支付宝配置：
package alipay;
import java.io.FileWriter;
import java.io.IOException;
/**
* Created by Administrator on 2019/7/6.
*/
public class AlipayConfig {
// ↓↓↓↓↓↓↓↓↓↓请在这里配置您的基本信息↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
// 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 = "2016100100636987";//例：2016082600317257
// 商户私钥，您的PKCS8格式RSA2私钥
public static String merchant_private_key ="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";
// 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 ="MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiIrzY5TloPGev3rFfD15SZ1eZVDFah9pefGniUBQFLWHqjgOK+j+1d5FSZD/TOqVaknuNx8pUuYbFmta7e9JyZtNl1Db5pHau1AawPuIrDLJ7SLc2s/oPONaMlz/mfucJtNGmpdrRg9VRk/yi0aQNmWwrS8RJRbB8wQuQRBdSu3z7+1USjDmgC2FC5CkB+rLjKcfkyVUKfIVJ33ymMGfEmaASltiw3UhITmctQr9vLn1C60WbXjxDq6g3DXUkhU0F2wFbhGeagPhEWp3fl40CSEXKxg2quj2uXawk0jayTDTgo8eILwTsiEffI2IHyl8Ye25kiQBRZEeZ7O33/fNtwIDAQAB";
// 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
/**
* 返回的时候此页面不会返回到用户页面，只会执行你写到控制器里的地址
*/
public static String notify_url = "http://localhost:8080/notify_url.jsp";
// 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
/**
* 此页面是同步返回用户页面，也就是用户支付后看到的页面，上面的notify_url是异步返回商家操作，谢谢
* 要是看不懂就找度娘，或者多读几遍，或者去看支付宝第三方接口API，不看API直接拿去就用，遇坑不怪别人
*/
public static String return_url = "http://localhost:8080/return_url.jsp";
// 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.alipaydev.com/gateway.do";
// 日志地址
public static String log_path = "D:\\";
// ↑↑↑↑↑↑↑↑↑↑请在这里配置您的基本信息↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑
/**
* 写日志，方便测试（看网站需求，也可以改成把记录存入数据库）
*
* @param sWord
* 要写入日志里的文本内容
*/
public static void logResult(String sWord) {
FileWriter writer = null;
try {
writer = new FileWriter(log_path + "alipay_log_"
+ System.currentTimeMillis() + ".txt");
writer.write(sWord);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (writer != null) {
try {
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
<!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>交易关闭</title>
</head>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="com.alipay.api.*"%>
<%@ page import="com.alipay.api.request.*"%>
<%@ page import="alipay.AlipayConfig" %>
<%
//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
AlipayTradeCloseRequest alipayRequest = new AlipayTradeCloseRequest();
//商户订单号，商户网站订单系统中唯一订单号
String out_trade_no = new String(request.getParameter("WIDTCout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
//支付宝交易号
String trade_no = new String(request.getParameter("WIDTCtrade_no").getBytes("ISO-8859-1"),"UTF-8");
//请二选一设置
alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\"," +"\"trade_no\":\""+ trade_no +"\"}");
//请求
String result = alipayClient.execute(alipayRequest).getBody();
//输出
out.println(result);
%>
<body>
</body>
</html>
<!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>退款查询</title>
</head>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="com.alipay.api.*"%>
<%@ page import="com.alipay.api.request.*"%>
<%@ page import="alipay.AlipayConfig" %>
<%
//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
AlipayTradeFastpayRefundQueryRequest alipayRequest = new AlipayTradeFastpayRefundQueryRequest();
//商户订单号，商户网站订单系统中唯一订单号
String out_trade_no = new String(request.getParameter("WIDRQout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
//支付宝交易号
String trade_no = new String(request.getParameter("WIDRQtrade_no").getBytes("ISO-8859-1"),"UTF-8");
//请二选一设置
//请求退款接口时，传入的退款请求号，如果在退款请求时未传入，则该值为创建交易时的外部交易号，必填
String out_request_no = new String(request.getParameter("WIDRQout_request_no").getBytes("ISO-8859-1"),"UTF-8");
alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
+"\"trade_no\":\""+ trade_no +"\","
+"\"out_request_no\":\""+ out_request_no +"\"}");
//请求
String result = alipayClient.execute(alipayRequest).getBody();
//输出
out.println(result);
%>
<body>
</body>
</html>
<!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>付款</title>
</head>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="com.alipay.api.*"%>
<%@ page import="com.alipay.api.request.*"%>
<%@ page import="alipay.AlipayConfig" %>
<%
//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\"}");
//若想给BizContent增加其他可选请求参数，以增加自定义超时时间参数timeout_express来举例说明
//alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
// + "\"total_amount\":\""+ total_amount +"\","
// + "\"subject\":\""+ subject +"\","
