FileUtil (dart-boot-common 1.0.0 API)

所有方法静态方法具体方法
限定符和类型	方法和说明
`static String`	`fetchFileExtensionName(String filePath)`
`static String`	`fetchFileName(String filePath)`
`static String`	`fetchFileType(byte[] bytes)`
`static String`	`fetchFileType(File file)`
`static String`	`fetchFileType(InputStream inputStream)`
`static byte[]`	`readFileHead(File file)`
`static byte[]`	`readFileHead(InputStream inputStream)`
`static String`	`readString(String filePath)`

public static String fetchFileType(File file)
                            throws IOException

public static String fetchFileType(InputStream inputStream)
                            throws IOException

public static byte[] readFileHead(File file)
                           throws IOException

public static byte[] readFileHead(InputStream inputStream)
                           throws IOException

public static String fetchFileName(String filePath)

public static String fetchFileExtensionName(String filePath)

public static String readString(String filePath)
                         throws IOException

类 FileUtil