java文件读取文件：java.nio.file.InvalidPathException: Illegal char ＜:＞ at index 2

java.nio.file.InvalidPathException: Illegal char <:> at index 2springboot项目中，文件拷贝时使用Files.copy(new File(“C:/a/b.txt”).toPath(), “c/a/b.txt”)报错java.nio.file.InvalidPathException: Illegal char &lt

LZ_玉米

17584人浏览 · 2020-07-16 10:16:39

LZ_玉米 · 2020-07-16 10:16:39 发布

java.nio.file.InvalidPathException: Illegal char <:> at index 2

springboot项目中，文件拷贝时使用Files.copy(new File(“C:/a/b.txt”).toPath(), “c/a/b.txt”)报错

java.nio.file.InvalidPathException: Illegal char <:> at index 2: C:/a/b.txt
   at sun.nio.fs.WindowsPathParser.normalize(Unknown Source)
   at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
   at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
   at sun.nio.fs.WindowsPath.parse(Unknown Source)
   at sun.nio.fs.WindowsFileSystem.getPath(Unknown Source)
   at java.io.File.toPath(Unknown Source

原因时未找到C:/a/b.txt，因为springboot项目中读取文件C:/a/b.txt变成了“‘项目根目录’/C:/a/b.txt”

解决办法把原来的方法改一下：

Files.copy(new File(“C:/a/b.txt”).toPath(), “c/a/b.txt”)

↓ ↓ ↓

Files.copy(new File(new File(“C:/a/b.txt”).getPath().substring(1)).toPath(), “c/a/b.txt”)