微信支付

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

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

 

 

 

微信支付 Java SDK

——

 

[微信支付开发者文档](https://pay.weixin.qq.com/wiki/doc/api/index.html)中给出的API进行了封装。

 

com.github.wxpay.sdk.WXPay类下提供了对应的方法:

 

|方法名 | 说明 |

|——–|——–|

|microPay| 刷卡支付 |

|unifiedOrder | 统一下单|

|orderQuery | 查询订单 |

|reverse | 撤销订单 |

|closeOrder|关闭订单|

|refund|申请退款|

|refundQuery|查询退款|

|downloadBill|下载对账单|

|report|交易保障|

|shortUrl|转换短链接|

|authCodeToOpenid|授权码查询openid|

 

* 参数为`Map<String, String>`对象,返回类型也是`Map<String, String>`

* 方法内部会将参数会转换成含有`appid``mch_id``nonce_str``sign\_type``sign`XML

* 默认使用MD5进行签名;

* 通过HTTPS请求得到返回数据后会对其做必要的处理(例如验证签名,签名错误则抛出异常)。

* 对于downloadBill,无论是否成功都返回Map,且都含有`return_code``return_msg`。若成功,其中`return_code``SUCCESS`,另外`data`对应对账单数据。

 

 

## 安装

maven:

“`

<dependency>

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

    <artifactId>wxpay-sdk</artifactId>

    <version>0.0.3</version>

</dependency>

“`

 

## 示例

配置类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;

    }

}

“`

 

统一下单:

 

“`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”, “腾讯充值中心-QQ会员充值“);

        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”);  // 此处指定为扫码支付

        data.put(“product_id”, “12”);

 

        try {

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

            System.out.println(resp);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

 

}

“`

 

订单查询:

“`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();

        }

    }

 

}

“`

 

退款查询:

 

“`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();

        }

    }

 

}

“`

 

下载对账单:

 

“`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();

        }

    }

 

}

“`

 

其他API的使用和上面类似。

 

暂时不支持下载压缩格式的对账单,但可以使用该SDK生成请求用的XML数据:

“`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();

        }

    }

 

}

“`

 

收到支付结果通知时,需要验证签名,可以这样做:

“`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 = “….”; // 支付结果通知的xml格式数据

 

        MyConfig config = new MyConfig();

        WXPay wxpay = new WXPay(config);

 

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

 

        if (wxpay.isPayResultNotifySignatureValid(notifyMap)) {

            // 签名正确

            // 进行处理。

            // 注意特殊情况:订单已经退款,但收到了支付结果成功的通知,不应把商户侧订单状态从退款改成支付成功

        }

        else {

            // 签名错误,如果数据里没有sign字段,也认为是签名错误

        }

    }

 

}

“`

 

HTTPS请求默认使用MD5算法签名,若需要使用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);

        // ……

    }

}

“`

 

若需要使用sandbox环境:

“`

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

支付宝支付

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

系统交互流程:

 

 

 

Maven:

<dependency>

    <groupId>com.alipay.sdk</groupId>

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

    <version>3.0.52.ALL</version>

</dependency>

JAVA服务端SDK生成APP支付订单信息示例

//实例化客户端

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

//实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称:alipay.trade.app.pay

AlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest();

//SDK已经封装掉了公共参数,这里只需要传入业务参数。以下方法为sdk的model入参方式(model和biz_content同时存在的情况下取biz_content)。

AlipayTradeAppPayModel model = new AlipayTradeAppPayModel();

model.setBody(“我是测试数据”);

model.setSubject(“App支付测试Java”);

model.setOutTradeNo(outtradeno);

model.setTimeoutExpress(“30m”);

model.setTotalAmount(“0.01”);

model.setProductCode(“QUICK_MSECURITY_PAY”);

request.setBizModel(model);

request.setNotifyUrl(“商户外网可以访问的异步地址”);

try {

        //这里和普通的接口调用不同,使用的是sdkExecute

        AlipayTradeAppPayResponse response = alipayClient.sdkExecute(request);

        System.out.println(response.getBody());//就是orderString 可以直接给客户端请求,无需再做处理。

    } catch (AlipayApiException e) {

        e.printStackTrace();

}

JAVA服务端验证异步通知信息参数示例

//获取支付宝POST过来反馈信息

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] + “,”;

   }

    //乱码解决,这段代码在出现乱码时使用。

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

params.put(name, valueStr);

}

//切记alipaypublickey是支付宝的公钥,请去open.alipay.com对应应用下查看。

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

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

交易操作

1.交易查询接口alipay.trade.query

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

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”); //获得初始化的AlipayClient AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();//创建API对应的request类 request.setBizContent(“{” + ” \”out_trade_no\”:\”20150320010101001\”,” + ” \”trade_no\”:\”2014112611001004680073956707\”,” + ” \”out_request_no\”:\”1000001\”,” + ” \”refund_amount\”:\”1\”” + ” }”);//设置业务参数 AlipayTradeRefundResponse 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

3.查询对账单下载地址接口

alipay.data.dataservice.bill.downloadurl.query:
为了保障交易的正确性,支付宝提供了交易账单数据提供给商户对账,对账说明

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

AlipayDataDataserviceBillDownloadurlQueryRequest request = new AlipayDataDataserviceBillDownloadurlQueryRequest();//创建API对应的request类

request.setBizContent(“{” +”    \”bill_type\”:\”trade\”,” +”    \”bill_date\”:\”2016-04-05\”” +”  }”);//设置业务参数

AlipayDataDataserviceBillDownloadurlQueryResponse response = alipayClient.execute(request);

System.out.print(response.getBody());//根据response中的结果继续业务逻辑处理

4.下载账单文件:

//将接口返回的对账单下载地址传入urlStr

String urlStr = “http://dwbillcenter.alipay.com/downloadBillFile.resource?bizType=X&userId=X&fileType=X&bizDates=X&downloadFileName=X&fileId=X”;//指定希望保存的文件路径

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();

    }

}

 

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