1、准备工作
支付宝开放平台 (alipay.com)
支付文档
登录支付宝开放平台获取沙箱环境信息
控制台
沙箱应用信息
密钥信息
2、整合SpringBoot
依赖
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| <dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>4.22.110.ALL</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
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在application.yaml中配置
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| alipay:
appId:
appPrivateKey:
alipayPublicKey:
notifyUrl:
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配置AliPayConfig
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| @Data
@Component
@ConfigurationProperties(prefix = "alipay")
public class AliPayConfig {
private String appId;
private String appPrivateKey;
private String alipayPublicKey;
private String notifyUrl;
private final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";
private final String FORMAT = "JSON";
private final String CHARSET = "UTF-8";
private final String SIGN_TYPE = "RSA2";
}
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新建AliPayController
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| @Slf4j
@RestController
@RequestMapping("/alipay")
@RequiredArgsConstructor
public class AliPayController {
private final AliPayConfig aliPayConfig;
@GetMapping("/pay")
public void pay(HttpServletResponse response) throws IOException {
AlipayClient alipayClient = new DefaultAlipayClient(aliPayConfig.getGATEWAY_URL(), aliPayConfig.getAppId(),
aliPayConfig.getAppPrivateKey(), aliPayConfig.getFORMAT(), aliPayConfig.getCHARSET(), aliPayConfig.getAlipayPublicKey(), aliPayConfig.getSIGN_TYPE());
AlipayTradeWapPayRequest alipayRequest = new AlipayTradeWapPayRequest();
alipayRequest.setNotifyUrl(aliPayConfig.getNotifyUrl());
alipayRequest.setBizContent("{" +
" \"out_trade_no\":\"1000120\"," +
" \"total_amount\":11," +
" \"subject\":\"iphone11\"," +
" \"product_code\":\"FAST_INSTANT_TRADE_PAY\"" +
" }");
String form = "";
try {
form = alipayClient.pageExecute(alipayRequest).getBody();
} catch (AlipayApiException e) {
e.printStackTrace();
}
response.setContentType("text/html;charset=" + aliPayConfig.getCHARSET());
response.getWriter().write(form);
response.getWriter().flush();
response.getWriter().close();
}
}
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测试
访问 localhost:8881/alipay/pay
搭建内网穿透
内网穿透是为了在沙箱支付的时候，在支付完成后，想回调自己项目的页面，支付宝不可以直接访问你本机的路径，必须要通过生成的外网来回到自己的项目页面，这个时候就需要内网穿透。这里使用natapp。
官网：https://natapp.cn/
下载natapp
购买隧道（免费）
配置端口和本地项目环境一致
在natapp同级目录新建config.ini
填写自己的authtoken
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|
[default]
authtoken=
clienttoken=
log=none
loglevel=ERROR
http_proxy=
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双击natapp.exe运行
配置notify异步回调
支付完成后第三方支付系统会主动通知支付结果，要实现主动通知需要在请求支付系统下单时传入NotifyUrl，这里有两个url：NotifyUrl和ReturnUrl，ReturnUrl是支付完成后支付系统携带支付结果重定向到ReturnUrl地址，NotifyUrl是支付完成后支付系统在后台定时去通知，使用NotifyUrl比使用ReturnUrl有保证。
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| alipay:
notifyUrl: http://wf5mtk.natappfree.cc/alipay/notify
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编写回调接口（被动接收支付结果）
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| @PostMapping("/notify")
public String payNotify(HttpServletRequest request) throws AlipayApiException {
if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
log.info("=========支付宝异步回调============");
Map<String, String> params = new HashMap<>();
Map<String, String[]> requestParams = request.getParameterMap();
for (String name : requestParams.keySet()) {
params.put(name, request.getParameter(name));
}
String outTradeNo = params.get("out_trade_no");
String gmtPayment = params.get("gmt_payment");
String alipayTradeNo = params.get("trade_no");
String sign = params.get("sign");
String content = AlipaySignature.getSignCheckContentV1(params);
boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8");
if (checkSignature) {
System.out.println("交易名称: " + params.get("subject"));
System.out.println("交易状态: " + params.get("trade_status"));
System.out.println("支付宝交易凭证号: " + params.get("trade_no"));
System.out.println("商户订单号: " + params.get("out_trade_no"));
System.out.println("交易金额: " + params.get("total_amount"));
System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));
System.out.println("买家付款时间: " + params.get("gmt_payment"));
System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));
}
}
return "success";
}
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测试回调
访问 localhost:8881/alipay/pay
主动查询支付结果
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| AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();
JSONObject bizContent = new JSONObject();
bizContent.put("out_trade_no", 10001230);
request.setBizContent(bizContent.toString());
AlipayTradeQueryResponse response = null;
try {
response = alipayClient.execute(request);
if (!response.isSuccess()) {
XczxPlusException.cast("请求支付查询查询失败");
} else {
System.out.println("调用成功");
}
} catch (AlipayApiException e) {
log.error("请求支付宝查询支付结果异常:{}", e.getMessage(), e);
XczxPlusException.cast("请求支付查询支付结果异常");
}
String body = response.getBody();
Map resultMap = JSON.parseObject(body, Map.class);
Map map = (Map) resultMap.get("alipay_trade_query_response");
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项目工程结构
4、附
生成二维码组件
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<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>core</artifactId>
<version>3.3.3</version>
</dependency>
<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>javase</artifactId>
<version>3.3.3</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
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工具类
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| public class QRCodeUtil {
public String createQRCode(String content, int width, int height) throws IOException {
String resultImage = "";
if (!StringUtils.isEmpty(content)) {
ServletOutputStream stream = null;
ByteArrayOutputStream os = new ByteArrayOutputStream();
@SuppressWarnings("rawtypes")
HashMap<EncodeHintType, Comparable> hints = new HashMap<>();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
hints.put(EncodeHintType.MARGIN, 1);
try {
QRCodeWriter writer = new QRCodeWriter();
BitMatrix bitMatrix = writer.encode(content, BarcodeFormat.QR_CODE, width, height, hints);
BufferedImage bufferedImage = MatrixToImageWriter.toBufferedImage(bitMatrix);
ImageIO.write(bufferedImage, "png", os);
resultImage = new String("data:image/png;base64," + EncryptUtil.encodeBase64(os.toByteArray()));
return resultImage;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("生成二维码出错");
} finally {
if (stream != null) {
stream.flush();
stream.close();
}
}
}
return null;
}
public static void main(String[] args) throws IOException {
QRCodeUtil qrCodeUtil = new QRCodeUtil();
System.out.println(qrCodeUtil.createQRCode("http://n2x659.natappfree.cc/orders/apipaytest", 200, 200));
}
}
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运行会得到一个base63串
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| data:image/png;base64,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参数AliPay.java
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| @Data
public class AliPay {
private String traceNo;
private double totalAmount;
private String subject;
private String alipayTraceNo;
}
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微信
支付寶