​

1:https://opendocs.alipay.com/open/028sma網址 電腦網站支付產品
2:需要準備的 :appid 支付寶公鑰(公鑰有兩個，切記是支付寶公鑰不是應用公鑰) 應用私鑰

依賴
<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>3.7.4.ALL</version>
</dependency>
3：如圖所示​

例項

@Value("${zfb.pay.notifyUrl}")
public  String payNotifyali;

@Value("${zfb.pay.appid}")
public String APPID;

/**
 * 支付寶公鑰
 */
@Value("${zfb.pay.alipayPublicKey}")
public String ALIPAYPUBLICKEY;
/**
 * 應用私鑰
 */
@Value("${zfb.pay.aLIPAYAPPPRIVATEKEY}")
public String ALIPAYAPPPRIVATEKEY;


/**
 * 阿里支付域名
 */
static final String SERVER_URL = "https://openapi.alipay.com/gateway.do";


/**
 * 支付寶支付
 *
 * @return
 */
public AlipayTradePagePayResponse createQrCode(String orderNo, double money, String proName, String returnUrl) throws AlipayApiException {
    AlipayClient alipayClient = new DefaultAlipayClient(SERVER_URL, APPID, ALIPAYAPPPRIVATEKEY, "json", "UTF-8", ALIPAYPUBLICKEY, "RSA2");
    AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
    request.setNotifyUrl(payNotifyali);
    //request.setNotifyUrl("https://edu-dev.zt-spacex.com/eduapi/payNotifyali");
    if (StringUtils.isNotBlank(returnUrl)) {
        request.setReturnUrl(returnUrl);
    }
    JSONObject bizContent = new JSONObject();
    bizContent.put("out_trade_no", orderNo);
    bizContent.put("total_amount", money);
    bizContent.put("subject", proName);
    bizContent.put("product_code", "FAST_INSTANT_TRADE_PAY");
    request.setBizContent(bizContent.toString());
    log.info(bizContent.toString());
    AlipayTradePagePayResponse response = alipayClient.pageExecute(request, "GET");
    if (response.isSuccess()) {
        log.info("呼叫成功");
        return response;
    } else {
        log.info("呼叫失敗");
        return response;
    }

}

上面所示程式碼是生成支付頁面。

​

建立了支付資訊，設定了回撥地址，那麼伴隨著我們的業務邏輯就需要在回撥中處理.

回撥程式碼例項:

​

​

程式碼例項:

@Override
@Transactional
public String payNotifyzfb(HttpServletRequest request) throws AlipayApiException {

    Map<String, String> parameterMap = getParameterMap(request);
    log.info("開始驗籤");
    log.info("轉map後引數為" + parameterMap);
    // 該請求是否來源於阿里  驗籤
    boolean signVerified = AlipaySignature
            .rsaCheckV1(parameterMap, AlipayConfig.alipayPublicKey, AlipayConstants.CHARSET_UTF8, AlipayConstants.SIGN_TYPE_RSA2);
    log.info(parameterMap.toString());
    // 判斷訂單狀態是否成功
    if (signVerified) {
        AlipayNotifyParam param = buildAlipayNotifyParam(parameterMap);
        String tradeStatus = param.getTradeStatus();
        // 支付成功
        if (tradeStatus.equals(AlipayTradeStatus.TRADE_SUCCESS.getStatus())
                || tradeStatus.equals(AlipayTradeStatus.TRADE_FINISHED.getStatus())) {
            // 處理支付成功邏輯
            try {
                String successTime = "";
                if (param.getGmtPayment() != null) {
                    SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                    String dateString = formatter.format(param.getGmtPayment());
                    successTime = dateString;
                }
                //儲存支付資訊
              
            } catch (Exception e) {
                e.printStackTrace();
                log.info("支付寶回撥業務處理報錯,params:", e.getMessage());
            }
        } else {
            log.info("沒有處理支付寶回撥業務，支付寶交易狀態：{},params:{}", tradeStatus);
        }
        return "success";
    } else {
        return "failure";
    }
}

private AlipayNotifyParam buildAlipayNotifyParam(Map<String, String> params) {
    String json = JSON.toJSONString(params);
    return JSON.parseObject(json, AlipayNotifyParam.class);
}

/**
 * 將request中的資料轉換成map
 *
 * @param request
 * @return
 */
public static Map<String, String> getParameterMap(HttpServletRequest request) {
    Map paramsMap = request.getParameterMap();
    log.info("獲取的引數為" + request.getParameterMap());
    Map<String, String> returnMap = new HashMap();
    Iterator entries = paramsMap.entrySet().iterator();
    Map.Entry entry;
    String name = "";
    String value = "";
    while (entries.hasNext()) {
        entry = (Map.Entry) entries.next();
        name = (String) entry.getKey();
        Object valueObj = entry.getValue();
        if (null == valueObj) {
            value = "";
        } else if (valueObj instanceof String[]) {
            String[] values = (String[]) valueObj;
            for (int i = 0; i < values.length; i++) {
                value = values[i] + ",";
            }
            value = value.substring(0, value.length() - 1);
        } else {
            value = valueObj.toString();
        }
        returnMap.put(name, value);
    }
    return returnMap;
}

private AlipayNotifyParam buildAlipayNotifyParam(Map<String, String> params) {
    String json = JSON.toJSONString(params);
    return JSON.parseObject(json, AlipayNotifyParam.class);
}

這就是一套支付寶支付以及回撥業務處理的流程，不喜勿噴!!!!!

​