本文整理了Java中java.util.Objects.toString()方法的一些代码示例，展示了Objects.toString()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。Objects.toString()方法的具体详情如下：
包路径：java.util.Objects
类名称：Objects
方法名：toString

Objects.toString介绍

[英]Returns "null" for null or o.toString().
[中]为null或o.toString（）返回“null”。

代码示例

代码示例来源：origin: MovingBlocks/Terasology

@Override
  public String toString(T value) {
    return Objects.toString(value);
  }
}

代码示例来源：origin: neo4j/neo4j

private static String getContext( WatchEvent<?> watchEvent )
  {
    return Objects.toString( watchEvent.context(), StringUtils.EMPTY );
  }
}

代码示例来源：origin: square/okhttp

@Override public String toString() {
 if (!tls) {
  return "ConnectionSpec()";
 }
 return "ConnectionSpec("
   + "cipherSuites=" + Objects.toString(cipherSuites(), "[all enabled]")
   + ", tlsVersions=" + Objects.toString(tlsVersions(), "[all enabled]")
   + ", supportsTlsExtensions=" + supportsTlsExtensions
   + ")";
}

代码示例来源：origin: MovingBlocks/Terasology

@Override
  public String getString(T value) {
    if (translationSystem == null) {
      return Objects.toString(value);
    } else {
      return translationSystem.translate(Objects.toString(value));
    }
  }
}

代码示例来源：origin: apache/incubator-druid

@Override
@Nullable
public String apply(@Nullable Object value)
{
 return apply(Objects.toString(value, null));
}

代码示例来源：origin: SonarSource/sonarqube

private void appendContext(StringBuilder sb) {
 for (Map.Entry<String, Object> entry : context.entrySet()) {
  if (sb.length() > 0) {
   sb.append(CONTEXT_SEPARATOR);
  }
  sb.append(entry.getKey()).append("=").append(Objects.toString(entry.getValue()));
 }
}

代码示例来源：origin: SonarSource/sonarqube

private void appendContext(StringBuilder sb) {
 for (Map.Entry<String, Object> entry : context.entrySet()) {
  if (sb.length() > 0) {
   sb.append(CONTEXT_SEPARATOR);
  }
  sb.append(entry.getKey()).append("=").append(Objects.toString(entry.getValue()));
 }
}

代码示例来源：origin: neo4j/neo4j

/**
 * Set the value of a system property.
 * <p>
 * The name of the system property is computed based on the provided class and local name.
 *
 * @param location the class that owns the flag.
 * @param name the local name of the flag.
 * @param value the value to assign to the system property.
 */
public static void set( Class<?> location, String name, Object value )
{
  System.setProperty( name( location, name ), Objects.toString( value ) );
}

代码示例来源：origin: SonarSource/sonarqube

static String format(String pattern, Object... args) {
  String result = pattern;
  for (Object arg : args) {
   result = StringUtils.replaceOnce(result, "{}", Objects.toString(arg));
  }
  return result;
 }
}

代码示例来源：origin: apache/hbase

/**
 * Dumps all cells of the segment into the given log
 */
void dump(Logger log) {
 for (Cell cell: getCellSet()) {
  log.debug(Objects.toString(cell));
 }
}

代码示例来源：origin: SonarSource/sonarqube

@Override
 public ProtobufSystemInfo.Section toProtobuf() {
  ProtobufSystemInfo.Section.Builder protobuf = ProtobufSystemInfo.Section.newBuilder();
  protobuf.setName(name);

  Map<Object, Object> sortedProperties = new TreeMap<>(System.getProperties());
  for (Map.Entry<Object, Object> systemProp : sortedProperties.entrySet()) {
   if (systemProp.getValue() != null) {
    setAttribute(protobuf, Objects.toString(systemProp.getKey()), Objects.toString(systemProp.getValue()));
   }
  }
  return protobuf.build();
 }
}

代码示例来源：origin: neo4j/neo4j

/**
 * Helps creating a JVM parameter for setting a feature toggle of an arbitrary type.
 * Given value will be converted to string using {@link Objects#toString(Object)} method.
 *
 * @param location the class that owns the flag.
 * @param name the local name of the flag.
 * @param value the value to assign to the feature toggle.
 * @return the parameter to pass to the command line of the forked JVM.
 */
public static String toggle( Class<?> location, String name, Object value )
{
  return toggle( name( location, name ), Objects.toString( value ) );
}

