Online payment SDK - JAVA

Description

This guide is written for application developers who want to integrate the PayBy payment solution.

SDK Download

Pre-Condition

JDK

Versions ≥ 1.8 are required.

Executing validation commands on the command line java -version, return similar content:

java version "1.8.0_191"

Java(TM) SE Runtime Environment (build 1.8.0_191-b12)

Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)

Maven

Versions ≥ 3.0 are required.

Executing validation commands on the command line mvn –versionreturn similar content:

Apache Maven 3.6.0 (97c98ec64a1fdfee7767ce5ffb20918da4f719f3; 2018-10-25T02:41:47+08:00)

Maven home: D:\apache-maven-3.6.0\bin\..

Java version: 1.8.0_191, vendor: Oracle Corporation, runtime: C:\Program Files\Java\jdk1.8.0_191\jre

Default locale: zh_CN, platform encoding: GBK

OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"

Import maven repository

Import local library or remote library, choose by yourself according to the user's R & D environment.

Download dependency

git clone https://github.com/PayBy/PayBy-java.git

Open download directory: PayBy-java/dependency

Install local repository

Move to the ‘PayBy-java/dependency’ subdirectory.

mvn install:install-file -Dfile=payby-openapi-1.0.17.jar -DpomFile=payby-openapi-1.0.17.pom
mvn install:install-file -Dfile=payby-sdk-1.3.21.jar -DpomFile=payby-sdk-1.3.21.pom

Deploy remote repository

mvn deploy:deploy-file -Durl=company maven repository url path -DrepositoryId=repository name -Dfile=payby-openapi-1.0.17.jar -DpomFile=payby-openapi-1.0.17.pom
mvn deploy:deploy-file -Durl=company maven repository url path -DrepositoryId=repository name -Dfile=payby-sdk-1.3.21.jar -DpomFile=payby-sdk-1.3.21.pom

Project import maven dependency

<dependency>
    <groupId>com.payby.gateway</groupId>
    <artifactId>payby-sdk</artifactId>
    <version>1.3.21</version>
 </dependency>

SDK cascade depends on specific content

The specific content varies according to the actual version executed at the project root.

mvn dependency:tree

Get results:

com.payby.gateway:payby-sdk:jar:1.3.21
 +- com.payby.gateway:payby-openapi:jar:1.0.17:compile
 +- commons-io:commons-io:jar:2.4:compile
 +- commons-codec:commons-codec:jar:1.13:compile
 +- org.projectlombok:lombok:jar:1.18.8:provided
 +- org.bouncycastle:bcprov-jdk15on:jar:1.64:compile
 +- org.bouncycastle:bcpkix-jdk15on:jar:1.64:compile
 +- com.alibaba:fastjson:jar:1.2.58:compile
 +- org.slf4j:slf4j-api:jar:1.7.26:compile
 +- org.apache.commons:commons-lang3:jar:3.9:compile
 +- com.squareup.okhttp3:okhttp:jar:3.11.0:compile
 |  \- com.squareup.okio:okio:jar:1.14.0:compile
 +- org.apache.httpcomponents:httpclient:jar:4.5.6:compile
 +- org.apache.httpcomponents:httpcore:jar:4.4.10:compile
 |  \- commons-logging:commons-logging:jar:1.2:compile
 +- com.madgag.spongycastle:bcpkix-jdk15on:jar:1.58.0.0:compile
 |  +- com.madgag.spongycastle:core:jar:1.58.0.0:compile
 |  \- com.madgag.spongycastle:prov:jar:1.58.0.0:compile
 |     \- junit:junit:jar:4.12:compile
 |        \- org.hamcrest:hamcrest-core:jar:1.3:compile
 +- ch.qos.logback:logback-classic:jar:1.2.3:compile
 |  \- ch.qos.logback:logback-core:jar:1.2.3:compile
 \- com.squareup.okhttp3:logging-interceptor:jar:3.11.0:compile

Bouncycastle version special description

Because many versions of Bouncycastle Library, The version we use:

<dependency>
    <groupId>org.bouncycastle</groupId>
    <artifactId>bcprov-jdk15on</artifactId>
    <version>1.64</version>
    <scope>compile</scope>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>org.bouncycastle</groupId>
    <artifactId>bcpkix-jdk15on</artifactId>
    <version>1.64</version>
    <scope>compile</scope>
    <optional>true</optional>
</dependency>

Users can switch to other equivalent Maven library dependencies according to the actual situation.

