1.漏油
//得到预支付交易单
Route::post('prepay_id', 'WeiXinXPayController@requestPayment');
//小程序支付回掉
Route::any('notify', 'APi\WeiXinXPayController@notifyPay');2.控制器
<?php
namespace App\Http\Controllers\APi;
use App\Http\Model\Source\Order\Order;
use App\Http\Model\Source\Order\Pay;
use App\Http\Model\Source\Pay\WeiXinXPay;
use Illuminate\Http\Request;
class WeiXinXPayController extends BaseApiController
{
public $config;
public function __construct()
{
$config = array(
'appid'=>'xxxxxx',
'pay_mchid'=>'xxxxxx',
'pay_apikey'=>'xxxxxx',
'notify_url'=>'xxxxxx',
'body'=>'xxxxxx'
);
$this->config = $config;
}
/**
* 预支付请求接口(POST)
* $openid openid
* $body 商品简单描述
* $order_sn 订单编号
* $total_fee 金额
* json的数据
*/
public function requestPayment(Request $request)
{
$errors = new \stdClass();
$object = $this->JsonToArray($request);
$res = Order::where(['order_id'=>trim($object['order_id']),'openid'=>trim($object['openid'])])->select('openid','price','pay_status','order_id')->first();
if( $res && $res->pay_status == 0 )
{
$pay = new WeiXinXPay( $this->config );
$obj = new \stdClass();
$obj->openid = $res->openid;
$obj->body = $this->config['body'];
$obj->order_sn = $res->order_id;
$obj->total_fee = $res->price;
$result = $pay->prepay( $obj );
$result = json_decode($result);
if( $result->status == 1 )
{
$errors->status = 1;
$errors->data = $result->data;
return response()->json($errors, 200);
}else
{
$errors->status = 0;
$errors->result = '支付异常';
return response()->json($errors, 200);
}
}else
{
$errors->status = 0;
$errors->result = '支付异常';
return response()->json($errors, 200);
}
}
/**
* 支付回调
* 返回数组去修改支付订单数据
*/
public function notifyPay()
{
$notify = new WeiXinXPay( $this->config );
$data = $notify->notify();
if( $data )
{
//修改数据库订单状态
}
}
}3.类
<?php
namespace App\Http\Model\Source\Pay;
use Illuminate\Database\Eloquent\Model;
class WeiXinXPay extends Model
{
public $config;
public function __construct( $config )
{
$this->config = $config;
}
/**
* 预支付请求接口(POST)
* 返回json的数据
*/
public function prepay( $obj )
{
$config = $this->config;
$unifiedorder = array(
'appid' =>$config['appid'],
'mch_id' =>$config['pay_mchid'],
'nonce_str' =>self::getNonceStr(),
'body' =>$obj->body,
'out_trade_no' =>$obj->order_sn,
'total_fee' =>$obj->total_fee * 100,
'spbill_create_ip'=>$_SERVER['REMOTE_ADDR'],
'notify_url' =>$config['notify_url'],
'trade_type' =>'JSAPI',
'openid' =>$obj->openid
);
$unifiedorder['sign'] = self::makeSign($unifiedorder);
//请求数据
$xmldata = self::array2xml($unifiedorder);
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$res = self::curl_post_ssl($url, $xmldata);
if(!$res){
self::return_err("Can't connect the server");
}
$content = self::xml2array($res);
if(strval($content['result_code']) == 'FAIL'){
self::return_err(strval($content['err_code_des']));
}
if(strval($content['return_code']) == 'FAIL'){
self::return_err(strval($content['return_msg']));
}
//拼接小程序的接口数据
$resData = array(
'appId' => strval($content['appid']),
'timeStamp' => time(),
'nonceStr' => self::getNonceStr(),
'package' => 'prepay_id='.strval($content['prepay_id']),
'signType' => 'MD5',
);
//加密签名
$resData['paySign'] = self::makeSign($resData);
exit(json_encode(array('status'=>1,'data'=>$resData)));
}
/**
* @return array|bool
* 微信支付回调验证
* 返回数据
*/
public function notify()
{
//$xml = $GLOBALS['HTTP_RAW_POST_DATA'];
$xml = file_get_contents('php://input');
//将服务器返回的XML数据转化为数组
$data = self::xml2array($xml);
// 保存微信服务器返回的签名sign
$data_sign = $data['sign'];
// sign不参与签名算法
unset($data['sign']);
$sign = self::makeSign($data);
// 判断签名是否正确 判断支付状态
if ( ($sign===$data_sign) && ($data['return_code']=='SUCCESS') && ($data['result_code']=='SUCCESS') )
{
$result = $data;
//获取服务器返回的数据
//更新数据库
}else
{
$result = false;
}
// 返回状态给微信服务器
if ( $result )
{
$str='<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';
}else
{
$str='<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[签名失败]]></return_msg></xml>';
}
echo $str;
return $result;
}
//---------------------------------------------------------------用到的函数------------------------------------------------------------
/**
* 错误返回提示
* @param string $errMsg 错误信息
* @param string $status 错误码
* @return json的数据
*/
protected function return_err($errMsg='error',$status=0)
{
exit(json_encode(array('status'=>$status,'result'=>'fail','errmsg'=>$errMsg)));
}
/**
* 正确返回
* @param array $data 要返回的数组
* @return json的数据
*/
protected function return_data($data=array())
{
exit(json_encode(array('status'=>1,'result'=>'success','data'=>$data)));
}
/**
* 将一个数组转换为 XML 结构的字符串
* @param array $arr 要转换的数组
* @param int $level 节点层级, 1 为 Root.
