本文整理了Java中org.web3j.crypto.Hash.sha3String()方法的一些代码示例，展示了Hash.sha3String()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。Hash.sha3String()方法的具体详情如下：
包路径：org.web3j.crypto.Hash
类名称：Hash
方法名：sha3String

Hash.sha3String介绍

[英]Keccak-256 hash function that operates on a UTF-8 encoded String.
[中]对UTF-8编码字符串进行操作的Keccak-256哈希函数。

代码示例

代码示例来源：origin: web3j/web3j

/**
 * Checksum address encoding as per
 * <a href="https://github.com/ethereum/EIPs/blob/master/EIPS/eip-55.md">EIP-55</a>.
 *
 * @param address a valid hex encoded address
 * @return hex encoded checksum address
 */
public static String toChecksumAddress(String address) {
  String lowercaseAddress = Numeric.cleanHexPrefix(address).toLowerCase();
  String addressHash = Numeric.cleanHexPrefix(Hash.sha3String(lowercaseAddress));
  StringBuilder result = new StringBuilder(lowercaseAddress.length() + 2);
  result.append("0x");
  for (int i = 0; i < lowercaseAddress.length(); i++) {
    if (Integer.parseInt(String.valueOf(addressHash.charAt(i)), 16) >= 8) {
      result.append(String.valueOf(lowercaseAddress.charAt(i)).toUpperCase());
    } else {
      result.append(lowercaseAddress.charAt(i));
    }
  }
  return result.toString();
}

代码示例来源：origin: web3j/web3j

@Test
public void testSha3String() {
  assertThat(Hash.sha3String(""),
      is("0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"));
  assertThat(Hash.sha3String("EVWithdraw(address,uint256,bytes32)"),
      is("0x953d0c27f84a9649b0e121099ffa9aeb7ed83e65eaed41d3627f895790c72d41"));
}

代码示例来源：origin: org.web3j/crypto

/**
 * Checksum address encoding as per
 * <a href="https://github.com/ethereum/EIPs/blob/master/EIPS/eip-55.md">EIP-55</a>.
 *
 * @param address a valid hex encoded address
 * @return hex encoded checksum address
 */
public static String toChecksumAddress(String address) {
  String lowercaseAddress = Numeric.cleanHexPrefix(address).toLowerCase();
  String addressHash = Numeric.cleanHexPrefix(Hash.sha3String(lowercaseAddress));
  StringBuilder result = new StringBuilder(lowercaseAddress.length() + 2);
  result.append("0x");
  for (int i = 0; i < lowercaseAddress.length(); i++) {
    if (Integer.parseInt(String.valueOf(addressHash.charAt(i)), 16) >= 8) {
      result.append(String.valueOf(lowercaseAddress.charAt(i)).toUpperCase());
    } else {
      result.append(lowercaseAddress.charAt(i));
    }
  }
  return result.toString();
}

代码示例来源：origin: eclipse/winery

contract.getContractAddress()).
  addSingleTopic(EventEncoder.encode(event)).
  addOptionalTopics(Hash.sha3String(identifier)).
  addNullTopic();
final CompletableFuture<List<ModelProvenanceElement>> result = new CompletableFuture<>();

代码示例来源：origin: eclipse/winery

contract.getContractAddress()).
addSingleTopic(EventEncoder.encode(event)).
addOptionalTopics(Hash.sha3String(identifier)).
addNullTopic().
addNullTopic();