//这种方式是将sms.properties里的值注入到属性中

     @Value("${sms.username}")

     private String username;

     @Value("${sms.password}")

     private String password;

     @Value("${sms.apiKey}")

     private String apiKey;

     @Value("${sms.url}")

     private String url;

     @Override

     public void sendVerifyCode(String phoneNumber) {

         // 首先的到session中VerifyCodeVo

         VerifyCodeVO vc = UserContext.getVerifyCode();

         if (vc == null // 表示没有发过验证码    如果已经发送了要判断两次发送之间的时间间隔

                 || (vc != null && DateUtil.getSecondsBetweenDates(vc.getSendTime(),new Date())

                           >= BidConst.SEND_VERIFYCODE_INTERVAL)) {

             // 生成一个验证码

             String code = UUID.randomUUID().toString().substring(0, 4);

             try {

                 // 创建一个URL对象

                 URL targetUrl = new URL(this.url);

                 // 从URL对象中获得一个连接对象

                 HttpURLConnection conn = (HttpURLConnection) targetUrl.openConnection();

                 // 设置请求方式 注意这里的POST或者GET必须大写

                 conn.setRequestMethod("POST");

                 // 设置POST请求是有请求体的

                 conn.setDoOutput(true);

                 // 拼接发送的短信内容

                 StringBuilder params = new StringBuilder(100)

                         .append("username=").append(username)

                         .append("&password=").append(password)

                         .append("&apikey=").append(apiKey).append("&mobile=")

                         .append(phoneNumber).append("&content=")

                         .append("您的验证码是:").append(code).append(",有效时间是:")

                         .append(BidConst.VERIFYCODE_VALID_TIME).append("秒!");

                 // 写入参数

                 conn.getOutputStream().write(params.toString().getBytes());

                 // 读入响应

                 String response = StreamUtils.copyToString(

                         conn.getInputStream(), Charset.forName("UTF-8"));

                 // 发送成功 以success开头

                 if (response.startsWith("success")) {

                    // 构建一个vo对象 将vo放入session中

                     vc = new VerifyCodeVO(phoneNumber, code, new Date());

                     UserContext.putVerifyCode(vc);

                 }else{

                     throw new RuntimeException();

                 }

                 // 构建一个vo对象 将vo放入session中

 //                vc = new VerifyCodeVO(phoneNumber, code, new Date());

 //                UserContext.putVerifyCode(vc);

              System.out.println("手机号" +phoneNumber +"验证码：" + code );

             } catch (Exception e) {

                 e.printStackTrace();

                 throw new RuntimeException("发送短信失败");

             }

         } else {

             throw new RuntimeException("发送过于频繁");

         }

     }

 sms.username=admin

 sms.password=admin

 sms.url=http://172.16.71.27:8082/send.do

 sms.apiKey=admin

     @RequestMapping("/send")

     @ResponseBody

     public String send(String username, String password, String apikey, String mobile, String content) {

         System.out.println("发送短信给手机：" + mobile + "，发送短信内容为：" + content);

         return "success"; 
     }