Using view query provided by mvn dependency.

The host project uses the BC dependency. If there is a conflict, you can consider using the Maven exclude method to remove the old version.

Digital signature

Preparing keys

Recommended operation for private key generation

### Generate private key
# PayBy_key.pem Private key file name
# 2048 Private key size, at least 2048
openssl genrsa -out PayBy_key.pem 2048

### Export public key
# PayBy_key.pem Private key generated in the previous step # PayBy_key_public.pem Exported public key name
openssl rsa -in PayBy_key.pem -out PayBy_key_public.pem -pubout

### Export private key for Java
# PayBy_key.pem Private key generated in the 1st step
# PayBy_key_Private.pem
openssl pkcs8 -in PayBy_key.pem -topk8 -nocrypt -out PayBy_key_private.pem

Signature algorithm

Using SHA256WithRSA for signature algorithm. The merchant itself issues the private key.
Original signature rule: Requesting the original content of the body.
Using UTF-8 to encode the original content.
Using Base64 to encode the resulting signature.

Encryption Algorithm

The encryption algorithm uses RSA public-key encryption, and PayBy issues the public key.
The encrypted field should not be too large, generally more than 200 bytes.
Encryption rules: RSA (encrypted original encryption).
UTF-8 encoding is used for plaintext.
The encryption result is encoded with Base64.

Verify Signature Algorithm

Using SHA256WithRSA to verify the signature algorithm. The RSA public key is downloaded from the PayBy merchant console.
Using Base64 to decode the signature, i.e., decoded_sign_data.
Using UTF-8 to decode the original content, i.e. decoded_content_data.
Verify signature using parameters as listed (rsa_public_key, decoded_sign_data, decoded_content_data).

API Description

Function Description

1. PayByClient

public static PayByClient getPayByClient()
    throws InvalidKeySpecException, SignatureException, InvalidKeyException, IOException, URISyntaxException {
    ApiConfig apiConfig = new ApiConfig();
    // setting interface url
    apiConfig.setDomain("https://uat.test2pay.com/sgs/api");

    // setting pkcs8 privateKey path
    String merchantPrivateKey = new String(Files.readAllBytes(
        Paths.get(PayByDemo.class.getClassLoader().getResource("merchant_demo_private.pem").toURI())));

    // setting publicKey path
    String payByPubKey = new String(Files
        .readAllBytes(Paths.get(PayByDemo.class.getClassLoader().getResource("payby_public_key.pem").toURI())));

    apiConfig.setCert(new KeyCert(merchantPrivateKey, payByPubKey));

    // setting http header params
    apiConfig.setFixHeaders(getFixHeaders());

    HttpLoggingInterceptor logInterceptor = new HttpLoggingInterceptor();
    logInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);

    ClientConfig config =
        new OkHttpClientConfig.Builder().interceptor(new OkHttpClientConfig.SignInterceptor(apiConfig.getCert()))
            .interceptor(logInterceptor).apiConfig(apiConfig).build();

    PayByClient client = new PayByClient(config);
    return client;

}

public static List<Pair<String, String>> getFixHeaders() {
    List<Pair<String, String>> pairs = new ArrayList<>();
    // setting Partner-Id
    pairs.add(new ImmutablePair<>("partner-id", "200000042607"));
    // setting group-name Optional
    pairs.add(new ImmutablePair<>("group-name", ""));
    // setting branch-name Optional
    pairs.add(new ImmutablePair<>("branch-name", ""));
    return pairs;
}

