Spring 初学的不明错误

ccaiw 2010-04-11 01:23:22



import org.springframework.beans.factory.xml.XmlBeanFactory;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.FileSystemXmlApplicationContext;

import org.springframework.core.io.FileSystemResource;



public class ShowHello {

	public static void main(String[] args) {

		ApplicationContext ctx=new  FileSystemXmlApplicationContext("config.xml"); 

		

	}



}

一个最简单的读取配置文件语句都会出错
运行以后如下错误
log4j:WARN No appenders could be found for logger (org.springframework.context.support.FileSystemXmlApplicationContext).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.springframework.context.support.AbstractRefreshableApplicationContext.createBeanFactory(AbstractRefreshableApplicationContext.java:194)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:127)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:465)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:395)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:140)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:84)
at com.iudge.spring.ShowHello.main(ShowHello.java:10)
Caused by: java.lang.NullPointerException
at org.springframework.beans.factory.support.DefaultListableBeanFactory.<clinit>(DefaultListableBeanFactory.java:104)
... 7 more

关于log4j的错误我知道没配properties
问题是那个nullpointerexception搞了半天没查出到底什么地方出错了
关于config.xml
是放对了地方的...

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DreamIncredible 2012-11-26

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啊不用了了解了

DreamIncredible 2012-11-26

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可以告诉我怎么解决的么看不懂有点

ccaiw 2010-04-11

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已经解决了
地址

ccaiw 2010-04-11

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[Quote=引用 1 楼 zhangyong20081204 的回复:]
肯定是放错地方了。找不到指针啊。
[/Quote]
那么我改一下代码测试一下文件存不存在，然后看结果



public class ShowHello {

	public static void main(String[] args) {

//		ApplicationContext ctx=new  FileSystemXmlApplicationContext("config.xml"); 

		File file=new File("config.xml");

		if(file.exists()){  

			ApplicationContext ctx = new FileSystemXmlApplicationContext("config.xml");

		}

		

	}



}

运行的结果照样是那个错误