JAVA支付功能
尚硅谷笔记
使用场景：下单后调用H5页面，然后调用支付宝界面
一、微信支付
二、支付宝沙箱支付
支付宝沙箱地址:支付宝开放平台 (alipay.com)
https://open.alipay.com/develop/sandbox/account
maven依赖
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>4.22.110.ALL</version>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.7.20</version>
</dependency>
application.yml配置
alipay:
appId: #开发者ID
appPrivateKey: # 开发者私钥
alipayPublicKey: # 支付宝公钥，由支付宝生成
notifyUrl: # 返回地址 使用公网ip http://y5ssni.natappfree.cc/alipay/notify 内网穿透
controller类
package com.p.controller;
@RestController
@RequestMapping("/alipay")
@Slf4j
public class payController {
@Value("${alipay.appId}")
private String appId;
@Value("${alipay.appPrivateKey}")
private String appPrivateKey;
@Value("${alipay.alipayPublicKey}")
private String alipayPublicKey;
@Value("${alipay.notifyUrl}")
private String notifyUrl;
// @Value("${alipay.returnUrl}")
private String returnUrl;
private static final String GATEWAY_URL = "https://openapi-sandbox.dl.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";
@GetMapping("/pay")
public void paytest(pay 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,appId,
appPrivateKey, FORMAT, CHARSET, alipayPublicKey, 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(notifyUrl);
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
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, alipayPublicKey, "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"));
// 查询订单
}
}
return "success";
}
}
支付实体类
@Data
public class pay {
private String traceNo;
private double totalAmount;
private String subject;
private String alipayTraceNo;
}
访问：http://localhost:8080/alipay/pay?traceNo=1224&totalAmount=20&subject=2 测试支付效果
在支付完成后，后台打印出/notify 接口信息
三、支付宝沙盒支付和退款
- 支付
maven依赖
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.p</groupId>
<artifactId>pay_test</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.7.20</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>4.9.28.ALL</version>
</dependency>
</dependencies>
</project>
构建templates index页面
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>支付宝电脑网站支付</title>
<style>
* {
margin: 0;
padding: 0;
}
ul, ol {
list-style: none;
}
body {
font-family: "Helvetica Neue", Helvetica, Arial, "Lucida Grande",
sans-serif;
}
.tab-head {
margin-left: 120px;
margin-bottom: 10px;
}
.tab-content {
clear: left;
display: none;
}
h2 {
border-bottom: solid #02aaf1 2px;
width: 200px;
height: 25px;
margin: 0;
float: left;
text-align: center;
font-size: 16px;
}
.selected {
color: #FFFFFF;
background-color: #02aaf1;
}
.show {
clear: left;
display: block;
}
.hidden {
display: none;
}
.new-btn-login-sp {
padding: 1px;
display: inline-block;
width: 75%;
}
.new-btn-login {
background-color: #02aaf1;
color: #FFFFFF;
font-weight: bold;
border: none;
width: 100%;
height: 30px;
border-radius: 5px;
font-size: 16px;
}
#main {
width: 100%;
margin: 0 auto;
font-size: 14px;
}
.red-star {
color: #f00;
width: 10px;
display: inline-block;
}
.null-star {
color: #fff;
}
.content {
margin-top: 5px;
}
.content dt {
width: 100px;
display: inline-block;
float: left;
margin-left: 20px;
color: #666;
font-size: 13px;
margin-top: 8px;
}
.content dd {
margin-left: 120px;
margin-bottom: 5px;
}
.content dd input {
width: 85%;
height: 28px;
border: 0;
-webkit-border-radius: 0;
-webkit-appearance: none;
}
#foot {
margin-top: 10px;
position: absolute;
bottom: 15px;
width: 100%;
}
.foot-ul {
width: 100%;
}
.foot-ul li {
width: 100%;
text-align: center;
color: #666;
}
.note-help {
color: #999999;
font-size: 12px;
line-height: 130%;
margin-top: 5px;
width: 100%;
display: block;
}
#btn-dd {
margin: 20px;
text-align: center;
}
.foot-ul {
width: 100%;
}
.one_line {
display: block;
height: 1px;
border: 0;
border-top: 1px solid #eeeeee;
width: 100%;
margin-left: 20px;
}
.am-header {
display: -webkit-box;
display: -ms-flexbox;
