| | |
| | | import cn.hutool.core.util.StrUtil; |
| | | import cn.hutool.http.HttpUtil; |
| | | import com.alibaba.fastjson.JSONObject; |
| | | import lombok.extern.slf4j.Slf4j; |
| | | import org.bouncycastle.jcajce.provider.digest.SHA3; |
| | | import org.web3j.abi.FunctionEncoder; |
| | | import org.web3j.abi.FunctionReturnDecoder; |
| | |
| | | * @author wzy |
| | | * @date 2022-04-15 |
| | | **/ |
| | | @Slf4j |
| | | public class EthService implements ContractChainService { |
| | | |
| | | private Web3j web3j; |
| | |
| | | String encodedFunction = FunctionEncoder.encode(function); |
| | | RawTransaction rawTransaction = RawTransaction.createTransaction(nonce, |
| | | Convert.toWei(gas, Convert.Unit.GWEI).toBigInteger(), |
| | | Convert.toWei("1000000", Convert.Unit.WEI).toBigInteger(), contractAddress, encodedFunction); |
| | | Convert.toWei("500000", Convert.Unit.WEI).toBigInteger(), contractAddress, encodedFunction); |
| | | |
| | | byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials); |
| | | String hexValue = Numeric.toHexString(signedMessage); |
| | | |
| | | CompletableFuture<EthSendTransaction> ethSendTransactionCompletableFuture = web3j.ethSendRawTransaction(hexValue).sendAsync(); |
| | | EthSendTransaction ethSendTransaction = ethSendTransactionCompletableFuture.get(); |
| | | |
| | | if (ethSendTransaction.hasError()) { |
| | | log.info("card:{}", JSONObject.toJSONString(ethSendTransaction)); |
| | | return ""; |
| | | } else { |
| | | return ethSendTransaction.getTransactionHash(); |