支付宝沙箱支付功能步骤详解
沙箱地址
我的支付账号
买家账号： [email protected]
登陆密码：111111
支付宝网关地址： https://openapi-sandbox.dl.alipaydev.com/gateway.do
（其他相关信息可以在支付宝沙箱页面查询）
1.导入依赖：支付宝沙箱完整版sdk
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>4.22.110.ALL</version>
</dependency>
<!-- 以下是JSONobject 使用 -->
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.7.20</version>
</dependency>
2.配置application.yml
alipay:
appId: 9021000123607186
appPrivateKey: (支付宝沙箱支付私钥)
alipayPublicKey: (支付宝沙箱支付公钥)
notifyUrl: http://ku4nm3.natappfree.cc/alipay/notify #配置内网穿透
3.创建AliPayConfig.java （用来获取 application.yml 中的参数信息）
package com.whq.newsapp.newsapp.configure;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
@Data
@Component
@ConfigurationProperties(prefix = "alipay") //@ConfigurationProperties和@Value注解用于获取配置文件中的属性定义并绑定到Java Bean或属性中
//支付宝沙箱Alipay配置
public class AliPayConfig {
private String appId;
private String appPrivateKey;
private String alipayPublicKey;
private String notifyUrl;
}
4.创建AliPay 实体类，用来获取传递的订单信息
package com.whq.newsapp.newsapp.entity;
import lombok.Data;
//AliPay参数类
@Data
public class AliPay {
private String traceNo;
private double totalAmount;
private String subject;
private String alipayTraceNo;
}
5.创建 AliPayController 控制层
package com.whq.newsapp.newsapp.controller;
import cn.hutool.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.whq.newsapp.newsapp.configure.AliPayConfig;
import com.whq.newsapp.newsapp.entity.AliPay;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
//请求示例 ======= http://localhost:8080/alipay/pay?subject=香蕉&traceNo=202208221661165525068&totalAmount=6.99
@RestController
@RequestMapping("/alipay")
public class AliPayController {
private static final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do"; //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;
//@Resource
//private OrdersMapper ordersMapper;
@GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx
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.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), 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()); // 支付所买物品的名称
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
String form = "";
try {
form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
} catch (AlipayApiException e) {
e.printStackTrace();
}
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();
}
@PostMapping("/notify") // 注意这里必须是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.getAlipayPublicKey(), "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";
}
}
总结：
注意：@ConfigProperties( prefix = “xxx” )
此注解用来标注 config 类，获取配置文件的参数内容
完成支付宝沙箱支付功能核心步骤：
1.创建client
AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
2.创建request
AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
3.执行请求
request.setBizContent(bizContent.toString());
// 执行请求，拿到响应的结果，返回给浏览器
String form = "";
try {
form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
} catch (AlipayApiException e) {
e.printStackTrace();
}
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();
}
4.更新数据库状态