从零搭建支付宝支付案例
1.注册开发者账号，获取【公钥】和【私钥】，对支付宝提供给开发者的账号进行充值，请参考“ 会吐泡的鱼”的博客一到六步：https://blog.csdn.net/suprezheng/article/details/84931225
（注：该文档复制粘贴就能跑，如对里面参数不懂地方，欢迎留言，博主一一回应）
2.SpringBoot pom文件配置
<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>
<parent>
<groupId>com.edu</groupId>
<artifactId>edu</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>edu-pay</artifactId>
<dependencies>
<!-- https://mvnrepository.com/artifact/com.alipay.sdk/alipay-sdk-java -->
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>3.0.0</version>
</dependency>
<!-- 因为sdk有用这个包，所以需要有这个的哦。不过一般springboot项目已经自己引入了，就不用引入哈 -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<!-- 这个包是用户参数转成JSON用的 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.33</version>
</dependency>
</dependencies>
<build>
<plugins>
<!--跳过测试类打包 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<!-- maven打包插件 -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.yml配置
server:
port: 8888
servlet:
context-path: /
spring:
mvc:
view:
prefix: /WEB-INF/views/
suffix: .jsp
3.前端jsp页面
前端jsp页面是我从蚂蚁金服开发者中心下载的，
<%@ 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;
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=/order/alipay method=post
>
<div id="body1" class="show" name="divcontent">
<dl class="content">
<dt>商户订单号 ：</dt>
<dd>
<input id="out_trade_no" name="out_trade_no" />
</dd>
<hr class="one_line">
<dt>订单名称 ：</dt>
<dd>
<input id="subject" name="subject" />
</dd>
<hr class="one_line">
<dt>付款金额 ：</dt>
<dd>
<input id="total_amount" name="total_amount" />
</dd>
<hr class="one_line">
<dt>商品描述：</dt>
<dd>
<input id="body" name="body" />
</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("out_trade_no").value = sNow;
document.getElementById("subject").value = "测试";
document.getElementById("total_amount").value = "0.01";
}
GetDateNow();
</script>
</html>
4.后台包结构
alipay.properties,用注册开发者账号时，得到的相应的参数替代该文档****
# 应用ID,您的APPID，收款账号既是您的APPID对应支付宝账号
app_id =****
# 商户私钥，您的PKCS8格式RSA2私钥
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。
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
notify_url=http://本机IP4地址:8888/notify_url.jsp
#notify_url =http://www.baidu.com
#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
return_url=http://本机IP4地址:8888/return
#return_url =http://www.baidu.com
# 签名方式
sign_type=RSA2
# 字符编码格式
charset=UTF-8
#数据格式
format=json
# 支付宝网关
gatewayUrl=https://openapi.alipaydev.com/gateway.do
#
log_path ="C:\\"
method=alipay.trade.page.pay
version=1.0
5.pojo包代码
AlipayBean
package com.edu.pojo;
import lombok.Data;
import lombok.experimental.Accessors;
@Data
@Accessors(chain = true)
public class AlipayBean {
private String out_trade_no; //商户订单号 必填
private String subject; //订单名称 必填
private StringBuffer total_amount; //付款金额 必填
private String body; //商品描述
private String timeout_express="30s"; //超时参数
private String product_code="FAST_INSTANT_TRADE_PAY";
private String scene="bar_code";
private String qr_code_timeout_express="2m";
//具体商品需要哪些参数，请结合实际开发需求，参考开发文档写pojo对象
}
ResponseBean
package com.edu.pojo;
import java.io.Serializable;
import lombok.Data;
import lombok.experimental.Accessors;
@Data
@Accessors(chain = true)
public class ResponseBean implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private String code; //网关返回码,
private String msg; //网关返回码描述
private String sign;
private String trade_no; //支付宝交易号
private String out_trade_no; //seller_id
private String seller_id;
private String total_amount;
private String merchant_order_no;
}
6.config包代码
PropertiesConfig
package com.edu.config;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import org.springframework.beans.factory.config.PropertiesFactoryBean;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.stereotype.Component;
