wemall app商城源码Android之Native（原生）支付模式一demo

摘要：本文分享原生支付模式一，供技术员参考学习。官网地址模式一商户按固定格式生成链接二维码，用户扫码后调微信会将和用户发送到商户设置的链接上，商户收到请求生成订单，调用统一支付接口下单提交到微信，微信会返回给商户。

wemall-mobile是基于WeMall的Android app商城，只需要在原商城目录下上传接口文件即可完成服务端的配置，客户端可定制修改。本文分享Native（原生）支付模式一demo，供技术员参考学习。

wemall官网地址：http://www.wemallshop.com

模式一：商户按固定格式生成链接二维码，用户扫码后调微信

会将productid和用户openid发送到商户设置的链接上，商户收到

请求生成订单，调用统一支付接口下单提交到微信，微信会返回

给商户prepayid。

本例程对应的二维码由native_call_qrcode.php生成；

本例程对应的响应服务为native_call.php;

需要两者配合使用。

native_call.php

log_result($log_name,"【接收到的native通知】:
".$xml."
");
    $nativeCall->saveData($xml);
    
    if($nativeCall->checkSign() == FALSE){
        $nativeCall->setReturnParameter("return_code","FAIL");//返回状态码
        $nativeCall->setReturnParameter("return_msg","签名失败");//返回信息
    }else{
        //提取product_id
        $product_id = $nativeCall->getProductId();
        
        //使用统一支付接口
        $unifiedOrder = new UnifiedOrder_pub();
        
        //根据不同的$product_id设定对应的下单参数，此处只举例一种
        switch ($product_id) 
        {
            case WxPayConf_pub::APPID."static"://与native_call_qrcode.php中的静态链接二维码对应
                //设置统一支付接口参数
                //设置必填参数
                //appid已填,商户无需重复填写
                //mch_id已填,商户无需重复填写
                //noncestr已填,商户无需重复填写
                //spbill_create_ip已填,商户无需重复填写
                //sign已填,商户无需重复填写
                $unifiedOrder->setParameter("body","贡献一分钱");//商品描述
                //自定义订单号，此处仅作举例
                $timeStamp = time();
                $out_trade_no = WxPayConf_pub::APPID."$timeStamp";
                $unifiedOrder->setParameter("out_trade_no","$out_trade_no");//商户订单号             $unifiedOrder->setParameter("product_id","$product_id");//商品ID
                $unifiedOrder->setParameter("total_fee","1");//总金额
                $unifiedOrder->setParameter("notify_url",WxPayConf_pub::NOTIFY_URL);//通知地址 
                $unifiedOrder->setParameter("trade_type","NATIVE");//交易类型
                $unifiedOrder->setParameter("product_id","$product_id");//用户标识
                //非必填参数，商户可根据实际情况选填
                //$unifiedOrder->setParameter("sub_mch_id","XXXX");//子商户号  
                //$unifiedOrder->setParameter("device_info","XXXX");//设备号 
                //$unifiedOrder->setParameter("attach","XXXX");//附加数据 
                //$unifiedOrder->setParameter("time_start","XXXX");//交易起始时间
                //$unifiedOrder->setParameter("time_expire","XXXX");//交易结束时间 
                //$unifiedOrder->setParameter("goods_tag","XXXX");//商品标记 
                //$unifiedOrder->setParameter("openid","XXXX");//用户标识
                
                //获取prepay_id
                $prepay_id = $unifiedOrder->getPrepayId();
                //设置返回码
                //设置必填参数
                //appid已填,商户无需重复填写
                //mch_id已填,商户无需重复填写
                //noncestr已填,商户无需重复填写
                //sign已填,商户无需重复填写
                $nativeCall->setReturnParameter("return_code","SUCCESS");//返回状态码
                $nativeCall->setReturnParameter("result_code","SUCCESS");//业务结果
                $nativeCall->setReturnParameter("prepay_id","$prepay_id");//预支付ID
                
                break;
            default:
                //设置返回码
                //设置必填参数
                //appid已填,商户无需重复填写
                //mch_id已填,商户无需重复填写
                //noncestr已填,商户无需重复填写
                //sign已填,商户无需重复填写
                $nativeCall->setReturnParameter("return_code","SUCCESS");//返回状态码
                $nativeCall->setReturnParameter("result_code","FAIL");//业务结果
                $nativeCall->setReturnParameter("err_code_des","此商品无效");//业务结果
                break;
        }

