Paytm集成问题: android和nodejs上的校验和无效

// 示例：Node.js中使用Paytm校验和库
const checksum = require('paytmchecksum');

const paytmParams = {
    MID: "YOUR_MERCHANT_ID",
    ORDER_ID: "ORDER12345",
    CUST_ID: "CUST123",
    TXN_AMOUNT: "100.00",
    CHANNEL_ID: "WEB",
    INDUSTRY_TYPE_ID: "Retail",
    WEBSITE: "WEBSTAGING",
    CALLBACK_URL: "https://securegw.paytm.in/theia/paytmCallback?ORDER_ID=ORDER12345"
};

const checksumHash = checksum.generateSignature(paytmParams, 'YOUR_MERCHANT_KEY');
console.log("Checksum Hash:", checksumHash);

// 示例：Android中使用Paytm校验和库
Map<String, String> params = new HashMap<>();
params.put("MID", "YOUR_MERCHANT_ID");
params.put("ORDER_ID", "ORDER12345");
params.put("CUST_ID", "CUST123");
params.put("TXN_AMOUNT", "100.00");
params.put("CHANNEL_ID", "WEB");
params.put("INDUSTRY_TYPE_ID", "Retail");
params.put("WEBSITE", "WEBSTAGING");
params.put("CALLBACK_URL", "https://securegw.paytm.in/theia/paytmCallback?ORDER_ID=ORDER12345");

String checksum = PaytmChecksum.generateSignature(params, "YOUR_MERCHANT_KEY");
Log.d("Checksum", checksum);

// 示例：Node.js中确保UTF-8编码
const utf8 = require('utf8');

const paytmParams = {
    // ... 其他参数
    CALLBACK_URL: utf8.encode("https://securegw.paytm.in/theia/paytmCallback?ORDER_ID=ORDER12345")
};

# 示例：更新Node.js中的Paytm校验和库
npm update paytmchecksum