Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
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package com.ggl;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class TestOrcl2 {
/**
* 使用jdbc连接oracle
*/
public static void main(String[] args) {
try {
//加载驱动
Class.forName("oracle.jdbc.driver.OracleDriver");
//得到连接
Connection ct=DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521:myorcl","system","orcl");
Statement sm=ct.createStatement();
ResultSet rSet=sm.executeQuery(" select * from test;");
while (rSet.next()) {
System.out.println("用户名: "+rSet.getString(1));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
运行结果:
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.ggl.TestOrcl2.main(TestOrcl2.java:16)
t通过cmd命令差得jdk版本是1.6,环境变量配置正确,为何还会这样???
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