微信支付开发订单查询实例

因为某一方技术的原因，可能导致商户在预期时间内都收不到最终支付通知，此时商户可以通过该API来查询订单的详细支付状态。

订单查询API的URL为：

rush:xhtml;"> https://api.weixin.qq.com/pay/orderquery?access_token=xxxxxx

URL中的参数只包含目前微信公众平台凭证access_token，而订单查询的真正数据是放在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" }

上述内容参数说明如表所示。

cope="col">参数查询订单的关键信息数据，包含第三方唯一订单号out_Trade_no、财付通商户身仹标识partner（即前文所述的partnerid）、签名sign，其中sign是对参数字典序排序并使用&联合起来，最后加上&key=partnerkey（唯一分配），进行md5运算，再转成全大写，最终得到sign生成方法中所讲的签名方式生成的，参加签名字段为：appid、appkey、package、timestamp；方法（不计入签名生成）；

二、实现细节

1. 获得access token

这个很容易，参考微信公众平台开发(26) ACCESS TOKEN

代码如下：

rush:PHP;"> $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. 参数生成

appid: 直接赋值

timestamp：程序直接获取

rush:PHP;"> $timestamp = time();

sign_method：这里为sha1

难点1：package 值的获得

先要获得sign

sign是out_Trade_no，partner，key(partnerkey)三项信息的字典序排序，再MD5运算，再转为大写

rush:PHP;"> $sign= strtoupper(md5("out_Trade_no=JfuKdiBig4zZnE4n&partner=1234567890&key=ebf5cf381de2d716d432bfda34fa9e57"));

package 是查询订单的关键信息数据，包含第三方唯一订单号 out_Trade_no、财付通商户身仹标识 partner（即前文所述的 partnerid）、签名 sign

rush:PHP;"> $package = "out_Trade_no=JfuKdiBig4zZnE4n&partner=1234567890&sign=".$sign;

难点2：获得app_signature

app_signature 依然是根据支付签名（paySign）生成 方法中所讲的签名方式生成的，参加签名字段为：appid、appkey、package、timestamp；

get_biz_sign($obj);

这样各项参数都获得了

3.提交查询

rush:PHP;"> $jsonmenu = ' { "appid" : "wx0000000000000000","package" : "'.$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);

完整代码如下所示：

//1. 获取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.准备参数
$timestamp = time();
$sign= strtoupper(md5("out_trade_no=JfuKdiBig4zZnE4n&partner=1234567890&key=asdfasdfasdfasdfasdfasdfasdfasdf"));
$package = "out_trade_no=JfuKdiBig4zZnE4n&partner=1234567890&sign=".$sign;

//2.1构造最麻烦的app_signature
$obj['appid'] = "wx0000000000000000";
$obj['appkey'] = "8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6kxCRvdJENpWpw8mruTNOGeX8OVUlIYxIyw6k";
$obj['package'] = $package;
$obj['timestamp'] = $timestamp;
$WxPayHelper = new WxPayHelper();
//get_biz_sign函数受保护，需要先取消一下，否则会报错
$app_signature = $WxPayHelper->get_biz_sign($obj);

//3. 将构造的json提交给微信服务器，查询
$jsonmenu = '
{
"appid" : "wx0000000000000000",$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、订单结果

上述程序执行后，获得订单结果如下

rush:PHP;"> { "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": "" } }

各个字段的含义如表所示