Java spring boot 实现支付宝支付功能的示例代码
一、准备工作:
1、登陆支付宝开发者中心,申请一个开发者账号。
地址:https://openhome.alipay.com/
2、进入研发服务:
3、点击链接进入工具下载页面:
4、点击下载对应版本的RSA公钥生成器:
5、生成公钥密钥(记录你的应用私钥):
6、在支付宝配置公钥(点击保存):
二、搭建demo
1、引入jia包:
<dependency> <groupId>com.alipay.sdk</groupId> <artifactId>alipay-sdk-java</artifactId> <version>4.9.9</version> </dependency>
2、搭建工程,目录结构如下:
3、编写alipay.properties配置文件
# 您的APPID appId = 2016102200738709 # 商户私钥 privateKey = 您的商户私钥 # 支付宝公钥 publicKey = 您的支付宝公钥 # 服务器异步通知页面路径 ,需要公网能访问到。 notifyUrl = http://公网能访问的路径 # 页面跳转同步通知页面路径 需要公网能访问到。 returnUrl = http://公网能访问的路径 # 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:\\"
4、编写AlipayBean:
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"; /** * 省略get set 方法 */ }
5、编写Alipay:
/** * 支付宝支付接口 */ @Component public 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; } }
6、编写AlipayProperties:
/** * 应用启动加载文件 */ @Component public 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:你的alipay.properties文件路径"); 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); } }
7、编写PropertiesListener:
/** * 配置文件监听器,用来加载自定义配置文件 */ @Component public class PropertiesListener implements ApplicationListener<ApplicationStartedEvent> { @Override public void onApplicationEvent(ApplicationStartedEvent event) { AlipayProperties.loadProperties(); } }
8、编写PayService:
/** * 支付服务 */ public interface PayService { /** * 支付宝支付接口 * @param alipayBean * @return * @throws AlipayApiException */ String aliPay(AlipayBean alipayBean) throws AlipayApiException; }
9、编写PayServiceImpl:
@Service public class PayServiceImpl implements PayService { @Autowired private Alipay alipay; @Override public String aliPay(AlipayBean alipayBean) throws AlipayApiException { return alipay.pay(alipayBean); } }
10、编写OrderController:
/** * 订单接口 * * @author Louis * @date Dec 12, 2018 */ @RestController() @RequestMapping("order") public class OrderController { @Autowired private PayService payService; @RequestMapping(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); } //支付成功支付宝调用方法: @RequestMapping(value = "ok") public void ok(){ System.out.println("付款成功!"); } }
11、访问页面,输入信息进入支付页面:
12、点击支付宝支付,页面跳转,成功!
总结
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