Java 利用 BeanUtils进行遇见的错误

最新推荐文章于 2024-03-27 14:06:12 发布

原创最新推荐文章于 2024-03-27 14:06:12 发布 · 4.6k 阅读

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本文介绍了一种常见的Java运行时错误——NoClassDefFoundError，并提供了详细的错误堆栈跟踪。通过分析错误原因，发现是由于缺少commons-logging.jar库导致的问题。最后给出了解决方案，只需导入缺失的commons-logging.jar库即可。

Llama Factory

模型微调

LLama-Factory

LLaMA Factory 是一个简单易用且高效的大型语言模型（Large Language Model）训练与微调平台。通过 LLaMA Factory，可以在无需编写任何代码的前提下，在本地完成上百种预训练模型的微调

错误提示：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.commons.beanutils.ConvertUtilsBean.<init>(ConvertUtilsBean.java:157)
at org.apache.commons.beanutils.BeanUtilsBean.<init>(BeanUtilsBean.java:117)
at org.apache.commons.beanutils.BeanUtilsBean$1.initialValue(BeanUtilsBean.java:68)
at org.apache.commons.beanutils.ContextClassLoaderLocal.get(ContextClassLoaderLocal.java:153)
at org.apache.commons.beanutils.BeanUtilsBean.getInstance(BeanUtilsBean.java:80)
at org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:456)
at myMain.mainStu.main(mainStu.java:14)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 7 more

package Model;

import java.util.Date;

public class Student {

private String name;

private int age;

private Date birth;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public Date getBirth() {

return birth;

}

public void setBirth(Date birth) {

this.birth = birth;

}

}

=============================================》》》》

package myMain;

import java.lang.reflect.InvocationTargetException;

import org.apache.commons.beanutils.BeanUtils;

import Model.Student;

public class mainStu {

public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
Student stu=new Student();
BeanUtils.setProperty(stu,"name","1234");

}

}

解决方法：

导入一个commons-logging.jar就可以解决

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