用java发送短信验证码

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/wx5040257/article/details/81140484

一  简介
        短信验证码是开发过程中的一个重要的功能，百度了一下，目前提供短信服务的第三方接口有很多，常用的有以下三种：
1、秒嘀科技 - 短信接口、短信验证码、语音验证码、短信平台
最低充值120，单价0.048元/条；一次性充值36000时，单价0.036/条

2、容联云通讯_提供通话、短信、视频、呼叫中心、IM、流量等通讯能力
基础价0.06元/条；当一年期帐内余额达到30000时，单价0.045/条

3、创蓝-253.com为您的每一条短信验证码负责!
最低充值3600，单价0.06元/条；一次性充值50000时，单价0.05/条

对java接口文档的支持，三家都还不错；短信接收速度都在十秒之内（测试期间），可以接受；
个人开发者，推荐使用秒嘀科技，价格相对便宜的多，短信接收速度也在伯仲之间。

秒嘀科技官网:http://www.miaodiyun.com/index.html

二 .  完整案例

工具类SMSUtil.java

package com.code.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Random;

import org.apache.commons.codec.digest.DigestUtils;

public class SMSUtil {
	/**
	 * 请求地址url
	 */
	public static final String URL = "https://api.miaodiyun.com/20150822/industrySMS/sendSMS";

	/**
	 * 开发者注册后系统自动生成的账号，可在官网登录后查看
	 */
	public static final String ACCOUNT_SID = "9d8ee64dc19d49f7b8af8f**********";

	/**
	 * 开发者注册后系统自动生成的TOKEN，可在官网登录后查看
	 */
	public static final String AUTH_TOKEN = "b8eb0bde2ef94b369949***********";

	/**
	 * 响应数据类型, JSON或XML
	 */
	public static final String RESP_DATA_TYPE = "json";

	/**
	 * 构造通用参数timestamp、sig和respDataType
	 * 
	 * @return
	 */
	public static String createCommonParam() {
		// 时间戳
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
		String timestamp = sdf.format(new Date());

		// 签名
		String sig = DigestUtils.md5Hex(ACCOUNT_SID + AUTH_TOKEN + timestamp);

		return "&timestamp=" + timestamp + "&sig=" + sig + "&respDataType="
				+ RESP_DATA_TYPE;
	}

	// 生成一个随机字符串
	public static String generateCheckCode(int n) {
		//String chars = "0123456789";
		String chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
		char[] rands = new char[n];
		Random rd = new Random();
		for (int i = 0; i < n; i++) {
			// 0-35之间的一个随机数
			int rand = rd.nextInt(chars.length());
			rands[i] = chars.charAt(rand);
		}
		return new String(rands);
	}

	/**
	 * post请求
	 * 
	 * @param url
	 *            功能和操作
	 * @param body
	 *            要post的数据
	 * @return
	 * @throws IOException
	 */
	public static String post(String url, String body) throws IOException {
		String result = "";
		OutputStreamWriter out = null;
		BufferedReader in = null;
		try {
			URL realUrl = new URL(url);
			URLConnection conn = realUrl.openConnection();
			// 设置连接参数
			conn.setDoOutput(true);
			conn.setDoInput(true);
			conn.setConnectTimeout(5000);
			conn.setReadTimeout(20000);
			conn.setRequestProperty("Content-Type",
					"application/x-www-form-urlencoded");
			// 提交数据
			out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
			out.write(body);
			out.flush();
			// 读取返回数据
			in = new BufferedReader(new InputStreamReader(
					conn.getInputStream(), "UTF-8"));
			String line = "";
			boolean firstLine = true; // 读第一行不加换行符
			while ((line = in.readLine()) != null) {
				if (firstLine) {
					firstLine = false;
				} else {
					result += System.lineSeparator();
				}
				result += line;
			}
		} finally {
			if (out != null) {
				out.close();
			}
			if (in != null) {
				in.close();
			}
		}
		return result;
	}

	/**
	 * 发送验证码通知短信
	 * 
	 * @param to
	 *            指发给谁，手机号,如:1359875489
	 * @param code
	 *            随机验证码
	 */
	public static String send(String to, String code) throws IOException {
        //短信模板，需要登录官网设置
		String smsContent = "【*******】登录验证码：" + code + "，如非本人操作，请忽略此短信。";
		String tmpSmsContent = null;
		tmpSmsContent = URLEncoder.encode(smsContent, "UTF-8");
		String body = "accountSid=" + ACCOUNT_SID + "&to=" + to
				+ "&smsContent=" + tmpSmsContent + createCommonParam();
		// 提交请求
		String result = post(URL, body);
		System.out.println("result==>"+result);
		return result;
	}
}

