Web3j Transfer.sendFunds() 返回错误 "insufficient funds for gas * price + value"

Question

在我的私有测试区块链中使用web3j lib进行区块链交易时，我目前遇到了标题为响应错误：*天然气资金不足*价格+价值*

我想从中转移一些以太币的账户余额为 10000 以太币。我注销的gas价格的值为18000000000作为BigInt(它是WEI？(，gas限制是web3j使用的默认值，值为21000。

所以问题是为什么我得到的交易不起作用？我想转移 10 以太币，例如：

TransactionReceipt transactionReceipt = Transfer.sendFunds(web3, credentials, toAccount, BigDecimal.valueOf(10.0), Convert.Unit.ETHER).send();

更多详情

创世文件如下所示：

{
  "config": {
      "chainId": 9999,
      "homesteadBlock": 0,
      "eip155Block": 0,
      "eip158Block": 0,
      "byzantiumBlock": 0
   },
   "difficulty": "400",
   "gasLimit": "2100000",
   "alloc": {
      "0x9b6301bf2cfe11066dbd641f91a2b82e0783130e": { 
          "balance": "100000000000000000000000" 
      }
   }
}

代码如下所示：

// create new account 
Admin admin = Admin.build(new HttpService());
NewAccountIdentifier newAccount = admin.personalNewAccount("PASSWORD").send();
// get current created account
Web3j web3 = Web3.build(new HttpService());
EthAccounts accounts = web3.ethAccounts().send();
String lastAccount = Iterables.getLast(accounts.getAccounts());
// get creadentials for the first account having some ether
String firstAccount = web3.ethAccounts().send().getAccounts().get(0);
Credentials credentials = Credentials.create(firstAccount);
// get current balance for first account
EthGetBalance balance = admin.ethGetBalance(firstAccount, DefaultBlockParameterName.LATEST).send();
BigDecimal balanceVaue = Convert.fromWei(balance.getBalance().toString(), Convert.Unit.ETHER);
// create transaction to give the new created account some ether from the first one
// log some stuff
System.out.println("Account: " + firstAccount);
System.out.println("Account balance: " + balanceVaue);
System.out.println("Gas Price admin.ethGasPrice() in Ether: " + Convert.fromWei(gasPrice.toString(), Convert.Unit.ETHER));
System.out.println("Transfer Gas Limit in Ether: " + Convert.fromWei(Transfer.GAS_LIMIT.toString(), Convert.Unit.ETHER));
System.out.println("Transfer Gas Price in Ether: " + Convert.fromWei(Transfer.GAS_PRICE.toString(), Convert.Unit.ETHER));
TransactionReceipt transactionReceipt = Transfer.sendFunds(web3, credentials, lastAccount, BigDecimal.valueOf(10.0), Convert.Unit.ETHER).send();
String transactionHash = transactionReceipt.getTransactionHash();

这导致了上述交易错误：gas资金不足*价格+价值

以下是日志记录输出：

Account: 0x9b6301bf2cfe11066dbd641f91a2b82e0783130e
Account balance: 100000
Gas Price admin.ethGasPrice() in Ether: 1.8E-8
Transfer Gas Limit in Ether: 2.1E-14
Transfer Gas Price in Ether: 2.2E-8
Funds transfer triggered ...

Answer 1

您的Credentials对象不正确。您使用的方法是期待私钥，而不是以太坊地址。

Credentials credentials = Credentials.create(firstAccount);

应该是

Credentials credentials = Credentials.create("<PRIVATE_KEY_HERE>");