poi5.0 处理时通过new XSSFWorkbook(inputStream)出错

Question

. code 很简单 --

====================

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class test {
     
    public static void main(String[] args) throws FileNotFoundException, IOException {

        XSSFWorkbook workbook = new XSSFWorkbook (new FileInputStream("D:\\data.xlsx"));        

    }

}
 

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出错信息 --

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections4/ListValuedMap
    at lesson_05.test.main(test.java:15)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections4.ListValuedMap
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:636)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:182)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
    ... 1 more
 

 

Answer 1

导入 collections4， 解决了。