亲自测试过了,很好用。
转自:http://blog.csdn.net/fhliuzhihu/article/details/70142396
因为jdk升级成为了jdk8,但是spring的jar包版本比较低,并没有兼容到jdk8,所以才造成了现在的这个错误。
想要解决这个错误,一般有两种办法:
1、将jdk8换成jdk7,重新启动项目就好了。
2、第二种手动修改spring的jar包,在org.springframework.core目录下,有一个JdkVersion.class,自己参照包路径,重新写一个JdkVersion.java,如下所示:
package org.springframework.core; public 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; } } }
写好之后,编译成.class文件,放到spring的jar包中,替换项目jar包,重新启动,就好了。