2. Order creation

    PayByClient client = getPayByClient();

    PlaceOrderRequest placeOrderRequest = new PlaceOrderRequest();
    // Merchant order number Required
    placeOrderRequest.setMerchantOrderNo("M202005120001");
    // Product name Required
    placeOrderRequest.setSubject("ipad");
    // Order totalAmount Required
    ExternalMoney totalAmount = new ExternalMoney(new BigDecimal("0.1"), "AED");
    placeOrderRequest.setTotalAmount(totalAmount);
    // Payment scenario code Required
    placeOrderRequest.setPaySceneCode("DYNQR");
    // Notification URL Optional
    placeOrderRequest.setNotifyUrl("http://yoursite.com/api/notification");
    // Accessory content Optional
    AccessoryContent accessoryContent = new AccessoryContent();
    // Amount detail Optional
    AmountDetail amountDetail = new AmountDetail();
    // Vat amount Optional
    amountDetail.setVatAmount(new ExternalMoney(new BigDecimal("0.1"), "AED"));
    // Goods detail Optional
    GoodsDetail goodsDetail = new GoodsDetail();
    goodsDetail.setBody("gifts");
    goodsDetail.setGoodsName("candy flower");
    goodsDetail.setGoodsId("GI1005");
    // Terminal detail Optional
    TerminalDetail terminalDetail = new TerminalDetail();
    terminalDetail.setMerchantName("candy home");
    accessoryContent.setAmountDetail(amountDetail);
    accessoryContent.setGoodsDetail(goodsDetail);
    accessoryContent.setTerminalDetail(terminalDetail);
    placeOrderRequest.setAccessoryContent(accessoryContent);
    SgsRequestWrap<PlaceOrderRequest> wrap = SgsRequestWrap.wrap(placeOrderRequest);

    System.out.println("placeOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<PlaceOrderResponse> responseWrap = client.execute(SgsApi.PLACE_ACQUIRE_ORDER, wrap);
    System.out.println("placeOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    PlaceOrderResponse body = responseWrap.getBody();
    System.out.println("placeOrder body=>" + JSON.toJSONString(body));

3. Order cancellation

ByMerchantOrderNo

    PayByClient client = getPayByClient();

    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    // Merchant order number Required
    orderIndexRequest.setMerchantOrderNo("M202005120001");
    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("cancelOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetPlaceOrderResponse> responseWrap = client.execute(SgsApi.CANCEL_ACQUIRE_ORDER, wrap);
    System.out.println("cancelOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetPlaceOrderResponse body = responseWrap.getBody();
    System.out.println("cancelOrder body=>" + JSON.toJSONString(body));

ByOrderNo

    PayByClient client = getPayByClient();

    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    // Order number Required
    orderIndexRequest.setOrderNo("190000000001");
    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("cancelOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetPlaceOrderResponse> responseWrap = client.execute(SgsApi.CANCEL_ACQUIRE_ORDER, wrap);
    System.out.println("cancelOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetPlaceOrderResponse body = responseWrap.getBody();
    System.out.println("cancelOrder body=>" + JSON.toJSONString(body));

4. Order query

ByMerchantOrderNo

    PayByClient client = getPayByClient();

    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    // Merchant order number Required
    orderIndexRequest.setMerchantOrderNo("M202005120001");
    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("getOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetPlaceOrderResponse> responseWrap = client.execute(SgsApi.GET_ACQUIRE_ORDER, wrap);
    System.out.println("getOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetPlaceOrderResponse body = responseWrap.getBody();
    System.out.println("getOrder body=>" + JSON.toJSONString(body));

ByOrderNo

    PayByClient client = getPayByClient();

    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    //order number Required
    orderIndexRequest.setOrderNo("13000000023101");
    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("getOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetPlaceOrderResponse> responseWrap = client.execute(SgsApi.GET_ACQUIRE_ORDER, wrap);
    System.out.println("getOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetPlaceOrderResponse body = responseWrap.getBody();
    System.out.println("getOrder body=>" + JSON.toJSONString(body));

