org.web3j.utils.Numeric.toHexString()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中org.web3j.utils.Numeric.toHexString()方法的一些代码示例，展示了Numeric.toHexString()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.toHexString()方法的具体详情如下：
包路径：org.web3j.utils.Numeric
类名称：Numeric
方法名：toHexString

Numeric.toHexString介绍

暂无

代码示例

代码示例来源：origin: web3j/web3j

  1. public static String toHexString(byte[] input) {
  2.   return toHexString(input, 0, input.length, true);
  3. }

代码示例来源：origin: web3j/web3j

  1. public static String toHexStringNoPrefix(byte[] input) {
  2.   return toHexString(input, 0, input.length, false);
  3. }

代码示例来源：origin: web3j/web3j

  1. public String asString() {
  2.   return Numeric.toHexString(value);
  3. }

代码示例来源：origin: web3j/web3j

  1. static String buildMethodId(String methodSignature) {
  2.     byte[] input = methodSignature.getBytes();
  3.     byte[] hash = Hash.sha3(input);
  4.     return Numeric.toHexString(hash).substring(0, 10);
  5.   }
  6. }

代码示例来源：origin: web3j/web3j

  1. /**
  2.  * Keccak-256 hash function that operates on a UTF-8 encoded String.
  3.  *
  4.  * @param utf8String UTF-8 encoded string
  5.  * @return hash value as hex encoded string
  6.  */
  7. public static String sha3String(String utf8String) {
  8.   return Numeric.toHexString(sha3(utf8String.getBytes(StandardCharsets.UTF_8)));
  9. }

代码示例来源：origin: web3j/web3j

  1. /**
  2.    * Utility method to provide the transaction hash for a given transaction.
  3.    *
  4.    * @param rawTransaction we wish to send
  5.    * @param chainId of the intended chain
  6.    * @param credentials of the sender
  7.    * @return transaction hash as a hex encoded string
  8.    */
  9.   public static String generateTransactionHashHexEncoded(
  10.       RawTransaction rawTransaction, byte chainId, Credentials credentials) {
  11.     return Numeric.toHexString(generateTransactionHash(rawTransaction, chainId, credentials));
  12.   }
  13. }

代码示例来源：origin: web3j/web3j

  1. public static String buildEventSignature(String methodSignature) {
  2.     byte[] input = methodSignature.getBytes();
  3.     byte[] hash = Hash.sha3(input);
  4.     return Numeric.toHexString(hash);
  5.   }
  6. }

代码示例来源：origin: web3j/web3j

  1. /**
  2.  * Utility method to provide the transaction hash for a given transaction.
  3.  *
  4.  * @param rawTransaction we wish to send
  5.  * @param credentials of the sender
  6.  * @return transaction hash as a hex encoded string
  7.  */
  8. public static String generateTransactionHashHexEncoded(
  9.     RawTransaction rawTransaction, Credentials credentials) {
  10.   return Numeric.toHexString(generateTransactionHash(rawTransaction, credentials));
  11. }

代码示例来源：origin: web3j/web3j

  1. public static String nameHash(String ensName) {
  2.   String normalisedEnsName = normalise(ensName);
  3.   return Numeric.toHexString(nameHash(normalisedEnsName.split("\\.")));
  4. }

代码示例来源：origin: web3j/web3j

  1. /**
  2.  * Keccak-256 hash function.
  3.  *
  4.  * @param hexInput hex encoded input data with optional 0x prefix
  5.  * @return hash value as hex encoded string
  6.  */
  7. public static String sha3(String hexInput) {
  8.   byte[] bytes = Numeric.hexStringToByteArray(hexInput);
  9.   byte[] result = sha3(bytes);
  10.   return Numeric.toHexString(result);
  11. }

代码示例来源：origin: web3j/web3j

  1. public String sign(RawTransaction rawTransaction) {
  2.   byte[] signedMessage;
  3.   if (chainId > ChainId.NONE) {
  4.     signedMessage = TransactionEncoder.signMessage(rawTransaction, chainId, credentials);
  5.   } else {
  6.     signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
  7.   }
  8.   return Numeric.toHexString(signedMessage);
  9. }