代码示例来源：origin: apache/hbase

/**
 * @param description description of the files for logging
 * @param storeFiles the status of the files to log
 */
private void logFiles(String description, FileStatus[] storeFiles) {
 LOG.debug("Current " + description + ": ");
 for (FileStatus file : storeFiles) {
  LOG.debug(Objects.toString(file.getPath()));
 }
}

代码示例来源：origin: neo4j/neo4j

@Override
public void close() throws IOException
{
  // We're done, do some final logging about it
  long totalTimeMillis = currentTimeMillis() - startTime;
  DataStatistics state = getState( DataStatistics.class );
  String additionalInformation = Objects.toString( state, "Data statistics is not available." );
  executionMonitor.done( successful, totalTimeMillis, format( "%n%s%nPeak memory usage: %s", additionalInformation, bytes( peakMemoryUsage ) ) );
  log.info( "Import completed successfully, took " + duration( totalTimeMillis ) + ". " + additionalInformation );
  closeAll( nodeRelationshipCache, nodeLabelsCache, idMapper );
}

代码示例来源：origin: ben-manes/caffeine

/** Free memory by clearing unused resources after test execution. */
 private void cleanUp(ITestResult testResult) {
  Object[] params = testResult.getParameters();
  for (int i = 0; i < params.length; i++) {
   Object param = params[i];
   if ((param instanceof AsyncLoadingCache<?, ?>) || (param instanceof Cache<?, ?>)
     || (param instanceof Map<?, ?>)) {
    params[i] = param.getClass().getSimpleName();
   } else {
    params[i] = Objects.toString(param);
   }
  }
  CacheSpec.interner.remove();
 }
}

代码示例来源：origin: org.apache.commons/commons-lang3

/**
 * Appends an array placing separators between each value, but
 * not before the first or after the last.
 * Appending a null array will have no effect.
 * Each object is appended using {@link #append(Object)}.
 *
 * @param array  the array to append
 * @param separator  the separator to use, null means no separator
 * @return this, to enable chaining
 */
public StrBuilder appendWithSeparators(final Object[] array, final String separator) {
  if (array != null && array.length > 0) {
    final String sep = Objects.toString(separator, "");
    append(array[0]);
    for (int i = 1; i < array.length; i++) {
      append(sep);
      append(array[i]);
    }
  }
  return this;
}

代码示例来源：origin: ben-manes/caffeine

/** Free memory by clearing unused resources after test execution. */
 static void cleanUp(ITestResult testResult) {
  Object[] params = testResult.getParameters();
  for (int i = 0; i < params.length; i++) {
   Object param = params[i];
   if ((param instanceof SingleConsumerQueue<?>)) {
    boolean linearizable =
      (((SingleConsumerQueue<?>) param).factory.apply(null) instanceof LinearizableNode<?>);
    params[i] = param.getClass().getSimpleName() + "_"
      + (linearizable ? "linearizable" : "optimistic");
   } else {
    params[i] = Objects.toString(param);
   }
  }
 }
}

代码示例来源：origin: apache/incubator-druid

@Override
public TopNResultBuilder addEntry(DimensionAndMetricValueExtractor dimensionAndMetricValueExtractor)
{
 Object dimensionValueObj = dimensionAndMetricValueExtractor.getDimensionValue(dimSpec.getOutputName());
 String dimensionValue = Objects.toString(dimensionValueObj, null);
 if (shouldAdd(dimensionValue)) {
  pQueue.add(
    new DimValHolder.Builder().withDimValue(dimensionValue)
                 .withMetricValues(dimensionAndMetricValueExtractor.getBaseObject())
                 .build()
  );
  if (pQueue.size() > threshold) {
   pQueue.poll();
  }
 }
 return this;
}

代码示例来源：origin: apache/hbase

protected void dumpBackupDir() throws IOException {
  // Dump Backup Dir
  FileSystem fs = FileSystem.get(conf1);
  RemoteIterator<LocatedFileStatus> it = fs.listFiles(new Path(BACKUP_ROOT_DIR), true);
  while (it.hasNext()) {
   LOG.debug(Objects.toString(it.next().getPath()));
  }
 }
}

代码示例来源：origin: apache/hbase

public FailedProcedure(long procId, String procName, User owner, NonceKey nonceKey,
  IOException exception) {
 this.procName = procName;
 setProcId(procId);
 setState(ProcedureState.ROLLEDBACK);
 setOwner(owner);
 setNonceKey(nonceKey);
 long currentTime = EnvironmentEdgeManager.currentTime();
 setSubmittedTime(currentTime);
 setLastUpdate(currentTime);
 setFailure(Objects.toString(exception.getMessage(), ""), exception);
}