本文整理了Java中com.google.common.hash.Hashing.sha256()方法的一些代码示例，展示了Hashing.sha256()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。Hashing.sha256()方法的具体详情如下：
包路径：com.google.common.hash.Hashing
类名称：Hashing
方法名：sha256

Hashing.sha256介绍

[英]Returns a hash function implementing the SHA-256 algorithm (256 hash bits).
[中]返回实现SHA-256算法的哈希函数（256个哈希位）。

代码示例

代码示例来源：origin: Graylog2/graylog2-server

/**
   * Generate an "anonymized" node ID for use with external services. Currently it just hashes the actual node ID
   * using SHA-256.
   *
   * @return The anonymized ID derived from hashing the node ID.
   */
  public String anonymize() {
    return Hashing.sha256().hashString(id, StandardCharsets.UTF_8).toString();
  }
}

代码示例来源：origin: apache/incubator-gobblin

/**
  * If url for schema already exists, return the url. If not create a new temporary schema file and return a the url.
  */
 private Path getOrGenerateSchemaFile(Schema schema) throws IOException {

  Preconditions.checkNotNull(schema, "Avro Schema should not be null");

  String hashedSchema = Hashing.sha256().hashString(schema.toString(), StandardCharsets.UTF_8).toString();

  if (!this.schemaPaths.containsKey(hashedSchema)) {

   Path schemaFilePath = new Path(this.schemaDir, String.valueOf(System.currentTimeMillis() + ".avsc"));
   AvroUtils.writeSchemaToFile(schema, schemaFilePath, fs, true);

   this.schemaPaths.put(hashedSchema, schemaFilePath);
  }

  return this.schemaPaths.get(hashedSchema);
 }
}

代码示例来源：origin: google/guava

public void testSha256() {
 HashTestUtils.checkAvalanche(Hashing.sha256(), 100, 0.4);
 HashTestUtils.checkNo2BitCharacteristics(Hashing.sha256());
 HashTestUtils.checkNoFunnels(Hashing.sha256());
 HashTestUtils.assertInvariants(Hashing.sha256());
 assertEquals("Hashing.sha256()", Hashing.sha256().toString());
}

代码示例来源：origin: uber/okbuck

public static String shaSum256(File file) {
 try {
  return Files.asByteSource(file).hash(Hashing.sha256()).toString();
 } catch (IOException e) {
  throw new RuntimeException(String.format("Failed to calculate shaSum256 of %s", file));
 }
}

代码示例来源：origin: atomix/atomix

/**
 * Creates a snapshot ID from the given string.
 *
 * @param id the string from which to create the identifier
 * @return the snapshot identifier
 */
public static PrimitiveId from(String id) {
 return from(Hashing.sha256().hashString(id, StandardCharsets.UTF_8).asLong());
}

代码示例来源：origin: jooby-project/jooby

private void onSyncPackageJson(Config conf, Path workDirectory, Throwing.Consumer<String> action)
  throws IOException {
 Path tmp = Paths.get(conf.getString("application.tmpdir"), "package.json");
 Files.createDirectories(tmp);
 String sha1 = Hashing.sha256()
   .hashBytes(Files.readAllBytes(workDirectory.resolve("package.json")))
   .toString();
 Path lastSha1 = tmp.resolve(sha1);
 if (!Files.exists(lastSha1) || !Files.exists(workDirectory.resolve("node_modules"))) {
  action.accept("install");
  Try.of(Files.walk(tmp))
    .run(files -> files.filter(f -> !f.equals(tmp)).forEach(throwingConsumer(Files::deleteIfExists)));
  Files.write(tmp.resolve(lastSha1), Arrays.asList(""));
 }
}

代码示例来源：origin: atomix/atomix

/**
 * Returns the partition for the given key.
 *
 * @param key the key for which to return the partition
 * @return the partition for the given key
 */
default Partition getPartition(String key) {
 int hashCode = Hashing.sha256().hashString(key, StandardCharsets.UTF_8).asInt();
 return getPartition(getPartitionIds().get(Math.abs(hashCode) % getPartitionIds().size()));
}

代码示例来源：origin: googleapis/google-cloud-java

private static void setEncryptionHeaders(
  HttpHeaders headers, String headerPrefix, Map<Option, ?> options) {
 String key = Option.CUSTOMER_SUPPLIED_KEY.getString(options);
 if (key != null) {
  BaseEncoding base64 = BaseEncoding.base64();
  HashFunction hashFunction = Hashing.sha256();
  headers.set(headerPrefix + "algorithm", "AES256");
  headers.set(headerPrefix + "key", key);
  headers.set(
    headerPrefix + "key-sha256",
    base64.encode(hashFunction.hashBytes(base64.decode(key)).asBytes()));
 }
}

代码示例来源：origin: runelite/runelite

@Override
public void run()
{
  byte[] hash = Hashing.sha256().hashBytes(data).asBytes();
  String hashStr = BaseEncoding.base16().encode(hash);
  archive.setHash(hash);
  String path = new StringBuilder()
    .append(hashStr.substring(0, 2))
    .append('/')
    .append(hashStr.substring(2))
    .toString();
  try
  {
    try (InputStream in = minioClient.getObject(minioBucket, path))
    {
      return; // already exists
    }
    catch (ErrorResponseException ex)
    {
      // doesn't exist
    }
    minioClient.putObject(minioBucket, path, new ByteArrayInputStream(data), data.length, "binary/octet-stream");
  }
  catch (ErrorResponseException | InsufficientDataException | InternalException | InvalidArgumentException | InvalidBucketNameException | NoResponseException | IOException | InvalidKeyException | NoSuchAlgorithmException | XmlPullParserException ex)
  {
    logger.warn("unable to upload data to store", ex);
  }
}

