一、訂單查詢

因為某一方技術(shù)的原因，可能導(dǎo)致商戶在預(yù)期時間內(nèi)都收不到最終支付通知，此時商戶可以通過該API來查詢訂單的詳細(xì)支付狀態(tài)。

訂單查詢API的URL為：

https://api.weixin.qq.com/pay/orderquery?access_token=xxxxxx

URL中的參數(shù)只包含目前微信公眾平臺憑證access_token，而訂單查詢的真正數(shù)據(jù)是放在PostData中的，格式如下：

{
????"appid"?:?"wwwwb4f85f3a797777",
????"package"?:?"out_trade_no=11122&partner=1900090055&sign=4e8d0df3da0c3d0df38f",
????"timestamp"?:?"1369745073",
????"app_signature"?:?"53cca9d47b883bd4a5c85a9300df3da0cb48565c",
????"sign_method"?:?"sha1"}

上述內(nèi)容參數(shù)說明如表所示。

?

二、實現(xiàn)細(xì)節(jié)

1. 獲得access token

這個很容易，參考微信公眾平臺開發(fā)(26) ACCESS TOKEN

代碼如下：

$appid = "wx0000000000000000";
$appsecret = "e76050733c695748537fc4d4c21d0e2c";
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$appsecret";
$result = https_request($url);
$jsoninfo = json_decode($result, true);
$access_token = $jsoninfo["access_token"];

2. 參數(shù)生成

appid: 直接賦值

timestamp：程序直接獲取

$timestamp = time();

sign_method：這里為sha1

難點1：package 值的獲得

先要獲得sign

sign是out_trade_no，partner，key(partnerkey)三項信息的字典序排序，再MD5運算，再轉(zhuǎn)為大寫

$sign= strtoupper(md5("out_trade_no=JfuKdiBig4zZnE4n&partner=1234567890&key=ebf5cf381de2d716d432bfda34fa9e57"));

package 是查詢訂單的關(guān)鍵信息數(shù)據(jù)，包含第三方唯一訂單號 out_trade_no、財付通商戶身仹標(biāo)識 partner（即前文所述的 partnerid） 、簽名 sign

$package = "out_trade_no=JfuKdiBig4zZnE4n&partner=1234567890&sign=".$sign;

難點2：獲得app_signature

app_signature 依然是根據(jù)支付簽名（paySign）生成方法中所講的簽名方式生成的，參加簽名字段為：appid、appkey、package、timestamp；

$obj['appid']          = "wx0000000000000000";
$obj['appkey']         = "8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6k";
$obj['package']        = $package;
$obj['timestamp']      = $timestamp;
$WxPayHelper->get_biz_sign($obj);

這樣各項參數(shù)都獲得了

3.提交查詢

$jsonmenu = '{
    "appid" : "wx0000000000000000",
    "package" : "'.$package.'",
    "timestamp" : "'.$timestamp.'",
    "app_signature" : "'.$app_signature.'",
    "sign_method" : "sha1"
}
';

$url = "https://api.weixin.qq.com/pay/orderquery?access_token=".$access_token;
$result = https_request($url, $jsonmenu);
var_dump($result);

完整代碼如下所示：

include_once("WxPayHelper.php");

//1. 獲取access token
$appid = "wx0000000000000000";
$appsecret = "e76050733ce76050733ce76050733cdd";
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$appsecret";
$result = https_request($url);
$jsoninfo = json_decode($result, true);
$access_token = $jsoninfo["access_token"];


//2.準(zhǔn)備參數(shù)
$timestamp = time();
$sign= strtoupper(md5("out_trade_no=JfuKdiBig4zZnE4n&partner=1234567890&key=asdfasdfasdfasdfasdfasdfasdfasdf"));
$package = "out_trade_no=JfuKdiBig4zZnE4n&partner=1234567890&sign=".$sign;

//2.1構(gòu)造最麻煩的app_signature
$obj['appid']          = "wx0000000000000000";
$obj['appkey']         = "8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6k";
$obj['package']        = $package;
$obj['timestamp']      = $timestamp;
$WxPayHelper = new WxPayHelper();
//get_biz_sign函數(shù)受保護，需要先取消一下，否則會報錯
$app_signature  = $WxPayHelper->get_biz_sign($obj);

//3. 將構(gòu)造的json提交給微信服務(wù)器，查詢
$jsonmenu = '
{
 "appid" : "wx0000000000000000",
 "package" : "'.$package.'",
 "timestamp" : "'.$timestamp.'",
 "app_signature" : "'.$app_signature.'",
 "sign_method" : "sha1"
}
';

$url = "https://api.weixin.qq.com/pay/orderquery?access_token=".$access_token;
$result = https_request($url, $jsonmenu);
var_dump($result);

function https_request($url, $data = null){
 $curl = curl_init();
 curl_setopt($curl, CURLOPT_URL, $url);
 curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
 curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
 if (!empty($data)){
     curl_setopt($curl, CURLOPT_POST, 1);
     curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
 }
 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
 $output = curl_exec($curl);
 curl_close($curl);
 return $output;
}

三、訂單結(jié)果

上述程序執(zhí)行后，獲得訂單結(jié)果如下

{
    "errcode": 0,
    "errmsg": "ok",
    "order_info": {
        "ret_code": 0,
        "ret_msg": "",
        "input_charset": "GBK",
        "trade_state": "0",
        "trade_mode": "1",
        "partner": "1234567890",
        "bank_type": "CMB_FP",
        "bank_billno": "201405273540085997",
        "total_fee": "1",
        "fee_type": "1",
        "transaction_id": "1218614901201405273313473135",
        "out_trade_no": "JfuKdiBig4zZnE4n",
        "is_split": "false",
        "is_refund": "false",
        "attach": "",
        "time_end": "20140527194139",
        "transport_fee": "0",
        "product_fee": "1",
        "discount": "0",
        "rmb_total_fee": ""
    }
}

各個字段的含義如表所示。

如果程序有誤，會在errcode和errmsg描述出來。

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