// + "\"body\":\""+ body +"\","
// + "\"timeout_express\":\"10m\","
// + "\"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
//请求
String result = alipayClient.pageExecute(alipayRequest).getBody();
//输出
out.println(result);
%>
<body>
</body>
</html>
<!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>交易查询</title>
</head>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="com.alipay.api.*"%>
<%@ page import="com.alipay.api.request.*"%>
<%@ page import="alipay.AlipayConfig" %>
<%
//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
AlipayTradeQueryRequest alipayRequest = new AlipayTradeQueryRequest();
//商户订单号，商户网站订单系统中唯一订单号
String out_trade_no = new String(request.getParameter("WIDTQout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
//支付宝交易号
String trade_no = new String(request.getParameter("WIDTQtrade_no").getBytes("ISO-8859-1"),"UTF-8");
//请二选一设置
alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","+"\"trade_no\":\""+ trade_no +"\"}");
//请求
String result = alipayClient.execute(alipayRequest).getBody();
//输出
out.println(result);
%>
<body>
</body>
</html>
<!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>退款</title>
</head>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="com.alipay.api.*"%>
<%@ page import="com.alipay.api.request.*"%>
<%@ page import="alipay.AlipayConfig" %>
<%
//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
AlipayTradeRefundRequest alipayRequest = new AlipayTradeRefundRequest();
//商户订单号，商户网站订单系统中唯一订单号
String out_trade_no = new String(request.getParameter("WIDTRout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
//支付宝交易号
String trade_no = new String(request.getParameter("WIDTRtrade_no").getBytes("ISO-8859-1"),"UTF-8");
//请二选一设置
//需要退款的金额，该金额不能大于订单金额，必填
String refund_amount = new String(request.getParameter("WIDTRrefund_amount").getBytes("ISO-8859-1"),"UTF-8");
//退款的原因说明
String refund_reason = new String(request.getParameter("WIDTRrefund_reason").getBytes("ISO-8859-1"),"UTF-8");
//标识一次退款请求，同一笔交易多次退款需要保证唯一，如需部分退款，则此参数必传
String out_request_no = new String(request.getParameter("WIDTRout_request_no").getBytes("ISO-8859-1"),"UTF-8");
alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
+ "\"trade_no\":\""+ trade_no +"\","
+ "\"refund_amount\":\""+ refund_amount +"\","
+ "\"refund_reason\":\""+ refund_reason +"\","
+ "\"out_request_no\":\""+ out_request_no +"\"}");
//请求
String result = alipayClient.execute(alipayRequest).getBody();
//输出
out.println(result);
%>
<body>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!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;
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
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=alipay.trade.refund.jsp 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>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@ page import="java.util.*"%>
<%@ page import="java.util.Map"%>
<%@ page import="com.alipay.api.internal.util.*"%>
<%@ page import="alipay.AlipayConfig" %>
<%
/* *
* 功能：支付宝服务器异步通知页面
* 日期：2017-03-30
* 说明：
* 以下代码只是为了方便商户测试而提供的样例代码，商户可以根据自己网站的需要，按照技术文档编写,并非一定要使用该代码。
* 该代码仅供学习和研究支付宝接口使用，只是提供一个参考。
*************************页面功能说明*************************
* 创建该页面文件时，请留心该页面文件中无任何HTML代码及空格。
* 该页面不能在本机电脑测试，请到服务器上做测试。请确保外部可以访问该页面。
* 如果没有收到该页面返回的 success
* 建议该页面只做支付成功的业务逻辑处理，退款的处理请以调用退款查询接口的结果为准。
*/
//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
//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
//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
//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）——
%>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<!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>电脑网站支付return_url</title>
</head>
<%@ page import="java.util.*"%>
<%@ page import="java.util.Map"%>
<%@ page import="com.alipay.api.internal.util.*"%>
<%@ page import="alipay.AlipayConfig" %>
<%
/* *
* 功能：支付宝服务器同步通知页面
* 日期：2017-03-30
* 说明：
* 以下代码只是为了方便商户测试而提供的样例代码，商户可以根据自己网站的需要，按照技术文档编写,并非一定要使用该代码。
* 该代码仅供学习和研究支付宝接口使用，只是提供一个参考。
*************************页面功能说明*************************
* 该页面仅做页面展示，业务逻辑处理请勿在该页面执行
*/
//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) {
//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("交易编号:"+trade_no+"<br/>订单编号:"+out_trade_no+"<br/>订单金额:"+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）——
%>
<body>
</body>
</html>
来源：https://www.cnblogs.com/hong999/p/11150233.html