使用Apache Poi读取Excel时出现ListValuedMap NoClassDefFoundError？

Question

While Executing the Program, Below are the issues Compiler is throwing

Exception in thread "main" java.lang.NoClassDefFoundError: 
org/apache/commons/collections4/ListValuedMap
at ReadExcel.main(ReadExcel.java:19)
Caused by: java.lang.ClassNotFoundException: 
org.apache.commons.collections4.ListValuedMap
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)
... 1 more

Please help me know how to solve this Thanks in advance

Answer 1

you should be good if you add the below jar. https://mvnrepository.com/artifact/org.apache.commons/commons-collections4/4.1

Answer 2

您缺少某些必需的类，如果正在使用eclipse，则可能会在pom.xml上检查您的版本，可以执行cnt shift T，看看是否可以打开缺少的类（ListValuedMap）文件，并查看它是否来自与您指定的相同的jar在您的pom中。