java 在图片上写字,两个图片合并的实现方法

实例如下：

package writeimg; 
import javax.imageio.ImageIO; 
import java.awt.Color; 
import java.awt.Font; 
import java.awt.Graphics2D; 
import java.awt.image.BufferedImage; 
import java.io.File; 
import java.io.IOException; 
import java.net.URL; 
  
  
public class pic { 
  
  private Font font = new Font("华文彩云", Font.PLAIN, 40);// 添加字体的属性设置 
  
  private Graphics2D g = null; 
  
  private int fontsize = 0; 
  
  private int x = 0; 
  
  private int y = 0; 
  
  /**
   * 导入本地图片到缓冲区
   */ 
  public BufferedImage loadImageLocal(String imgName) { 
    try { 
      return ImageIO.read(new File(imgName)); 
    } catch (IOException e) { 
      System.out.println(e.getMessage()); 
    } 
    return null; 
  } 
  
  /**
   * 导入网络图片到缓冲区
   */ 
  public BufferedImage loadImageUrl(String imgName) { 
    try { 
      URL url = new URL(imgName); 
      return ImageIO.read(url); 
    } catch (IOException e) { 
      System.out.println(e.getMessage()); 
    } 
    return null; 
  } 
  
  /**
   * 生成新图片到本地
   */ 
  public void writeImageLocal(String newImage, BufferedImage img) { 
    if (newImage != null && img != null) { 
      try { 
        File outputfile = new File(newImage); 
        ImageIO.write(img, "jpg", outputfile); 
      } catch (IOException e) { 
        System.out.println(e.getMessage()); 
      } 
    } 
  } 
  
  /**
   * 设定文字的字体等
   */ 
  public void setFont(String fontStyle, int fontSize) { 
    this.fontsize = fontSize; 
    this.font = new Font(fontStyle, Font.PLAIN, fontSize); 
  } 
  
  /**
   * 修改图片,返回修改后的图片缓冲区（只输出一行文本）
   */ 
  public BufferedImage modifyImage(BufferedImage img, Object content, int x, 
      int y) { 
  
    try { 
      int w = img.getWidth(); 
      int h = img.getHeight(); 
      g = img.createGraphics(); 
      g.setBackground(Color.WHITE); 
      g.setColor(Color.orange);//设置字体颜色 
      if (this.font != null) 
        g.setFont(this.font); 
      // 验证输出位置的纵坐标和横坐标 
      if (x >= h || y >= w) { 
        this.x = h - this.fontsize + 2; 
        this.y = w; 
      } else { 
        this.x = x; 
        this.y = y; 
      } 
      if (content != null) { 
        g.drawString(content.toString(), this.x, this.y); 
      } 
      g.dispose(); 
    } catch (Exception e) { 
      System.out.println(e.getMessage()); 
    } 
  
    return img; 
  } 
  
  /**
   * 修改图片,返回修改后的图片缓冲区（输出多个文本段） xory：true表示将内容在一行中输出；false表示将内容多行输出
   */ 
  public BufferedImage modifyImage(BufferedImage img, Object[] contentArr, 
      int x, int y, boolean xory) { 
    try { 
      int w = img.getWidth(); 
      int h = img.getHeight(); 
      g = img.createGraphics(); 
      g.setBackground(Color.WHITE); 
      g.setColor(Color.RED); 
      if (this.font != null) 
        g.setFont(this.font); 
      // 验证输出位置的纵坐标和横坐标 
      if (x >= h || y >= w) { 
        this.x = h - this.fontsize + 2; 
        this.y = w; 
      } else { 
        this.x = x; 
        this.y = y; 
      } 
      if (contentArr != null) { 
        int arrlen = contentArr.length; 
        if (xory) { 
          for (int i = 0; i < arrlen; i++) { 
            g.drawString(contentArr[i].toString(), this.x, this.y); 
            this.x += contentArr[i].toString().length() 
                * this.fontsize / 2 + 5;// 重新计算文本输出位置 
          } 
        } else { 
          for (int i = 0; i < arrlen; i++) { 
            g.drawString(contentArr[i].toString(), this.x, this.y); 
            this.y += this.fontsize + 2;// 重新计算文本输出位置 
          } 
        } 
      } 
      g.dispose(); 
    } catch (Exception e) { 
      System.out.println(e.getMessage()); 
    } 
  
    return img; 
  } 
  
  /**
   * 修改图片,返回修改后的图片缓冲区（只输出一行文本）
   * 
   * 时间:2007-10-8
   * 
   * @param img
   * @return
   */ 
  public BufferedImage modifyImageYe(BufferedImage img) { 
  
    try { 
      int w = img.getWidth(); 
      int h = img.getHeight(); 
      g = img.createGraphics(); 
      g.setBackground(Color.WHITE); 
      g.setColor(Color.blue);//设置字体颜色 
      if (this.font != null) 
        g.setFont(this.font); 
      g.drawString("reyo.cn", w - 85, h - 5); 
      g.dispose(); 
    } catch (Exception e) { 
      System.out.println(e.getMessage()); 
    } 
  
    return img; 
  } 
  
  public BufferedImage modifyImagetogeter(BufferedImage b, BufferedImage d) { 
  
    try { 
      int w = b.getWidth(); 
      int h = b.getHeight(); 
        
  
      g = d.createGraphics(); 
      g.drawImage(b, 100, 10, w, h, null); 
      g.dispose(); 
    } catch (Exception e) { 
      System.out.println(e.getMessage()); 
    } 
  
    return d; 
  } 
  
  public static void main(String[] args) { 
  
    pic tt = new pic(); 
  
    BufferedImage d = tt.loadImageLocal("D:\\11.jpg"); 
//   BufferedImage b = tt 
//       .loadImageLocal("E:\\文件(word,excel,pdf,ppt.txt)\\zte-logo.png"); 
     tt.writeImageLocal("D:\\cc.jpg",tt.modifyImage(d,"西昌苹果",90,90) 
    //往图片上写文件 
     ); 
  
    //tt.writeImageLocal("D:\\cc.jpg", tt.modifyImagetogeter(b, d)); 
    //将多张图片合在一起 
    System.out.println("success"); 
  } 
  
}

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