    }
    
    //将结果返回微信
    $returnXml = $nativeCall->returnXml();
    $log_->log_result($log_name,"【返回微信的native响应】:
".$returnXml."
");

    echo $returnXml;
    
    //交易完成

?>

log_.php

WxPayPubHelper.php

 $v)
        {
            if($urlencode)
            {
               $v = urlencode($v);
            }
            //$buff .= strtolower($k) . "=" . $v . "&";
            $buff .= $k . "=" . $v . "&";
        }
        $reqPar;
        if (strlen($buff) > 0) 
        {
            $reqPar = substr($buff, 0, strlen($buff)-1);
        }
        return $reqPar;
    }
    
    /**
     *     作用：生成签名
     */
    public function getSign($Obj)
    {
        foreach ($Obj as $k => $v)
        {
            $Parameters[$k] = $v;
        }
        //签名步骤一：按字典序排序参数
        ksort($Parameters);
        $String = $this->formatBizQueryParaMap($Parameters, false);
        //echo "【string1】".$String."
";
        //签名步骤二：在string后加入KEY
        $String = $String."&key=".WxPayConf_pub::KEY;
        //echo "【string2】".$String."
";
        //签名步骤三：MD5加密
        $String = md5($String);
        //echo "【string3】 ".$String."
";
        //签名步骤四：所有字符转为大写
        $result_ = strtoupper($String);
        //echo "【result】 ".$result_."
";
        return $result_;
    }
    
    /**
     *     作用：array转xml
     */
    function arrayToXml($arr)
    {
        $xml = "";
        foreach ($arr as $key=>$val)
        {
             if (is_numeric($val))
             {
                 $xml.="<".$key.">".$val.""; 

             }
             else
                 $xml.="<".$key.">";  
        }
        $xml.="";
        return $xml; 
    }
    
    /**
     *     作用：将xml转为array
     */
    public function xmlToArray($xml)
    {        
        //将XML转为array        
        $array_data = json_decode(json_encode(simplexml_load_string($xml, "SimpleXMLElement", LIBXML_NOCDATA)), true);        
        return $array_data;
    }

    /**
     *     作用：以post方式提交xml到对应的接口url
     */
    public function postXmlCurl($xml,$url,$second=30)
    {        
        //初始化curl        
           $ch = curl_init();
        //设置超时
        curl_setopt($ch, CURLOP_TIMEOUT, $second);
        //这里设置代理，如果有的话
        //curl_setopt($ch,CURLOPT_PROXY, "8.8.8.8");
        //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
        curl_setopt($ch,CURLOPT_URL, $url);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
        //设置header
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        //要求结果为字符串且输出到屏幕上
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        //post提交方式
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
        //运行curl
        $data = curl_exec($ch);
        curl_close($ch);
        //返回结果
        if($data)
        {
            curl_close($ch);
            return $data;
        }
        else 
        { 
            $error = curl_errno($ch);
            echo "curl出错，错误码:$error"."
"; 
            echo "错误原因查询
";
            curl_close($ch);
            return false;
        }
    }