代码示例来源：origin: web3j/web3j

  1. public static String generateContractAddress(String address, BigInteger nonce) {
  2.     byte[] result = generateContractAddress(Numeric.hexStringToByteArray(address), nonce);
  3.     return Numeric.toHexString(result);
  4.   }
  5. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testToHexString() {
  3.   assertThat(Numeric.toHexString(new byte[] {}), is("0x"));
  4.   assertThat(Numeric.toHexString(new byte[] { 0x1 }), is("0x01"));
  5.   assertThat(Numeric.toHexString(HEX_RANGE_ARRAY), is(HEX_RANGE_STRING));
  6. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testSignMessage() {
  3.   byte[] signedMessage = TransactionEncoder.signMessage(
  4.       createEtherTransaction(), SampleKeys.CREDENTIALS);
  5.   String hexMessage = Numeric.toHexString(signedMessage);
  6.   assertThat(hexMessage,
  7.       is("0xf85580010a840add5355887fffffffffffffff80"
  8.           + "1c"
  9.           + "a046360b50498ddf5566551ce1ce69c46c565f1f478bb0ee680caf31fbc08ab727"
  10.           + "a01b2f1432de16d110407d544f519fc91b84c8e16d3b6ec899592d486a94974cd0"));
  11. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testTransferEther() throws Exception {
  3.   BigInteger nonce = getNonce(ALICE.getAddress());
  4.   RawTransaction rawTransaction = createEtherTransaction(
  5.       nonce, BOB.getAddress());
  6.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, ALICE);
  7.   String hexValue = Numeric.toHexString(signedMessage);
  8.   EthSendTransaction ethSendTransaction =
  9.       web3j.ethSendRawTransaction(hexValue).sendAsync().get();
  10.   String transactionHash = ethSendTransaction.getTransactionHash();
  11.   assertFalse(transactionHash.isEmpty());
  12.   TransactionReceipt transactionReceipt =
  13.       waitForTransactionReceipt(transactionHash);
  14.   assertThat(transactionReceipt.getTransactionHash(), is(transactionHash));
  15. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testDeploySmartContract() throws Exception {
  3.   BigInteger nonce = getNonce(ALICE.getAddress());
  4.   RawTransaction rawTransaction = createSmartContractTransaction(nonce);
  5.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, ALICE);
  6.   String hexValue = Numeric.toHexString(signedMessage);
  7.   EthSendTransaction ethSendTransaction =
  8.       web3j.ethSendRawTransaction(hexValue).sendAsync().get();
  9.   String transactionHash = ethSendTransaction.getTransactionHash();
  10.   assertFalse(transactionHash.isEmpty());
  11.   TransactionReceipt transactionReceipt =
  12.       waitForTransactionReceipt(transactionHash);
  13.   assertThat(transactionReceipt.getTransactionHash(), is(transactionHash));
  14.   assertFalse("Contract execution ran out of gas",
  15.       rawTransaction.getGasLimit().equals(transactionReceipt.getGasUsed()));
  16. }

代码示例来源：origin: web3j/web3j

  1. private String execute(
  2.     Credentials credentials, Function function, String contractAddress) throws Exception {
  3.   BigInteger nonce = getNonce(credentials.getAddress());
  4.   String encodedFunction = FunctionEncoder.encode(function);
  5.   RawTransaction rawTransaction = RawTransaction.createTransaction(
  6.       nonce,
  7.       GAS_PRICE,
  8.       GAS_LIMIT,
  9.       contractAddress,
  10.       encodedFunction);
  11.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
  12.   String hexValue = Numeric.toHexString(signedMessage);
  13.   EthSendTransaction transactionResponse = web3j.ethSendRawTransaction(hexValue)
  14.       .sendAsync().get();
  15.   return transactionResponse.getTransactionHash();
  16. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testSignTransaction() throws Exception {
  3.   boolean accountUnlocked = unlockAccount();
  4.   assertTrue(accountUnlocked);
  5.   RawTransaction rawTransaction = createTransaction();
  6.   byte[] encoded = TransactionEncoder.encode(rawTransaction);
  7.   byte[] hashed = Hash.sha3(encoded);
  8.   EthSign ethSign = web3j.ethSign(ALICE.getAddress(), Numeric.toHexString(hashed))
  9.       .sendAsync().get();
  10.   String signature = ethSign.getSignature();
  11.   assertNotNull(signature);
  12.   assertFalse(signature.isEmpty());
  13. }

代码示例来源：origin: web3j/web3j

  1. private String sendCreateContractTransaction(
  2.     Credentials credentials, BigInteger initialSupply) throws Exception {
  3.   BigInteger nonce = getNonce(credentials.getAddress());
  4.   String encodedConstructor =
  5.       FunctionEncoder.encodeConstructor(
  6.           Arrays.asList(
  7.               new Uint256(initialSupply),
  8.               new Utf8String("web3j tokens"),
  9.               new Uint8(BigInteger.TEN),
  10.               new Utf8String("w3j$")));
  11.   RawTransaction rawTransaction = RawTransaction.createContractTransaction(
  12.       nonce,
  13.       GAS_PRICE,
  14.       GAS_LIMIT,
  15.       BigInteger.ZERO,
  16.       getHumanStandardTokenBinary() + encodedConstructor);
  17.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
  18.   String hexValue = Numeric.toHexString(signedMessage);
  19.   EthSendTransaction transactionResponse = web3j.ethSendRawTransaction(hexValue)
  20.       .sendAsync().get();
  21.   return transactionResponse.getTransactionHash();
  22. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testDecoding() throws Exception {
  3.   BigInteger nonce = BigInteger.ZERO;
  4.   BigInteger gasPrice = BigInteger.ONE;
  5.   BigInteger gasLimit = BigInteger.TEN;
  6.   String to = "0x0add5355";
  7.   BigInteger value = BigInteger.valueOf(Long.MAX_VALUE);
  8.   RawTransaction rawTransaction = RawTransaction.createEtherTransaction(
  9.       nonce, gasPrice, gasLimit, to, value);
  10.   byte[] encodedMessage = TransactionEncoder.encode(rawTransaction);
  11.   String hexMessage = Numeric.toHexString(encodedMessage);
  12.   RawTransaction result = TransactionDecoder.decode(hexMessage);
  13.   assertNotNull(result);
  14.   assertEquals(nonce, result.getNonce());
  15.   assertEquals(gasPrice, result.getGasPrice());
  16.   assertEquals(gasLimit, result.getGasLimit());
  17.   assertEquals(to, result.getTo());
  18.   assertEquals(value, result.getValue());
  19.   assertEquals("", result.getData());
  20. }

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