1.注册开发者中心应用 登录点击沙箱服务
/platform/developerIndex.htm
2.创建沙箱应用获取APPID和支付宝网关地址(创建设置密钥这里就不说明了)，将公共密钥和私密保存到本地。
3.创建项目结构，设置配置文件
1.下载支付宝SDK文件jar包，讲jar包导入到项目内
2.编写配置信息和Java文件
/********************************************************************************************************************************************************************************************/
* 应用启动加载文件*/
@Component
public class AlipayConfig implements ApplicationListener {
//保存加载配置参数
private static Map 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 map) {
// 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()) {
map.put(key, (String) prop.get(key));
}
} catch (Exception e) {
new Exception("配置文件加载失败");
}
}
}
/********************************************************************************************************************************************************************************************/
4.创建支付工具类
public class PayUtil {
/**
* @param outTradeNo 商户订单号，商户网站订单系统中唯一订单号，必填 对应缴费记录的orderNo
* @param totalAmount 付款金额，必填
* @param subject 主题
* @param body 商品描述，可空
* @return
*/
public static String alipay(AlipayBean alipayBean) {
//1、获得初始化的AlipayClient
AlipayClient alipayClient = new DefaultAlipayClient(
AlipayConfig.getKey("gatewayUrl"),//支付宝网关
AlipayConfig.getKey("app_id"),//appid
AlipayConfig.getKey("merchant_private_key"),//商户私钥
"json",
AlipayConfig.getKey("charset"),//字符编码格式
AlipayConfig.getKey("alipay_public_key"),//支付宝公钥
AlipayConfig.getKey("sign_type")//签名方式
);
//设置请求参数
AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
alipayRequest.setReturnUrl(AlipayConfig.getKey("return_url"));
alipayRequest.setNotifyUrl(AlipayConfig.getKey("notify_url"));
try {
alipayRequest.setBizContent(JSON.toJSONString(alipayBean));
//请求
String result = alipayClient.pageExecute(alipayRequest).getBody();
System.out.println("*********************\n返回结果为：" + result);
return result;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
/**
* 支付宝退款接口
*
* @param outTradeNo
* @param tradeNo
* @param refundAmount
* @param refundReason
* @param out_request_no 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
* @return
*/
public static String aliRefund(AlipayBean alipayBean) {
//1、获得初始化的AlipayClient
AlipayClient alipayClient = new DefaultAlipayClient(
AlipayConfig.getKey("gatewayUrl"),//支付宝网关
AlipayConfig.getKey("app_id"),//appid
AlipayConfig.getKey("merchant_private_key"),//商户私钥
"json",
AlipayConfig.getKey("charset"),//字符编码格式
AlipayConfig.getKey("alipay_public_key"),//支付宝公钥
AlipayConfig.getKey("sign_type")//签名方式
);
//设置请求参数
AlipayTradeRefundRequest alipayRequest = new AlipayTradeRefundRequest();
alipayRequest.setReturnUrl(AlipayConfig.getKey("return_url"));
alipayRequest.setNotifyUrl(AlipayConfig.getKey("notify_url"));
try {
alipayRequest.setBizContent(JSON.toJSONString(alipayBean));
//请求
String result= alipayClient.execute(alipayRequest).getBody();
System.out.println("*********************\n返回结果为：" + result);
return result;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
/**
* 支付宝的验签方法
*
* @param req
* @return
*/
public static boolean checkSign(HttpServletRequest req) {
Map requestMap = req.getParameterMap();
Map paramsMap = new HashMap<>();
requestMap.forEach((key, values) -> {
String strs = "";
for (String value : values) {
strs = strs + value;
}
System.out.println(("key值为" + key + "value为：" + strs));
paramsMap.put(key, strs);
});
//调用SDK验证签名
try {
return AlipaySignature.rsaCheckV1(paramsMap, AlipayConfig.getKey("alipay_public_key"), AlipayConfig.getKey("charset"), AlipayConfig.getKey("sign_type"));
} catch (AlipayApiException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("*********************验签失败********************");
return false;
}
}
5.创建Controller，dao和service
6.创建测试html，运行项目访问测试。
over......
