部署智能合約時資金不足錯誤

我正在編寫一個 Java 程序來部署智能合約。我創建了 Java Wrapper 類。這就是程式碼的本質。

static final BigInteger GAS_PRICE = BigInteger.valueOf(20_000_000_000L);
static final BigInteger GAS_LIMIT = BigInteger.valueOf(4_300_000);
Credentials creds = WalletUtils.loadCredentials(password,
           pathtowalletfile);
Greeter contract = Greeter.deploy(web3j, creds, GAS_PRICE, GAS_LIMIT, BigInteger.ZERO, new Utf8String("Hello")).get();

當我執行我的程序時，我收到了這個錯誤

處理交易請求時出錯：gas * price + value 資金不足

我必須說我對乙太坊和 web3j 很陌生。我的 geth 版本是 1.6.0-stable-facc47cb

任何幫助將非常感激。

已更新契約

contract mortal {
   address owner;

   function mortal()  { owner = msg.sender; }
   function kill() { if(msg.sender == owner) suicide(owner); }
}

contract greeter is mortal {
   string greeting;

   function greeter(string _greeting) public {
       greeting = _greeting;
   }

   function greet() constant returns (string) {
       return greeting;
   }
}

我建議你定義氣體值（更高的值）：

static final BigInteger GAS = BigInteger.valueOf(30_000);


Greeter contract = Greeter.deploy(web3j, creds, GAS, GAS_PRICE, GAS_LIMIT, BigInteger.ZERO, new Utf8String("Hello")).get();

引用自：https://ethereum.stackexchange.com/questions/15819