【移動應用開發(fā)技術】微信開發(fā)帶參數(shù)二維碼的示例分析

【移動應用開發(fā)技術】微信開發(fā)帶參數(shù)二維碼的示例分析

1接入/blog/474529/201607/474529-20160731001630044-1124025958.png2帶參數(shù)二維碼的作用3具體開發(fā)過程3.1獲取access_token方法

：

GET

url

：/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET{"access_token":"ACCESS_TOKEN","expires_in":7200}

1

//獲取access_token

2

function

getWechatAccessToken(){

3

$wechatInfo

=

M('wechat_info')->select();

4

$wechatInfo

=

array_reduce($wechatInfo,

create_function('$result,

$v',

'$result[$v["conf_name"]]

=

$v;return

$result;'));

5

$expireTime

=

$wechatInfo['PUBLIC_WECHAT_ACCESSTOKEN_EXPIRES']['conf_value'];

//前面不用管，是我數(shù)據(jù)庫相應設置

6

7

if

(time()

<

$expireTime){

//access_token未過期

8

return

$wechatInfo['PUBLIC_WECHAT_ACCESSTOKEN']['conf_value'];

9

}else{

//access_token過期，重新獲取10

$baseUrl

=

C('WECHAT_PUBLIC_GET_ACCESS_TOKEN');11

$url

=

str_replace("##APPSECRET##",

$wechatInfo['PUBLIC_WECHAT_APPSECRET']['conf_value'],

str_replace("##APPID##",

$wechatInfo['PUBLIC_WECHAT_APPID']['conf_value'],

$baseUrl));12

$result

=

file_get_contents($url);13

$result

=

json_decode($result,

true);14

15

if

(array_key_exists('errorcode',

$result)){

//失敗重試一次16

return

false;17

}else{18

M('wechat_info')->where(array('conf_name'

=>

'PUBLIC_WECHAT_ACCESSTOKEN'))->save(array('conf_value'

=>

$result['access_token']));19

M('wechat_info')->where(array('conf_name'

=>

'PUBLIC_WECHAT_ACCESSTOKEN_EXPIRES'))->save(array('conf_value'

=>

time()+$result['expires_in']-200));20

return

$result['access_token'];21

}22

}23

}C('WECHAT_PUBLIC_GET_ACCESS_TOKEN')

=

/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET3.2創(chuàng)建臨時二維碼3.2.1獲取ticket

請求方式：

POST

接口：/cgi-bin/qrcode/create?access_token=TOKEN

POST數(shù)據(jù)：

{"expire_seconds":

604800,

"action_name":

"QR_SCENE",

"action_info":

{"scene":

{"scene_id":

123}}}//創(chuàng)建臨時二維碼function

getTemporaryQrcode($orderId){

$accessToken

=

getWechatAccessToken();

$url

=

str_replace("##TOKEN##",

$accessToken,

C('WECHAT_PUBLIC_GET_TEMPORARY_TICKET'));

$qrcode

=

'{"expire_seconds":

1800,

"action_name":

"QR_SCENE",

"action_info":

{"scene":

{"scene_id":

'.$orderId.'}}}';

$result

=

api_notice_increment($url,

$qrcode);

$result

=

json_decode($result,

true);

return

urldecode($result['url']);

}function

api_notice_increment($url,

$data){

$ch

=

curl_init();

$header

=

"Accept-Charset:

utf-8";

curl_setopt($ch,

CURLOPT_URL,

$url);

curl_setopt($ch,

CURLOPT_CUSTOMREQUEST,

"POST");

curl_setopt($ch,

CURLOPT_SSL_VERIFYPEER,

FALSE);

curl_setopt($ch,

CURLOPT_SSL_VERIFYHOST,

FALSE);

curl_setopt($ch,

CURLOPT_HTTPHEADER,

$header);

curl_setopt($ch,

CURLOPT_USERAGENT,

'Mozilla/5.0

(compatible;

MSIE

5.01;

Windows

NT

5.0)');

curl_setopt($ch,

CURLOPT_FOLLOWLOCATION,

1);

curl_setopt($ch,

CURLOPT_AUTOREFERER,

1);

curl_setopt($ch,

CURLOPT_POSTFIELDS,

$data);

curl_setopt($ch,

CURLOPT_RETURNTRANSFER,

true);

