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How to use python code to achieve payment jump page, I believe that many inexperienced people do not know what to do, so this paper summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

Public class AlipayUtil {

Private Activity activity

The interface to jump after successful payment by private Class clz;//

Private String orderid

Private String id

Public AlipayUtil (Activity activity,Class clz,int alipayType, String orderid,String id) {

This.activity=activity

This.clz = clz

This.alipayType=alipayType

This.orderid = orderid

This.id = id

}

/ / merchant PID

Public static final String PARTNER = (String) PropertiesParser.get ("PARTNER")

/ / merchant collection account

Public static final String SELLER = (String) PropertiesParser.get ("SELLER")

/ / Merchant private key in pkcs8 format

Public static final String RSA_PRIVATE = (String) PropertiesParser.get ("RSA_PRIVATE")

/ / Alipay public key

Public static final String RSA_PUBLIC = (String) PropertiesParser.get ("RSA_PUBLIC")

/ / Server Asynchronous Notification Page path URL

/ / public static final String NOTIFY_URL=ConstUtil.BASE_URL+ "alipay/index/"

Public static final String NOTIFY_URL=ConstUtil.BASE_URL+ "alipay"

/ / timeout for unpaid transactions

Public static final String IT_B_PAY= (String) PropertiesParser.get ("IT_B_PAY")

Private static final int SDK_PAY_FLAG = 1

Private static final int SDK_CHECK_FLAG = 2

Private int resultType; / / result type 1 success 0 failure caused by user cancellation 3 is not the failure of user cancellation

Private int alipayType; / / Operation Type 1 pay 2 recharge

The display title of the private String title; / / execute interface dialog box

Private String content;// content

Private String money; / / payment, top-up fee

Private void setTitleAndContent () {

If (alipayType==2) {

If (resultType==1) {

Title= "recharge successfully"

Content= "using Alipay to recharge successfully"

} else if (resultType==0) {

Title= "recharge failure"

Content= "recharge failed, user canceled"

} else {

Title= "recharge failure"

Content= "recharge result is being confirmed. The transaction will be closed automatically for more than 15 minutes and the transaction amount will be refunded automatically."

}

} else if (alipayType==1) {

If (resultType==1) {

Title= "payment success"

Content= "pay successfully with Alipay"

} else if (resultType==0) {

Title= "payment failed"

Content= "payment failed, user canceled"

} else {

Title= "payment failed"

Content= "payment result is being confirmed. The transaction will be closed automatically after 15 minutes and the transaction amount will be refunded automatically."

}

}

}

Private Handler mHandler = new Handler () {

Public void handleMessage (Message msg) {

Switch (msg.what) {

Case SDK_PAY_FLAG: {

PayResult payResult = new PayResult ((String) msg.obj)

/ / Alipay returns the payment result and endorsement. It is recommended to verify the signature information of Alipay with the public key provided by Alipay at the time of signing the contract.

String resultInfo = payResult.getResult ()

String resultStatus = payResult.getResultStatus ()

/ / if the resultStatus is "9000", the payment is successful. For more information on the meaning of the status code, please see the API documentation.

If (TextUtils.equals (resultStatus, "9000")) {

/ / payment is successful

ResultType=1

} else {

/ / if the resultStatus is not "9000", the payment may fail.

/ / "8000" means that the payment result is still waiting for payment result confirmation due to payment channel or system reasons. Whether the final transaction is successful is subject to the server asynchronous notification (low probability status).

If (TextUtils.equals (resultStatus, "8000")) {

/ / confirmation of payment result

ResultType=3

} else {

ResultType=0

/ / other values can be judged as payment failure, including the user canceling the payment voluntarily, or the error returned by the system

}

}

SetTitleAndContent ()

/ / use the dialog box to prompt the user to execute the result of the payment

DialogUtil.moneyPayResultDialog (activity, clz, title, content, new OnClickListener () {

@ Override

Public void onClick (View v) {

DialogUtil.cancleMoneyPayResultDialog ()

If (resultType==1) {

If (alipayType==1) {/ / payment successfully redirects the main interface

If (orderid.substring (0,1) .equals ("o")) {

Intent intent = new Intent (activity, clz)

Intent.putExtra ("orderid", orderid.substring (1))

Activity.startActivity (intent)

Activity.finish ()

Activity.overridePendingTransition (R.anim.finish_enter, R.anim.finish_exit)

} else {

Intent intent = new Intent (activity, clz)

Orderid = id

Intent.putExtra ("orderid", orderid)

Activity.startActivity (intent)

Activity.finish ()

Activity.overridePendingTransition (R.anim.finish_enter, R.anim.finish_exit)

}

} else if (alipayType==2) {/ / recharge successfully finish the current interface returns to the balance interface to transfer the recharge amount

Activity.setResult (Activity.RESULT_OK,new Intent () .putExtra ("money", money)

Activity.finish ()

Activity.overridePendingTransition (R.anim.finish_enter, R.anim.finish_exit)

}

} else if (resultType==0) {/ / payment failure stays on the current interface

}

}

});

Break

}

Case SDK_CHECK_FLAG:

PrintUtil.toastLong (activity,msg.obj.toString ())

If (! (Boolean) msg.obj) {

PrintUtil.toastLong (activity, "you do not have Alipay installed or do not have a valid Alipay account!")

