001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.core; 018 019/** 020 * Class that exposes the Spring version. Fetches the 021 * "Implementation-Version" manifest attribute from the jar file. 022 * 023 * <p>Note that some ClassLoaders do not expose the package metadata, 024 * hence this class might not be able to determine the Spring version 025 * in all environments. Consider using a reflection-based check instead: 026 * For example, checking for the presence of a specific Spring 2.0 027 * method that you intend to call. 028 * 029 * @author Juergen Hoeller 030 * @since 1.1 031 */ 032public class SpringVersion { 033 034 /** 035 * Return the full version string of the present Spring codebase, 036 * or {@code null} if it cannot be determined. 037 * @see Package#getImplementationVersion() 038 */ 039 public static String getVersion() { 040 Package pkg = SpringVersion.class.getPackage(); 041 return (pkg != null ? pkg.getImplementationVersion() : null); 042 } 043 044}