//搶紅包相關(guān)
 view_moneysure: function () {
  var that = this;
  wx.request({
   url: app.globalData.baseurl +'api/wxopen/applet/grab',//這個(gè)鏈接是后端寫的 
   header: {
    'Content-Type': 'application/x-www-form-urlencoded'
   },
   data: {
    openid: app.globalData.openid,
    auth: app.globalData.pcUserInfo.auth
   },
   method: 'POST',
   success: function (response) {
    console.log(response);
    if (response.data.status==1){
     that.setData({
      paymsg: response.data.total_amount+'元\n現(xiàn)金紅包',
      paymsg2: '恭喜您\n成功領(lǐng)取下單紅包獎(jiǎng)勵(lì)'
     })
    }else{
     that.setData({
      paymsg: '領(lǐng)取失敗\n'+response.data.msg,
      paymsg2: '非常抱歉\n如不不明，請聯(lián)系客服'
     })
    }

   },
   fail: function (res) {
    console.log(response);
    that.setData({
     paymsg: '領(lǐng)取失敗'
    })
   }
  })
 },
 showHb: function () {
  this.setData({
   showFlag: 1
  })
 },
 openHb: function () {
  this.setData({
   paymsg: '',
   paymsg2: ''
  })
  this.view_moneysure()
  var _self = this;
  _self.setData({
   _num: 1
  })
  setTimeout(function () {
   _self.setData({
    _num: 0,
    showFlag: 0,
    bghide: 1
   })
  }, 1000)

 },
 closeHb:function(){
  this.setData({
   bghide:0
  })
 },

<button class="btn" bindtap="showHb">領(lǐng)紅包</button>

<view class="draw-list {{showFlag == 1? 'active':''}}">
 <image bindtap="openHb" class="{{_num==1?'active':''}}" src="http://www.17sucai.com/preview/1/2017-11-02/hb/image/open.png"></image>
</view>

<view id="receive1" class="win1 {{bghide==1?'active':''}}">
  <view class="openhb {{bghide==1?'active':''}}">
    <view class="winBody2">
      <view class="receive1-bg1">
       <view class="receive1-head">
        <text>{{paymsg}}</text>
       </view>
       <view class="receive1-body"><text>{{paymsg2}}</text></view>
       <button class="receive1-but1" bindtap="closeHb">確定</button>
       <view class="receive1-bg2"></view>
     </view>
   </view>
  </view>
</view>

/*
 * 企業(yè)付款到零錢
 **/
public function weixin_pay_person($re_openid)
{
  $obj = new WxopenWechatService();
  // 請求參數(shù)
  $data['mch_appid'] = WxopenWechatConfig::$init_config_applet['appid'];//商戶號
  $data['mchid'] = WxopenWechatConfig::$compay_config['mch_id'];//商戶賬號appid
  $data['nonce_str'] = $this->get_unique_value();// 隨機(jī)字符串
  //商戶訂單號，可以按要求自己組合28位的商戶訂單號
  $data['partner_trade_no'] = $this->get_tradeno($data['mchid']);
  $data['openid'] = $re_openid;//用戶openid
  $data['check_name'] = 'NO_CHECK';//校驗(yàn)用戶姓名選項(xiàng)
  $data['amount'] = '100';//金額,單位為分
  $data['desc'] = "恭喜你得到一個(gè)紅包";//企業(yè)付款描述信息
  $data['spbill_create_ip'] = $obj->get_client_ip();//IP地址

  $appsecret = WxopenWechatConfig::$compay_config['key'];
  $data['sign'] = $this->sign($data, $appsecret);
  //發(fā)紅包接口地址
  $url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";

  //將請求數(shù)據(jù)由數(shù)組轉(zhuǎn)換成xml
  $xml = $this->arraytoxml($data);
  //進(jìn)行請求操作
  $res = $this->curl($xml, $url);
  //將請求結(jié)果由xml轉(zhuǎn)換成數(shù)組
  $arr = $this->xmltoarray($res);

  if (is_array($arr)) {
    $arr['total_amount'] = $data['amount'];
  }
  //請請求信息和請求結(jié)果錄入到數(shù)據(jù)庫中
  // 輸出請求結(jié)果數(shù)組
  return $arr;
}

public function create_rand_money($start = 30, $end = 100)
{
  return mt_rand($start, $end);
}

public function sign($params, $appsecret)
{
  ksort($params);
  $beSign = array_filter($params, 'strlen');
  $pairs = array();
  foreach ($beSign as $k => $v) {
    $pairs[] = "$k=$v";
  }

  $sign_data = implode('&', $pairs);
  $sign_data .= '&key=' . $appsecret;
  return strtoupper(md5($sign_data));
}

/*
 * 生成32位唯一隨機(jī)字符串
 **/
private
function get_unique_value()
{
  $str = uniqid(mt_rand(), 1);
  $str = sha1($str);
  return md5($str);
}

/*
 * 將數(shù)組轉(zhuǎn)換成xml
 **/
private
function arraytoxml(
  $arr
) {
  $xml = "<xml>";
  foreach ($arr as $k => $v) {
    $xml .= "<" . $k . ">" . $v . "</" . $k . ">";
  }
  $xml .= "</xml>";
  return $xml;
}

/*
 * 將xml轉(zhuǎn)換成數(shù)組
 **/
private
function xmltoarray(
  $xml
) {
  //禁止引用外部xml實(shí)體
  libxml_disable_entity_loader(true);
  $xmlstring = simplexml_load_string($xml, "SimpleXMLElement", LIBXML_NOCDATA);
  $arr = json_decode(json_encode($xmlstring), true);
  return $arr;
}

/*
 * 進(jìn)行curl操作
 **/
private
function curl(
  $param = "", $url
) {
  $postUrl = $url;
  $curlPost = $param;
  //初始化curl
  $ch = curl_init();
  //抓取指定網(wǎng)頁
  curl_setopt($ch, CURLOPT_URL, $postUrl);
  //設(shè)置header
  curl_setopt($ch, CURLOPT_HEADER, 0);
  //要求結(jié)果為字符串且輸出到屏幕上
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  //post提交方式
  curl_setopt($ch, CURLOPT_POST, 1);
  // 增加 HTTP Header（頭）里的字段
  curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);
  // 終止從服務(wù)端進(jìn)行驗(yàn)證
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

  //這個(gè)是證書的位置
  curl_setopt($ch, CURLOPT_SSLCERT, __DIR__ . '/cert/apiclient_cert.pem');
  //這個(gè)也是證書的位置
  curl_setopt($ch, CURLOPT_SSLKEY, __DIR__ . '/cert/apiclient_key.pem');
  //運(yùn)行curl
  $data = curl_exec($ch);
  //關(guān)閉curl
  curl_close($ch);

  return $data;

}

public function get_tradeno($str)
{
  return $str . date("Ymd", time()) . date("His", time()) . rand(1111, 9999);
}