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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

       
    
     Archetype Created Web Application
    
   

index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>            
   
    
    
        
             
             
         
    
   

success.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>    
SUCCESS

porn.xml

   
       
    
     4.0.0
        
    
     org.example
        
    
     wxDemo
        
    
     1.0-SNAPSHOT
        
    
     war
        
            
                 
      
       com.alibaba
                  
      
       fastjson
                  
      
       1.2.62
              
             
                 
      
       org.apache.httpcomponents
                  
      
       httpcore
                  
      
       4.4.5
              
             
                 
      
       org.apache.httpcomponents
                  
      
       httpclient
                  
      
       4.5.11
              
         
    
   

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