“org/apache/commons/logging/LogFactory”错误的解决方式

用spring-framework-4.2.6.RELEASE-dist时，发生了如下的错误：
[java] view plain copy
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory  
    at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:159)  
    at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:223)  
    at org.springframework.context.support.AbstractRefreshableApplicationContext.<init>(AbstractRefreshableApplicationContext.java:88)  
    at org.springframework.context.support.AbstractRefreshableConfigApplicationContext.<init>(AbstractRefreshableConfigApplicationContext.java:58)  
    at org.springframework.context.support.AbstractXmlApplicationContext.<init>(AbstractXmlApplicationContext.java:61)  
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:136)  
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)  
    at com.liu.UserTest.main(UserTest.java:14)  
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory  
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)  
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)  
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)  
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)  
    ... 8 more  

解决办法是在项目中导入commons-logging-1.2.jar
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