基于SDK的支付接口服务端——支付宝，微信

资源下载： 微信sdk:http://download.csdn.net/download/qq_29423883/9958549 支付宝sdk:http://download.csdn.net/download/qq_29423883/9958617 支付宝签名工具：http://download.csdn.net/download/qq_29423883/9958652

支付宝

准备：

1.创建应用，配置密钥（详见https://docs.open.alipay.com/291/105971）； 2.jar包：alipay-sdk-java20170818173712.jar；commons-logging-1.1.1.jar

3.配置信息：appid；应用私钥；支付宝公钥（是支付宝公钥不是应用公钥）； 4.基本步骤： (1)获得初始化的AlipayClient (2)创建API对应的request类 (3)设置业务参数 (4)通过alipayClient调用API，获得对应的response类 (5)根据response中的结果继续业务逻辑处理

官方示例

//1.交易查询 AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2"); //获得初始化的AlipayClient AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();//创建API对应的request类 request.setBizContent("{" + " \"out_trade_no\":\"20150320010101001\"," + " \"trade_no\":\"2014112611001004680073956707\"" + " }");//设置业务参数 AlipayTradeQueryResponse response = alipayClient.execute(request);//通过alipayClient调用API，获得对应的response类 System.out.print(response.getBody()); //根据response中的结果继续业务逻辑处理

再具体一点的示例

//创建支付宝配置类 public class AlipayConfig { public static String APP_ID_USER = "XXX"; //应用私钥 public static String PRIVATE_KEY = "XXX"; //支付宝公钥 public static String ALIPAY_PUBLIC_KEY = "XXX"; public static String CHARSET = "utf-8"; public static String URL = "https://openapi.alipay.com/gateway.do"; public static String FORMAT = "json"; public static String SIGN_TYPE = "RSA2"; } //申请退款 public String refundRequest( String tradeNo, int refundMoney) { String TimeMillis=String.valueOf(System.currentTimeMillis()); String responseStr = "退款失败"; AlipayClient alipayClient = new DefaultAlipayClient(URL, APP_ID_LAWYER, PRIVATE_KEY, FORMAT, CHARSET, ALIPAY_PUBLIC_KEY, SIGN_TYPE); double money = refundMoney; money = money / 100;//单位是元 AlipayTradeRefundRequest request = new AlipayTradeRefundRequest(); request.setBizContent("{" + "\"trade_no\":\"" + tradeNo + "\"," + "\"out_request_no\":\"" + tradeNo + "\"," + "\"refund_amount\":" + money + "" + " }"); AlipayTradeRefundResponse response; try { response = alipayClient.execute(request); if (response.isSuccess()) { responseStr = "退款成功"; } else if(response != null){ responseStr = response.getSubMsg(); } } catch (AlipayApiException e) { responseStr = "系统异常"; } return responseStr; }

沙箱环境

//沙箱环境 public static String APP_ID_TEST = "2016081900288218"; // 应用的私钥 public static String PRIVATE_KEY_TEST = "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"; // 支付宝公钥 public static String PUBLIC_KEY_TEST ="MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA+GwZr2R5vuB4jhEnuecB5GMiQY2dJ6q3os7PWE/4GREbXCca7ByWlF8g87bc43iMRXruDkxLpL50AKK0ZPkBW33i5KdzAhdET5MECIr1mM3H+uG0J9MkEFwuATCyy0RjJ9r0sdrx/hpv4YgPutggLB9SxTfJr2Jo5hIgaVejyznf1FlbvGWM7gWdXv8oYWo0h+vK79vLRD3kTvVpuYdKoPAtE4UuRqwnYDUt9QujauXhKOKHQs8SRA0ngWVTVFA8O6C1eJMvP7U0zvrKHyktLekpRjN/JZEHOLuqBP9DzJgL1Nqcv045h2/b58PYsjutYSYfFwSDfcpKpEPVwZhDswIDAQAB"; // 字符编码格式 目前支持 gbk 或 utf-8 public static String CHARSET_TEST = "utf-8"; //退款接口url public static String URL_TEST = "https://openapi.alipaydev.com/gateway.do"; public static String FORMAT_TEST="json"; // 签名方式 public static String SIGN_TYPE_TEST = "RSA2";

微信

准备 1.创建应用，配置秘钥 2.安装

<dependency> <groupId>com.github.wxpay</groupId> <artifactId>wxpay-sdk</artifactId> <version>0.0.3</version> </dependency>

3.需要的资源 appid 商户号 [微信支付分配的商户号] 商户平台设置的密钥key 商户证书 [pkcs12格式(apiclient_cert.p12);微信商户平台(pay.weixin.qq.com)–>账户中心–>账户设置–>API安全–>证书下载 ] 4.基本步骤 （1）创建配置类 （2）放入参数 （3）调用接口 （4）根据响应处理业务 官方示例：