$tmpInfo

=

curl_exec($ch);

if

(curl_errno($ch))

{

curl_close(

$ch

);

return

$ch;

}else{

curl_close(

$ch

);

return

$tmpInfo;

}

}C('WECHAT_PUBLIC_GET_TEMPORARY_TICKET')

=

/cgi-bin/qrcode/create?access_token=##TOKEN##{"ticket":"gQH47joAAAAAAAAAASxodHRwOi8vd2VpeGluLnFxLmNvbS9xL2taZ2Z3TVRtNzJXV1Brb3ZhYmJJAAIEZ23sUwMEmm3sUw==","expire_seconds":60,"url":"http:\/\/\/q\/kZgfwMTm72WWPkovabbI"}3.2.2獲取二維碼地址

請求方式：

GET

接口：/cgi-bin/showqrcode?ticket=TICKET3.3用戶掃描二維碼之后發(fā)生的事情3.3.1掃描后發(fā)生了什么用戶未關注時，進行關注后的事件推送<xml><ToUserName><![CDATA[toUser]]></ToUserName>//開發(fā)者微信號<FromUserName><![CDATA[FromUser]]></FromUserName>//發(fā)送者賬號（openid）<CreateTime>123456789</CreateTime>//消息創(chuàng)建時間（整型）<MsgType><![CDATA[event]]></MsgType>//消息類型

event<Event><![CDATA[subscribe]]></Event>//事件類型（subscribe）<EventKey><![CDATA[qrscene_123123]]></EventKey>//事件KEY值，qrscene_為前綴，后面為二維碼參數(shù)值<Ticket><![CDATA[TICKET]]></Ticket>//二維碼ticke值，可以用來換取二維碼圖片</xml>

<xml><ToUserName><![CDATA[toUser]]></ToUserName>//開發(fā)者微信號<FromUserName><![CDATA[FromUser]]></FromUserName>

//發(fā)送者賬號（openid）<CreateTime>123456789</CreateTime>//消息創(chuàng)建時間<MsgType><![CDATA[event]]></MsgType>

//消息類型event<Event><![CDATA[SCAN]]></Event>

//事件類型

event<EventKey><![CDATA[SCENE_VALUE]]></EventKey>

//事件key值，是一個32位無符號整數(shù)，即創(chuàng)建二維碼時的二維碼scene_id<Ticket><![CDATA[TICKET]]></Ticket>

//二維碼的ticke，可以用來換取二維碼圖片</xml>3.3.2我們要做些什么public

function

urlRedirect(){

$postStr

=

$GLOBALS["HTTP_RAW_POST_DATA"];

$postObj

=

simplexml_load_string($postStr,

'SimpleXMLElement',

LIBXML_NOCDATA);

$fromUsername

=

(string)$postObj->FromUserName;

$EventKey

=

trim((string)$postObj->EventKey);

$keyArray

=

explode("_",

$EventKey);

if

(count($keyArray)

==

1){

//已關注者掃描

$this->sendMessage($fromUsername,

$EventKey);

}else{//未關注者關注后推送事件

$this->sendMessage($fromUsername,

$keyArray[1]);

}

}//給用戶發(fā)送圖文消息，點擊跳轉(zhuǎn)到報價頁面

public

function

sendMessage($openid,$orderId){

$url

=

str_replace('##TOKEN##',

getWechatAccessToken(),

C('WECHAT_SEND_MESSAGE'));

$redirectUrl

=

str_replace("##ORDERID##",

$orderId,

str_replace("##OPENID##",

$openid,

C('WECHAT_REDIRECT_URL_PRE')));

$orderInfo

=

M('order')->where(array('orderid'

=>

$orderId))->field(array('totalMoney',

'savedMoney',

'roomarea'))->find();

$description

=

str_replace("##ROOMAREA##",

intval($orderInfo['roomarea']

*

1.25),

C('WECHAT_MESSAGE_BRIEF'));

$description

=

str_replace("##TOTALBUDGET##",

$orderInfo['totalMoney'],

$description);

$description

=

str_replace("##MARKETBUDGET##",

$orderInfo['totalMoney']+$orderInfo['savedMoney'],

$description);

$description

=

str_replace("##SAVEMONEY##",

$orderInfo['savedMoney'],

$description);

$dataStr

=

'{"touser":"'

.

$openid

.

'","msgtype":"news","news"