org.hiylo.components.commons.utils

Class ImageUtils

java.lang.Object

org.hiylo.components.commons.utils.ImageUtils

public class ImageUtils
extends Object

图片工具

Author:

hiylo

Constructor Summary

Constructors

Constructor and Description
ImageUtils()

Method Summary

Modifier and Type	Method and Description
int	getAspectRatio(InputStream inputStream) 获取图片的宽高比
InputStream	resize(InputStream inputStream, int newWidth, int newHeight, boolean forceResize) 改变图片分辨率
void	resize(InputStream inputStream, OutputStream outputStream, int newWidth, int newHeight, boolean forceResize) 改变图片分辨率

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

resize

public InputStream resize(InputStream inputStream,
                          int newWidth,
                          int newHeight,
                          boolean forceResize)
                   throws IOException

改变图片分辨率

Parameters:

inputStream - 输入流

newWidth - 新的宽

newHeight - 新的高

forceResize - 是否强制宽高

Returns:

输入流

Throws:

IOException - 文件输出异常

resize

public void resize(InputStream inputStream,
                   OutputStream outputStream,
                   int newWidth,
                   int newHeight,
                   boolean forceResize)
            throws IOException

改变图片分辨率

Parameters:

inputStream - 输入流

outputStream - 输出流

newWidth - 新的宽

newHeight - 新的高

forceResize - 是否强制宽高

Throws:

IOException - 文件输出异常

getAspectRatio

public int getAspectRatio(InputStream inputStream)
                   throws IOException

获取图片的宽高比

Parameters:

inputStream - 输入流

Returns:

宽高比例

Throws:

IOException - 文件异常