display: box;
width: 100%;
position: relative;
padding: 7px 0;
-webkit-box-sizing: border-box;
-ms-box-sizing: border-box;
box-sizing: border-box;
background: #1D222D;
height: 50px;
text-align: center;
-webkit-box-pack: center;
-ms-flex-pack: center;
box-pack: center;
-webkit-box-align: center;
-ms-flex-align: center;
box-align: center;
}
.am-header h1 {
-webkit-box-flex: 1;
-ms-flex: 1;
box-flex: 1;
line-height: 18px;
text-align: center;
font-size: 18px;
font-weight: 300;
color: #fff;
}
</style>
</head>
<body text=#000000 bgColor="#ffffff" leftMargin=0 topMargin=4>
<header class="am-header">
<h1>支付宝电脑网站支付体验入口页</h1>
</header>
<div id="main">
<div id="tabhead" class="tab-head">
<h2 id="tab1" class="selected" name="tab">付 款</h2>
<h2 id="tab2" name="tab">交 易 查 询</h2>
<h2 id="tab3" name="tab">退 款</h2>
<h2 id="tab4" name="tab">退 款 查 询</h2>
<h2 id="tab5" name="tab">交 易 关 闭</h2>
</div>
<!-- <form name=alipayment action=alipay.trade.page.pay.jsp method=post-->
<form name=alipayment action=/pay/showPay method=post
target="_blank">
<div id="body1" class="show" name="divcontent">
<dl class="content">
<dt>商户订单号 ：</dt>
<dd>
<input id="WIDout_trade_no" name="WIDout_trade_no" />
</dd>
<hr class="one_line">
<dt>订单名称 ：</dt>
<dd>
<input id="WIDsubject" name="WIDsubject" />
</dd>
<hr class="one_line">
<dt>付款金额 ：</dt>
<dd>
<input id="WIDtotal_amount" name="WIDtotal_amount" />
</dd>
<hr class="one_line">
<dt>商品描述：</dt>
<dd>
<input id="WIDbody" name="WIDbody" />
</dd>
<hr class="one_line">
<dt></dt>
<dd id="btn-dd">
<span class="new-btn-login-sp">
<button class="new-btn-login" type="submit"
style="text-align: center;">付 款</button>
</span> <span class="note-help">如果您点击“付款”按钮，即表示您同意该次的执行操作。</span>
</dd>
</dl>
</div>
</form>
<form name=tradequery action=alipay.trade.query.jsp method=post
target="_blank">
<div id="body2" class="tab-content" name="divcontent">
<dl class="content">
<dt>商户订单号 ：</dt>
<dd>
<input id="WIDTQout_trade_no" name="WIDTQout_trade_no" />
</dd>
<hr class="one_line">
<dt>支付宝交易号 ：</dt>
<dd>
<input id="WIDTQtrade_no" name="WIDTQtrade_no" />
</dd>
<hr class="one_line">
<dt></dt>
<dd id="btn-dd">
<span class="new-btn-login-sp">
<button class="new-btn-login" type="submit"
style="text-align: center;">交 易 查 询</button>
</span> <span class="note-help">商户订单号与支付宝交易号二选一，如果您点击“交易查询”按钮，即表示您同意该次的执行操作。</span>
</dd>
</dl>
</div>
</form>
<form name=traderefund action=/payout/outpay method=post
target="_blank">
<div id="body3" class="tab-content" name="divcontent">
<dl class="content">
<dt>商户订单号 ：</dt>
<dd>
<input id="WIDTRout_trade_no" name="WIDTRout_trade_no" />
</dd>
<hr class="one_line">
<dt>支付宝交易号 ：</dt>
<dd>
<input id="WIDTRtrade_no" name="WIDTRtrade_no" />
</dd>
<hr class="one_line">
<dt>退款金额 ：</dt>
<dd>
<input id="WIDTRrefund_amount" name="WIDTRrefund_amount" />
</dd>
<hr class="one_line">
<dt>退款原因 ：</dt>
<dd>
<input id="WIDTRrefund_reason" name="WIDTRrefund_reason" />
</dd>
<hr class="one_line">
<dt>退款请求号 ：</dt>
<dd>
<input id="WIDTRout_request_no" name="WIDTRout_request_no" />
</dd>
<hr class="one_line">
<dt></dt>
<dd id="btn-dd">
<span class="new-btn-login-sp">
<button class="new-btn-login" type="submit"
style="text-align: center;">退 款</button>
</span> <span class="note-help">商户订单号与支付宝交易号二选一，如果您点击“退款”按钮，即表示您同意该次的执行操作。</span>
</dd>
</dl>
</div>
</form>
<form name=traderefundquery
action=alipay.trade.fastpay.refund.query.jsp method=post
target="_blank">
<div id="body4" class="tab-content" name="divcontent">
<dl class="content">
<dt>商户订单号 ：</dt>
<dd>
<input id="WIDRQout_trade_no" name="WIDRQout_trade_no" />
</dd>
<hr class="one_line">
<dt>支付宝交易号 ：</dt>
<dd>
<input id="WIDRQtrade_no" name="WIDRQtrade_no" />
</dd>
<hr class="one_line">
<dt>退款请求号 ：</dt>
<dd>
<input id="WIDRQout_request_no" name="WIDRQout_request_no" />
</dd>
<hr class="one_line">
<dt></dt>