    /**
     *     作用：使用证书，以post方式提交xml到对应的接口url
     */
    function postXmlSSLCurl($xml,$url,$second=30)
    {
        $ch = curl_init();
        //超时时间
        curl_setopt($ch,CURLOPT_TIMEOUT,$second);
        //这里设置代理，如果有的话
        //curl_setopt($ch,CURLOPT_PROXY, "8.8.8.8");
        //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
        curl_setopt($ch,CURLOPT_URL, $url);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
        //设置header
        curl_setopt($ch,CURLOPT_HEADER,FALSE);
        //要求结果为字符串且输出到屏幕上
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
        //设置证书
        //使用证书：cert 与 key 分别属于两个.pem文件
        //默认格式为PEM，可以注释
        curl_setopt($ch,CURLOPT_SSLCERTTYPE,"PEM");
        curl_setopt($ch,CURLOPT_SSLCERT, WxPayConf_pub::SSLCERT_PATH);
        //默认格式为PEM，可以注释
        curl_setopt($ch,CURLOPT_SSLKEYTYPE,"PEM");
        curl_setopt($ch,CURLOPT_SSLKEY, WxPayConf_pub::SSLKEY_PATH);
        //post提交方式
        curl_setopt($ch,CURLOPT_POST, true);
        curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);
        $data = curl_exec($ch);
        //返回结果
        if($data){
            curl_close($ch);
            return $data;
        }
        else { 
            $error = curl_errno($ch);
            echo "curl出错，错误码:$error"."
"; 
            echo "错误原因查询
";
            curl_close($ch);
            return false;
        }
    }
    
    /**
     *     作用：打印数组
     */
    function printErr($wording="",$err="")
    {
        print_r("
");
        echo $wording."
";
        var_dump($err);
        print_r("
");
    }
}

/**
 * 请求型接口的基类
 */
class Wxpay_client_pub extends Common_util_pub 
{
    var $parameters;//请求参数，类型为关联数组
    public $response;//微信返回的响应
    public $result;//返回参数，类型为关联数组
    var $url;//接口链接
    var $curl_timeout;//curl超时时间
    
    /**
     *     作用：设置请求参数
     */
    function setParameter($parameter, $parameterValue)
    {
        $this->parameters[$this->trimString($parameter)] = $this->trimString($parameterValue);
    }
    
    /**
     *     作用：设置标配的请求参数，生成签名，生成接口参数xml
     */
    function createXml()
    {
           $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
           $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
        $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
        $this->parameters["sign"] = $this->getSign($this->parameters);//签名
        return  $this->arrayToXml($this->parameters);
    }
    
    /**
     *     作用：post请求xml
     */
    function postXml()
    {
        $xml = $this->createXml();
        $this->response = $this->postXmlCurl($xml,$this->url,$this->curl_timeout);
        return $this->response;
    }
    
    /**
     *     作用：使用证书post请求xml
     */
    function postXmlSSL()
    {    
        $xml = $this->createXml();
        $this->response = $this->postXmlSSLCurl($xml,$this->url,$this->curl_timeout);
        return $this->response;
    }

    /**
     *     作用：获取结果，默认不使用证书
     */
    function getResult() 
    {        
        $this->postXml();
        $this->result = $this->xmlToArray($this->response);
        return $this->result;
    }
}


/**
 * 统一支付接口类
 */
class UnifiedOrder_pub extends Wxpay_client_pub
{    
    function __construct() 
    {
        //设置接口链接
        $this->url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;
    }
    
    /**
     * 生成接口参数xml
     */
    function createXml()
    {
        try
        {
            //检测必填参数
            if($this->parameters["out_trade_no"] == null) 
            {
                throw new SDKRuntimeException("缺少统一支付接口必填参数out_trade_no！"."
");
            }elseif($this->parameters["body"] == null){
                throw new SDKRuntimeException("缺少统一支付接口必填参数body！"."
");
            }elseif ($this->parameters["total_fee"] == null ) {
                throw new SDKRuntimeException("缺少统一支付接口必填参数total_fee！"."
");
            }elseif ($this->parameters["notify_url"] == null) {
                throw new SDKRuntimeException("缺少统一支付接口必填参数notify_url！"."
");
            }elseif ($this->parameters["trade_type"] == null) {
                throw new SDKRuntimeException("缺少统一支付接口必填参数trade_type！"."
");
            }elseif ($this->parameters["trade_type"] == "JSAPI" &&
                $this->parameters["openid"] == NULL){
                throw new SDKRuntimeException("统一支付接口中，缺少必填参数openid！trade_type为JSAPI时，openid为必填参数！"."
");
            }
               $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
               $this->parameters["spbill_create_ip"] = $_SERVER["REMOTE_ADDR"];//终端ip        
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名
            return  $this->arrayToXml($this->parameters);
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }
    
