本文共 4544 字，大约阅读时间需要 15 分钟。

这里以 互亿无线 的为例。

逻辑上为，自己的java服务器生成随机数，然后发给那个 手机短信厂家，厂家把这个随机数发给用户手机。用户提交这个验证码后，再对比。

这里互亿无线，的接口有点坑，用http，而且直接明文传输。不过还好的是，可以绑定服务器IP地址。这样也还算安全

程序运行截图如下：

输入手机号，点击获取手机验证码，获取后，点击登录，服务器那边判断，即可。

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;@WebServlet(value = "/loginDemo")public class LoginServlet extends HttpServlet {    public void doGet(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        this.doPost(request, response);    }    public void doPost(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        //1. 得到数据        String inCode = request.getParameter("mobile_code").toString().toLowerCase();        String valiCode = request.getSession().getAttribute("valiCode").toString().toLowerCase();        //2. 验证是否正确        if(inCode.equals(valiCode)){            response.sendRedirect("success.jsp");        }        else{            String url = request.getHeader("Referer");            response.sendRedirect(url);        }    }}

SMSServlet.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.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.HttpURLConnection;import java.net.URL;@WebServlet(value = "/sms")public class SMSServlet extends HttpServlet {    public void doGet(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        this.doPost(request, response);    }    protected void doPost(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException{        // 接口类型：互亿无线触发短信接口，支持发送验证码短信、订单通知短信等。        // 账户注册：请通过该地址开通账户http://sms.ihuyi.com/register.html        // 注意事项：        //（1）调试期间，请使用用系统默认的短信内容：您的验证码是：【变量】。请不要把验证码泄露给其他人。；        //（2）请使用APIID（查看APIID请登录用户中心->验证码短信->产品总览->APIID）及 APIkey来调用接口；        //（3）该代码仅供接入互亿无线短信接口参考使用，客户可根据实际需要自行编写；        String postUrl = "http://106.ihuyi.cn/webservice/sms.php?method=Submit";        int mobile_code = (int)((Math.random()*9+1)*100000); //获取随机数        request.getSession().setAttribute("valiCode", mobile_code);        String account = "xxxxxxxxxx"; //查看用户名是登录用户中心->验证码短信->产品总览->APIID        String password = "xxxxxxxxxxxxxxxxxxxxxxx";  //查看密码请登录用户中心->验证码短信->产品总览->APIKEY        String mobile = request.getParameter("mobile");        String content = new String("您的验证码是：" + mobile_code + "。请不要把验证码泄露给其他人。");        try {            URL url = new URL(postUrl);            HttpURLConnection connection = (HttpURLConnection) url.openConnection();            connection.setDoOutput(true);//允许连接提交信息            connection.setRequestMethod("POST");//网页提交方式“GET”、“POST”            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");            connection.setRequestProperty("Connection", "Keep-Alive");            StringBuffer sb = new StringBuffer();            sb.append("account="+account);            sb.append("&password="+password);            sb.append("&mobile="+mobile);            sb.append("&content="+content);            OutputStream os = connection.getOutputStream();            os.write(sb.toString().getBytes());            os.close();            String line, result = "";            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "utf-8"));            while ((line = in.readLine()) != null) {                result += line + "\n";            }            in.close();            response.setCharacterEncoding("utf-8");            response.getWriter().write(result);        } catch (IOException e) {            e.printStackTrace(System.out);        }    }}

web.xml

       
    
     Archetype Created Web Application
    
   

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>    
   
    
    手机    
    
    
    
    手机验证码    
    
    
    
    
    
    
    
   

success.jsp

<%--  Created by IntelliJ IDEA.  User: cff  Date: 2020/2/2  Time: 11:15  To change this template use File | Settings | File Templates.--%><%@ page contentType="text/html;charset=UTF-8" language="java" %>    
SUCCESS

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