pro.fessional.mirana.img

Class StreamJpg

java.lang.Object

pro.fessional.mirana.img.StreamJpg

public class StreamJpg
extends Object

Since:

2016-11-01

Author:

trydofor

Field Summary

Fields

Modifier and Type	Field and Description
static String	FORMAT
static float	QUALITY

Constructor Summary

Constructors

Constructor and Description
StreamJpg()

Method Summary

Modifier and Type	Method and Description
static byte[]	bytes(BufferedImage image) 转换成Jpg数组
static void	file(BufferedImage image, File outjpg) 保持到Jpg文件
static InputStream	tee(BufferedImage image, File outjpg) 双向输出，文件和InputStream
static InputStream	tee(BufferedImage image, OutputStream out) 双向输出，文件和InputStream
static void	writeJpg(OutputStream jpg, BufferedImage image) 按85%压缩jpg
static void	writeJpg(OutputStream jpg, BufferedImage image, float quality) 压缩jpg

Methods inherited from class java.lang.Object

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

Field Detail

FORMAT

public static final String FORMAT

See Also:

Constant Field Values

QUALITY

public static final float QUALITY

See Also:

Constant Field Values

Constructor Detail

StreamJpg

public StreamJpg()

Method Detail

writeJpg

public static void writeJpg(OutputStream jpg,
                            BufferedImage image)
                     throws IOException

按85%压缩jpg

Parameters:

jpg - 输出图片 jpg

image - 输入图片

Throws:

IOException - if io exception

writeJpg

public static void writeJpg(OutputStream jpg,
                            BufferedImage image,
                            float quality)
                     throws IOException

压缩jpg

Parameters:

jpg - 输出图片 jpg

image - 输入图片

quality - 压缩质量

Throws:

IOException - if io exception

bytes

public static byte[] bytes(BufferedImage image)
                    throws IOException

转换成Jpg数组

Parameters:

image - 图形

Returns:

字节数组

Throws:

IOException - if io exception

file

public static void file(BufferedImage image,
                        File outjpg)
                 throws IOException

保持到Jpg文件

Parameters:

image - 图片

outjpg - 输出文件

Throws:

IOException - if io exception

tee

public static InputStream tee(BufferedImage image,
                              File outjpg)
                       throws IOException

双向输出，文件和InputStream

Parameters:

image - 图片

outjpg - jpg文件

Returns:

inputStream

Throws:

IOException - if io exception

tee

public static InputStream tee(BufferedImage image,
                              OutputStream out)
                       throws IOException

双向输出，文件和InputStream

Parameters:

image - 图片

out - jpg流

Returns:

inputStream

Throws:

IOException - if io exception