代码示例来源：origin: prestodb/presto

@Description("compute sha256 hash")
@ScalarFunction
@SqlType(StandardTypes.VARBINARY)
public static Slice sha256(@SqlType(StandardTypes.VARBINARY) Slice slice)
{
  return Slices.wrappedBuffer(Hashing.sha256().hashBytes(slice.getBytes()).asBytes());
}

代码示例来源：origin: prestodb/presto

public static Model deserialize(Slice slice)
{
  int version = slice.getInt(VERSION_OFFSET);
  checkArgument(version == CURRENT_FORMAT_VERSION, format("Unsupported version: %d", version));
  byte[] modelHashBytes = slice.getBytes(HASH_OFFSET, 32);
  HashCode expectedHash = HashCode.fromBytes(modelHashBytes);
  HashCode actualHash = Hashing.sha256().hashBytes(slice.getBytes(ALGORITHM_OFFSET, slice.length() - ALGORITHM_OFFSET));
  checkArgument(actualHash.equals(expectedHash), "model hash does not match data");
  int id = slice.getInt(ALGORITHM_OFFSET);
  Class<? extends Model> algorithm = MODEL_SERIALIZATION_IDS.inverse().get(id);
  requireNonNull(algorithm, format("Unsupported algorith %d", id));
  int hyperparameterLength = slice.getInt(HYPERPARAMETER_LENGTH_OFFSET);
  byte[] hyperparameterBytes = slice.getBytes(HYPERPARAMETERS_OFFSET, hyperparameterLength);
  int dataLengthOffset = HYPERPARAMETERS_OFFSET + hyperparameterLength;
  long dataLength = slice.getLong(dataLengthOffset);
  int dataOffset = dataLengthOffset + SIZE_OF_LONG;
  byte[] data = slice.getBytes(dataOffset, (int) dataLength);
  try {
    Method deserialize = algorithm.getMethod("deserialize", byte[].class);
    return (Model) deserialize.invoke(null, new Object[] {data});
  }
  catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: google/guava

public void testToString() {
 assertEquals("Hashing.md5()", Hashing.md5().toString());
 assertEquals("Hashing.sha1()", Hashing.sha1().toString());
 assertEquals("Hashing.sha256()", Hashing.sha256().toString());
 assertEquals("Hashing.sha512()", Hashing.sha512().toString());
}

代码示例来源：origin: Graylog2/graylog2-server

final HashCode hashCode = Hashing.sha256().hashBytes(fileContents);
final EntityTag entityTag = new EntityTag(hashCode.toString());

代码示例来源：origin: Netflix/EVCache

hf = Hashing.sha256();
break;

代码示例来源：origin: prestodb/presto

slice.setBytes(dataOffset, data);
byte[] modelHash = Hashing.sha256().hashBytes(slice.getBytes(ALGORITHM_OFFSET, slice.length() - ALGORITHM_OFFSET)).asBytes();
checkState(modelHash.length == 32, "sha256 hash code expected to be 32 bytes");
slice.setBytes(HASH_OFFSET, modelHash);

代码示例来源：origin: runelite/runelite

HashCode rsDataHash = Hashing.sha256().hashBytes(rsData);

代码示例来源：origin: googleapis/google-cloud-java

if (key != null) {
 BaseEncoding base64 = BaseEncoding.base64();
 HashFunction hashFunction = Hashing.sha256();
 requestHeaders.set("x-goog-encryption-algorithm", "AES256");
 requestHeaders.set("x-goog-encryption-key", key);

代码示例来源：origin: apache/servicecomb-java-chassis

private String tryFindEnumType(List<String> enums) {
 if (enums != null && !enums.isEmpty()) {
  String strEnums = enums.toString();
  String enumName = "Enum_" + Hashing.sha256().hashString(strEnums, StandardCharsets.UTF_8).toString();
  pending.add(() -> createEnum(enumName, enums));
  return enumName;
 }
 return null;
}

代码示例来源：origin: apache/servicecomb-java-chassis

@SuppressWarnings("rawtypes")
public static Class<? extends Enum> getOrCreateEnumWithPackageName(ClassLoader classLoader, String packageName,
  List<String> enums) {
 String strEnums = enums.toString();
 String enumClsName =
   packageName + ".Enum_" + Hashing.sha256().hashString(strEnums, StandardCharsets.UTF_8).toString();
 return JavassistUtils.getOrCreateEnumWithClassName(classLoader, enumClsName, enums);
}

代码示例来源：origin: HubSpot/Singularity

private String createUniqueDeployId() {
 UUID id = UUID.randomUUID();
 String result = Hashing.sha256().newHasher().putLong(id.getLeastSignificantBits()).putLong(id.getMostSignificantBits()).hash().toString();
 return result.substring(0, deployIdLength);
}