JAVA+微信支付APP開發+支付寶支付APP開發

微信支付

網址：https://pay.weixin.qq.com/guide/index.shtml

DEMO下載：https://pay.weixin.qq.com/wiki/doc/api/download/WxPayAPI_JAVA_v3.zip

 

 

 

微信支付 Java SDK

------

 

對[微信支付開發者文檔](https://pay.weixin.qq.com/wiki/doc/api/index.html)中給出的API進行了封裝。

 

com.github.wxpay.sdk.WXPay類下提供了對應的方法：

 

|方法名 | 說明 |

|--------|--------|

|microPay| 刷卡支付 |

|unifiedOrder | 統一下單|

|orderQuery | 查詢訂單 |

|reverse | 撤銷訂單 |

|closeOrder|關閉訂單|

|refund|申請退款|

|refundQuery|查詢退款|

|downloadBill|下載對帳單|

|report|交易保障|

|shortUrl|轉換短連接|

|authCodeToOpenid|受權碼查詢openid|

 

* 參數爲`Map<String, String>`對象，返回類型也是`Map<String, String>`。

* 方法內部會將參數會轉換成含有`appid`、`mch_id`、`nonce_str`、`sign\_type`和`sign`的XML；

* 默認使用MD5進行簽名；

* 經過HTTPS請求獲得返回數據後會對其作必要的處理（例如驗證簽名，簽名錯誤則拋出異常）。

* 對於downloadBill，不管是否成功都返回Map，且都含有`return_code`和`return_msg`。若成功，其中`return_code`爲`SUCCESS`，另外`data`對應對帳單數據。

 

 

## 安裝

maven:

```

<dependency>

    <groupId>com.github.wxpay</groupId>

    <artifactId>wxpay-sdk</artifactId>

    <version>0.0.3</version>

</dependency>

```

 

## 示例

配置類MyConfig:

```java

import com.github.wxpay.sdk.WXPayConfig;

import java.io.*;

 

public class MyConfig implements WXPayConfig{

 

    private byte[] certData;

 

    public MyConfig() throws Exception {

        String certPath = "/path/to/apiclient_cert.p12";

        File file = new File(certPath);

        InputStream certStream = new FileInputStream(file);

        this.certData = new byte[(int) file.length()];

        certStream.read(this.certData);

        certStream.close();

    }

 

    public String getAppID() {

        return "wx8888888888888888";

    }

 

    public String getMchID() {

        return "12888888";

    }

 

    public String getKey() {

        return "88888888888888888888888888888888";

    }

 

    public InputStream getCertStream() {

        ByteArrayInputStream certBis = new ByteArrayInputStream(this.certData);

        return certBis;

    }

 

    public int getHttpConnectTimeoutMs() {

        return 8000;

    }

 

    public int getHttpReadTimeoutMs() {

        return 10000;

    }

}

```

 

統一下單：

 

```java

import com.github.wxpay.sdk.WXPay;

 

import java.util.HashMap;

import java.util.Map;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

 

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config);

 

        Map<String, String> data = new HashMap<String, String>();

        data.put("body", "騰訊充值中心-QQ會員充值");

        data.put("out_trade_no", "2016090910595900000012");

        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://www.example.com/wxpay/notify");

        data.put("trade_type", "NATIVE");  // 此處指定爲掃碼支付

        data.put("product_id", "12");

 

        try {

            Map<String, String> resp = wxpay.unifiedOrder(data);

            System.out.println(resp);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

 

}

```

 

訂單查詢：

```java

import com.github.wxpay.sdk.WXPay;

 

import java.util.HashMap;

import java.util.Map;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

 

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config);

 

        Map<String, String> data = new HashMap<String, String>();

        data.put("out_trade_no", "2016090910595900000012");

 

        try {

            Map<String, String> resp = wxpay.orderQuery(data);

            System.out.println(resp);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

 

}

```

 

退款查詢：

 

```java

import com.github.wxpay.sdk.WXPay;

 

import java.util.HashMap;

import java.util.Map;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

 

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config);

 

        Map<String, String> data = new HashMap<String, String>();

        data.put("out_trade_no", "2016090910595900000012");

 

        try {

            Map<String, String> resp = wxpay.refundQuery(data);

            System.out.println(resp);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

 

}

```

 

