Java第三方支付接入案例(支付宝)
2019-11-30

开源项目链接

Kitty 开源权限管理系统

项目地址:https://gitee.com/liuge1988/kitty

演示地址:http://139.196.87.48:9002/kitty

用户名:admin 密码:admin

注册沙箱账号

到蚂蚁金服注册开发者账号,注册地址:https://open.alipay.com,用你的 支付宝 账号扫码登录,完善个人信息,选择服务类型。

 

根据情况选择接入方式,我们这里选择自研开发者,如果已经注册过的省略。

选择 开发者中心 --> 研发服务 --> 沙箱,进入沙箱管理界面。

 

进入沙箱,第一次需要填写信息,记下appId,公钥设置处需要把下面步骤生成的公钥设置到这里。

生成公私秘钥

登录官方地址: https://docs.open.alipay.com/291/105971,进入秘钥生成页面。

 

 

打开下载的工具,运行程序,选择 JAVA 2048 方式,点击生成秘钥。

把此处生成的公钥复制设置到沙箱环境,就是上面的设置公钥配置,然后把公私秘钥保存起来,以备后用。

创建项目

登录 https://start.spring.io/,输入项目信息,生成 Spring Boot 项目并下载到本地。

 

使用开发工具导入项目,我们这里使用的是 Eclipse ,导入和清理后项目结构如下图。

添加依赖

添加项目依赖,主要是引入 alipay-sdk-java,提供支付宝支付支持。

pom.xml

<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.1.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.louis</groupId> <artifactId>epay-service</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>epay-service</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- alipay --> <dependency> <groupId>com.alipay.sdk</groupId> <artifactId>alipay-sdk-java</artifactId> <version>3.1.0</version> </dependency> <!-- fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.48</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build></project>

配置文件

在 resources 目录下添加一个 alipay.properties 文件,用于写入支付宝配置信息。

alipay.properties

# 应用ID,您的APPID,收款账号既是您的APPID对应支付宝账号appId: 2016092300579321# 商户私钥,您的PKCS8格式RSA2私钥privateKey: 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# 支付宝公钥,查看地址:https://openhome.com/platform/keyManage.htm 对应APPID下的支付宝公钥。publicKey: MIIBIjANBnbqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApEW1RBR8T5Je+eIcM+MPYq2gOth9/xo2ekcB2vvCwctpjToPPSGqHQFHffaI2BA4J1cYPFPUYVxeAjrJukPgD8u2KQqbuRib+l/RyWC14n8sXOYH6+PAnUeiUA8dkef2qjK6NA3evUdxzrmY+a3LaVR7O4CL7Ep+T1edzgjoCxFs27XGNwyi5Acnr5qF1XZwQx0WSqr9R+jfIvN2MzUVcen69yB2RoiMVW7hB1J+Yk9RQQK0Fbhy5IuSWjOp8FkCAtmtE9mKJKdZI6oRaDadPLIA2Z5RLUD/Uo6HkDK1jtJhSOyW96KDC6icDbHc8tAcKJ4dM365bT8M2HLNnfb07QIDAQAB# 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 notifyUrl: http://外网ip:端口/error.html# 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 returnUrl: http://外网ip:端口/sccess.html# 签名方式signType: RSA2# 字符编码格式charset: utf-8# 支付宝网关gatewayUrl: https://openapi.alipaydev.com/gateway.do# 支付宝网关logPath: "C:\"

增加一个 PropertiesListener 监听器用于在应用启动时加载配置文件属性。

PropertiesListener.java

package com.louis.epay.config;import org.springframework.boot.context.event.ApplicationStartedEvent;import org.springframework.context.ApplicationListener;import org.springframework.stereotype.Component;import com.louis.epay.alipay.AlipayProperties;/** * 配置文件监听器,用来加载自定义配置文件 * @author Louis * @date Dec 12, 2018 */@Componentpublic class PropertiesListener implements ApplicationListener<ApplicationStartedEvent> { @Override public void onApplicationEvent(ApplicationStartedEvent event) { AlipayProperties.loadProperties(); }}

