public static void main(String[] args)

     {

         try

         {

             File textFile = new File("F:\\java56班\\eclipse-SDK-4.2-win32\\1.txt");

             File imageFile  = new File("F:\\java56班\\eclipse-SDK-4.2-win32\\1.png");

             TextToImage texttoimage = new TextToImage(textFile, imageFile);

             texttoimage.convert();

         }

         catch (Exception e)

         {

             e.printStackTrace();

         }

     }

 import java.awt.Color;

 import java.awt.Font;

 import java.awt.Graphics;

 import java.awt.image.BufferedImage;

 import java.io.BufferedReader;

 import java.io.File;

 import java.io.FileNotFoundException;

 import java.io.FileOutputStream;

 import java.io.FileReader;

 import java.io.IOException;

 import com.sun.image.codec.jpeg.JPEGImageEncoder;

 import com.sun.image.codec.jpeg.JPEGCodec;

 public class TextToImage {

     /** 文本文件  */

     private File textFile;

     /** 图片文件 */

     private File imageFile;

     /** 图片 */

     private BufferedImage image;

     /** 图片宽度  */

     private final int IMAGE_WIDTH = ;

     /** 图片高度 */

     private final int IMAGE_HEIGHT = ;

     /** 图片类型  */

     private final int IMAGE_TYPE = BufferedImage.TYPE_INT_RGB;

     /**

      * 构造函数

      * @param textFile 文本文件

      * @param imageFile 图片文件

      */

     public TextToImage(File textFile,File imageFile){

         this.textFile = textFile;

         this.imageFile = imageFile;

         this.image = new BufferedImage(IMAGE_WIDTH, IMAGE_HEIGHT, IMAGE_TYPE);

     }

     /**

      * 将文本文件里文字，写入到图片中保存

      * @return boolean  true，写入成功；false，写入失败

      */

     public boolean convert() {

         //读取文本文件

         BufferedReader reader = null;

         try {

             reader = new BufferedReader(new FileReader(textFile));

         } catch (FileNotFoundException e) {

             e.printStackTrace();

             return false;

         }

         //获取图像上下文

         Graphics g = createGraphics(image);

         String line;

         //图片中文本行高

         final int Y_LINEHEIGHT = ;

         int lineNum = ;

         try {

             while((line = reader.readLine()) != null){

                 g.drawString(line, , lineNum * Y_LINEHEIGHT);

                 lineNum++;

             }

             g.dispose();

             //保存为jpg图片

             FileOutputStream fos = new FileOutputStream(imageFile);

             JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(fos);

             encoder.encode(image);

             fos.close();

         } catch (IOException e) {

             e.printStackTrace();

             return false;

         }

         return true;

     }

     /**

      * 获取到图像上下文

      * @param image 图片

      * @return Graphics

      */

     private Graphics createGraphics(BufferedImage image){

         Graphics g = image.createGraphics();

         g.setColor(null); //设置背景色

         g.fillRect(, , IMAGE_WIDTH, IMAGE_HEIGHT);//绘制背景

         g.setColor(Color.BLACK); //设置前景色

         g.setFont(new Font("微软雅黑", Font.PLAIN, )); //设置字体

         return g;

     }