* @return string XML 结构的字符串
*/
protected function array2xml($arr, $level = 1)
{
$s = $level == 1 ? "<xml>" : '';
foreach($arr as $tagname => $value)
{
if (is_numeric($tagname))
{
$tagname = $value['TagName'];
unset($value['TagName']);
}
if(!is_array($value))
{
$s .= "<{$tagname}>".(!is_numeric($value) ? '<![CDATA[' : '').$value.(!is_numeric($value) ? ']]>' : '')."</{$tagname}>";
}else
{
$s .= "<{$tagname}>" . $this->array2xml($value, $level + 1)."</{$tagname}>";
}
}
$s = preg_replace("/([\x01-\x08\x0b-\x0c\x0e-\x1f])+/", ' ', $s);
return $level == 1 ? $s."</xml>" : $s;
}
/**
* 将xml转为array
* @param string $xml xml字符串
* @return array 转换得到的数组
*/
protected function xml2array($xml)
{
//禁止引用外部xml实体
libxml_disable_entity_loader(true);
$result= json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
return $result;
}
/**
*
* 产生随机字符串，不长于32位
* @param int $length
* @return 产生的随机字符串
*/
protected function getNonceStr($length = 32)
{
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str ="";
for ( $i = 0; $i < $length; $i++ )
{
$str .= substr($chars, mt_rand(0, strlen($chars)-1), 1);
}
return $str;
}
/**
* 生成签名
* @return 签名
*/
protected function makeSign($data)
{
//获取微信支付秘钥
$key = $this->config['pay_apikey'];
//去空
$data = array_filter($data);
//签名步骤一：按字典序排序参数
ksort($data);
$string_a = http_build_query($data);
$string_a = urldecode($string_a);
//签名步骤二：在string后加入KEY
$string_sign_temp = $string_a."&key=".$key;
//签名步骤三：MD5加密
$sign = md5($string_sign_temp);
// 签名步骤四：所有字符转为大写
$result=strtoupper($sign);
return $result;
}
/**
* 微信支付发起请求
*/
protected function curl_post_ssl($url, $xmldata, $second=30,$aHeader=array())
{
$ch = curl_init();
//超时时间
curl_setopt($ch,CURLOPT_TIMEOUT,$second);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
//这里设置代理，如果有的话
//curl_setopt($ch,CURLOPT_PROXY, '10.206.30.98');
//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
if( count($aHeader) >= 1 ){
curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
}
curl_setopt($ch,CURLOPT_POST, 1);
curl_setopt($ch,CURLOPT_POSTFIELDS,$xmldata);
$data = curl_exec($ch);
if($data){
curl_close($ch);
return $data;
}
else {
$error = curl_errno($ch);
echo "call faild, errorCode:$error\n";
curl_close($ch);
return false;
}
}
}4.小程序发起
/**
* 请求支付数据
*/
pay: function ( order_id ) {
var that = this;
var url = _data.get_api_prepay_id; //得到预支付交易单地址这个请求是自己写的你可以用官方的
var openid = wx.getStorageSync('openid');
var resdata = { 'openid': openid, 'order_id': order_id };
_httpHelper.httpPost(url, resdata, function (res) {
if ( res.status == 1 )
{
that.Payment(res.data);
}else
{
wx.showToast({ title: '支付失败', icon: 'loading', duration: 20000 });
}
});
},
Payment: function (data) {
wx.requestPayment({
'timeStamp': String(data.timeStamp),
'nonceStr': data.nonceStr,
'package': data.package,
'signType': data.signType,
'paySign': data.paySign,
'success': function (res)
{
wx.redirectTo({
url: '../user/my'
})
},
'fail': function (res)
{
wx.showToast({ title: '支付失败', icon: 'loading', duration: 20000 });
}
})
}
})本文由：xiaoshu168 作者：xiaoshu发表，转载请注明来源！