上面的监听器加载属性,是通过具体的属性加载器加载的,比如支付宝支付属性加载类如下。

AlipayProperties.java

package com.louis.epay.alipay;import java.util.HashMap;import java.util.Map;import java.util.Properties;import org.springframework.beans.factory.config.PropertiesFactoryBean;import org.springframework.core.io.Resource;import org.springframework.core.io.support.PathMatchingResourcePatternResolver;import org.springframework.stereotype.Component;/** * 应用启动加载文件 * @author Louis * @date Dec 12, 2018 */@Componentpublic class AlipayProperties { public static final String APP_ID = "appId"; public static final String PRIVARY_KEY = "privateKey"; public static final String PUBLIC_KEY = "publicKey"; public static final String NOTIFY_URL = "notifyUrl"; public static final String RETURN_URL = "returnUrl"; public static final String SIGN_TYPE = "signType"; public static final String CHARSET = "charset"; public static final String GATEWAY_URL = "gatewayUrl"; public static final String LOG_PATH = "logPath"; /** * 保存加载配置参数 */ private static Map<String, String> propertiesMap = new HashMap<String, String>(); /** * 加载属性 */ public static void loadProperties() { // 获得PathMatchingResourcePatternResolver对象 PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(); try { // 加载resource文件(也可以加载resources) Resource resources = resolver.getResource("classpath:alipay.properties"); PropertiesFactoryBean config = new PropertiesFactoryBean(); config.setLocation(resources); config.afterPropertiesSet(); Properties prop = config.getObject(); // 循环遍历所有得键值对并且存入集合 for (String key : prop.stringPropertyNames()) { propertiesMap.put(key, (String) prop.get(key)); } } catch (Exception e) { new Exception("配置文件加载失败"); } } /** * 获取配置参数值 * @param key * @return */ public static String getKey(String key) { return propertiesMap.get(key); } public static String getAppId() { return propertiesMap.get(APP_ID); } public static String getPrivateKey() { return propertiesMap.get(PRIVARY_KEY); } public static String getPublicKey() { return propertiesMap.get(PUBLIC_KEY); } public static String getNotifyUrl() { return propertiesMap.get(NOTIFY_URL); } public static String getReturnUrl() { return propertiesMap.get(RETURN_URL); } public static String getSignType() { return propertiesMap.get(SIGN_TYPE); } public static String getCharset() { return propertiesMap.get(CHARSET); } public static String getGatewayUrl() { return propertiesMap.get(GATEWAY_URL); } public static String getLogPath() { return propertiesMap.get(LOG_PATH); } }

支付宝支付接口封装

Alipay 是对支付宝支付功能的封装,它接收一个 AlipayBean 为参数,最终通过调用 AlipayClient 的 pageExecute 方法返回支付页面。

Alipay.java

package com.louis.epay.alipay;import org.springframework.stereotype.Component;import com.alibaba.fastjson.JSON;import com.alipay.api.AlipayApiException;import com.alipay.api.AlipayClient;import com.alipay.api.DefaultAlipayClient;import com.alipay.api.request.AlipayTradePagePayRequest;/** * 支付宝支付接口 * @author Louis * @date Dec 12, 2018 */@Componentpublic class Alipay { /** * 支付接口 * @param alipayBean * @return * @throws AlipayApiException */ public String pay(AlipayBean alipayBean) throws AlipayApiException { // 1、获得初始化的AlipayClient String serverUrl = AlipayProperties.getGatewayUrl(); String appId = AlipayProperties.getAppId(); String privateKey = AlipayProperties.getPrivateKey(); String format = "json"; String charset = AlipayProperties.getCharset(); String alipayPublicKey = AlipayProperties.getPublicKey(); String signType = AlipayProperties.getSignType(); String returnUrl = AlipayProperties.getReturnUrl(); String notifyUrl = AlipayProperties.getNotifyUrl(); AlipayClient alipayClient = new DefaultAlipayClient(serverUrl, appId, privateKey, format, charset, alipayPublicKey, signType); // 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(returnUrl); // 服务器异步通知页面路径 alipayRequest.setNotifyUrl(notifyUrl); // 封装参数 alipayRequest.setBizContent(JSON.toJSONString(alipayBean)); // 3、请求支付宝进行付款,并获取支付结果 String result = alipayClient.pageExecute(alipayRequest).getBody(); // 返回付款信息 return result; }}