5. Order refund

ByOriginMerchantOrderNo

    PayByClient client = getPayByClient();

    PlaceRefundOrderRequest placeRefundOrderRequest = new PlaceRefundOrderRequest();
    // Refund refund amount Required
    placeRefundOrderRequest.setAmount(new ExternalMoney(new BigDecimal("0.1"), "AED"));
    // Merchant order number Required
    placeRefundOrderRequest.setRefundMerchantOrderNo("M80000000001");
    // Original merchant order number
    placeRefundOrderRequest.setOriginMerchantOrderNo("M220000000001");
    // Refund operator name Optional
    placeRefundOrderRequest.setOperatorName("JACKMA");
    // Refund reason name Optional
    placeRefundOrderRequest.setReason("reason123");
    // Notification URL Optional
    placeRefundOrderRequest.setNotifyUrl("http://yoursite.com/api/notification");

    SgsRequestWrap<PlaceRefundOrderRequest> wrap = SgsRequestWrap.wrap(placeRefundOrderRequest);
    System.out.println("refundOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<PlaceRefundOrderResponse> responseWrap = client.execute(SgsApi.PLACE_REFUND_ORDER, wrap);
    System.out.println("refundOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    PlaceRefundOrderResponse body = responseWrap.getBody();
    System.out.println("refundOrder body=>" + JSON.toJSONString(body));

ByOriginOrderNo

    PayByClient client = getPayByClient();

    PlaceRefundOrderRequest placeRefundOrderRequest = new PlaceRefundOrderRequest();
    // Refund refund amount Required
    placeRefundOrderRequest.setAmount(new ExternalMoney(new BigDecimal("0.1"), "AED"));
    // Merchant order number Required
    placeRefundOrderRequest.setRefundMerchantOrderNo("M80000000001");
    // Original order number
    placeRefundOrderRequest.setOriginOrderNo("19000000001");
    // Refund operator name Optional
    placeRefundOrderRequest.setOperatorName("JACKMA");
    // Refund reason name Optional
    placeRefundOrderRequest.setReason("reason123");
    // Notification URL Optional
    placeRefundOrderRequest.setNotifyUrl("http://yoursite.com/api/notification");

    SgsRequestWrap<PlaceRefundOrderRequest> wrap = SgsRequestWrap.wrap(placeRefundOrderRequest);
    System.out.println("refundOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<PlaceRefundOrderResponse> responseWrap = client.execute(SgsApi.PLACE_REFUND_ORDER, wrap);
    System.out.println("refundOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    PlaceRefundOrderResponse body = responseWrap.getBody();
    System.out.println("refundOrder body=>" + JSON.toJSONString(body));

6. Order refund query

By Merchant Order No.

    PayByClient client = getPayByClient();

    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    // Merchant order number Required
    orderIndexRequest.setMerchantOrderNo("M80000000001");
    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("getRefundOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetRefundOrderResponse> responseWrap = client.execute(SgsApi.GET_REFUND_ORDER, wrap);
    System.out.println("getRefundOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetRefundOrderResponse body = responseWrap.getBody();
    System.out.println("getRefundOrder body=>" + JSON.toJSONString(body));

By Order No.

