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 concatenating strings using concat method of SpEL.

File Name :	com/bethecoder/tutorials/spring3/tests/spel/StringConcatTest.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 StringConcatTest {



  /**

   * @param args

   */

  public static void main(String[] args) {



    ExpressionParser parser = new SpelExpressionParser();

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

    String message = exp.getValue(String.class);

    System.out.println(message);



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

    message = exp.getValue(String.class);

    System.out.println(message);

  }



}

String Concatenation