求助，java连接oracle时出错！！！
我是oracle初学者，在eclipse上尝试java连接oracle时，出现了以下状况：
testing oracle-character-set-1 against <abc>
PASSED LOSSY
testing oracle-character-set-1 against <ab?c>
PASSED LOSSY
testing oracle-character-set-1 against <XYZ>
PASSED LOSSY
testing oracle-character-set-1 against <longlonglonglong...>
PASSED LOSSY
testing oracle-character-set-31 against <abc>
PASSED LOSSY
testing oracle-character-set-31 against <ab?c>
PASSED LOSSY
testing oracle-character-set-31 against <XYZ>
PASSED LOSSY
testing oracle-character-set-31 against <longlonglonglong...>
PASSED LOSSY
testing oracle-character-set-870 against <abc>
PASSED
testing oracle-character-set-870 against <ab?c>
PASSED
testing oracle-character-set-870 against <XYZ>
PASSED
testing oracle-character-set-870 against <longlonglonglong...>
PASSED
testing oracle-character-set-871 against <abc>
PASSED
testing oracle-character-set-871 against <ab?c>
PASSED
testing oracle-character-set-871 against <XYZ>
PASSED
testing oracle-character-set-871 against <longlonglonglong...>
PASSED
求大虾们指点，这是个什么状况？？我在网上寻找过类似问题，但是没有得到比较好的解决，谢谢了！！！

[解决办法]
把localhost改成你IP地址试试，另外，你数据库用SQLPLUS能登录连接不呢，首先确定是数据库问题还是程序问题，
[解决办法]
如果SQL/PLUS能登陆，说明数据库通的，确认你程序没问题的话，会不会是JAR包的问题