2-异常-FileNotFoundException(三种不同的报错)

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FileNotFoundException：文件找不到异常，FileNotFoundException出现有几种可能性，可参考下列内容。

FileNotFoundException: D:\XXX\XXX.xlsx
FileNotFoundException: D:\XXX\XXX\XXX.xlsx (另一个程序正在使用此文件，进程无法访问。)
FileNotFoundException: D:\XXX\XXX\XXX.xlsx (拒绝访问。)

报错一： FileNotFoundException: D:\XXX\XXX.xlsx

cn.hutool.poi.exceptions.POIException: FileNotFoundException: D:\XXX\XXX.xlsx


Caused by: java.io.FileNotFoundException: D:\XXX\XXX.xlsx
	at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:317)
	at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:295)
	at cn.hutool.poi.excel.WorkbookUtil.createBook(WorkbookUtil.java:84)
	... 38 more

可能的原因：

FileNotFoundException字面意思读取的文件路径对应的文件不存在
读取的文件路径可能写错

报错二：FileNotFoundException: D:\XXX\XXX\XXX.xlsx (另一个程序正在使用此文件，进程无法访问。)

cn.hutool.poi.exceptions.POIException: FileNotFoundException: D:\XXX\XXX\XXX.xlsx (另一个程序正在使用此文件，进程无法访问。)


Caused by: java.io.FileNotFoundException: D:\XXX\XXX\XXX.xlsx (另一个程序正在使用此文件，进程无法访问。)
	at java.io.RandomAccessFile.open0(Native Method)
	at java.io.RandomAccessFile.open(RandomAccessFile.java:316)
	at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243)
	at org.apache.poi.poifs.nio.FileBackedDataSource.newSrcFile(FileBackedDataSource.java:158)
	at org.apache.poi.poifs.nio.FileBackedDataSource.<init>(FileBackedDataSource.java:60)
	at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java:217)
	at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java:170)
	at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:322)
	at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:295)
	at cn.hutool.poi.excel.WorkbookUtil.createBook(WorkbookUtil.java:84)
	... 38 more

可能的原因:

报错内容里面直接说明了，读取的文件正在被另一个程序使用，导致无法访问，本地将打开这个文件的程序关闭即可。

报错三： FileNotFoundException: D:\XXX\XXX\XXX.xlsx (拒绝访问。)

cn.hutool.poi.exceptions.POIException: FileNotFoundException: D:\XXX\XXX\XXX.xlsx (拒绝访问。)


Caused by: java.io.FileNotFoundException: D:\XXX\XXX\XXX.xlsx (拒绝访问。)
	at java.io.RandomAccessFile.open0(Native Method)
	at java.io.RandomAccessFile.open(RandomAccessFile.java:316)
	at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243)
	at org.apache.poi.poifs.nio.FileBackedDataSource.newSrcFile(FileBackedDataSource.java:158)
	at org.apache.poi.poifs.nio.FileBackedDataSource.<init>(FileBackedDataSource.java:60)
	at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java:217)
	at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java:170)
	at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:322)
	at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:295)
	at cn.hutool.poi.excel.WorkbookUtil.createBook(WorkbookUtil.java:84)
	... 38 more

可能的原因：