<dd id="btn-dd">
<span class="new-btn-login-sp">
<button class="new-btn-login" type="submit"
style="text-align: center;">退 款 查 询</button>
</span> <span class="note-help">商户订单号与支付宝交易号二选一，如果您点击“退款查询”按钮，即表示您同意该次的执行操作。</span>
</dd>
</dl>
</div>
</form>
<form name=tradeclose action=alipay.trade.close.jsp method=post
target="_blank">
<div id="body5" class="tab-content" name="divcontent">
<dl class="content">
<dt>商户订单号 ：</dt>
<dd>
<input id="WIDTCout_trade_no" name="WIDTCout_trade_no" />
</dd>
<hr class="one_line">
<dt>支付宝交易号 ：</dt>
<dd>
<input id="WIDTCtrade_no" name="WIDTCtrade_no" />
</dd>
<hr class="one_line">
<dt></dt>
<dd id="btn-dd">
<span class="new-btn-login-sp">
<button class="new-btn-login" type="submit"
style="text-align: center;">交 易 关 闭</button>
</span> <span class="note-help">商户订单号与支付宝交易号二选一，如果您点击“交易关闭”按钮，即表示您同意该次的执行操作。</span>
</dd>
</dl>
</div>
</form>
<div id="foot">
<ul class="foot-ul">
<li>支付宝版权所有 2015-2018 ALIPAY.COM</li>
</ul>
</div>
</div>
</body>
<script language="javascript">
var tabs = document.getElementsByName('tab');
var contents = document.getElementsByName('divcontent');
(function changeTab(tab) {
for(var i = 0, len = tabs.length; i < len; i++) {
tabs[i].onmouseover = showTab;
}
})();
function showTab() {
for(var i = 0, len = tabs.length; i < len; i++) {
if(tabs[i] === this) {
tabs[i].className = 'selected';
contents[i].className = 'show';
} else {
tabs[i].className = '';
contents[i].className = 'tab-content';
}
}
}
function GetDateNow() {
var vNow = new Date();
var sNow = "";
sNow += String(vNow.getFullYear());
sNow += String(vNow.getMonth() + 1);
sNow += String(vNow.getDate());
sNow += String(vNow.getHours());
sNow += String(vNow.getMinutes());
sNow += String(vNow.getSeconds());
sNow += String(vNow.getMilliseconds());
document.getElementById("WIDout_trade_no").value = sNow;
document.getElementById("WIDsubject").value = "测试";
document.getElementById("WIDtotal_amount").value = "0.01";
}
GetDateNow();
</script>
</html>
配置沙盒秘钥 AlipayConfig
package com.p.config;
public class AlipayConfig {
// 应用ID,您的APPID，收款账号既是您的APPID对应支付宝账号
public static String app_id = "";
// 商户私钥，您的PKCS8格式RSA2私钥
public static String merchant_private_key = "";
// 支付宝公钥,查看地址：https://openhome.alipay.com/platform/keyManage.htm 对应APPID下的支付宝公钥。
public static String alipay_public_key = "";
// 服务器异步通知页面路径 需http://格式的完整路径，不能加?id=123这类自定义参数，必须外网可以正常访问
// public static String notify_url = "http://127.0.0.1:8080/alipay.trade.page.pay-JAVA-UTF-8/notify_url.jsp";
public static String notify_url = "https://zkvyfcugvxnevzfq.bj.fastnat.site/callback/notify";
// 页面跳转同步通知页面路径 需http://格式的完整路径，不能加?id=123这类自定义参数，必须外网可以正常访问
// public static String return_url = "http://127.0.0.1:8080/alipay.trade.page.pay-JAVA-UTF-8/return_url.jsp";
public static String return_url = "https://zkvyfcugvxnevzfq.bj.fastnat.site/callback/return";
// 签名方式
public static String sign_type = "RSA2";
// 字符编码格式
public static String charset = "utf-8";
// 支付宝网关
public static String gatewayUrl = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";
// 日志目录
public static String log_path = "./";
}
支付 PayController2
package com.p.controller;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.p.config.AlipayConfig;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Controller
@RequestMapping("/pay")
public class PayController2 {
@RequestMapping("/index")
public String payIndex() {
return "index";
}
/**
* 代码从alipay.trade.page.pay.jsp考过来即可，用于显示支付宝官方支付页面
*
* @param request
* @param response
* @throws Exception
*/
@RequestMapping("/showPay")
public void showPay(HttpServletRequest request, HttpServletResponse response) throws Exception {
//获得初始化的AlipayClient
AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
//设置请求参数
AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
alipayRequest.setReturnUrl(AlipayConfig.return_url);
