Error processing request:unknown transaction

这个问题应该发生在TransactionReceiptProcessor内部。

当调用web3j.ethGetTransactionReceipt(transactionHash).send()时内部会执行waitForTransactionReceipt。

你的节点可能还没有彻底准备好，无法给你提供一个有效的TransactionReceipt。

你可以通过手动构建交易来解决这个问题：

Web3j web3 = Web3j.build(new HttpService()); // defaults to http://localhost:8545/ Credentials credentials = WalletUtils.loadCredentials("password", "/path/to/walletfile");

// get the next available nonce EthGetTransactionCount ethGetTransactionCount = web3j.ethGetTransactionCount( address, DefaultBlockParameterName.LATEST).sendAsync().get(); BigInteger nonce = ethGetTransactionCount.getTransactionCount();

// create our transaction RawTransaction rawTransaction = RawTransaction.createEtherTransaction( nonce, , , , );

// sign & send our transaction byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials); String hexValue = Hex.toHexString(signedMessage); // FROM here you can get the tx hash. EthSendTransaction ethSendTransaction = web3j.ethSendRawTransaction(hexValue).send();

虽然可以使用自定义的交易管理器，但尽量尝试更改轮询的次数来增加获得txhash的概率。

public static final int DEFAULT_POLLING_ATTEMPTS_PER_TX_HASH = 40; public static final long DEFAULT_POLLING_FREQUENCY = 1000 * 15;

例如：

new Transfer(client, new ClientTransactionManager(client ,fromAddress, 100))

另外一个明确的方法：

 val txManager  = new RawTransactionManager(client,credentials,100,1000 * 15)
 val transfer   = new Transfer(client,txManager)

 transfer.sendFunds(
     walletAddress,
     amount,
     currency.convert)