实现图片上传格式修改和大小修改方法一

jsp中编写的java代码实现的该功能，用的时fileupload插件实现的上传

<span style="font-size:18px;"><%@page import="com.sun.image.codec.jpeg.JPEGImageEncoder"%><%@page import="com.sun.image.codec.jpeg.JPEGCodec"%><%@page import="java.awt.Image"%><%@page import="javax.imageio.ImageIO"%><%@page import="java.awt.image.BufferedImage"%></span>

实现代码

<span style="font-size:18px;">name = courseId;int width = 165;//图片的宽度int height = 122;//图片的高度BufferedImage bi = ImageIO.read( item.getInputStream());BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);tag.getGraphics().drawImage(bi.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);FileOutputStream fos = new FileOutputStream(new File(savePath + name +".jpg"));JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(fos);encoder.encode(tag);fos.close()</span>

注：item