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Legacy Account Key

AccountKeyLegacy

从 Web3j 和 kaia 库(web3j-ext)中导入必要的类。

从私人密钥创建证书

使用指定的 BAOBAB_URL 创建 Web3j 实例

此外,您还可以更改默认提供商。 例如,使用alchemy提供商。

燃气价格gas 限值设置

从网络中获取链 ID

获取发件人地址的nonce

生成新账户密钥用于账户更新

将交易类型设为 ACCOUNT_UPDATE

创建原始交易用于账户更新

签署交易

签署的交易发送至 kaia 网络

等待交易完成并获取交易收据

关闭 Web3j 实例

解码原始交易以获取交易类型

AccountUpdateWithLegacyExample.java

package org.web3j.example.accountKey;
import org.web3j.tx.response.PollingTransactionReceiptProcessor;
import org.web3j.tx.response.TransactionReceiptProcessor;
import org.web3j.example.keySample;
import java.io.IOException;
import java.math.BigInteger;
import org.web3j.crypto.KlayCredentials;
import org.web3j.crypto.KlayRawTransaction;
import org.web3j.crypto.KlayTransactionEncoder;
import org.web3j.crypto.transaction.account.AccountKeyLegacy;
import org.web3j.crypto.transaction.type.TxType;
import org.web3j.crypto.transaction.type.TxTypeAccountUpdate;
import org.web3j.crypto.transaction.type.TxType.Type;
import org.web3j.protocol.core.DefaultBlockParameterName;
import org.web3j.protocol.core.methods.response.EthChainId;
import org.web3j.protocol.core.methods.response.EthSendTransaction;
import org.web3j.protocol.kaia.Web3j;
import org.web3j.protocol.http.HttpService;
import org.web3j.utils.Numeric;
import org.web3j.protocol.kaia.core.method.response.TransactionReceipt;
public class AccountUpdateWithLegacyExample {
public static void run() throws Exception {
KlayCredentials credentials = KlayCredentials.create(keySample.LEGACY_KEY_privkey);
Web3j web3j = Web3j.build(new HttpService(keySample.BAOBAB_URL));
BigInteger GAS_PRICE = BigInteger.valueOf(50000000000L);
BigInteger GAS_LIMIT = BigInteger.valueOf(6721950);
String from = credentials.getAddress();
EthChainId EthchainId = web3j.ethChainId().send();
long chainId = EthchainId.getChainId().longValue();
BigInteger nonce = web3j.ethGetTransactionCount(from, DefaultBlockParameterName.LATEST).send()
.getTransactionCount();
AccountKeyLegacy accountkey = AccountKeyLegacy.create();
TxType.Type type = Type.ACCOUNT_UPDATE;
KlayRawTransaction raw = KlayRawTransaction.createTransaction(
type,
nonce,
GAS_PRICE,
GAS_LIMIT,
from,
accountkey);
byte[] signedMessage = KlayTransactionEncoder.signMessage(raw, chainId, credentials);
String hexValue = Numeric.toHexString(signedMessage);
EthSendTransaction transactionResponse = web3j.ethSendRawTransaction(hexValue).send();
System.out.println("TxHash : \n " + transactionResponse.getResult());
String txHash = transactionResponse.getResult();
int DEFAULT_POLLING_ATTEMPTS_PER_TX_HASH = 40;
int DEFAULT_BLOCK_TIME = 1 * 1000;
long DEFAULT_POLLING_FREQUENCY = DEFAULT_BLOCK_TIME;
TransactionReceiptProcessor transactionReceiptProcessor = new PollingTransactionReceiptProcessor(web3j,
DEFAULT_POLLING_FREQUENCY, DEFAULT_POLLING_ATTEMPTS_PER_TX_HASH);
org.web3j.protocol.core.methods.response.TransactionReceipt ethReceipt = transactionReceiptProcessor
.waitForTransactionReceipt(txHash);
System.out.println("Receipt from eth_getTransactionReceipt : \n" + ethReceipt);
TransactionReceipt receipt = web3j.klayGetTransactionReceipt(txHash).send().getResult();
System.out.println("Receipt from klay_getTransactionReceipt : \n" + receipt);
web3j.shutdown();
TxTypeAccountUpdate rawTransaction = TxTypeAccountUpdate.decodeFromRawTransaction(signedMessage);
System.out.println("TxType : " + rawTransaction.getKlayType());
}
}

output

❯ java AccountUpdateWithLegacyExample.java
TxHash :
0x7b435e127119d8ee2edf8d49377ed150e4579cc3c991e0272a519a5d7f3f17b2
Receipt from eth_getTransactionReceipt :
TransactionReceipt{transactionHash='0x7b435e127119d8ee2edf8d49377ed150e4579cc3c991e0272a519a5d7f3f17b2', transactionIndex='0x1', blockHash='0xc1d491e001410664e0a1e68c20d69890a587dede6beae43c20fa1899935425ba', blockNumber='0x90e59b5', cumulativeGasUsed='0x3240d', gasUsed='0x5208', contractAddress='null', root='null', status='0x1', from='0xa2a8854b1802d8cd5de631e690817c253d6a9153', to='0xa2a8854b1802d8cd5de631e690817c253d6a9153', logs=[], logsBloom='0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', revertReason='null', type='0x0', effectiveGasPrice='0x5d21dba00'}
Receipt from klay_getTransactionReceipt :
class TransactionReceipt {
blockHash: 0xc1d491e001410664e0a1e68c20d69890a587dede6beae43c20fa1899935425ba
blockNumber: 0x90e59b5
codeFormat: null
contractAddress: null
feePayer: null
feePayerSignatures: []
feeRatio: null
from: 0xa2a8854b1802d8cd5de631e690817c253d6a9153
gas: 0x66919e
effectiveGasPrice: 0x5d21dba00
gasPrice: 0xba43b7400
gasUsed: 0x5208
humanReadable: null
key: 0x01c0
input: null
logs: []
logsBloom: 0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
nonce: 0x3e8
senderTxHash: 0x7b435e127119d8ee2edf8d49377ed150e4579cc3c991e0272a519a5d7f3f17b2
signature: []
status: 0x1
txError: null
to: null
transactionHash: 0x7b435e127119d8ee2edf8d49377ed150e4579cc3c991e0272a519a5d7f3f17b2
transactionIndex: 0x1
type: TxTypeAccountUpdate
typeInt: 32
value: null
}
TxType : ACCOUNT_UPDATE

让这个页面变得更好