本文整理了Java中org.springframework.integration.expression.ExpressionUtils类的一些代码示例，展示了ExpressionUtils类的具体用法。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。ExpressionUtils类的具体详情如下：
包路径：org.springframework.integration.expression.ExpressionUtils
类名称：ExpressionUtils

ExpressionUtils介绍

[英]Utility class with static methods for helping with evaluation of SpEL expressions.
[中]带有静态方法的实用程序类，用于帮助计算SpEL表达式。

代码示例

代码示例来源：origin: spring-projects/spring-integration

@Override
public void afterPropertiesSet() throws Exception {
  if (this.evaluationContext == null) {
    this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(this.beanFactory);
  }
}

代码示例来源：origin: spring-projects/spring-integration

private static EvaluationContext doCreateContext(BeanFactory beanFactory, boolean simple) {
  ConversionService conversionService = null;
  EvaluationContext evaluationContext = null;
  if (beanFactory != null) {
    evaluationContext =
        simple
            ? IntegrationContextUtils.getSimpleEvaluationContext(beanFactory)
            : IntegrationContextUtils.getEvaluationContext(beanFactory);
  }
  if (evaluationContext == null) {
    if (beanFactory != null) {
      conversionService = IntegrationUtils.getConversionService(beanFactory);
    }
    evaluationContext = createEvaluationContext(conversionService, beanFactory, simple);
  }
  return evaluationContext;
}

代码示例来源：origin: spring-projects/spring-integration

@Override
protected void doInit() {
  this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(this.getBeanFactory());
  this.simpleEvaluationContext = ExpressionUtils.createSimpleEvaluationContext(this.getBeanFactory());
}

代码示例来源：origin: spring-projects/spring-integration

private File generateLocalDirectory(Message<?> message, String remoteDirectory) {
  EvaluationContext evaluationContext = ExpressionUtils.createStandardEvaluationContext(getBeanFactory());
  if (remoteDirectory != null) {
    evaluationContext.setVariable("remoteDirectory", remoteDirectory);
  }
  File localDir = ExpressionUtils.expressionToFile(this.localDirectoryExpression, evaluationContext, message,
      "Local Directory");
  if (!localDir.exists()) {
    Assert.isTrue(localDir.mkdirs(), "Failed to make local directory: " + localDir);
  }
  return localDir;
}

代码示例来源：origin: spring-projects/spring-integration

@Override
protected void doInit() {
  this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(getBeanFactory());
  if (this.destinationDirectoryExpression instanceof LiteralExpression) {
    final File directory = ExpressionUtils.expressionToFile(this.destinationDirectoryExpression,
        this.evaluationContext, null, "destinationDirectoryExpression");
    validateDestinationDirectory(directory, this.autoCreateDirectory);
  }
  Assert.state(!(this.temporaryFileSuffixSet
          && (FileExistsMode.APPEND.equals(this.fileExistsMode)
          || FileExistsMode.APPEND_NO_FLUSH.equals(this.fileExistsMode))),
      "'temporaryFileSuffix' can not be set when appending to an existing file");
  if (!this.fileNameGeneratorSet && this.fileNameGenerator instanceof BeanFactoryAware) {
    ((BeanFactoryAware) this.fileNameGenerator).setBeanFactory(getBeanFactory());
  }
}

代码示例来源：origin: spring-projects/spring-integration

@Override
public void setBeanFactory(BeanFactory beanFactory) {
  this.beanFactory = beanFactory;
  this.payloadExpressionEvaluationContext = ExpressionUtils.createStandardEvaluationContext(beanFactory);
}

代码示例来源：origin: spring-projects/spring-integration

Assert.notNull(this.localDirectoryExpression, "localDirectory must not be null");
if (this.localDirectoryExpression instanceof ValueExpression) {
  File localDirectory = ExpressionUtils.expressionToFile(this.localDirectoryExpression,
      ExpressionUtils.createStandardEvaluationContext(getBeanFactory()), null,
      "localDirectoryExpression");
  try {

代码示例来源：origin: org.springframework.integration/spring-integration-http

@Override
protected void doInit() {
  this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(this.getBeanFactory());
  this.simpleEvaluationContext = ExpressionUtils.createSimpleEvaluationContext(this.getBeanFactory());
}

代码示例来源：origin: org.springframework.integration/spring-integration-core

private static EvaluationContext doCreateContext(BeanFactory beanFactory, boolean simple) {
  ConversionService conversionService = null;
  EvaluationContext evaluationContext = null;
  if (beanFactory != null) {
    evaluationContext =
        simple
            ? IntegrationContextUtils.getSimpleEvaluationContext(beanFactory)
            : IntegrationContextUtils.getEvaluationContext(beanFactory);
  }
  if (evaluationContext == null) {
    if (beanFactory != null) {
      conversionService = IntegrationUtils.getConversionService(beanFactory);
    }
    evaluationContext = createEvaluationContext(conversionService, beanFactory, simple);
  }
  return evaluationContext;
}

代码示例来源：origin: spring-projects/spring-integration

@Override
public void afterPropertiesSet() throws Exception {
  if (this.evaluationContext == null) {
    this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(this.beanFactory);
  }
}

代码示例来源：origin: spring-projects/spring-integration

private EvaluationContext getEvaluationContext() {
  if (this.evaluationContext == null) {
    this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(this.beanFactory);
  }
  return this.evaluationContext;
}

代码示例来源：origin: spring-projects/spring-integration

@Override
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
  this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(beanFactory);
}

代码示例来源：origin: spring-projects/spring-integration

@Override
protected void onInit() {
  this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(getBeanFactory());
}

代码示例来源：origin: spring-projects/spring-integration

@Override
protected void doInit() {
  this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(this.getBeanFactory());
  Assert.state(this.destinationProvider == null || CollectionUtils.isEmpty(this.uriVariableExpressions),
      "uri variables are not supported when a DestinationProvider is supplied.");
}

代码示例来源：origin: spring-projects/spring-integration

protected StandardEvaluationContext createEvaluationContext() {
  return ExpressionUtils.createStandardEvaluationContext(getBeanFactory());
}

代码示例来源：origin: spring-projects/spring-integration

protected StandardEvaluationContext createEvaluationContext() {
  return ExpressionUtils.createStandardEvaluationContext(this.getBeanFactory());
}

代码示例来源：origin: spring-projects/spring-integration

protected StandardEvaluationContext createEvaluationContext() {
  return ExpressionUtils.createStandardEvaluationContext(getBeanFactory());
}

代码示例来源：origin: spring-projects/spring-integration

@Override
public final void afterPropertiesSet() {
  Assert.state(this.remoteDirectoryExpression != null, "'remoteDirectoryExpression' must not be null");
  if (this.evaluationContext == null) {
    this.evaluationContext = ExpressionUtils.createStandardEvaluationContext(this.beanFactory);
  }
  evaluateRemoteDirectory();
  doInit();
}

代码示例来源：origin: spring-projects/spring-integration

@Override
public void afterPropertiesSet() throws Exception {
  evalContexts.add(ExpressionUtils.createStandardEvaluationContext(this.beanFactory));
}

代码示例来源：origin: spring-projects/spring-integration

private String generateLocalFileName(Message<?> message, String remoteFileName) {
  if (this.localFilenameGeneratorExpression != null) {
    EvaluationContext evaluationContext = ExpressionUtils.createStandardEvaluationContext(getBeanFactory());
    evaluationContext.setVariable("remoteFileName", remoteFileName);
    return this.localFilenameGeneratorExpression.getValue(evaluationContext, message, String.class);
  }
  return remoteFileName;
}