本文整理了Java中org.web3j.utils.Numeric.prependHexPrefix()方法的一些代码示例，展示了Numeric.prependHexPrefix()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Numeric.prependHexPrefix()方法的具体详情如下：
包路径：org.web3j.utils.Numeric
类名称：Numeric
方法名：prependHexPrefix

Numeric.prependHexPrefix介绍

暂无

代码示例

代码示例来源：origin: web3j/web3j

public Transaction(String from, BigInteger nonce, BigInteger gasPrice, BigInteger gasLimit,
          String to, BigInteger value, String data) {
  this.from = from;
  this.to = to;
  this.gas = gasLimit;
  this.gasPrice = gasPrice;
  this.value = value;
  if (data != null) {
    this.data = Numeric.prependHexPrefix(data);
  }
  this.nonce = nonce;
}

代码示例来源：origin: web3j/web3j

public static Credentials create(ECKeyPair ecKeyPair) {
  String address = Numeric.prependHexPrefix(Keys.getAddress(ecKeyPair));
  return new Credentials(ecKeyPair, address);
}

代码示例来源：origin: web3j/web3j

@Test
public void testPrependHexPrefix() {
  assertThat(Numeric.prependHexPrefix(""), is("0x"));
  assertThat(Numeric.prependHexPrefix("0x0123456789abcdef"), is("0x0123456789abcdef"));
  assertThat(Numeric.prependHexPrefix("0x"), is("0x"));
  assertThat(Numeric.prependHexPrefix("0123456789abcdef"), is("0x0123456789abcdef"));
}

代码示例来源：origin: web3j/web3j

@SuppressWarnings("unchecked")
private void prepareEthGetCode(String binary) throws IOException {
  EthGetCode ethGetCode = new EthGetCode();
  ethGetCode.setResult(Numeric.prependHexPrefix(binary));
  Request<?, EthGetCode> ethGetCodeRequest = mock(Request.class);
  when(ethGetCodeRequest.send())
      .thenReturn(ethGetCode);
  when(web3j.ethGetCode(ADDRESS, DefaultBlockParameterName.LATEST))
      .thenReturn((Request) ethGetCodeRequest);
}

代码示例来源：origin: web3j/web3j

@Test
public void testIsValidPrivateKey() {
  assertTrue(isValidPrivateKey(SampleKeys.PRIVATE_KEY_STRING));
  assertTrue(isValidPrivateKey(Numeric.prependHexPrefix(SampleKeys.PRIVATE_KEY_STRING)));
  assertFalse(isValidPrivateKey(""));
  assertFalse(isValidPrivateKey(SampleKeys.PRIVATE_KEY_STRING + "a"));
  assertFalse(isValidPrivateKey(SampleKeys.PRIVATE_KEY_STRING.substring(1)));
}

代码示例来源：origin: org.web3j/crypto

public static Credentials create(ECKeyPair ecKeyPair) {
  String address = Numeric.prependHexPrefix(Keys.getAddress(ecKeyPair));
  return new Credentials(ecKeyPair, address);
}

代码示例来源：origin: ethjava/web3j-sample

private static void decodeMessage(String signedData) {
  //样例 https://ropsten.etherscan.io/tx/0xfd8acd10d72127f29f0a01d8bcaf0165665b5598781fe01ca4bceaa6ab9f2cb0
  try {
    System.out.println(signedData);
    System.out.println("解密 start " + System.currentTimeMillis());
    RlpList rlpList = RlpDecoder.decode(Numeric.hexStringToByteArray(signedData));
    List<RlpType> values = ((RlpList) rlpList.getValues().get(0)).getValues();
    BigInteger nonce = Numeric.toBigInt(((RlpString) values.get(0)).getBytes());
    BigInteger gasPrice = Numeric.toBigInt(((RlpString) values.get(1)).getBytes());
    BigInteger gasLimit = Numeric.toBigInt(((RlpString) values.get(2)).getBytes());
    String to = Numeric.toHexString(((RlpString) values.get(3)).getBytes());
    BigInteger value = Numeric.toBigInt(((RlpString) values.get(4)).getBytes());
    String data = Numeric.toHexString(((RlpString) values.get(5)).getBytes());
    RawTransaction rawTransaction = RawTransaction.createTransaction(nonce, gasPrice, gasLimit, to, value, data);
    RlpString v = (RlpString) values.get(6);
    RlpString r = (RlpString) values.get(7);
    RlpString s = (RlpString) values.get(8);
    Sign.SignatureData signatureData = new Sign.SignatureData(
        v.getBytes()[0],
        Numeric.toBytesPadded(Numeric.toBigInt(r.getBytes()), 32),
        Numeric.toBytesPadded(Numeric.toBigInt(s.getBytes()), 32));
    BigInteger pubKey = Sign.signedMessageToKey(TransactionEncoder.encode(rawTransaction), signatureData);
    System.out.println("publicKey " + pubKey.toString(16));
    String address = Numeric.prependHexPrefix(Keys.getAddress(pubKey));
    System.out.println("address " + address);
    System.out.println("解密 end " + System.currentTimeMillis());
  } catch (Exception e) {
    e.printStackTrace();
  }
}