php Xiaobian Yuzai will introduce you to Java WeChat applet payment in detail. With the popularity of mobile payment, Java WeChat applet payment has become a popular choice for merchants to provide online payment services. Through payment through the WeChat applet developed in Java, merchants can accept payment requests from users conveniently and quickly, providing users with a more convenient shopping experience. This article will help you understand the relevant knowledge and operation methods of Java WeChat applet payment, allowing you to easily build your own payment system.
Java WeChat Mini Program Payment
Preface
WeChatmini programPayment is a convenient and fast payment method that allows users to pay directly in the WeChat mini program. The WeChat Mini Program Payment Library (WePay SDK) is provided for Java developers, which contains all necessary api and functions, thereby simplifying the integration of the payment process.
Integration steps
1. Add dependencies
Add the following dependencies in the pom.xml file of the project:
<dependency> <groupId>com.GitHub.wxpay</groupId> <artifactId>wxpay-sdk</artifactId> <version>4.0.2</version> </dependency>
2. Create WePay object
Create a WePay object to access the WeChat applet payment API:
WePay wePay = new WePay.Builder() .appId(appId) .partnerId(partnerId) .partnerKey(partnerKey) .notifyUrl(notifyUrl) .build();
3. Generate payment request object
Use wePay object to generate payment request object:
PayRequest payRequest = new PayRequest() .setBody(body) .setOutTradeNo(outTradeNo) .setTotalFee(totalFee) .setSpbillCreateIp(spbillCreateIp) .setTradeType(TradeType.jsAPI);
4. Send payment request
Send the payment request object to the WeChat applet payment API:
PayResponse payResponse = wePay.createOrder(payRequest);
5. Get mini program payment parameters
Get the mini program payment parameters from the payment response:
Map<String, String> payParams = payResponse.getPayParams();
6. Front-end calls WeChat applet payment SDK
In the mini program Front end Call the WeChat mini program payment SDK and pass in the payment parameters:
wx.requestPayment({ timeStamp: payParams.timeStamp, nonceStr: payParams.nonceStr, package: payParams.package, signType: payParams.signType, paySign: payParams.paySign, success: function(res) {}, fail: function(res) {} });
7. Backend payment result notification
After the WeChat applet payment is successful, WeChat will send a payment result notification to the backend :
@PostMapping("/notify") public String notify(@RequestBody PayNotifyRequest payNotifyRequest) { if (wePay.isSignatureValid(payNotifyRequest)) { // Process payment results } return "SUCCESS"; }
Advanced Features
Refund
- Create a refund request object:
RefundRequest refundRequest = new RefundRequest()
- Send refund request:
RefundResponse refundResponse = wePay.refund(refundRequest)
checking order
- Create a query order request object:
OrderQueryRequest orderQueryRequest = new OrderQueryRequest()
- Send query order request:
OrderQueryResponse orderQueryResponse = wePay.queryOrder(orderQueryRequest)
Close order
- Create a close order request object:
CloseOrderRequest closeOrderRequest = new CloseOrderRequest()
- Send a close order request:
CloseOrderResponse closeOrderResponse = wePay.closeOrder(closeOrderRequest)
Best Practices
- Ensure the security and confidentiality of payment parameters.
- When processing payment result notifications, verify signatures to prevent fraud.
- Record all payment transactions for future inquiry.
- Adjust the timeout of the payment callback URL as needed.
in conclusion
Java WeChat Mini Program Payment is a simple and easy-to-use function that allows developers to integrate payment functions into WeChat Mini Programs. By following the steps in this article, developers can easily implement mini program payments and meet users' payment needs.
The above is the detailed content of java WeChat applet payment. For more information, please follow other related articles on the PHP Chinese website!

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于结构化数据处理开源库SPL的相关问题,下面就一起来看一下java下理想的结构化数据处理类库,希望对大家有帮助。

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于PriorityQueue优先级队列的相关知识,Java集合框架中提供了PriorityQueue和PriorityBlockingQueue两种类型的优先级队列,PriorityQueue是线程不安全的,PriorityBlockingQueue是线程安全的,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于java锁的相关问题,包括了独占锁、悲观锁、乐观锁、共享锁等等内容,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于多线程的相关问题,包括了线程安装、线程加锁与线程不安全的原因、线程安全的标准类等等内容,希望对大家有帮助。

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于枚举的相关问题,包括了枚举的基本操作、集合类对枚举的支持等等内容,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于Java的相关知识,其中主要介绍了关于关键字中this和super的相关问题,以及他们的一些区别,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于平衡二叉树(AVL树)的相关知识,AVL树本质上是带了平衡功能的二叉查找树,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于Java的相关知识,其中主要整理了Stream流的概念和使用的相关问题,包括了Stream流的概念、Stream流的获取、Stream流的常用方法等等内容,下面一起来看一下,希望对大家有帮助。


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SublimeText3 English version
Recommended: Win version, supports code prompts!

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft