No valid entries or contents found, this is not a valid OOXML (Office Open XML) file

导出导入excel失败

最终解决办法是 添加了下面的黄色背景的配置

 

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <configuration>
        <archive>
        </archive>
        <webResources>
        </webResources>
        <nonFilteredFileExtensions>
            <!--不加这一行，xlsx文件会损坏-->
            <nonFilteredFileExtension>xlsx</nonFilteredFileExtension>
            <nonFilteredFileExtension>xls</nonFilteredFileExtension>
        </nonFilteredFileExtensions>
    </configuration>
</plugin>