}

Break

Default:

Break

}

}

}

/ * *

* pay for Alipay

* @ name of the param subject product

* @ param body description of the product

Price of * @ param price goods

* @ param order_id order number

, /

Public void pay (String subject,String body,String order_id,String price,String id) {

Money=price

If (TextUtils.isEmpty (PARTNER) | | TextUtils.isEmpty (RSA_PRIVATE) | | TextUtils.isEmpty (SELLER)) {

PrintUtil.toastLong (activity, "merchant information is incomplete and payment cannot be made")

Return

}

/ / order

String orderInfo = getOrderInfo (subject, body, order_id,price)

/ / A pair of orders are signed by RSA

String sign = sign (orderInfo)

Try {

/ / only need to encode sign with URL

Sign = URLEncoder.encode (sign, "UTF-8")

} catch (UnsupportedEncodingException e) {

E.printStackTrace ()

}

/ / complete order information that conforms to Alipay parameter specifications

Final String payInfo = orderInfo + "& sign=\" + sign + "\" & "

+ getSignType ()

Runnable payRunnable = new Runnable () {

@ Override

Public void run () {

/ / construct PayTask object

PayTask alipay = new PayTask (activity)

/ / call the payment API to get the payment result

String result = alipay.pay (payInfo)

Message msg = new Message ()

Msg.what = SDK_PAY_FLAG

Msg.obj = result

MHandler.sendMessage (msg)

}

}

/ / must be called asynchronously

Thread payThread = new Thread (payRunnable)

PayThread.start ()

}

/ * *

* check whether the device has authentication alipay account.

* query whether Alipay authentication account exists in terminal equipment.

*

, /

/ / public void check () {

/ / Runnable checkRunnable = new Runnable () {

/ / @ Override

/ / public void run () {

/ construct PayTask object

/ / PayTask payTask = new PayTask (activity)

/ / call the query API to get the query result

/ / boolean isExist = payTask.checkAccountIfExist ()

/ /

/ / Message msg = new Message ()

/ / msg.what = SDK_CHECK_FLAG

/ / msg.obj = isExist

/ / mHandler.sendMessage (msg)

/ /}

/ /}

/ /

/ / Thread checkThread = new Thread (checkRunnable)

/ / checkThread.start ()

/ /

/ /}

/ * *

* get the sdk version. Get the SDK version number

*

, /

Public void getSDKVersion () {

PayTask payTask = new PayTask (activity)

String version = payTask.getVersion ()

PrintUtil.toast (activity, version)

}

/ * *

* create the order info. Create order information

* @ return

, /

Public String getOrderInfo (String subject, String body, String order_id,String price) {

/ / ID as the signing partner

String orderInfo = "partner=" + "\"+ PARTNER +"\ ""

/ / sign the seller's Alipay account

OrderInfo + = "& seller_id=" + "\"+ SELLER +"\ ""

/ / the unique order number of the merchant website

OrderInfo + = "& out_trade_no=" + "\"+ order_id +"\ ""

/ / Product name

OrderInfo + = "& subject=" + "\"+ subject +"\ ""

/ / Product details

OrderInfo + = "& body=" + "\"+ body +"\ ""

/ / the amount of goods

OrderInfo + = "& total_fee=" + "\"+ price +"\ ""

/ / Server async notification page path

OrderInfo + = "& notify_url=" + "\" + NOTIFY_URL

+ "\"

/ / Service API name, fixed value

OrderInfo + = "& service=\" mobile.securitypay.pay\ ""

/ / payment type, fixed value

OrderInfo + = "& payment_type=\" 1\ ""

/ / Parameter coding, fixed value

OrderInfo + = "& _ input_charset=\" utf-8\ ""

/ / set the timeout for unpaid transactions

/ / the default is 30 minutes. If the transaction times out, the transaction will be closed automatically.

/ / value range: 1m~15d.

/ / m-minute, h-hour, d-day, 1c-day (no matter when the transaction is created, it closes at 0: 00).

/ / the value of this parameter does not accept decimal point. For example, 1.5h can be converted to 90m.

OrderInfo + = "& it_b_pay=\" + IT_B_PAY+ "\"

/ / extern_token is the alipay_open_id obtained through fast login authorization. With this parameter, the user will use the authorized account to make payment.

/ / orderInfo + = "& extern_token=" + "\"+ extern_token +"\ ""

/ / after Alipay processes the request, the current page jumps to the path of the merchant's specified page, which can be left empty.

OrderInfo + = "& return_url=\" m.alipay.com\ ""

/ / to call bank card payment, you need to configure this parameter, participate in the signature, and fix the value (you need to sign "Wireless Bank Card Express payment" to use it)

/ / orderInfo + = "& paymethod=\" expressGateway\ ""

Return orderInfo

}

/ * *

* sign the order info. Sign the order information

*

* @ param content

* order information to be signed

, /

Public String sign (String content) {

Return SignUtils.sign (content, RSA_PRIVATE)

}

/ * *

* get the sign type we use. Get signature method

*

, /

Public String getSignType () {

Return "sign_type=\" RSA\ ""

}

}

After reading the above, have you mastered how to use python code to implement the payment jump page? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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