cn.hutool.extra.expression

Class ExpressionUtil

java.lang.Object

cn.hutool.extra.expression.ExpressionUtil

public class ExpressionUtil
extends Object

表达式引擎工具类

Since:

5.5.0

Author:

looly

Constructor Summary

Constructors

Constructor and Description
ExpressionUtil()

Method Summary

Modifier and Type	Method and Description
static Object	eval(String expression, Map<String,Object> context) 执行表达式
static Object	eval(String expression, Map<String,Object> context, Collection<Class<?>> allowClassSet) 执行表达式
static ExpressionEngine	getEngine() 获得全局单例的表达式引擎

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExpressionUtil

public ExpressionUtil()

Method Detail

getEngine

public static ExpressionEngine getEngine()

获得全局单例的表达式引擎

Returns:

全局单例的表达式引擎

eval

public static Object eval(String expression,
                          Map<String,Object> context)

执行表达式

Parameters:

expression - 表达式

context - 表达式上下文，用于存储表达式中所需的变量值等

Returns:

执行结果

eval

public static Object eval(String expression,
                          Map<String,Object> context,
                          Collection<Class<?>> allowClassSet)

执行表达式

Parameters:

expression - 表达式

context - 表达式上下文，用于存储表达式中所需的变量值等

allowClassSet - 允许的Class白名单

Returns:

执行结果

Since:

5.8.21