ParserContext (Spring Framework 5.2.12.RELEASE API)

所有已知实现类:
TemplateParserContext
```
public interface ParserContext
```
Input provided to an expression parser that can influence an expression parsing/compilation routine.
从以下版本开始:
3.0
作者:
Keith Donald, Andy Clement

字段概要
字段
修饰符和类型字段说明
static ParserContext TEMPLATE_EXPRESSION
The default ParserContext implementation that enables template expression parsing mode.

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`String`	`getExpressionPrefix()`	For template expressions, returns the prefix that identifies the start of an expression block within a string.
`String`	`getExpressionSuffix()`	For template expressions, return the prefix that identifies the end of an expression block within a string.
`boolean`	`isTemplate()`	Whether or not the expression being parsed is a template.

- 字段详细资料
  - TEMPLATE_EXPRESSION
```
static final ParserContext TEMPLATE_EXPRESSION
```
    The default ParserContext implementation that enables template expression parsing mode. The expression prefix is "#{" and the expression suffix is "}".
    另请参阅:
    isTemplate()
- 方法详细资料
  - isTemplate
```
boolean isTemplate()
```
    Whether or not the expression being parsed is a template. A template expression consists of literal text that can be mixed with evaluatable blocks. Some examples:
    Some literal text Hello #{name.firstName}! #{3 + 4}
    返回:
    true if the expression is a template, false otherwise
  - getExpressionPrefix
```
String getExpressionPrefix()
```
    For template expressions, returns the prefix that identifies the start of an expression block within a string. For example: "${"
    返回:
    the prefix that identifies the start of an expression
  - getExpressionSuffix
```
String getExpressionSuffix()
```
    For template expressions, return the prefix that identifies the end of an expression block within a string. For example: "}"
    返回:
    the suffix that identifies the end of an expression