后台servlet

package com.code.servlets;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.code.utils.SMSUtil;

public class CreateCodeServlet extends HttpServlet {
	private static final long serialVersionUID = -5331539499741672015L;

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

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html;charset=utf-8");
		String phone=request.getParameter("phone");
		PrintWriter out=response.getWriter();
		String code=SMSUtil.generateCheckCode(4);
		System.out.println("checkcode:"+code);
		String result="";
		try {
			result=SMSUtil.send(phone, code);
		} catch (IOException e) {
			e.printStackTrace();
		}
		HttpSession session=request.getSession();
		session.setAttribute("smsCode", new String(code));
		out.print(result);
		out.flush();
		out.close();
	}

}

result的结果是

发送错误：
result==>{"respCode":"00134","respDesc":"没有和内容匹配的模板"}
发送正确:
result==>{"respCode":"00000","respDesc":"请求成功。","failCount":"0","failList":[],"smsId":"f5d6ec80a8bc4291af8f6d9b7c6555fb"}

需要短信验证的登录界面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>用户登录</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
<style type="text/css">
    #show{ margin:auto;width:400px;}
	.code{ vertical-align: middle;}
</style>
<script src="js/jquery.min.js"></script>
<script type="text/javascript">
function jishi(num){
	var tt=window.setTimeout(btnShow,num);
}
function btnShow(){
	$("#send").removeAttr("disabled");
}
$(document).ready(function(e){
	$("#send").click(function(e){
		$(this).attr("disabled","disabled");
		jishi(10000);
		var phoneValue=$("[name=phone]").val();
		$.post("CreateCode.php","phone="+phoneValue,function(result){
			var rsJson=$.parseJSON(result);
			if(rsJson.respCode!="00000"){
				window.alert("发送失败,请稍后再试");
			}
		});
		
	});
});
</script>
</head>
  
<body>
<div id="show">
<h2>用户登陆</h2>
<form action="Login.php" method="post">
    <table border="1px">
    	<tr><td>请输入用户名:</td><td><input class="tt" type="text" name="userName" /></td></tr>
    	<tr><td>请输入密码:</td><td><input class="tt" type="password" name="passWord" /></td></tr>
    	<tr><td>请输入手机号码:</td><td><input class="tt" type="text" name="phone" /></td></tr>
    	<tr><td>请输入验证码:</td><td><input class="code" type="text" name="inputCode" />&nbsp;
    	          <input type="button" value="发送"  id="send"/></td></tr>
    	<tr><td colspan="2" align="center"><input type="submit" value="登陆"/>&nbsp;
    	    <input type="reset" value="重置"/></td></tr>
    </table>
</form>

</div>
</body>
</html>

效果图：

登录的servlet如下：

package com.code.servlets;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.code.dao.UserDao;
import com.code.dao.UserDaoImpl;

public class LoginControl extends HttpServlet {
	private static final long serialVersionUID = -907454493319619477L;

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

		doPost(request,response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out=response.getWriter();
		HttpSession session=request.getSession();
		String userName=request.getParameter("userName"); 
		String passWord=request.getParameter("passWord");
		//表单里面获取的验证码,用户输入的
		String userCode=request.getParameter("inputCode");
		userCode=userCode.toUpperCase();
		UserDao userDao=new UserDaoImpl();
		boolean flag=userDao.login(userName,passWord);
		if(flag){
			session.setAttribute("userName",userName);
			//session里面是系统生成的
			String checkCode=(String)session.getAttribute("smsCode");
			if(!checkCode.equals(userCode)){
				out.println("<script type='text/javascript'>");
				out.println("window.alert('验证码错误');");
				out.println("window.location='Login.jsp';");
				out.println("</script>");
			}else{
				response.sendRedirect("index.jsp");
			}
		}else{
			out.println("<script type='text/javascript'>");
			out.println("window.alert('用户名或密码错误');");
			out.println("window.location='Login.jsp';");
			out.println("</script>");
		}
	}
}