代码很简单，没有什么新意！就是利用JDK做的简单绘图和变换！
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package
com.oracle.day16;
import
java.awt.Color;
import
java.awt.Font;
import
java.awt.Graphics2D;
import
java.awt.RenderingHints;
import
java.awt.font.FontRenderContext;
import
java.awt.geom.Rectangle2D;
import
java.awt.image.BufferedImage;
import
java.io.File;
import
java.io.IOException;
import
javax.imageio.ImageIO;
/**
*
*@author huyongjian Oracle(Compus Solution Group)
* @Date 2013-8-16
* @version 2.0
* @since JDK1.6（建议）
Copy Right Information COMPUS SOLUTION GROUP
IDE:Eclipse
class:
打印生成jpg图片生成文字水印
JDK2D02
*/
public
class
TestJdk2D02 {
public
String create(String str,String filePath,
int
width,
int
height){
String fileName=System.currentTimeMillis()+
".jpg"
;
String path=filePath+
"/"
+fileName;
File file=
new
File(path);
BufferedImage bi=
new
BufferedImage(width,height,
BufferedImage.TYPE_INT_RGB);
Graphics2D g2=(Graphics2D) bi.getGraphics();
g2.setColor.WHITE);
g2.clearRect(
0
,
0
, width, height);
Font font=
new
Font(
"黑体"
,Font.BOLD,
25
);
g2.setFont(font);
g2.setPaint(Color.RED);
FontRenderContext context=g2.getFontRenderContext();
Rectangle2D bounds=font.getStringBounds(str, context);
double
x=(width-bounds.getWidth())/
2
;
double
y=(height-bounds.getHeight())/
2
;
double
ascent=-bounds.getY();
double
baseY=y+ascent;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2.drawString(str, (
int
)x, (
int
)baseY);
try
{
ImageIO.write(bi,
"jpg"
, file);
}
catch
(IOException e) {
e.printStackTrace();
}
return
file.getPath();
}
public
static
void
main(String[] args) {
TestJdk2D02 t=
new
TestJdk2D02();
System.out.println(t.create(
"小夜的传说"
,
"c:/"
,
500
,
38
));
}
}
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运行之后在您的C盘中可以查看生成图片的水印！
群号：1936625305 Java程序员联盟 欢迎大家的加入！
本文转自 小夜的传说 51CTO博客，原文链接：http://blog.51cto.com/1936625305/1282136，如需转载请自行联系原作者
