方法1：
BufferedImage bi = null;
Graphics2D g2 = null;
int widths = 100;
int heights = 40;
try{
bi = new BufferedImage(widths, heights,BufferedImage.TYPE_INT_RGB);
//bi.setRGB(255,255,255);
g2 = (Graphics2D) bi.getGraphics();
g2.setBackground(java.awt.Color.white);
//g2.setColor(java.awt.Color.black);
g2.drawString( "tidekong ",5,5);
}finally{
if (g2!=null){
g2.dispose();
}
}
OutputStream outPutStream = new FileOutputStream( "c:\\tide.jpg ");
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(outPutStream);
encoder.encode(bi);
方法 2：
package net.xdevelop.merge;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.*;
import java.awt.*;
import java.awt.image.*;
import javax.servlet.*;
import javax.servlet.http.*;
import com.sun.image.codec.jpeg.*;
/**
* @author Liao Xue Feng
*/
public class CreateImageServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
response.setContentType("image/jpeg");
createImage(response.getOutputStream());
}
private void createImage(OutputStream out) {
String text =" 測(cè)試";
int width = 600;
int height = text.length()/20*20;
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
// set background:
g.setBackground(Color.GREEN);
g.clearRect(0, 0, width, height);
Font mFont = new Font("宋體",Font.PLAIN,20);//默認(rèn)字體
g.setColor(new Color(Integer.parseInt("000000",16)));
g.setFont(mFont);
int x=3;
int y=3;
int count = text.length();
int i = 0;
String getone = null;
while(count >0)
{
getone = text.substring(i,i+1);
if(i % 27 == 0)
{
y = y + 20;
x = 10;
}
//g.drawString(Integer.toString(i),x,y);
g.drawString(getone,x,y);
x = x + 20;
i++ ;
count--;
}
// end draw:
g.dispose();
bi.flush();
// encode:
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
param.setQuality(1.0f, false);
encoder.setJPEGEncodeParam(param);
try {
encoder.encode(bi);
}
catch(IOException ioe) {
ioe.printStackTrace();
}
}
}
inde.jsp頁(yè)面:
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