BE THE CODER > Spring > Expression Language

The Spring Expression Language (SpEL) is a simple and powerful expression language which helps to query and manipulate objects at runtime. The following example shows evaluating some boolean expressions using SpEL.

File Name :	com/bethecoder/tutorials/spring3/tests/spel/BooleanTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.spring3.tests.spel;



import org.springframework.expression.Expression;

import org.springframework.expression.ExpressionParser;

import org.springframework.expression.spel.standard.SpelExpressionParser;



public class BooleanTest {



  /**

   * @param args

   */

  public static void main(String[] args) {



    ExpressionParser parser = new SpelExpressionParser();

    Expression exp = parser.parseExpression("2 > 0");

    Boolean value = exp.getValue(Boolean.class);

    System.out.println(value);



    exp = parser.parseExpression("2 > 6");

    value = exp.getValue(Boolean.class);

    System.out.println(value);

    

    exp = parser.parseExpression("'BTC' == 'BTC'");

    value = exp.getValue(Boolean.class);

    System.out.println(value);

  }



}

Booleans