java 操作编辑图片

package com.alarmtech.basic.utils;

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.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.URL;

import javax.imageio.ImageIO;


public class PrintImage {

  // 添加字体的属性设置
  private Font font = new Font("黑体", Font.PLAIN, 25);

  private Graphics2D g = null;

  private int fontsize = 0;

  
  public BufferedImage loadImageLocal(String imgName) {
    try {
      return ImageIO.read(new File(imgName));
    } catch (IOException e) {
      System.out.println(e.getMessage());
    }
    return null;
  }

  
  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;
  }

  
  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());
      }
    }
  }

  
  public void setFont(Font font) {

    this.font = font;
  }

  
  public BufferedImage modifyImage(BufferedImage img, Object content, int x, int y,Color color) {
    try {
      int w = img.getWidth();
      int h = img.getHeight();
      g = img.createGraphics();
      g.setBackground(Color.BLUE);
      g.setColor(color);//设置字体颜色
      g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
      g.setStroke(new BasicStroke(3));
      if (this.font != null) {
        g.setFont(this.font);
      }
      if (content != null) {
        g.translate(w / 2, h / 2);
        //g.rotate(8 * Math.PI / 180);
        g.drawString(content.toString(), x, y);
      }
      g.dispose();
    } catch (Exception e) {
      System.out.println(e.getMessage());
    }

    return img;
  }


  
  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("www.hi.baidu.com?xia_mingjian", 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, 10, 10, w, h, null);
      g.dispose();
    } catch (Exception e) {
      System.out.println(e.getMessage());
    }
    return d;
  }

  
  public BufferedImage modifyImages(BufferedImage b, BufferedImage d,int x,int y){
    try {
      int width = b.getWidth();
      int height = b.getHeight();
      Image image=b.getScaledInstance(width, height, