支付寶移動H5支付接入

1.導入sdk

<dependency>
    <groupId>com.alipay.sdk</groupId>
    <artifactId>alipay-sdk-java</artifactId>
    <version>4.8.73.ALL</version>
</dependency>

 

2.我用的是證書方式請求

public class AlipayUtil {

    /**
     * 處理請求參數
     * @param requestParams
     * @return
     */
    public static Map<String, String> handleParams(Map<String, String[]> requestParams){
        Map<String, String> handleMap = new HashMap<>(requestParams.size());
        for (Map.Entry<String, String[]> entry : requestParams.entrySet()) {
            String key = entry.getKey();
            String[] value = entry.getValue();
            handleMap.put(key, join(value, ","));
        }
        return handleMap;
    }

    /**
     * 數組轉字符串  ["1", "2"]  ==> "1,2"
     * @param os
     * @param splitString
     * @return
     */
    public static String join(Object[] os, String splitString){
        String s = "";
        if (os != null) {
            StringBuilder sBuffer = new StringBuilder();
            for (int i = 0; i < os.length; i++) {
                sBuffer.append(os[i]).append(splitString);
            }
            s = sBuffer.deleteCharAt(sBuffer.length() - 1).toString();
        }
        return s;
    }

    /**
     * 校驗是否支付成功
     * @param handleParams
     * @return
     */
    public static boolean rsaCheck(Map<String, String> handleParams) {
        boolean checkV1 = false;
        try {
            checkV1 = AlipaySignature.rsaCertCheckV1(handleParams, AlipayConfig.ALIPAY_PUBLIC_KEY_PATH, AlipayConfig.CHARSET, AlipayConfig.SIGNTYPE);
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        return checkV1;
    }


   



    public static String getH5ByPath(String body,String subject,String outTradeNo,String money) throws Exception {

//構造client
        CertAlipayRequest certAlipayRequest = new CertAlipayRequest();
//設置網關地址
        certAlipayRequest.setServerUrl(AlipayConfig.URL);
//設置應用Id
        certAlipayRequest.setAppId(AlipayConfig.APPID);
//設置應用私鑰
        certAlipayRequest.setPrivateKey(RSAUtil.loadKeyFromFile(AlipayConfig.RSA_PRIVATE_KEY_PATH));
//設置請求格式，固定值json
        certAlipayRequest.setFormat(AlipayConfig.FORMAT);
//設置字符集
        certAlipayRequest.setCharset(AlipayConfig.CHARSET);
//設置簽名類型
        certAlipayRequest.setSignType(AlipayConfig.SIGNTYPE);
//設置應用公鑰證書路徑
        certAlipayRequest.setCertPath(AlipayConfig.RSA_PUBLIC_KEY_PATH);
//設置支付寶公鑰證書路徑
        certAlipayRequest.setAlipayPublicCertPath(AlipayConfig.ALIPAY_PUBLIC_KEY_PATH);
//設置支付寶根證書路徑
        certAlipayRequest.setRootCertPath(AlipayConfig.ALIPAY_ROOT_KEY_PATH);
//構造client
        AlipayClient alipayClient = new DefaultAlipayClient(certAlipayRequest);

//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
        AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();
//SDK已經封裝掉了公共參數，這裏只需要傳入業務參數。以下方法爲sdk的model入參方式(model和biz_content同時存在的情況下取biz_content)。
        AlipayTradeWapPayModel model = new AlipayTradeWapPayModel();
        model.setBody(body);
        model.setSubject(body);
        model.setOutTradeNo(outTradeNo);
        model.setTimeoutExpress(AlipayConfig.TIME_OUT);
        model.setTotalAmount(money);
        model.setProductCode("QUICK_WAP_PAY");
        request.setBizModel(model);
        request.setNotifyUrl(AlipayConfig.notify_url);
        request.setReturnUrl(AlipayConfig.return_url);
        String form="";
        try {
            form = alipayClient.pageExecute(request,"GET").getBody(); //調用SDK生成表單
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        return form;
    }




}

因爲我這裏需要獲取url在app做攔截，所以用的是GET請求alipayClient.pageExecute(request,"GET").getBody()

 

最後驗籤：

@PostMapping(value = "alipay_notify_url")
@ApiOperation(value = "alipay_notify_url")
public String  alipay_notify_url(HttpServletRequest request, HttpServletResponse response) throws Exception {

        //支付寶
        Map<String, String[]> parameterMap = request.getParameterMap();
        Map<String, String> handleParams = AlipayUtil.handleParams(parameterMap);
        //商戶訂單號
        String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");
        //支付寶交易號

        String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

        //交易狀態
        String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"),"UTF-8");

        boolean rsaCheck = AlipayUtil.rsaCheck(handleParams);
        if (rsaCheck){
            if (trade_status.equals("TRADE_FINISHED") || trade_status.equals("TRADE_SUCCESS")) {
               
                
            }else{
                log.error("沒有處理支付寶回調業務，支付寶交易狀態：{},handleParams:{}",trade_status,handleParams);
            }
        }else {
            log.info("支付寶回調簽名認證失敗，signVerified=false, handleParams:{}", handleParams);
        }
        return rsaCheck ? "success" : "failure";
}