JAVA txt文件生成JPG图片水印文章

小试牛刀，今天在公司完成了 txt文件生成jpg连续图片，分享一下  代码不是很完善 但是能实现（可以直接copy到你的机器运行）希望各位大牛指点

缺陷就是耗费时间。

package picture;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import javax.imageio.ImageIO;

public class DrawTest4 {

 public static void pressText(String pressText, String targetImg,
   String fontName, int fontStyle, Color color, Color col,
   int fontSize, int x, int y) throws Exception {
  File file = new File(targetImg);
  Image src = ImageIO.read(file);
  BufferedImage image = new BufferedImage(src.getWidth(null), src
    .getHeight(null), BufferedImage.TYPE_INT_RGB);
  Graphics2D g2 = (Graphics2D) image.createGraphics();
  g2.drawImage(src, 0, 0, src.getWidth(null), src.getHeight(null), null);
  g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
    RenderingHints.VALUE_ANTIALIAS_ON);
  GlyphVector gv = new Font(fontName, fontStyle, fontSize)
    .createGlyphVector(g2.getFontRenderContext(), pressText);
  Shape sha = gv.getOutline();
  g2.setStroke(new BasicStroke(4f)); // 描边像素

  g2.translate(x, (y + fontSize / 2)); // 放置汉字的位置
  g2.setColor(col); // 描边颜色
  g2.draw(sha);
  g2.setColor(color);// 填充字体颜色
  g2.fill(sha);
  g2.dispose();
  ImageIO.write(image, "jpg", file);
 }

 public static void copyFile(String oldPath, String newPath) {
  try {
   int bytesum = 0;
   int byteread = 0;
   File oldfile = new File(oldPath);
   if (oldfile.exists()) { // 文件存在时
    InputStream inStream = new FileInputStream(oldPath); // 读入原文件
    FileOutputStream fs = new FileOutputStream(newPath);
    byte[] buffer = new byte[1444];
    while ((byteread = inStream.read(buffer)) != -1) {
     bytesum += byteread; // 字节数 文件大小
     fs.write(buffer, 0, byteread);
    }
    inStream.close();
    fs.close();
   }
  } catch (Exception e) {
   System.out.println("复制文件操作出错");
   e.printStackTrace();

  }
 }

 @SuppressWarnings("static-access")
 public static void resize(String filePath, int height, int width, boolean bb) {
  try {
   double ratio = 0.0; // 缩放比例
   File f = new File(filePath);
   BufferedImage bi = ImageIO.read(f);
   Image itemp = bi.getScaledInstance(width, height, bi.SCALE_SMOOTH);
   // 计算比例
   if ((bi.getHeight() > height) || (bi.getWidth() > width)) {
    if (bi.getHeight() > bi.getWidth()) {
     ratio = (new Integer(height)).doubleValue()
       / bi.getHeight();
    } else {
     ratio = (new Integer(width)).doubleValue() / bi.getWidth();
    }
    AffineTransformOp op = new AffineTransformOp(AffineTransform
      .getScaleInstance(ratio, ratio), null);
    itemp = op.filter(bi, null);
   }
   if (bb) {
    BufferedImage image = new BufferedImage(width, height,
      BufferedImage.TYPE_INT_RGB);
    Graphics2D g = image.createGraphics();
    g.setColor(Color.white);
    g.fillRect(0, 0, width, height);
    if (width == itemp.getWidth(null))
     g.drawImage(itemp, 0, (height - itemp.getHeight(null)) / 2,
       itemp.getWidth(null), itemp.getHeight(null),
       Color.white, null);
    else
     g.drawImage(itemp, (width - itemp.getWidth(null)) / 2, 0,
       itemp.getWidth(null), itemp.getHeight(null),
       Color.white, null);
    g.dispose();
    itemp = image;
   }
   ImageIO.write((BufferedImage) itemp, "jpg", f);
  } catch (IOException e) {
   e.printStackTrace();
  }
 }

 public static void addText() {
  try {

   FileInputStream inputstream = new FileInputStream("f:/test/t1.txt");// 将TXT文件内容转换成String类型
   StringBuffer buffer = new StringBuffer();
   String line; // 用来保存每行读取的内容
   BufferedReader bufferreader = new BufferedReader(
     new InputStreamReader(inputstream));
   line = bufferreader.readLine(); // 读取第一行
   while (line != null) { // 如果 line 为空说明读完了
    buffer.append(line); // 将读到的内容添加到 buffer 中
    line = bufferreader.readLine(); // 读取下一行
   }
   // 将读到 buffer 中的内容写出来
   inputstream.close();
   String filetext = buffer.toString();
   System.out.println("该文本共有" + filetext.length() + "个字符");
   String tmp = "";
   int length = 18;
   int height = 45;
   String oldFile = "F:/11.jpg";
   String newFile = "F:/test/11.jpg";
   int i;
   int x=0;
   int t = 0;
   int cent = 1;
   while (filetext.length()-x>0) {
    copyFile(oldFile, newFile);
    File f = new File(newFile);
    f.renameTo(new File("F:/test/" + cent + ".jpg"));
    resize("F:/test/" + cent + ".jpg", 455, 640, true);// 我先将图设置成规定的大小！！
    for (i = 0; i < filetext.length() / length
      && height * (i + 1) <= 420; i++) {
     int k = 0;
     for (int j = 0; j < length;) {
      tmp = filetext.substring(x+length * i + j, x+length * i + j
        + 1);
      pressText(tmp, "F:/test/" + cent + ".jpg", "微软雅黑",
        Font.CENTER_BASELINE, Color.BLACK, Color.WHITE,
        28, 25 + k, (i + 1) * height);
      j++;
      t = j + length * i;
      k = k + 33;
     }
    }
    x+=t;
    System.out.print("此时已经输出字符数：");
    System.out.println(x);
    cent++;
   }
  } catch (Exception e) {
   e.printStackTrace();
  }
 }

 public static void main(String[] args) {

  addText();

 }
}