    PayByClient client = getPayByClient();


    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    // order number Required
    orderIndexRequest.setOrderNo("1900000000001");
    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("getRefundOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetRefundOrderResponse> responseWrap = client.execute(SgsApi.GET_REFUND_ORDER, wrap);
    System.out.println("getRefundOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetRefundOrderResponse body = responseWrap.getBody();
    System.out.println("getRefundOrder body=>" + JSON.toJSONString(body));

7. Transfer

    PayByClient client = getPayByClient();

    PlaceTransferOrderRequest placeTransferOrderRequest = new PlaceTransferOrderRequest();

    // Merchant order number Required
    placeTransferOrderRequest.setMerchantOrderNo("M320000000001");
    // Beneficiary Identity Type Required
    placeTransferOrderRequest.setBeneficiaryIdentityType("PHONE_NO");
    String payByPubKey = new String(Files
        .readAllBytes(Paths.get(PayByDemo.class.getClassLoader().getResource("payby_public_key.pem").toURI())));
    // Beneficiary Identity
    placeTransferOrderRequest
        .setBeneficiaryIdentity(RsaUtil.encrypt("971-585812341", Charset.forName("UTF-8"), payByPubKey, 2048));
    placeTransferOrderRequest
        .setBeneficiaryFullName(RsaUtil.encrypt("JACKMA", Charset.forName("UTF-8"), payByPubKey, 2048));

    // Transfer order amount Required
    placeTransferOrderRequest.setAmount(new ExternalMoney(new BigDecimal("0.1"), "AED"));

    // memo Required
    placeTransferOrderRequest.setMemo("Bonus");
    // Notification URL Optional
    placeTransferOrderRequest.setNotifyUrl("http://yoursite.com/api/notification");

    SgsRequestWrap<PlaceTransferOrderRequest> wrap = SgsRequestWrap.wrap(placeTransferOrderRequest);
    System.out.println("transfer request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<PlaceTransferOrderResponse> responseWrap = client.execute(SgsApi.PLACE_TRANSFER_ORDER, wrap);
    System.out.println("transfer response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    PlaceTransferOrderResponse body = responseWrap.getBody();
    System.out.println("transfer body=>" + JSON.toJSONString(body));

8. Transfer query

    PayByClient client = getPayByClient();

    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    // Merchant order number Required
    orderIndexRequest.setMerchantOrderNo("M320000000001");

    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("getTransferOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetTransferOrderResponse> responseWrap = client.execute(SgsApi.GET_TRANSFER_ORDER, wrap);
    System.out.println("getTransferOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetTransferOrderResponse body = responseWrap.getBody();
    System.out.println("getTransferOrder body=>" + JSON.toJSONString(body));

9. Transfer to bank

    PayByClient client = getPayByClient();

    PlaceTransferToBankOrderRequest placeTransferToBankOrderRequest = new PlaceTransferToBankOrderRequest();
    // Merchant order number Required
    placeTransferToBankOrderRequest.setMerchantOrderNo("M320000000002");
    String payByPubKey = new String(Files
        .readAllBytes(Paths.get(PayByDemo.class.getClassLoader().getResource("payby_public_key.pem").toURI())));
    // Holder Name Required
    placeTransferToBankOrderRequest
        .setHolderName(RsaUtil.encrypt("JACKMA", Charset.forName("UTF-8"), payByPubKey, 2048));
    // Iban Required
    placeTransferToBankOrderRequest
        .setIban(RsaUtil.encrypt("5000312313111", Charset.forName("UTF-8"), payByPubKey, 2048));
    // SwiftCode Optional
    placeTransferToBankOrderRequest.setSwiftCode("ARABAEADDER");
    // Transfer order amount Required
    placeTransferToBankOrderRequest.setAmount(new ExternalMoney(new BigDecimal("0.1"), "AED"));
    // memo Required
    placeTransferToBankOrderRequest.setMemo("Bonus");
    // Notification URL Optional
    placeTransferToBankOrderRequest.setNotifyUrl("http://yoursite.com/api/notification");

    SgsRequestWrap<PlaceTransferToBankOrderRequest> wrap = SgsRequestWrap.wrap(placeTransferToBankOrderRequest);
    System.out.println("transfer2bank request=>" + JSON.toJSONString(wrap));
    SgsResponseWrap<PlaceTransferToBankOrderResponse> responseWrap =
        client.execute(SgsApi.PLACE_TRANSFER_TO_BANK_ORDER, wrap);
    System.out.println("transfer2bank response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    PlaceTransferToBankOrderResponse body = responseWrap.getBody();
    System.out.println("transfer2bank body=>" + JSON.toJSONString(body));