    /**
     * 获取prepay_id
     */
    function getPrepayId()
    {
        $this->postXml();
        $this->result = $this->xmlToArray($this->response);
        $prepay_id = $this->result["prepay_id"];
        return $prepay_id;
    }
    
}

/**
 * 订单查询接口
 */
class OrderQuery_pub extends Wxpay_client_pub
{
    function __construct() 
    {
        //设置接口链接
        $this->url = "https://api.mch.weixin.qq.com/pay/orderquery";
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;        
    }

    /**
     * 生成接口参数xml
     */
    function createXml()
    {
        try
        {
            //检测必填参数
            if($this->parameters["out_trade_no"] == null && 
                $this->parameters["transaction_id"] == null) 
            {
                throw new SDKRuntimeException("订单查询接口中，out_trade_no、transaction_id至少填一个！"."
");
            }
               $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名
            return  $this->arrayToXml($this->parameters);
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }

}

/**
 * 退款申请接口
 */
class Refund_pub extends Wxpay_client_pub
{
    
    function __construct() {
        //设置接口链接
        $this->url = "https://api.mch.weixin.qq.com/secapi/pay/refund";
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;        
    }
    
    /**
     * 生成接口参数xml
     */
    function createXml()
    {
        try
        {
            //检测必填参数
            if($this->parameters["out_trade_no"] == null && $this->parameters["transaction_id"] == null) {
                throw new SDKRuntimeException("退款申请接口中，out_trade_no、transaction_id至少填一个！"."
");
            }elseif($this->parameters["out_refund_no"] == null){
                throw new SDKRuntimeException("退款申请接口中，缺少必填参数out_refund_no！"."
");
            }elseif($this->parameters["total_fee"] == null){
                throw new SDKRuntimeException("退款申请接口中，缺少必填参数total_fee！"."
");
            }elseif($this->parameters["refund_fee"] == null){
                throw new SDKRuntimeException("退款申请接口中，缺少必填参数refund_fee！"."
");
            }elseif($this->parameters["op_user_id"] == null){
                throw new SDKRuntimeException("退款申请接口中，缺少必填参数op_user_id！"."
");
            }
               $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名
            return  $this->arrayToXml($this->parameters);
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }
    /**
     *     作用：获取结果，使用证书通信
     */
    function getResult() 
    {        
        $this->postXmlSSL();
        $this->result = $this->xmlToArray($this->response);
        return $this->result;
    }
    
}


/**
 * 退款查询接口
 */
class RefundQuery_pub extends Wxpay_client_pub
{
    
    function __construct() {
        //设置接口链接
        $this->url = "https://api.mch.weixin.qq.com/pay/refundquery";
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;        
    }
    
    /**
     * 生成接口参数xml
     */
    function createXml()
    {        
        try 
        {
            if($this->parameters["out_refund_no"] == null &&
                $this->parameters["out_trade_no"] == null &&
                $this->parameters["transaction_id"] == null &&
                $this->parameters["refund_id "] == null) 
            {
                throw new SDKRuntimeException("退款查询接口中，out_refund_no、out_trade_no、transaction_id、refund_id四个参数必填一个！"."
");
            }
               $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名
            return  $this->arrayToXml($this->parameters);
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }

    /**
     *     作用：获取结果，使用证书通信
     */
    function getResult() 
    {        
        $this->postXmlSSL();
        $this->result = $this->xmlToArray($this->response);
        return $this->result;
    }

