有好心人么，能帮我看下这个hibernate代码出什么错了么

Question

package log4j;

import org.apache.log4j.Logger;
import org.junit.Test;

public class Log4JTest {

private Logger logger = Logger.getLogger(Log4JTest.class);

@Test
public void demo1(){
    logger.fatal("致命错误");
    logger.error("普通错误");
    logger.warn("警告信息");
    logger.info("普通信息");
    logger.debug("调试信息");
    logger.trace("堆栈信息");
}

}

测试控制台显示的是：

log4j:WARN No appenders could be found for logger (cn.itcast.log4j.Log4JTest).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Answer 1

拜托拜托，在线等挺急的