//微信支付配置类 import com.github.wxpay.sdk.WXPayConfig; import java.io.ByteArrayInputStream; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; public class WXPayConfigImpl implements WXPayConfig { private String appId = "xxx"; private String mchId = "xxx";//商户号 private String key = "xxx";//密钥key private byte[] certData; private static WXPayConfigImpl INSTANCE; private WXPayConfigImpl() throws Exception{ String certPath = "src/resources/apiclient_cert.p12";//证书位置 File file = new File(certPath); InputStream certStream = new FileInputStream(file); this.certData = new byte[(int) file.length()]; certStream.read(this.certData); certStream.close(); } public static WXPayConfigImpl getInstance() throws Exception{ if (INSTANCE == null) { synchronized (WXPayConfigImpl.class) { if (INSTANCE == null) { INSTANCE = new WXPayConfigImpl(); } } } return INSTANCE; } public String getAppID() { return appId; } public String getMchID() { return mchId; } public String getKey() { return key; } public InputStream getCertStream() { ByteArrayInputStream certBis; certBis = new ByteArrayInputStream(this.certData); return certBis; } public int getHttpConnectTimeoutMs() { return 2000; } public int getHttpReadTimeoutMs() { return 10000; } } //支付测试类；包括下单操作，退款操作，对账单下载 import com.github.wxpay.sdk.WXPay; import com.github.wxpay.sdk.WXPayUtil; import java.util.HashMap; import java.util.Map; public class TestWXPay { private WXPay wxpay; private WXPayConfigImpl config; private String out_trade_no; private String total_fee; public TestWXPay() throws Exception { config = WXPayConfigImpl.getInstance(); wxpay = new WXPay(config); total_fee = "1"; // out_trade_no = "201701017496748980290321"; out_trade_no = "201613091059590000003433-asd002"; } /** * 扫码支付 下单 */ public void doUnifiedOrder() { HashMap<String, String> data = new HashMap<String, String>(); data.put("body", "腾讯充值中心-QQ会员充值"); data.put("out_trade_no", out_trade_no); data.put("device_info", ""); data.put("fee_type", "CNY"); data.put("total_fee", "1"); data.put("spbill_create_ip", "123.12.12.123"); data.put("notify_url", "http://test.letiantian.me/wxpay/notify"); data.put("trade_type", "NATIVE"); data.put("product_id", "12"); // data.put("time_expire", "20170112104120"); try { Map<String, String> r = wxpay.unifiedOrder(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } public void doOrderClose() { System.out.println("关闭订单"); HashMap<String, String> data = new HashMap<String, String>(); data.put("out_trade_no", out_trade_no); try { Map<String, String> r = wxpay.closeOrder(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } public void doOrderQuery() { System.out.println("查询订单"); HashMap<String, String> data = new HashMap<String, String>(); data.put("out_trade_no", out_trade_no); // data.put("transaction_id", "4008852001201608221962061594"); try { Map<String, String> r = wxpay.orderQuery(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } public void doOrderReverse() { System.out.println("撤销"); HashMap<String, String> data = new HashMap<String, String>(); data.put("out_trade_no", out_trade_no); // data.put("transaction_id", "4008852001201608221962061594"); try { Map<String, String> r = wxpay.reverse(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } /** * 长链接转短链接 * 测试成功 */ public void doShortUrl() { String long_url = "weixin://wxpay/bizpayurl?pr=etxB4DY"; HashMap<String, String> data = new HashMap<String, String>(); data.put("long_url", long_url); try { Map<String, String> r = wxpay.shortUrl(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } /** * 退款 * 已测试 */ public void doRefund() { HashMap<String, String> data = new HashMap<String, String>(); data.put("out_trade_no", out_trade_no); data.put("out_refund_no", out_trade_no); data.put("total_fee", total_fee); data.put("refund_fee", total_fee); data.put("refund_fee_type", "CNY"); data.put("op_user_id", config.getMchID()); try { Map<String, String> r = wxpay.refund(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } /** * 查询退款 * 已经测试 */ public void doRefundQuery() { HashMap<String, String> data = new HashMap<String, String>(); data.put("out_refund_no", out_trade_no); try { Map<String, String> r = wxpay.refundQuery(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } /** * 对账单下载 * 已测试 */ public void doDownloadBill() { HashMap<String, String> data = new HashMap<String, String>(); data.put("bill_date", "20161102"); data.put("bill_type", "ALL"); try { Map<String, String> r = wxpay.downloadBill(data); System.out.println(r); } catch (Exception e) { e.printStackTrace(); } } public void doGetSandboxSignKey() throws Exception { WXPayConfigImpl config = WXPayConfigImpl.getInstance(); HashMap<String, String> data = new HashMap<String, String>(); data.put("mch_id", config.getMchID()); data.put("nonce_str", WXPayUtil.generateNonceStr()); String sign = WXPayUtil.generateSignature(data, config.getKey()); data.put("sign", sign); WXPay wxPay = new WXPay(config); String result = wxPay.requestWithoutCert("https://api.mch.weixin.qq.com/sandbox/pay/getsignkey", data, 10000, 10000); System.out.println(result); } public static void main(String[] args) throws Exception { TestWXPay dodo = new TestWXPay(); dodo.doOrderQuery(); dodo.doOrderReverse(); dodo.doOrderQuery(); dodo.doOrderReverse(); dodo.doOrderQuery(); } }

开发示例

/**金额单位：分 */ public String refundRequest(String tradeNo, int refundMoney, int totalMoney) { String responseStr = "退款失败"; try { WXPayConfigImpl config = WXPayConfigImpl.getInstance(); WXPay wxpay = new WXPay(config); HashMap<String, String> data = new HashMap<>(); data.put("transaction_id",""+ tradeNo+""); data.put("out_refund_no",""+ TimeMillis+""); data.put("total_fee",""+totalMoney+""); data.put("refund_fee",""+refundMoney+""); data.put("refund_fee_type", "CNY"); data.put("mch_id", config.getMchID()); Map<String, String> r = wxpay.refund(data); String err_code_des = r.get("err_code_des"); if(err_code_des == null) { responseStr ="退款成功"; } else { responseStr = err_code_des; } } catch (Exception e) { responseStr = "系统异常"; } return responseStr; }

沙箱环境 微信支付api的链接，如：被扫支付官网的url为：https://api.mch.weixin.qq.com/pay/micropay增加sandbox路径，变更为https://api.mch.weixin.qq.com/sandbox/pay/micropay