10. Transfer to bank query

    PayByClient client = getPayByClient();

    OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
    // Merchant order number Required
    orderIndexRequest.setMerchantOrderNo("M320000000002");

    SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
    System.out.println("getTransferToBankOrder request=>" + JSON.toJSONString(wrap));

    SgsResponseWrap<GetTransferToBankOrderResponse> responseWrap =
        client.execute(SgsApi.GET_TRANSFER_TO_BANK_ORDER, wrap);
    System.out.println("getTransferToBankOrder response=>" + JSON.toJSONString(responseWrap));
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    GetTransferToBankOrderResponse body = responseWrap.getBody();
    System.out.println("getTransferToBankOrder body=>" + JSON.toJSONString(body));

11. Order revoke

PayByClient client = getPayByClient();

        OrderIndexRequest orderIndexRequest = new OrderIndexRequest();
        // Merchant order number Required
        orderIndexRequest.setMerchantOrderNo("M320000000002");
        SgsRequestWrap<OrderIndexRequest> wrap = SgsRequestWrap.wrap(orderIndexRequest);
        System.out.println("revokeOrder request=>" + JSON.toJSONString(wrap));

        SgsResponseWrap<GetPlaceOrderResponse> responseWrap = client.execute(SgsApi.REVOKE_ACQUIRE_ORDER, wrap);
        System.out.println("revokeOrder response=>" + JSON.toJSONString(responseWrap));
        Assert.assertTrue(SgsApi.checkResponse(responseWrap));
        GetPlaceOrderResponse body = responseWrap.getBody();
        System.out.println("revokeOrder body=>" + JSON.toJSONString(body));

12. Protocol apply

 PayByClient client = getPayByClient();

        ApplyProtocolRequest applyProtocolRequest = new ApplyProtocolRequest();
        // Merchant order number Required
        applyProtocolRequest.setMerchantOrderNo("M320000000002");
        // langType Optional
        applyProtocolRequest.setLangType(ProtocolLangType.EN);
        // expiredTime Optional
        applyProtocolRequest        .setExpiredTime(Date.from(LocalDateTime.now().plusHours(1).atZone(ZoneId.systemDefault()).toInstant()));

        String payByPubKey = new String(Files
            .readAllBytes(Paths.get(PayByDemo.class.getClassLoader().getResource("payby_public_key.pem").toURI())));
        // signerMerchantId Required
        applyProtocolRequest
            .setSignerMerchantId(RsaUtil.encrypt("200000001222", Charset.forName("UTF-8"), payByPubKey, 2048));
        // protocolSceneCode Required
        applyProtocolRequest.setProtocolSceneCode("110");
        // Notification URL Optional
        applyProtocolRequest.setNotifyUrl("http://yoursite.com/api/notification");
        // protocolSceneParams Required
        Map<String, String> protocolSceneParams = new HashMap<String, String>();
        protocolSceneParams.put("iapDeviceId", "");
        protocolSceneParams.put("appId", "");
        applyProtocolRequest.setProtocolSceneParams(protocolSceneParams);

        SgsRequestWrap<ApplyProtocolRequest> wrap = SgsRequestWrap.wrap(applyProtocolRequest);
        System.out.println("applyProtocol request=>" + JSON.toJSONString(wrap));
        SgsResponseWrap<ApplyProtocolResponse> responseWrap = client.execute(SgsApi.APPLY_PROTOCOL, wrap);
        System.out.println("applyProtocol response=>" + JSON.toJSONString(responseWrap));
        Assert.assertTrue(SgsApi.checkResponse(responseWrap));
        ApplyProtocolResponse body = responseWrap.getBody();
        System.out.println("applyProtocol body=>" + JSON.toJSONString(body));

13. Protocol query

 PayByClient client = getPayByClient();