@Component//读取支付配置文件
public class PropertiesConfig implements ApplicationListener{
//保存加载参数
private static Map<String, String> aliPropertiesMap = new HashMap<>();
//获取配置参数值
public static String getKey(String key) {
return aliPropertiesMap.get(key);
}
//监听启动完成，执行配置加载到aliPropertiesMap
public void onApplicationEvent(ApplicationEvent event) {
if(event instanceof ApplicationReadyEvent) {
this.init(aliPropertiesMap);//应用启动加载
}
}
//初始化加载aliPropertiesMap
public void init(Map<String, String> map) {
//获的PathMatchingResourcePatternResolver
PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
try{
//加载resource文件
Resource resouces = resolver.getResource("classpath:/alipay.properties");
PropertiesFactoryBean config = new PropertiesFactoryBean();
config.setLocation(resouces);
config.afterPropertiesSet();
Properties prop = config.getObject();
//遍历配置文件，将配置信息存入集合
for (String key : prop.stringPropertyNames()) {
map.put(key, (String)prop.get(key));
}
} catch (Exception e) {
new Exception("配置文件加载失败");
}
}
}
AlipayUtil
package com.edu.config;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.edu.pojo.AlipayBean;
public class AlipayUtil {
//建立与支付宝连接
public static String connect(AlipayBean bean) throws AlipayApiException {
//1.初始化AlipayClient
AlipayClient alipayClient = new DefaultAlipayClient(
PropertiesConfig.getKey("gatewayUrl"),//支付宝网关
PropertiesConfig.getKey("app_id"),//appid
PropertiesConfig.getKey("merchant_private_key"),//商户私钥
"json",
PropertiesConfig.getKey("charset"),//字符编码格式
PropertiesConfig.getKey("alipay_public_key"),//支付宝公钥
PropertiesConfig.getKey("sign_type")
); //签名方式
//2.设置请求参数.
//2、设置请求参数
AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
//页面跳转同步通知页面路径
alipayRequest.setReturnUrl(PropertiesConfig.getKey("return_url"));
// 服务器异步通知页面路径
alipayRequest.setNotifyUrl(PropertiesConfig.getKey("notify_url"));
//封装参数
String jsonString = JSON.toJSONString(bean, SerializerFeature.UseSingleQuotes);
System.out.println(jsonString);
alipayRequest.setBizContent(jsonString);
//3、请求支付宝进行付款，并获取支付结果
String result = alipayClient.pageExecute(alipayRequest).getBody();
//4.返回付款信息
return result;
}
}
7.controller
OrderController
package com.edu.controller;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.alipay.api.AlipayApiException;
import com.edu.pojo.AlipayBean;
import com.edu.service.PayService;
@Controller
public class OrderController {
@Resource
private PayService payService;
/*阿里支付*/
@RequestMapping(value = "/order/alipay")
@ResponseBody
public String alipay (AlipayBean alipayBean) throws AlipayApiException{
return payService.alipay(alipayBean);
}
/*异步通知*/
@RequestMapping("return")
public String notify(HttpServletRequest request,Model model) {
//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();
// 签名验证
for (Map.Entry<String, String[]> entry : requestParams.entrySet()) {
System.out.println("key= " + entry.getKey() + " and value= " + Arrays.toString(entry.getValue()));
}
//这里我只打印了支付宝返回的信息，你们可以根据自己业务作相因的改变，注意这个success是jsp页面，具体根据yml配置
return "success";
}
}
8.serviceI
package com.edu.service;
import com.alipay.api.AlipayApiException;
import com.edu.pojo.AlipayBean;
public interface PayService {
String alipay(AlipayBean alipayBean) throws AlipayApiException;
}
8.serviceImpl
package com.edu.service.impl;
import org.springframework.stereotype.Service;
import com.alipay.api.AlipayApiException;
import com.edu.config.AlipayUtil;
import com.edu.pojo.AlipayBean;
import com.edu.service.PayService;
@Service
public class PayServiceImpl implements PayService{
@Override
public String alipay(AlipayBean alipayBean) throws AlipayApiException {
return AlipayUtil.connect(alipayBean);
}
}
9.代码已经写完了，接下来进行测试，访问http://localhost:8888/index.jsp 注意，该jsp在wabapp文件夹下
至此，支付宝支付模块就已完成
