程序包 com.alibaba.nacos.common.utils

类 IoUtils

java.lang.Object

com.alibaba.nacos.common.utils.IoUtils

public class IoUtils
extends Object

IO related tool methods.

作者:

nacos

构造器概要

构造器

构造器	说明
IoUtils()

方法概要

修饰符和类型	方法	说明
static void	cleanDirectory(File directory)	清理目录下的内容.
static void	closeQuietly(Closeable closeable)	Close closable object quietly.
static void	closeQuietly(InputStream input)
static void	closeQuietly(OutputStream output)
static void	closeQuietly(HttpURLConnection connection)	Close http connection quietly.
static long	copy(InputStream input, OutputStream output)	Copy data.
static long	copy(Reader input, Writer output)	Copy data.
static void	copyFile(String source, String target)	Copy File.
static void	delete(File fileOrDir)	Delete file or dir.
static boolean	isGzipStream(byte[] bytes)	Judge whether is Gzip stream.
static List<String>	readLines(Reader input)	Read lines.
static String	toString(InputStream input, String encoding)	To string from stream.
static String	toString(Reader reader)	To string from reader.
static byte[]	tryCompress(String str, String encoding)	Try compress by GZIP for string.
static byte[]	tryDecompress(byte[] raw)	Try decompress by GZIP from byte array.
static byte[]	tryDecompress(InputStream raw)	Try decompress by GZIP from stream.
static void	writeStringToFile(File file, String data, String encoding)	Write string to a file.

从类继承的方法 java.lang.Object

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

构造器详细资料

IoUtils

public IoUtils()

方法详细资料

tryDecompress

public static byte[] tryDecompress(InputStream raw)
                            throws IOException

Try decompress by GZIP from stream.

参数:

raw - compress stream

返回:

byte array after decompress

抛出:

IOException - exception

tryDecompress

public static byte[] tryDecompress(byte[] raw)
                            throws Exception

Try decompress by GZIP from byte array.

参数:

raw - compressed byte array

返回:

byte array after decompress

抛出:

Exception - exception

tryCompress

public static byte[] tryCompress(String str,
 String encoding)

Try compress by GZIP for string.

参数:

str - strings to be compressed.

encoding - encoding.

返回:

byte[]

writeStringToFile

public static void writeStringToFile(File file,
 String data,
 String encoding)
                              throws IOException

Write string to a file.

参数:

file - file

data - string

encoding - encoding of string

抛出:

IOException - io exception

readLines

public static List<String> readLines(Reader input)
                              throws IOException

Read lines.

参数:

input - reader

返回:

list of line

抛出:

IOException - io exception

toString

public static String toString(InputStream input,
 String encoding)
                       throws IOException

To string from stream.

参数:

input - stream

encoding - charset of stream

返回:

string

抛出:

IOException - io exception

toString

public static String toString(Reader reader)
                       throws IOException

To string from reader.

参数:

reader - reader

返回:

string

抛出:

IOException - io exception

copy

public static long copy(Reader input,
 Writer output)
                 throws IOException

Copy data.

参数:

input - source

output - target

返回:

copy size

抛出:

IOException - io exception

copy

public static long copy(InputStream input,
 OutputStream output)
                 throws IOException

Copy data.

参数:

input - source

output - target

返回:

copy size

抛出:

IOException - io exception

delete

public static void delete(File fileOrDir)
                   throws IOException

Delete file or dir.

If is dir, clean directory, do not delete dir.

If is file, delete file.

参数:

fileOrDir - file or dir

抛出:

IOException - io exception

cleanDirectory

public static void cleanDirectory(File directory)
                           throws IOException

清理目录下的内容. Clean content under directory.

参数:

directory - directory

抛出:

IOException - io exception

copyFile

public static void copyFile(String source,
 String target)
                     throws IOException

Copy File.

参数:

source - source file path

target - target file path

抛出:

IOException - io exception

isGzipStream

public static boolean isGzipStream(byte[] bytes)

Judge whether is Gzip stream.

参数:

bytes - byte array

返回:

true if is gzip, otherwise false

closeQuietly

public static void closeQuietly(HttpURLConnection connection)

Close http connection quietly.

参数:

connection - http connection

closeQuietly

public static void closeQuietly(InputStream input)

closeQuietly

public static void closeQuietly(OutputStream output)

closeQuietly

public static void closeQuietly(Closeable closeable)

Close closable object quietly.

参数:

closeable - http connection