        GetProtocolRequest getProtocolRequest = new GetProtocolRequest();
        // Merchant order number Required
        getProtocolRequest.setMerchantOrderNo("M320000000002");

        SgsRequestWrap<GetProtocolRequest> wrap = SgsRequestWrap.wrap(getProtocolRequest);
        System.out.println("getProtocol request=>" + JSON.toJSONString(wrap));

        SgsResponseWrap<GetProtocolResponse> responseWrap = client.execute(SgsApi.GET_PROTOCOL, wrap);
        System.out.println("getProtocol response=>" + JSON.toJSONString(responseWrap));
        Assert.assertTrue(SgsApi.checkResponse(responseWrap));
        GetProtocolResponse body = responseWrap.getBody();
        System.out.println("getProtocol body=>" + JSON.toJSONString(body));

14. Result notification

Verify signature

    // setting payby publicKey path
    String payByPubKey = new String(Files.readAllBytes(Paths.get(PayByDemo.class.getClassLoader().getResource("payby_public_key.pem").toURI())));
    String plain =
        "{\"notify_time\":\"20200428133706\",\"acquireOrder\":{\"product\":\"Basic Payment Gateway\",\"orderNo\":\"911588066370006619\",\"paySceneCode\":\"DYNQR\",\"subject\":\"123456\",\"accessoryContent\":{\"amountDetail\":{\"vatAmount\":{\"amount\":0.10,\"currency\":\"AED\"}},\"terminalDetail\":{\"merchantName\":\"binge test merchant\"},\"goodsDetail\":{\"goodsId\":\"GI1005\",\"body\":\"Gifts\",\"goodsName\":\"candy flower\"}},\"merchantOrderNo\":\"eaa16681-070b-4ae6-9b13-809b0db6eb89\",\"expiredTime\":1588073568745,\"requestTime\":1588066368745,\"totalAmount\":{\"amount\":0.10,\"currency\":\"AED\"},\"payeeMid\":\"200000042607\",\"notifyUrl\":\"http://yoursite.com/api/notification\",\"paymentInfo\":{\"payChannel\":\"BALANCE\",\"paidTime\":1588066471000,\"payeeFeeAmount\":{\"amount\":0.01,\"currency\":\"AED\"},\"payerFeeAmount\":{\"amount\":0.00,\"currency\":\"AED\"},\"paidAmount\":{\"amount\":0.10,\"currency\":\"AED\"},\"payerMid\":\"100000001104\"},\"status\":\"PAID_SUCCESS\"},\"_input_charset\":\"UTF-8\",\"notify_timestamp\":1588066626060,\"notify_id\":\"202004280007581901\"}";
    String sign =
        "dPVyhhidZioH00QCVglgDfXNcDXHuMXmtzYF4WCEvnvmL3nCyqP5r9DmQ2bQYOf30tLEpqx1vmJpcT85f8voual7+sKPAehGRbyL9m30BF1KHwOFOhZSnOsBO8NQDJ1WMkG34mRmndfKRWpzi6RzWwfS/twJRXTt7maY2yPt93xhqeb2JbG2hktDFx8tnk3oxXil3oZLFq75X2Gbpd1SkrsnvxTLq5Bo98i4K3Kl4jWySU/vu8nX0M2JPWF6uC3OlOMq32Wo3mDPqM0DzH9t9WBwz2X6MQVnc/aFA5GfJbMKMYFFYwCh9CPtaWbrGmAFXAC9u/sz8bt3IAyiAGdd4w==";

    // assert verify sign
    Assert.assertTrue(RsaUtil.verifySign(plain, Charset.forName("UTF-8"), sign, payByPubKey));

    GetPlaceOrderResponse callbackOrder = JSON.parseObject(plain, new TypeReference<GetPlaceOrderResponse>() {});

    System.out.println("acquireOrder callback body=>" + callbackOrder);