alipayRequest.setNotifyUrl(AlipayConfig.notify_url);
//商户订单号，商户网站订单系统中唯一订单号，必填
String out_trade_no = new String(request.getParameter("WIDout_trade_no").getBytes("ISO-8859-1"), "UTF-8");
//付款金额，必填
String total_amount = new String(request.getParameter("WIDtotal_amount").getBytes("ISO-8859-1"), "UTF-8");
//订单名称，必填
String subject = new String(request.getParameter("WIDsubject").getBytes("ISO-8859-1"), "UTF-8");
//商品描述，可空
String body = new String(request.getParameter("WIDbody").getBytes("ISO-8859-1"), "UTF-8");
alipayRequest.setBizContent("{\"out_trade_no\":\"" + out_trade_no + "\","
+ "\"total_amount\":\"" + total_amount + "\","
+ "\"subject\":\"" + subject + "\","
+ "\"body\":\"" + body + "\","
+ "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
//请求参数可查阅【电脑网站支付的API文档-alipay.trade.page.pay-请求参数】章节
//构建支付宝官方支付页面
String top = "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n" +
"<html>\n" +
"<head>\n" +
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n" +
"<title>付款</title>\n" +
"</head>";
String result = alipayClient.pageExecute(alipayRequest).getBody();
String bottom = "<body>\n" +
"</body>\n" +
"</html>";
//输出
response.getWriter().println(top + result + bottom);
}
}
回调方法 CallbackController
package com.p.controller;
import com.alipay.api.internal.util.AlipaySignature;
import com.p.config.AlipayConfig;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* @Author: Kevin·Lu
* @Email: kevinlu98@qq.com
* @Date: 2020/2/20 11:50 上午
* @Description: 回调
*/
@Controller
@RequestMapping("/callback")
public class CallbackController {
/**
* 同步回调地址 从return_url.jsp拷贝
*
* @param request
* @param response
* @throws Exception
*/
@RequestMapping("/return")
public void returnUrl(HttpServletRequest request, HttpServletResponse response) throws Exception {
PrintWriter out = response.getWriter();
//获取支付宝GET过来反馈信息
Map<String, String> params = new HashMap<String, String>();
Map<String, String[]> requestParams = request.getParameterMap();
for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext(); ) {
String name = (String) iter.next();
String[] values = (String[]) requestParams.get(name);
String valueStr = "";
for (int i = 0; i < values.length; i++) {
valueStr = (i == values.length - 1) ? valueStr + values[i]
: valueStr + values[i] + ",";
}
//乱码解决，这段代码在出现乱码时使用
valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
params.put(name, valueStr);
}
boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); //调用SDK验证签名
//——请在这里编写您的程序（以下代码仅作参考）——
if (signVerified) {
System.out.println("同步验证成功");
//商户订单号
String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"), "UTF-8");
//支付宝交易号
String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"), "UTF-8");
//付款金额
String total_amount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"), "UTF-8");
out.println("trade_no:" + trade_no + "<br/>out_trade_no:" + out_trade_no + "<br/>total_amount:" + total_amount);
} else {
out.println("验签失败");
}
//——请在这里编写您的程序（以上代码仅作参考）——
// return "";
}
/**
* 异步回调地址 从notify_url.jsp拷贝
*
* @param request
* @param response
* @throws Exception
*/
@RequestMapping("/notify")
public void notifyUrl(HttpServletRequest request, HttpServletResponse response) throws Exception {
System.out.println("异步验证");
PrintWriter out = response.getWriter();
//获取支付宝POST过来反馈信息
Map<String, String> params = new HashMap<String, String>();
Map<String, String[]> requestParams = request.getParameterMap();
for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext(); ) {
String name = (String) iter.next();
String[] values = (String[]) requestParams.get(name);
String valueStr = "";
for (int i = 0; i < values.length; i++) {
valueStr = (i == values.length - 1) ? valueStr + values[i]
: valueStr + values[i] + ",";
}
//乱码解决，这段代码在出现乱码时使用
valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