}

/**
 * 对账单接口
 */
class DownloadBill_pub extends Wxpay_client_pub
{

    function __construct() 
    {
        //设置接口链接
        $this->url = "https://api.mch.weixin.qq.com/pay/downloadbill";
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;        
    }

    /**
     * 生成接口参数xml
     */
    function createXml()
    {        
        try 
        {
            if($this->parameters["bill_date"] == null ) 
            {
                throw new SDKRuntimeException("对账单接口中，缺少必填参数bill_date！"."
");
            }
               $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名
            return  $this->arrayToXml($this->parameters);
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }
    
    /**
     *     作用：获取结果，默认不使用证书
     */
    function getResult() 
    {        
        $this->postXml();
        $this->result = $this->xmlToArray($this->result_xml);
        return $this->result;
    }
    
    

}

/**
 * 短链接转换接口
 */
class ShortUrl_pub extends Wxpay_client_pub
{
    function __construct() 
    {
        //设置接口链接
        $this->url = "https://api.mch.weixin.qq.com/tools/shorturl";
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;        
    }
    
    /**
     * 生成接口参数xml
     */
    function createXml()
    {        
        try 
        {
            if($this->parameters["long_url"] == null ) 
            {
                throw new SDKRuntimeException("短链接转换接口中，缺少必填参数long_url！"."
");
            }
               $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名
            return  $this->arrayToXml($this->parameters);
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }
    
    /**
     * 获取prepay_id
     */
    function getShortUrl()
    {
        $this->postXml();
        $prepay_id = $this->result["short_url"];
        return $prepay_id;
    }
    
}

/**
 * 响应型接口基类
 */
class Wxpay_server_pub extends Common_util_pub 
{
    public $data;//接收到的数据，类型为关联数组
    var $returnParameters;//返回参数，类型为关联数组
    
    /**
     * 将微信的请求xml转换成关联数组，以方便数据处理
     */
    function saveData($xml)
    {
        $this->data = $this->xmlToArray($xml);
    }
    
    function checkSign()
    {
        $tmpData = $this->data;
        unset($tmpData["sign"]);
        $sign = $this->getSign($tmpData);//本地签名
        if ($this->data["sign"] == $sign) {
            return TRUE;
        }
        return FALSE;
    }
    
    /**
     * 获取微信的请求数据
     */
    function getData()
    {        
        return $this->data;
    }
    
    /**
     * 设置返回微信的xml数据
     */
    function setReturnParameter($parameter, $parameterValue)
    {
        $this->returnParameters[$this->trimString($parameter)] = $this->trimString($parameterValue);
    }
    
    /**
     * 生成接口参数xml
     */
    function createXml()
    {
        return $this->arrayToXml($this->returnParameters);
    }
    
    /**
     * 将xml数据返回微信
     */
    function returnXml()
    {
        $returnXml = $this->createXml();
        return $returnXml;
    }
}


/**
 * 通用通知接口
 */
class Notify_pub extends Wxpay_server_pub 
{

}




/**
 * 请求商家获取商品信息接口
 */
class NativeCall_pub extends Wxpay_server_pub
{
    /**
     * 生成接口参数xml
     */
    function createXml()
    {
        if($this->returnParameters["return_code"] == "SUCCESS"){
               $this->returnParameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->returnParameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
            $this->returnParameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->returnParameters["sign"] = $this->getSign($this->returnParameters);//签名
        }
        return $this->arrayToXml($this->returnParameters);
    }
    
    /**
     * 获取product_id
     */
    function getProductId()
    {
        $product_id = $this->data["product_id"];
        return $product_id;
    }
    
}

/**
 * 静态链接二维码
 */
class NativeLink_pub  extends Common_util_pub
{
    var $parameters;//静态链接参数
    var $url;//静态链接

    function __construct() 
    {
    }
    
    /**
     * 设置参数
     */
    function setParameter($parameter, $parameterValue) 
    {
        $this->parameters[$this->trimString($parameter)] = $this->trimString($parameterValue);
    }
    
