發送原始交易以呼叫智能合約方法時出現問題？

let provider_url = 
"https://ropsten.infura.io/v3/d5bca90ec3084aee8abd468fdf876a11";

this.web3Provider = new Web3.providers.HttpProvider(provider_url);
window.web3_ = new Web3(this.web3Provider);

let account = "0x25bA673A96acadD7A02f4c5834Ba80C1AF6b7758";

         let nonce = window.web3_.toHex(window.web3_.eth.getTransactionCount(account));

         let myPrivateKey = "****";

         let privateKey = new Buffer(myPrivateKey, "hex");
         let functionName = "markAttendance";
         let types = ["address", "uint", "uint256"];
         let args = [attendeeAddress, opinion, date];
         let fullName = functionName + "(" + types.join() + ")";
         let signature = CryptoJS.SHA3(fullName, {outputLength: 256}).toString(CryptoJS.enc.Hex).slice(0, 8);
         let dataHex = signature + coder.encodeParams(types, args);
         let data = "0x" + dataHex;
         // let nonce = web3.toHex();
         let gasPrice = window.web3_.toHex(20000000000); // 20 Gwei
         let gasLimitHex = window.web3_.toHex(4700000);

         let rawTx = {
           'nonce': nonce,
           'gasPrice': gasPrice,
           'gasLimit': gasLimitHex,
           'from': account,
           'to': '0xf77c958bdffee94c3f53eb763cffd646cde336d9', 
           'data': data,
           'value': window.web3_.toHex(window.web3_.toWei("0.5", "ether")),
         }
         let tx = new Tx(rawTx);
         tx.sign(privateKey);
         tx.serialize();
         console.log(tx.validate());
         let serializedTx = '0x' + tx.serialize().toString('hex');
         console.log(serializedTx);
window.web3_.eth.sendRawTransaction(serializedTx, function (err, txHash) {
 console.log(err, txHash)
})

契約

contract MarkAttendance {

struct AttendeeDetails {
   address attendance_giver;
   address attendee;
   uint attendance_opinion;
   uint256 timestamp;
   uint256 date_of_attendance;
}

//mapping of structure  for storing the attendeeDetails
mapping(uint => AttendeeDetails) public attendeeDetails;
uint public attendeeDetailsCount;

function markAttendance(address _attendee, uint _attendance_opinion, uint256 _date) public {
   attendeeDetailsCount ++;
   attendeeDetails[attendeeDetailsCount] = AttendeeDetails(msg.sender, _attendee, _attendance_opinion, now, _date);
   }
}

我收到了 TXHASH，但每次都取消交易。我在做什麼可能是什麼問題？誰能建議我對此的任何解決方案。

如果我從松露控制台呼叫該方法，它工作正常。我得到了成功的交易收據。

請找到截圖

您的函式選擇器計算不正確。您正在使用"uint"而不是"uint256". （前者是後者的別名，但在計算函式選擇器時應始終使用後者。）

更改此行：

let types = ["address", "uint", "uint256"];

對此：

let types = ["address", "uint256", "uint256"];

編輯

您還將乙太幣附加到交易中，但您呼叫的函式不是payable，所以它不會接受乙太幣。要解決此問題，請刪除該value: ...行。

引用自：https://ethereum.stackexchange.com/questions/63805