工具類 支付寶 簽名獲取 key

支付寶 工具類

支付寶 簽名獲取 key

public class OrderInfoUtil2_0 {

    /**
     * 構造授權參數列表
     * 
     * @param pid
     * @param app_id
     * @param target_id
     * @return
     */
    public static Map<String, String> buildAuthInfoMap(String pid, String app_id, String target_id) {
        Map<String, String> keyValues = new HashMap<String, String>();

        // 商戶簽約拿到的app_id，如：2013081700024223
        keyValues.put("app_id", app_id);

        // 商戶簽約拿到的pid，如：2088102123816631
        keyValues.put("pid", pid);

        // 服務接口名稱， 固定值
        keyValues.put("apiname", "com.alipay.account.auth");

        // 商戶類型標識， 固定值
        keyValues.put("app_name", "mc");

        // 業務類型， 固定值
        keyValues.put("biz_type", "openservice");

        // 產品碼， 固定值
        keyValues.put("product_id", "APP_FAST_LOGIN");

        // 授權範圍， 固定值
        keyValues.put("scope", "kuaijie");

        // 商戶唯一標識，如：kkkkk091125
        keyValues.put("target_id", target_id);

        // 授權類型， 固定值
        keyValues.put("auth_type", "AUTHACCOUNT");

        // 簽名類型
        keyValues.put("sign_type", "RSA");

        return keyValues;
    }

    /**
     * 構造支付訂單參數列表
     * @param pid
     * @param app_id
     * @param target_id
     * @return
     */
    public static Map<String, String> buildOrderParamMap(String app_id) {
        Map<String, String> keyValues = new HashMap<String, String>();

        keyValues.put("app_id", app_id);

        keyValues.put("biz_content", "{\"timeout_express\":\"30m\",\"product_code\":\"QUICK_MSECURITY_PAY\",\"total_amount\":\"0.01\",\"subject\":\"1\",\"body\":\"我是測試數據\",\"out_trade_no\":\"" + getOutTradeNo() +  "\"}");

        keyValues.put("charset", "utf-8");

        keyValues.put("method", "alipay.trade.app.pay");

        keyValues.put("sign_type", "RSA");

        keyValues.put("timestamp", "2016-07-29 16:55:53");

        keyValues.put("version", "1.0");

        return keyValues;
    }

    /**
     * 構造支付訂單參數信息
     * 
     * @param map
     * 支付訂單參數
     * @return
     */
    public static String buildOrderParam(Map<String, String> map) {
        List<String> keys = new ArrayList<String>(map.keySet());

        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < keys.size() - 1; i++) {
            String key = keys.get(i);
            String value = map.get(key);
            sb.append(buildKeyValue(key, value, true));
            sb.append("&");
        }

        String tailKey = keys.get(keys.size() - 1);
        String tailValue = map.get(tailKey);
        sb.append(buildKeyValue(tailKey, tailValue, true));

        return sb.toString();
    }

    /**
     * 拼接鍵值對
     * 
     * @param key
     * @param value
     * @param isEncode
     * @return
     */
    private static String buildKeyValue(String key, String value, boolean isEncode) {
        StringBuilder sb = new StringBuilder();
        sb.append(key);
        sb.append("=");
        if (isEncode) {
            try {
                sb.append(URLEncoder.encode(value, "UTF-8"));
            } catch (UnsupportedEncodingException e) {
                sb.append(value);
            }
        } else {
            sb.append(value);
        }
        return sb.toString();
    }

    /**
     * 對支付參數信息進行簽名
     * 
     * @param map
     *            待簽名授權信息
     * 
     * @return
     */
    public static String getSign(Map<String, String> map, String rsaKey) {
        List<String> keys = new ArrayList<String>(map.keySet());
        // key排序
        Collections.sort(keys);

        StringBuilder authInfo = new StringBuilder();
        for (int i = 0; i < keys.size() - 1; i++) {
            String key = keys.get(i);
            String value = map.get(key);
            authInfo.append(buildKeyValue(key, value, false));
            authInfo.append("&");
        }

        String tailKey = keys.get(keys.size() - 1);
        String tailValue = map.get(tailKey);
        authInfo.append(buildKeyValue(tailKey, tailValue, false));

        String oriSign = SignUtils.sign(authInfo.toString(), rsaKey);
        String encodedSign = "";

        try {
            encodedSign = URLEncoder.encode(oriSign, "UTF-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return "sign=" + encodedSign;
    }

    /**
     * 要求外部訂單號必須唯一。
     * @return
     */
    private static String getOutTradeNo() {
        SimpleDateFormat format = new SimpleDateFormat("MMddHHmmss", Locale.getDefault());
        Date date = new Date();
        String key = format.format(date);

        Random r = new Random();
        key = key + r.nextInt();
        key = key.substring(0, 15);
        return key;
    }

}