    /**
     * 生成Native支付链接二维码
     */
    function createLink()
    {
        try 
        {        
            if($this->parameters["product_id"] == null) 
            {
                throw new SDKRuntimeException("缺少Native支付二维码链接必填参数product_id！"."
");
            }            
               $this->parameters["appid"] = WxPayConf_pub::APPID;//公众账号ID
               $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
               $time_stamp = time();
               $this->parameters["time_stamp"] = "$time_stamp";//时间戳
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名            
            $bizString = $this->formatBizQueryParaMap($this->parameters, false);
            $this->url = "weixin://wxpay/bizpayurl?".$bizString;
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }
    
    /**
     * 返回链接
     */
    function getUrl() 
    {        
        $this->createLink();
        return $this->url;
    }
}

/**
* JSAPI支付——H5网页端调起支付接口
*/
class JsApi_pub extends Common_util_pub
{
    var $code;//code码，用以获取openid
    var $openid;//用户的openid
    var $parameters;//jsapi参数，格式为json
    var $prepay_id;//使用统一支付接口得到的预支付id
    var $curl_timeout;//curl超时时间

    function __construct() 
    {
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;
    }
    
    /**
     *     作用：生成可以获得code的url
     */
    function createOauthUrlForCode($redirectUrl)
    {
        $urlObj["appid"] = WxPayConf_pub::APPID;
        $urlObj["redirect_uri"] = "$redirectUrl";
        $urlObj["response_type"] = "code";
        $urlObj["scope"] = "snsapi_base";
        $urlObj["state"] = "STATE"."#wechat_redirect";
        $bizString = $this->formatBizQueryParaMap($urlObj, false);
        return "https://open.weixin.qq.com/connect/oauth2/authorize?".$bizString;
    }

    /**
     *     作用：生成可以获得openid的url
     */
    function createOauthUrlForOpenid()
    {
        $urlObj["appid"] = WxPayConf_pub::APPID;
        $urlObj["secret"] = WxPayConf_pub::APPSECRET;
        $urlObj["code"] = $this->code;
        $urlObj["grant_type"] = "authorization_code";
        $bizString = $this->formatBizQueryParaMap($urlObj, false);
        return "https://api.weixin.qq.com/sns/oauth2/access_token?".$bizString;
    }
    
    
    /**
     *     作用：通过curl向微信提交code，以获取openid
     */
    function getOpenid()
    {
        $url = $this->createOauthUrlForOpenid();
        //初始化curl
           $ch = curl_init();
        //设置超时
        curl_setopt($ch, CURLOP_TIMEOUT, $this->curl_timeout);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        //运行curl，结果以jason形式返回
        $res = curl_exec($ch);
        curl_close($ch);
        //取出openid
        $data = json_decode($res,true);
        $this->openid = $data["openid"];
        return $this->openid;
    }

    /**
     *     作用：设置prepay_id
     */
    function setPrepayId($prepayId)
    {
        $this->prepay_id = $prepayId;
    }

    /**
     *     作用：设置code
     */
    function setCode($code_)
    {
        $this->code = $code_;
    }

    /**
     *     作用：设置jsapi的参数
     */
    public function getParameters()
    {
        $jsApiObj["appId"] = WxPayConf_pub::APPID;
        $timeStamp = time();
        $jsApiObj["timeStamp"] = "$timeStamp";
        $jsApiObj["nonceStr"] = $this->createNoncestr();
        $jsApiObj["package"] = "prepay_id=$this->prepay_id";
        $jsApiObj["signType"] = "MD5";
        $jsApiObj["paySign"] = $this->getSign($jsApiObj);
        $this->parameters = json_encode($jsApiObj);
        
        return $this->parameters;
    }
}
?>

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