接口调用参数封装对象如下。

AlipayBean.java

package com.louis.epay.alipay;/** * 支付实体对象 * 根据支付宝接口协议,其中的属性名,必须使用下划线,不能修改 * @author Louis * @date Dec 12, 2018 */public class AlipayBean { /** * 商户订单号,必填 * */ private String out_trade_no; /** * 订单名称,必填 */ private String subject; /** * 付款金额,必填 * 根据支付宝接口协议,必须使用下划线 */ private String total_amount; /** * 商品描述,可空 */ private String body; /** * 超时时间参数 */ private String timeout_express= "10m"; /** * 产品编号 */ private String product_code= "FAST_INSTANT_TRADE_PAY"; public String getOut_trade_no() { return out_trade_no; } public void setOut_trade_no(String out_trade_no) { this.out_trade_no = out_trade_no; } public String getSubject() { return subject; } public void setSubject(String subject) { this.subject = subject; } public String getTotal_amount() { return total_amount; } public void setTotal_amount(String total_amount) { this.total_amount = total_amount; } public String getBody() { return body; } public void setBody(String body) { this.body = body; } public String getTimeout_express() { return timeout_express; } public void setTimeout_express(String timeout_express) { this.timeout_express = timeout_express; } public String getProduct_code() { return product_code; } public void setProduct_code(String product_code) { this.product_code = product_code; }}

订单业务封装

订单业务提供支付宝支付接口 alipay,内部通过调用 PayService 完成订单支付。

OrderController.java

package com.louis.epay.controller;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import com.alipay.api.AlipayApiException;import com.louis.epay.alipay.AlipayBean;import com.louis.epay.service.PayService;/** * 订单接口 * * @author Louis * @date Dec 12, 2018 */@RestController()@RequestMapping("order")public class OrderController { @Autowired private PayService payService; /** * 阿里支付 * @param tradeNo * @param subject * @param amount * @param body * @return * @throws AlipayApiException */ @PostMapping(value = "alipay") public String alipay(String outTradeNo, String subject, String totalAmount, String body) throws AlipayApiException { AlipayBean alipayBean = new AlipayBean(); alipayBean.setOut_trade_no(outTradeNo); alipayBean.setSubject(subject); alipayBean.setTotal_amount(totalAmount); alipayBean.setBody(body); return payService.aliPay(alipayBean); }}

PayService 封装了 Alipay, 统一对外提供的支付服务接口。

PayService.java 

package com.louis.epay.service;import com.alipay.api.AlipayApiException;import com.louis.epay.alipay.AlipayBean;/** * 支付服务 * @author Louis * @date Dec 12, 2018 */public interface PayService { /** * 支付宝支付接口 * @param alipayBean * @return * @throws AlipayApiException */ String aliPay(AlipayBean alipayBean) throws AlipayApiException;}

支付服务的实现类,通过对各种支付代码的调用,统一对外提供支付服务。

PayServiceImpl.java

package com.louis.epay.service.impl;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import com.alipay.api.AlipayApiException;import com.louis.epay.alipay.Alipay;import com.louis.epay.alipay.AlipayBean;import com.louis.epay.service.PayService;@Servicepublic class PayServiceImpl implements PayService { @Autowired private Alipay alipay; @Override public String aliPay(AlipayBean alipayBean) throws AlipayApiException { return alipay.pay(alipayBean); }}

启动类没什么,有启动器注解就可以了。

EpayApplication.java

package com.louis.epay;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class EpayApplication { public static void main(String[] args) { SpringApplication.run(EpayApplication.class, args); }}

测试页面

在 static 目录下创建一个 index.html 页面,用于输入订单信息,并进行支付。

index.html

<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <title>Title</title></head><body><H1>支付测试</H1><hr><div class="form-container"> <form id="form" action="order/alipay" method="post">   *商户订单 :    <input type="text" name="outTradeNo" value="dzcp100010001"><br>   *订单名称 :    <input type="text" name="subject" value="红魔手机"><br>   *付款金额 :    <input type="text" name="totalAmount" value="0.1" ><br>   *商品描述 :    <input type="text" name="body" value="红魔手机 努比亚出品游戏手机"><br>    <input type="button" value="支付宝支付" onclick="submitForm("order/alipay")">    <input type="button" value=" 微信支付 " onclick="submitForm("order/wexpay")"> </form></div></body><script language="javascript">function submitForm(action) { document.getElementById("form").action = action document.getElementById("form").submit()}</script><style>.form-container { padding-top:10px;}input { margin:10px; }</style></html>

测试效果

根据需要修改启动端口,我这里调整为 9000。

application.yml

server: port: 9000

访问地址: http://localhost:9000/,显示订单支付页面。

点击支付宝支付,调用 order/alipay 接口,如果调用成功,则返回支付宝支付页面。

到此,支付宝支付的实现案例就完成了。

 

源码下载

码云:https://gitee.com/liuge1988/epay.git


作者:朝雨忆轻尘出处:https://www.cnblogs.com/xifengxiaoma/ 版权所有,欢迎转载,转载请注明原文作者及出处。