1.用支付宝账号登录【开放控制平台】创建应用获取 appid?
2.选择沙箱模拟环境?
3.沙箱应用-》获取appid(一个appid绑定一个收款支付宝账户)?
4.利用开发助手工具生成RSA2密钥?
公钥:传给支付宝平台?
私钥:配置代码中,签名用?
5.生成密钥后,进行配置?
返回平台 --> 开发信息 --> 自定义密钥 --> 设置并启用(加签)--> 应用公钥?
保存后生成支付宝公钥(需要配置到项目中)?
6.支付宝网关(配置代码中)?
https://openapi.alipaydev.com/gateway.do?
NATAPP-内网穿透 基于ngrok的国内高速内网映射工具?
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
</dependency>
spring:
application:
name: alipay-demo
server:
port: 9999
alipay:
appId: 收款账号对应的应用id
privateKey: 应用私钥
publicKey: 支付宝公钥
returnUrl: 127.0.0.1:9999/order/return
notifyUrl: 127.0.0.1:9999/order/notify-url(异步回调地址,http/https开头必须外网能访问)
refundNotifyUrl: https://blog.csdn.net/qq_37630282(同步回调地址,需要外网能够访问)
gatewayUrl: https://openapi.alipaydev.com/gateway.do(沙箱官网与正式网关不同,此处为沙箱网关)
charset: utf-8
signType: RSA2
支付的配置类
@Data
@Component
@ConfigurationProperties(prefix = "alipay")
public class AlipayConfig {
private String appId;
private String privateKey;
private String publicKey;
private String returnUrl;
private String notifyUrl;
private String refundNotifyUrl;
private String gatewayUrl;
private String charset;
private String signType;
}
支付的实体类
@Data
public class AliPay {
private String traceNo; // 订单编号
private double totalAmount; // 总金额
private String subject; // 商品名称
private String alipayTraceNo;
}
支付流程
1.在Controller中配置gateway_url(调用支付宝url的一个网关地址)、format(JSON形式)、charset(UTF-8)、sign_type(签名方式-rsa2)
2.编写Get请求,(参数是AliPay的配置类里生成的订单号、总金额、支付的名称、支付宝交易凭证号、HttpServletResponse)
3.创建Client(由通用SDK提供的Client,负责调支付宝的API,设置参数包含网关地址、appid、密钥、公钥、format、charset、签名方式)?
4.创建 AlipayTradePagePayRequest,配置notifyUrl并设置Request参数(参数包含订单号、总金额、支付的名称)(格式:JSON格式)
5.通过AlipayClient执行request调用SDK生成表单,用HttpServletResponse(浏览器响应的一个流)写表单的内容,创建一个html的网页)
6.回调接口(Post)先验证交易状态是否成功,获取request里面的信息。支付宝验签(使用的是AlipaySignature(通用SDK提供的类)获取一个String字符串将其与sign签名验证),用 OrderMapper 更新到数据库)退款流程
1.创建Client(由通用SDK提供的Client,负责调用支付宝的API)(参数包含网关地址、appid、密钥、公钥、format、charset、签名方式)
2.创建 AlipayTradePagePayRequest,设置Request参数(参数包含支付宝回调的订单流水号、总金额、我的订单编号)(格式:JSON格式)
3.通过 AlipayClient 执行 request 获取 response,通过isSuccess判断是否成功,成功后更新数据库状态。
@RestController
@RequestMapping("/alipay")
public class AliPayController {
private static final String GATEWAY_URL = "https://openapi.alipaydev.com/gateway.do";
private static final String FORMAT = "JSON";
private static final String CHARSET = "UTF-8";
//签名方式
private static final String SIGN_TYPE = "RSA2";
@Resource
private AlipayConfig aliPayConfig;
/**
* 支付接口
*/
@GetMapping("/pay")
public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception {
// 1. 创建Client,通用SDK提供的Client,负责调用支付宝的API
AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
aliPayConfig.getPrivateKey(), FORMAT, CHARSET,
aliPayConfig.getPublicKey(), SIGN_TYPE);
// 2. 创建 Request并设置Request参数
AlipayTradePagePayRequest request = new AlipayTradePagePayRequest(); // 发送请求的 Request类
request.setNotifyUrl(aliPayConfig.getNotifyUrl());
JSONObject bizContent = new JSONObject();
bizContent.set("out_trade_no", aliPay.getTraceNo()); // 我们自己生成的订单编号
bizContent.set("total_amount", aliPay.getTotalAmount()); // 订单的总金额
bizContent.set("subject", aliPay.getSubject()); // 支付的名称
bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY"); // 固定配置
request.setBizContent(bizContent.toString());
// 执行请求,拿到响应的结果,返回给浏览器
AlipayTradePagePayResponse response = alipayClient.pageExecute(request);
if(response.isSuccess()){
//System.out.println("调用成功");
log.info("调用成功");
String form = response.getBody();
httpResponse.setContentType("text/html;charset=" + CHARSET);
httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面
httpResponse.getWriter().flush();
httpResponse.getWriter().close();
return form;
} else {
//System.out.println("调用失败");
log.info("调用失败,返回码=====" + response.getCode() + "返回描述=====" + response.getMsg());
throw new RuntimeException("调用失败");
}
}
/**
* 回调接口
*/
@PostMapping("/notify") // 必须是POST接口
public String payNotify(HttpServletRequest request) throws Exception {
if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
System.out.println("=========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));
// System.out.println(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.getPublicKey(), "UTF-8"); // 验证签名
// 支付宝验签
if (checkSignature) {
// 验签通过
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";
}
/**
* 退款接口
*/
@GetMapping("/return")
public Result returnPay(AliPay aliPay) throws AlipayApiException {
// 7天无理由退款
String now = DateUtil.now();
Orders orders = ordersMapper.getByNo(aliPay.getTraceNo());
if (orders != null) {
// hutool工具类,判断时间间隔
long between = DateUtil.between(DateUtil.parseDateTime(orders.getPaymentTime()), DateUtil.parseDateTime(now), DateUnit.DAY);
if (between > 7) {
return Result.error("-1", "该订单已超过7天,不支持退款");
}
}
// 1. 创建Client,通用SDK提供的Client,负责调用支付宝的API
AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL,
aliPayConfig.getAppId(), aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET,
aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
// 2. 创建 Request,设置参数
AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();
JSONObject bizContent = new JSONObject();
bizContent.set("trade_no", aliPay.getAlipayTraceNo()); // 支付宝回调的订单流水号
bizContent.set("refund_amount", aliPay.getTotalAmount()); // 订单的总金额
bizContent.set("out_request_no", aliPay.getTraceNo()); // 我的订单编号
// 返回参数选项,按需传入
//JSONArray queryOptions = new JSONArray();
//queryOptions.add("refund_detail_item_list");
//bizContent.put("query_options", queryOptions);
request.setBizContent(bizContent.toString());
// 3. 执行请求
AlipayTradeRefundResponse response = alipayClient.execute(request);
if (response.isSuccess()) { // 退款成功,isSuccess 为true
System.out.println("调用成功");
// 4. 更新数据库状态
ordersMapper.updatePayState(aliPay.getTraceNo(), "已退款", now);
return Result.success();
} else { // 退款失败,isSuccess 为false
System.out.println(response.getBody());
return Result.error(response.getCode(), response.getBody());
}
}
}