Getting java.lang.ClassNotFoundException： org.apache.commons.logging.LogFactory exception

java noclassdeffounderror

2022-08-31 06:09:44

我正在执行简单的依赖注入程序的弹簧并得到这个例外。我已经包含了common-logging1.1.1.jar和spring.jar文件。你能帮忙吗？

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
    at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:119)
    at org.springframework.context.support.AbstractXmlApplicationContext.<init>(AbstractXmlApplicationContext.java:55)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:77)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:65)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:56)
    at com.client.StoryReader.main(StoryReader.java:15)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
    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)
    ... 6 more

答案 1

如果使用 maven 来管理依赖项，请在 pom.xml中添加以下行：

<dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.1.1</version>
</dependency>

答案 2

我也遇到了同样的问题，要修复，从下面的url下载jar文件

http://commons.apache.org/logging/download_logging.cgi

并复制到您的lib文件夹，将解决您的问题。