com.sh.wf.excel.util

类 FileUtils

java.lang.Object

com.sh.wf.excel.util.FileUtils

public class FileUtils
extends java.lang.Object

字段概要

字段

限定符和类型	字段和说明
static java.lang.String	EX_CACHE
static java.lang.String	POI_FILES

方法概要

限定符和类型	方法和说明
static java.io.File	createCacheTmpFile()
static void	createPoiFilesDirectory()
static java.io.File	createTmpFile(java.lang.String fileName)
static void	delete(java.io.File file) delete file
static java.lang.String	getCachePath()
static java.lang.String	getPoiFilesPath()
static java.lang.String	getTempFilePrefix()
static java.io.FileInputStream	openInputStream(java.io.File file) Opens a FileInputStream for the specified file, providing better error messages than simply calling new FileInputStream(file).
static byte[]	readFileToByteArray(java.io.File file) Reads the contents of a file into a byte array. * The file is always closed.
static void	setCachePath(java.lang.String cachePath)
static void	setPoiFilesPath(java.lang.String poiFilesPath)
static void	setTempFilePrefix(java.lang.String tempFilePrefix)
static void	writeToFile(java.io.File file, java.io.InputStream inputStream) Write inputStream to file

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

POI_FILES

public static final java.lang.String POI_FILES

另请参阅:

常量字段值

EX_CACHE

public static final java.lang.String EX_CACHE

另请参阅:

常量字段值

方法详细资料

readFileToByteArray

public static byte[] readFileToByteArray(java.io.File file)
                                  throws java.io.IOException

Reads the contents of a file into a byte array. * The file is always closed.

参数:

file - File

返回:

byte[]

抛出:

java.io.IOException - IOException

openInputStream

public static java.io.FileInputStream openInputStream(java.io.File file)
                                               throws java.io.IOException

Opens a FileInputStream for the specified file, providing better error messages than simply calling new FileInputStream(file).

At the end of the method either the stream will be successfully opened, or an exception will have been thrown.

An exception is thrown if the file does not exist. An exception is thrown if the file object exists but is a directory. An exception is thrown if the file exists but cannot be read.

参数:

file - File

返回:

FileInputStream

抛出:

java.io.IOException - IOException

writeToFile

public static void writeToFile(java.io.File file,
                               java.io.InputStream inputStream)

Write inputStream to file

参数:

file - File

inputStream - InputStream

createPoiFilesDirectory

public static void createPoiFilesDirectory()

createCacheTmpFile

public static java.io.File createCacheTmpFile()

createTmpFile

public static java.io.File createTmpFile(java.lang.String fileName)

delete

public static void delete(java.io.File file)

delete file

参数:

file - File

getTempFilePrefix

public static java.lang.String getTempFilePrefix()

setTempFilePrefix

public static void setTempFilePrefix(java.lang.String tempFilePrefix)

getPoiFilesPath

public static java.lang.String getPoiFilesPath()

setPoiFilesPath

public static void setPoiFilesPath(java.lang.String poiFilesPath)

getCachePath

public static java.lang.String getCachePath()

setCachePath

public static void setCachePath(java.lang.String cachePath)