Servlet receives messages

 @Override
 protected void  doPost(HttpServletRequest req, HttpServletResponse httpResponse) throws ServletException, IOException {

    String sign = req.getHeader("sign");

    String body = IOUtils.toString(req.getInputStream(), "UTF-8");

    // setting payby publicKey path
    String payByPubKey = new String(Files.readAllBytes(Paths.get(PayByDemo.class.getClassLoader().getResource("payby_public_key.pem").toURI())));

    // assert verify sign
    Assert.assertTrue(RsaUtil.verifySign(plain, Charset.forName("UTF-8"), sign, payByPubKey));

    //TODO Business logic
    GetPlaceOrderResponse callbackOrder = JSON.parseObject(plain, new TypeReference<GetPlaceOrderResponse>() {});

    System.out.println("acquireOrder callback body=>" + callbackOrder);

    httpResponse.setContentType("application/json;charset=UTF-8");

    httpResponse.getOutputStream().write("SUCCESS".getBytes("UTF-8"));

    httpResponse.flushBuffer();

  }

15. Download Statement Order Statement

    GetStatementRequest req = new GetStatementRequest();
    // setting statementDate
    req.setStatementDate("20200605");
    PayByClient client = getPayByClient();
    SgsRequestWrap<GetStatementRequest> wrap = SgsRequestWrap.wrap(req);
    String statementFilePath = "d:\\payby_statement_file";
    File statementFileDir = new File(statementFilePath);
    System.out.println("getOrderStatement request=>" + JSON.toJSONString(wrap));
    SgsResponseWrap<File> responseWrap = client.download(SgsApi.GET_ORDER_STATEMENT, wrap, statementFileDir);
    System.out.println("getOrderStatement response=>" + responseWrap);
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    System.out.println("getOrderStatement file path=>" + responseWrap.getBody().getAbsolutePath());
    System.out.println("getOrderStatement file size=>" + responseWrap.getBody().length());

Fund Statement

    GetStatementRequest req = new GetStatementRequest();
    // setting statementDate
    req.setStatementDate("20200605");
    PayByClient client = getPayByClient();
    SgsRequestWrap<GetStatementRequest> wrap = SgsRequestWrap.wrap(req);
    String statementFilePath = "d:\\payby_statement_file";
    File statementFileDir = new File(statementFilePath);
    System.out.println("getFundStatement request=>" + JSON.toJSONString(wrap));
    SgsResponseWrap<File> responseWrap = client.download(SgsApi.GET_FUND_STATEMENT, wrap, statementFileDir);
    System.out.println("getFundStatement response=>" + responseWrap);
    Assert.assertTrue(SgsApi.checkResponse(responseWrap));
    System.out.println("getFundStatement file path=>" + responseWrap.getBody().getAbsolutePath());
    System.out.println("getFundStatement file size=>" + responseWrap.getBody().length());

16. InApp Signature

    InappSignContent content = new InappSignContent();
    // iapAppId Required
    content.setIapAppId("00001");
    // iapDeviceId Required
    content.setIapDeviceId("001");
    // partnerId Required
    content.setIapPartnerId("20000000076");
    // token Required
    content.setToken("daerccxxcdsda0eeda");
    String merchantPrivateKey = new String(Files.readAllBytes(
        Paths.get(PayByDemo.class.getClassLoader().getResource("merchant_demo_private.pem").toURI())));
    System.out.println("plain==>" + SignSerializationUtil.serialize(content));
    System.out.println("sign==>" + RsaUtil.sign(content, Charset.forName("UTF-8"), merchantPrivateKey));

Online payment SDK - JAVA

Description​

SDK Download​

Pre-Condition​

JDK​

Maven​

Import maven repository​

Download dependency​

Install local repository​

Deploy remote repository​

Project import maven dependency​

SDK cascade depends on specific content​

Bouncycastle version special description​

Digital signature​

Preparing keys​

Signature algorithm​

Encryption Algorithm​

Verify Signature Algorithm​

API Description​

Function Description​