.encode(userIp, "UTF-8")
                ));
                response = httpclient.execute(httpGet);

                HttpEntity entity = response.getEntity();
                if (entity != null) {
                    String res = EntityUtils.toString(entity);
                    System.out.println(res); // 临时输出

                    JSONObject result = JSON.parseObject(res);
                    // 返回码
                    int code = result.getInteger("response");
                    // 恶意等级
                    int evilLevel = result.getInteger("evil_level");

                    // 验证成功
                    if (code == 1) return evilLevel;
                }
            } catch (java.io.IOException e) {
                // 忽略
            } finally {
                try {
                    response.close();
                } catch (Exception ignore) {
                }
            }

            return -1;
        }


    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        this.doPost(request, response);
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        //验证
        String ticket  = request.getParameter("Ticket");
        String randstr =  request.getParameter("Randstr");
        String userIP = request.getRemoteAddr();
        verifyTicket(ticket, randstr, userIP);



        response.sendRedirect("success.jsp");
    }
}

web.xml

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
    <display-name>Archetype Created Web Application</display-name>
</web-app>

index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <title>qq</title>
    <script src="https://ssl.captcha.qq.com/TCaptcha.js"></script>
    <script type="text/javascript">
        function vail(){
            var vailCode = new TencentCaptcha('2047017221', function(res){
                if(res.ret == 0){
                    var form = document.getElementById("form1");
                    var ticketInput = document.getElementById("Ticket");
                    var randstrInput = document.getElementById("Randstr");
                    ticketInput.value = res.ticket;
                    randstrInput.value = res.randstr;
                    // console.log("res.ticket:" + res.ticket);
                    // console.log("res.randstr:" + res.randstr);
                    form.submit();
                }
                else{
                    alert("验证出错！");
                }
            });
            vailCode.show();
        }
    </script>
</head>
<body>
<form id="form1" method="post" action="login">
    <div>
        <input id="Ticket" name="Ticket" type="hidden" value="">
        <input id="Randstr" name="Randstr" type="hidden" value="">
        <input type="button" value="登录" id="btnOK" οnclick="vail()" />
    </div>
</form>
</body>
</html>

success.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h1>SUCCESS</h1>
</body>
</html>

porn.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>wxDemo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>war</packaging>

    <dependencies>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.62</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.5</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.11</version>
        </dependency>

    </dependencies>


</project>

IT1995

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Java笔记-腾讯验证码平台使用实例

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