java.lang.Object
- org.springframework.context.expression.StandardBeanExpressionResolver

所有已实现的接口:
BeanExpressionResolver
```
public class StandardBeanExpressionResolver
extends Object
implements BeanExpressionResolver
```
Standard implementation of the BeanExpressionResolver interface, parsing and evaluating Spring EL using Spring's expression module.
All beans in the containing BeanFactory are made available as predefined variables with their common bean name, including standard context beans such as "environment", "systemProperties" and "systemEnvironment".
从以下版本开始:
3.0
作者:
Juergen Hoeller
另请参阅:
BeanExpressionContext.getBeanFactory(), ExpressionParser, SpelExpressionParser, StandardEvaluationContext

字段概要
字段
修饰符和类型字段说明
static String DEFAULT_EXPRESSION_PREFIX
Default expression prefix: "#{".
static String DEFAULT_EXPRESSION_SUFFIX
Default expression suffix: "}".

构造器概要

构造器
构造器	说明
`StandardBeanExpressionResolver()`	Create a new `StandardBeanExpressionResolver` with default settings.
`StandardBeanExpressionResolver(ClassLoader beanClassLoader)`	Create a new `StandardBeanExpressionResolver` with the given bean class loader, using it as the basis for expression compilation.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected void`	`customizeEvaluationContext(StandardEvaluationContext evalContext)`	Template method for customizing the expression evaluation context.
`Object`	`evaluate(String value, BeanExpressionContext evalContext)`	Evaluate the given value as an expression, if applicable; return the value as-is otherwise.
`void`	`setExpressionParser(ExpressionParser expressionParser)`	Specify the EL parser to use for expression parsing.
`void`	`setExpressionPrefix(String expressionPrefix)`	Set the prefix that an expression string starts with.
`void`	`setExpressionSuffix(String expressionSuffix)`	Set the suffix that an expression string ends with.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - DEFAULT_EXPRESSION_PREFIX
```
public static final String DEFAULT_EXPRESSION_PREFIX
```
    Default expression prefix: "#{".
    另请参阅:
    常量字段值
  - DEFAULT_EXPRESSION_SUFFIX
```
public static final String DEFAULT_EXPRESSION_SUFFIX
```
    Default expression suffix: "}".
    另请参阅:
    常量字段值
- 构造器详细资料
  - StandardBeanExpressionResolver
```
public StandardBeanExpressionResolver()
```
    Create a new StandardBeanExpressionResolver with default settings.
  - StandardBeanExpressionResolver
```
public StandardBeanExpressionResolver(@Nullable
                                      ClassLoader beanClassLoader)
```
    Create a new StandardBeanExpressionResolver with the given bean class loader, using it as the basis for expression compilation.
    参数:
    beanClassLoader - the factory's bean class loader
- 方法详细资料
  - setExpressionPrefix
```
public void setExpressionPrefix(String expressionPrefix)
```
    Set the prefix that an expression string starts with. The default is "#{".
    另请参阅:
    DEFAULT_EXPRESSION_PREFIX
  - setExpressionSuffix
```
public void setExpressionSuffix(String expressionSuffix)
```
    Set the suffix that an expression string ends with. The default is "}".
    另请参阅:
    DEFAULT_EXPRESSION_SUFFIX
  - setExpressionParser
```
public void setExpressionParser(ExpressionParser expressionParser)
```
    Specify the EL parser to use for expression parsing.
    Default is a SpelExpressionParser, compatible with standard Unified EL style expression syntax.
  - evaluate
```
@Nullable
public Object evaluate(@Nullable
                       String value,
                       BeanExpressionContext evalContext)
                throws BeansException
```
    从接口复制的说明: BeanExpressionResolver
    Evaluate the given value as an expression, if applicable; return the value as-is otherwise.
    指定者:
    evaluate 在接口中 BeanExpressionResolver
    参数:
    value - the value to check
    evalContext - the evaluation context
    返回:
    the resolved value (potentially the given value as-is)
    抛出:
    BeansException - if evaluation failed
  - customizeEvaluationContext
```
protected void customizeEvaluationContext(StandardEvaluationContext evalContext)
```
    Template method for customizing the expression evaluation context.
    The default implementation is empty.

修饰符和类型	字段	说明
`static String`	`DEFAULT_EXPRESSION_PREFIX`	Default expression prefix: "#{".
`static String`	`DEFAULT_EXPRESSION_SUFFIX`	Default expression suffix: "}".

类 StandardBeanExpressionResolver

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

DEFAULT_EXPRESSION_PREFIX

DEFAULT_EXPRESSION_SUFFIX

构造器详细资料

StandardBeanExpressionResolver

StandardBeanExpressionResolver

方法详细资料

setExpressionPrefix

setExpressionSuffix

setExpressionParser

evaluate

customizeEvaluationContext