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作者 Re:跪求图片显示代码 !!!!!(在线等) [Re:zzw5516]
liboys





发贴: 2
于 2006-05-17 15:01 user profilesend a private message to userreply to postsearch all posts byselect and copy to clipboard. 
ie only, sorry for netscape users:-)add this post to my favorite list
这是一个JSP输出图片的例子,供你参考,其实就是将数据流发送出去,前面加个IE标头

<%@ page import="java.awt.*" %>
<%@ page import="java.awt.image.*" %>
<%@ page import="com.sun.image.codec.jpeg.*" %>
<%@ page import="java.util.*" %>

<%
    //test by liboy

    int width=400;
    int height= 400;

    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGBlack Eye;
    
    Graphics g = image.getGraphics();
    //Graphics2d g2d = image.createGraphics();

    g.setColor(Color.white);
    g.fillRect(0, 0, width, height);
    g.setColor(Color.black);
    g.drawRect(0,0,width-1,height-1);
    // Create random polygon
    Polygon poly = new Polygon();
    Random random = new Random();
    for (int i=0; i<5; i++) {
    poly.addPoint(random.nextInt(width), random.nextInt(height));
    }
    // Fill polygon
    g.setColor(Color.cyan);
    g.fillPolygon(poly);
    // Dispose context
    g.dispose();

response.reset();
response.setContentType("image/jpeg");

    ServletOutputStream sos = response.getOutputStream();
    JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(sos);
    encoder.encode(image);

%>




话题树型展开
人气 标题 作者 字数 发贴时间
2102 跪求图片显示代码 !!!!!(在线等) zzw5516 174 2006-05-16 16:16
1590 Re:跪求图片显示代码 !!!!!(在线等) liboys 1109 2006-05-17 15:01
1612 Re:跪求图片显示代码 !!!!!(在线等) chengbd 41 2006-05-19 15:19
1796 Re:跪求图片显示代码 !!!!!(在线等) zzw5516 10 2006-05-24 09:43

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