下載對帳單：

 

```java

import com.github.wxpay.sdk.WXPay;

 

import java.util.HashMap;

import java.util.Map;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

 

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config);

 

        Map<String, String> data = new HashMap<String, String>();

        data.put("bill_date", "20140603");

        data.put("bill_type", "ALL");

 

        try {

            Map<String, String> resp = wxpay.downloadBill(data);

            System.out.println(resp);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

 

}

```

 

其餘API的使用和上面相似。

 

暫時不支持下載壓縮格式的對帳單，但可使用該SDK生成請求用的XML數據：

```java

import com.github.wxpay.sdk.WXPay;

import com.github.wxpay.sdk.WXPayUtil;

 

import java.util.HashMap;

import java.util.Map;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

 

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config);

 

        Map<String, String> data = new HashMap<String, String>();

        data.put("bill_date", "20140603");

        data.put("bill_type", "ALL");

        data.put("tar_type", "GZIP");

 

        try {

            data = wxpay.fillRequestData(data);

            System.out.println(WXPayUtil.mapToXml(data));

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

 

}

```

 

收到支付結果通知時，須要驗證簽名，能夠這樣作：

```java

 

import com.github.wxpay.sdk.WXPay;

import com.github.wxpay.sdk.WXPayUtil;

 

import java.util.Map;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

 

        String notifyData = "...."; // 支付結果通知的xml格式數據

 

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config);

 

        Map<String, String> notifyMap = WXPayUtil.xmlToMap(notifyData);  // 轉換成map

 

        if (wxpay.isPayResultNotifySignatureValid(notifyMap)) {

            // 簽名正確

            // 進行處理。

            // 注意特殊狀況：訂單已經退款，但收到了支付結果成功的通知，不該把商戶側訂單狀態從退款改爲支付成功

        }

        else {

            // 簽名錯誤，若是數據裏沒有sign字段，也認爲是簽名錯誤

        }

    }

 

}

```

 

HTTPS請求默認使用MD5算法簽名，若須要使用HMAC-SHA256：

```

import com.github.wxpay.sdk.WXPay;

import com.github.wxpay.sdk.WXPayConstants;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config, WXPayConstants.SignType.HMACSHA256);

        // ......

    }

}

```

 

若須要使用sandbox環境：

```

import com.github.wxpay.sdk.WXPay;

import com.github.wxpay.sdk.WXPayConstants;

 

public class WXPayExample {

 

    public static void main(String[] args) throws Exception {

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config, WXPayConstants.SignType.MD5, true);

        // ......

    }

 

}

```

 

## License

BSD

支付寶支付

網站：https://open.alipay.com/developmentAccess/developmentAccess.htm

系統交互流程:

 

 

 

Maven:

<dependency>

    <groupId>com.alipay.sdk</groupId>

    <artifactId>alipay-sdk-java</artifactId>

    <version>3.0.52.ALL</version>

</dependency>

JAVA服務端SDK生成APP支付訂單信息示例

//實例化客戶端

AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2");

//實例化具體API對應的request類,類名稱和接口名稱對應,當前調用接口名稱：alipay.trade.app.pay

AlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest();

//SDK已經封裝掉了公共參數，這裏只須要傳入業務參數。如下方法爲sdk的model入參方式(model和biz_content同時存在的狀況下取biz_content)。

AlipayTradeAppPayModel model = new AlipayTradeAppPayModel();

model.setBody("我是測試數據");

model.setSubject("App支付測試Java");

model.setOutTradeNo(outtradeno);

model.setTimeoutExpress("30m");

model.setTotalAmount("0.01");

model.setProductCode("QUICK_MSECURITY_PAY");

request.setBizModel(model);

request.setNotifyUrl("商戶外網能夠訪問的異步地址");

try {

        //這裏和普通的接口調用不一樣，使用的是sdkExecute

        AlipayTradeAppPayResponse response = alipayClient.sdkExecute(request);

        System.out.println(response.getBody());//就是orderString 能夠直接給客戶端請求，無需再作處理。

    } catch (AlipayApiException e) {

        e.printStackTrace();

}

JAVA服務端驗證異步通知信息參數示例

//獲取支付寶POST過來反饋信息

Map<String,String> params = new HashMap<String,String>();

