java实现手机短信验证的基本思路

function sendCaptcha(tel) {  

    console.log("sendCaptcha: tel = " + tel);  

    $.ajax({  

      type: 'post',  

      url: '/sms/captcha/' + tel,  

      dataType: "json",  

      success: function (data) {  

        console.log("sendCaptcha ==> success: data = " + eval(data));  

        if (data) {  

          countdown();  

          b_code = false;  

        } else {  

          alert("您发送的频率过快!");  

        }  

      },  

      error: function (data) {  

        console.log("sendCaptcha ==> error: data = " + eval(data));  

        alert("网络超时");  

        clearTimeout(t);  

        b_code = true;  

        var msg = "获取验证码";  

        $("#code").text(msg);  

        c = 60;  

      }  

    });  

  }  

@RequestMapping(value = "captcha/{recPhoneNum}", method = RequestMethod.POST)  

  public Object getSmsCaptcha(ModelMap model, @PathVariable("recPhoneNum")String recPhoneNum) {  

    String responseBody = null;  


    /* 这里验证手机号是否被注册 */


   // 生成验证码

    String captcha = Generator.generateCaptcha();  


   // 第三方短信通信接口参数设置

   req.setReceive(recPhoneNum);

    try {  

     // 发送请求

      responseBody = req.send();

     // 将验证码放入session

      model.addAttribute("captcha", captcha);  

     // 得到结果

      responseBody = rsp.getBody();  

      log.debug("getSmsCaptcha: responseBody = " + responseBody);  

      if (rsp.getResult() != null) {  

        model.addAttribute("success_response", rsp.getResult());  

      } else {  

        model.addAttribute("error_response", rsp.getSubMsg());  

      }  

    } catch (ApiException e) {  

      log.error("getSmsCaptcha :" + e.getErrMsg());  

    }  

    // 解析结果

    if (successJson != null) {  

      successJson = successJson.getJSONObject("result");  

      return successJson.getBoolean("success");  

    } else {  

      return false;  

    }  

  }  

// 从session取出验证码
String captcha = session.getAttribute("captcha");
// 比较
if (reqCaptcha.equals(captcha))
// 相同通过，则无效化验证码
session.setAttribute("captcha", null);

else
// 不通过并提示无效验证码