spring2.5使用jdk1.7及以上解决办法

来源：互联网发布：vb csng 编辑：程序博客网时间：2024/06/18 14:27

1、在项目中创建一个package为org.springframework.core

2、在该package下面新建JdkVersion.java，内容如下：

package org.springframework.core;/** * 修复spring2.5 使用jdk1.7或者1.8报错(only available on JDK 1.5 and higher)的问题 * @author VULCAN * */public abstract class JdkVersion {    public static final int JAVA_13 = 0;    public static final int JAVA_14 = 1;    public static final int JAVA_15 = 2;    public static final int JAVA_16 = 3;    public static final int JAVA_17 = 4;    //for jre 1.8    public static final int JAVA_18 = 5;    private static final String javaVersion = System            .getProperty("java.version");    private static final int majorJavaVersion;    public static String getJavaVersion() {        return javaVersion;    }    public static int getMajorJavaVersion() {        return majorJavaVersion;    }    public static boolean isAtLeastJava14() {        return true;    }    public static boolean isAtLeastJava15() {        return getMajorJavaVersion() >= 2;    }    public static boolean isAtLeastJava16() {        return getMajorJavaVersion() >= 3;    }    static {        //for jre 1.8        if (javaVersion.indexOf("1.8.") != -1) {            majorJavaVersion = 5;        }else if (javaVersion.indexOf("1.7.") != -1) {            majorJavaVersion = 4;        } else if (javaVersion.indexOf("1.6.") != -1) {            majorJavaVersion = 3;        } else if (javaVersion.indexOf("1.5.") != -1) {            majorJavaVersion = 2;        } else {            majorJavaVersion = 1;        }    }}

看了一个博客说要把编译以后的class文件spring-core-2.5.6.jar拷贝出来打开，然后将JdkVersion.class替换jar包中的该文件。

但是我测试了,完全不用,这样写好了以后就可以了!

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