Map requestParams = request.getParameterMap();

for (Iterator iter = requestParams.keySet().iterator(); iter.hasNext();) {

    String name = (String) iter.next();

    String[] values = (String[]) requestParams.get(name);

    String valueStr = "";

    for (int i = 0; i < values.length; i++) {

        valueStr = (i == values.length - 1) ? valueStr + values[i]

                    : valueStr + values[i] + ",";

   }

    //亂碼解決，這段代碼在出現亂碼時使用。

//valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");

params.put(name, valueStr);

}

//切記alipaypublickey是支付寶的公鑰，請去open.alipay.com對應應用下查看。

//boolean AlipaySignature.rsaCheckV1(Map<String, String> params, String publicKey, String charset, String sign_type)

boolean flag = AlipaySignature.rsaCheckV1(params, alipaypublicKey, charset,"RSA2")

交易操做

1.交易查詢接口alipay.trade.query：

AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2"); //得到初始化的AlipayClient

AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();//建立API對應的request類

request.setBizContent("{" +"   \"out_trade_no\":\"20150320010101001\"," +"   \"trade_no\":\"2014112611001004680073956707\"" +"  }");//設置業務參數

AlipayTradeQueryResponse response = alipayClient.execute(request);//經過alipayClient調用API，得到對應的response類

System.out.print(response.getBody());//根據response中的結果繼續業務邏輯處理

2.交易退款接口alipay.trade.refund：

AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2"); //得到初始化的AlipayClient AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();//建立API對應的request類 request.setBizContent("{" + " \"out_trade_no\":\"20150320010101001\"," + " \"trade_no\":\"2014112611001004680073956707\"," + " \"out_request_no\":\"1000001\"," + " \"refund_amount\":\"1\"" + " }");//設置業務參數 AlipayTradeRefundResponse response = alipayClient.execute(request);//經過alipayClient調用API，得到對應的response類 System.out.print(response.getBody()); // 根據response中的結果繼續業務邏輯處理

3.查詢對帳單下載地址接口

alipay.data.dataservice.bill.downloadurl.query：
爲了保障交易的正確性，支付寶提供了交易帳單數據提供給商戶對帳，對帳說明。

AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2"); //得到初始化的AlipayClient

AlipayDataDataserviceBillDownloadurlQueryRequest request = new AlipayDataDataserviceBillDownloadurlQueryRequest();//建立API對應的request類

request.setBizContent("{" +"    \"bill_type\":\"trade\"," +"    \"bill_date\":\"2016-04-05\"" +"  }");//設置業務參數

AlipayDataDataserviceBillDownloadurlQueryResponse response = alipayClient.execute(request);

System.out.print(response.getBody());//根據response中的結果繼續業務邏輯處理

4.下載帳單文件：

//將接口返回的對帳單下載地址傳入urlStr

String urlStr = "http://dwbillcenter.alipay.com/downloadBillFile.resource?bizType=X&userId=X&fileType=X&bizDates=X&downloadFileName=X&fileId=X";//指定但願保存的文件路徑

String filePath = "/Users/fund_bill_20160405.csv";

URL url = null;

HttpURLConnection httpUrlConnection = null;

InputStream fis = null;

FileOutputStream fos = null;try {

    url = new URL(urlStr);

    httpUrlConnection = (HttpURLConnection) url.openConnection();

    httpUrlConnection.setConnectTimeout(5 * 1000);

    httpUrlConnection.setDoInput(true);

    httpUrlConnection.setDoOutput(true);

    httpUrlConnection.setUseCaches(false);

    httpUrlConnection.setRequestMethod("GET");

    httpUrlConnection.setRequestProperty("Charsert", "UTF-8");

    httpUrlConnection.connect();

    fis = httpUrlConnection.getInputStream();

    byte[] temp = new byte[1024];

    int b;

    fos = new FileOutputStream(new File(filePath));

    while ((b = fis.read(temp)) != -1) {

        fos.write(temp, 0, b);

        fos.flush();

    }

} catch (MalformedURLException e) {

    e.printStackTrace();

} catch (IOException e) {

    e.printStackTrace();

} finally {

    try {

        fis.close();

        fos.close();

        httpUrlConnection.disconnect();

    } catch (NullPointerException e) {

        e.printStackTrace();

    } catch (IOException e) {

        e.printStackTrace();

    }

}