params.put(name, valueStr);
}
boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); //调用SDK验证签名
//——请在这里编写您的程序（以下代码仅作参考）——
/* 实际验证过程建议商户务必添加以下校验：
1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
4、验证app_id是否为该商户本身。
*/
if (signVerified) {//验证成功
System.out.println("异步验证成功");
//商户订单号
String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"), "UTF-8");
//支付宝交易号
String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"), "UTF-8");
//交易状态
String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"), "UTF-8");
if (trade_status.equals("TRADE_FINISHED")) {
//判断该笔订单是否在商户网站中已经做过处理
//如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
//如果有做过处理，不执行商户的业务程序
System.out.println("订单已完成");
//注意：
//退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
} else if (trade_status.equals("TRADE_SUCCESS")) {
//判断该笔订单是否在商户网站中已经做过处理
//如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
//如果有做过处理，不执行商户的业务程序
//我们的业务代码
System.out.println("订单付款成功");
//注意：
//付款完成后，支付宝系统发送该交易状态通知
}
out.println("success");
} else {//验证失败
out.println("fail");
//调试用，写文本函数记录程序运行情况是否正常
//String sWord = AlipaySignature.getSignCheckContentV1(params);
//AlipayConfig.logResult(sWord);
}
//——请在这里编写您的程序（以上代码仅作参考）——
// return "";
}
}
- 退款 outPayTest
package com.p.controller;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.domain.AlipayTradeRefundModel;
import com.alipay.api.request.AlipayTradeRefundRequest;
import com.alipay.api.response.AlipayTradeRefundResponse;
import com.p.config.AlipayConfig;
import com.p.pojo.Pay2;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Controller
@RequestMapping("/payout")
public class payout {
@PostMapping("/outpay")
@ResponseBody
public String outPayTest( Pay2 pay2){
// AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
//设置请求参数
AlipayTradeRefundModel refundModel = new AlipayTradeRefundModel();
refundModel.setTradeNo(pay2.getWIDTRout_trade_no());
refundModel.setRefundAmount(pay2.getWIDTRrefund_amount());
refundModel.setRefundReason("商品退款");
AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();
request.setBizModel(refundModel);
String msg = "";
try{
AlipayTradeRefundResponse response = alipayClient.execute(request);
System.out.println(response.getMsg()+"\n");
System.out.println(response.getBody());
msg = response.getBody();
}catch(Exception e){
e.printStackTrace();
}
return msg;
}
}
- 实体类 Pay2
package com.p.pojo;
public class Pay2 {
private String WIDTRout_trade_no;
private String WIDTRtrade_no;
private String WIDTRrefund_amount;
private String WIDTRrefund_reason;
private String WIDTRout_request_no;
public Pay2() {
}
public Pay2(String WIDTRout_trade_no, String WIDTRtrade_no, String WIDTRrefund_amount, String WIDTRrefund_reason, String WIDTRout_request_no) {
this.WIDTRout_trade_no = WIDTRout_trade_no;
this.WIDTRtrade_no = WIDTRtrade_no;
this.WIDTRrefund_amount = WIDTRrefund_amount;
this.WIDTRrefund_reason = WIDTRrefund_reason;
this.WIDTRout_request_no = WIDTRout_request_no;
}
public String getWIDTRout_trade_no() {
return WIDTRout_trade_no;
}
public void setWIDTRout_trade_no(String WIDTRout_trade_no) {
this.WIDTRout_trade_no = WIDTRout_trade_no;
}
public String getWIDTRtrade_no() {
return WIDTRtrade_no;
}
public void setWIDTRtrade_no(String WIDTRtrade_no) {
this.WIDTRtrade_no = WIDTRtrade_no;
}
public String getWIDTRrefund_amount() {
return WIDTRrefund_amount;
}
public void setWIDTRrefund_amount(String WIDTRrefund_amount) {
this.WIDTRrefund_amount = WIDTRrefund_amount;
}
public String getWIDTRrefund_reason() {
return WIDTRrefund_reason;
}
public void setWIDTRrefund_reason(String WIDTRrefund_reason) {
this.WIDTRrefund_reason = WIDTRrefund_reason;
}
public String getWIDTRout_request_no() {
return WIDTRout_request_no;
}
public void setWIDTRout_request_no(String WIDTRout_request_no) {
this.WIDTRout_request_no = WIDTRout_request_no;
}
}
