支付宝支付
对接流程
- 申请阿里支付官方企业账号
- 配置应用
- 签约产品
- 获取RSAKey(非对称加密)必须获得两个加密串:一个公钥,一个密钥
- SDK功能开发
- 业务对接
- 支付回调
- 支付组件
核心所需的参数
- APPID
- 商家私钥
- 支付宝公钥
- 支付回调地址
- 网关地址
- 加密签名算法RSA2
申请注册
配置开发信息
接口加签方式
发起支付订单案例
pom.xml
xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.sin</groupId>
<artifactId>demozifubao</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demozifubao</name>
<description>demozifubao</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alipay.sdk/alipay-sdk-java -->
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>4.39.40.ALL</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.30</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.yml
yml
server:
port: 80
alipay:
# 应用ID
appId:
# 应用私钥
privateKey:
# 支付宝公钥
publicKey:
gatewayUrl: https://openapi.alipay.com/gateway.do
AlipayController.java
java
package com.sin.demo.controller;
import com.alipay.api.AlipayApiException;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePrecreateRequest;
import com.alipay.api.response.AlipayTradePrecreateResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* 支付宝支付控制器类
* @createTime 2024/4/16 9:24
* @createAuthor SIN
* @use 用于生成支付二维码
*/
@RestController
@RequestMapping(value = "/pay")
@Slf4j
public class AlipayController {
// 从配置文件中获取参数值
@Value("${alipay.appId}")
private String appId; // 支付宝支付者id
@Value("${alipay.privateKey}")
private String privateKey; // 商户应用私钥
@Value("${alipay.publicKey}")
private String publicKey; // 支付宝公钥
@Value("${alipay.gatewayUrl}")
private String gatewayUrl; // 支付宝网关URL
/**
* 请求生成支付二维码的接口
*
* @return 生成的支付二维码地址
* @throws AlipayApiException 支付宝API异常
*/
@GetMapping("/qrCode")
public String generateQrCode() throws AlipayApiException {
// 创建支付宝客户端
DefaultAlipayClient client = new DefaultAlipayClient(gatewayUrl, appId, privateKey, "json", "UTF-8", publicKey, "RSA2");
// 创建预下单请求对象
AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest();
// 设置测试业务参数
request.setBizContent("{\"out_trade_no\":\"20220416001\"," // 商户订单号
+ "\"total_amount\":\"0.01\"," // 订单总金额
+ "\"subject\":\"测试订单\"}"); // 订单标题
// 执行预下单请求
AlipayTradePrecreateResponse response = client.execute(request);
// 判断预下单请求是否成功
if (response.isSuccess()) {
// 获取生成的支付二维码信息
final String qrCode = response.getQrCode();
// 打印二维码信息到控制台
System.out.println("二维码信息:" + qrCode);
// 记录生成支付二维码成功的日志
log.info("生成支付二维码成功:{}", response.getBody());
// 返回生成的支付二维码地址
return "支付宝支付二维码地址:" + qrCode;
} else {
// 记录生成支付二维码失败的日志
log.error("生成支付二维码失败:{}", response.getSubMsg());
// 返回生成支付二维码失败的信息
return "生成支付二维码失败:" + response.getSubMsg();
}
}
}
将获取到的请求地址发送给客户,客户在支付宝中进行支付