cn.t.util.io

Class FileUtil

java.lang.Object

cn.t.util.io.FileUtil

public class FileUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
FileUtil()

Method Summary

Modifier and Type	Method and Description
static String	appendFilePath(String original, String append)
static void	copyFile(String from, String to) 文件 zero copy 复制
static Path	copyInputStreamToTempFile(InputStream in, String prefix, String suffix) 将输入流写入文件
static Path	createTempFile(String prefix, String suffix) 创建临时文件
static BufferedInputStream	getBufferedInputStream(String path)
static BufferedReader	getBufferedReader(String path)
static byte[]	getFileBytes(String path)
static FileInputStream	getFileInputStream(String path)
static FileReader	getFileReader(String path)
static String	getMimeType(String path) 获取文件mime type
static String	getProjectClassPath()
static String	getProjectPath()
static DataInputStream	getResourceDataInputStream(String path)
static FileInputStream	getResourceFileInputStream(ClassLoader classLoader, String path)
static InputStream	getResourceInputStream(ClassLoader classLoader, String path) 默认则是从ClassPath根下获取，path不能以'/'开头，最终是由ClassLoader获取资源。
static InputStream	getResourceInputStream(Class clazz, String path) path 不以'/'开头时默认是从此类所在的包下取资源，以'/'开头则是从ClassPath(Src根目录)根下获取。 其只是通过path构造一个绝对路径，最终还是由ClassLoader获取资源。
static boolean	initDirectory(File file)
static boolean	initFile(File file)
static String	saveToTempDir(byte[] bytes, String contentType)

Methods inherited from class java.lang.Object

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

Constructor Detail

FileUtil

public FileUtil()

Method Detail

getResourceInputStream

public static InputStream getResourceInputStream(Class clazz,
                                                 String path)

path 不以'/'开头时默认是从此类所在的包下取资源，以'/'开头则是从ClassPath(Src根目录)根下获取。 其只是通过path构造一个绝对路径，最终还是由ClassLoader获取资源。

Parameters:

clazz - xxx

path - xxx

Returns:

xxx

getResourceInputStream

public static InputStream getResourceInputStream(ClassLoader classLoader,
                                                 String path)

默认则是从ClassPath根下获取，path不能以'/'开头，最终是由ClassLoader获取资源。

Parameters:

classLoader - xxx

path - xxx

Returns:

xxx

getResourceFileInputStream

public static FileInputStream getResourceFileInputStream(ClassLoader classLoader,
                                                         String path)
                                                  throws URISyntaxException,
                                                         FileNotFoundException

Throws:

URISyntaxException

FileNotFoundException

getFileInputStream

public static FileInputStream getFileInputStream(String path)
                                          throws FileNotFoundException

Throws:

FileNotFoundException

getResourceDataInputStream

public static DataInputStream getResourceDataInputStream(String path)
                                                  throws FileNotFoundException

Throws:

FileNotFoundException

getFileReader

public static FileReader getFileReader(String path)
                                throws FileNotFoundException

Throws:

FileNotFoundException

getBufferedInputStream

public static BufferedInputStream getBufferedInputStream(String path)
                                                  throws FileNotFoundException

Throws:

FileNotFoundException

getBufferedReader

public static BufferedReader getBufferedReader(String path)
                                        throws FileNotFoundException

Throws:

FileNotFoundException

getFileBytes

public static byte[] getFileBytes(String path)
                           throws IOException

Throws:

IOException

getProjectClassPath

public static String getProjectClassPath()

getProjectPath

public static String getProjectPath()

saveToTempDir

public static String saveToTempDir(byte[] bytes,
                                   String contentType)
                            throws IOException

Throws:

IOException

copyFile

public static void copyFile(String from,
                            String to)
                     throws IOException

文件 zero copy 复制

Parameters:

from - xxx

to - xxx

Throws:

IOException - xxx

getMimeType

public static String getMimeType(String path)
                          throws IOException

获取文件mime type

Parameters:

path - xxx

Returns:

xxx

Throws:

IOException - xxx

createTempFile

public static Path createTempFile(String prefix,
                                  String suffix)
                           throws IOException

创建临时文件

Parameters:

prefix - xxx

suffix - xxx

Returns:

xxx

Throws:

IOException - xxx

copyInputStreamToTempFile

public static Path copyInputStreamToTempFile(InputStream in,
                                             String prefix,
                                             String suffix)
                                      throws IOException

将输入流写入文件

Parameters:

in - xxx

prefix - xxx

suffix - xxx

Returns:

xxx

Throws:

IOException - xxx

appendFilePath

public static String appendFilePath(String original,
                                    String append)

initFile

public static boolean initFile(File file)
                        throws IOException

Throws:

IOException

initDirectory

public static boolean initDirectory(File file)
                             throws IOException

Throws:

IOException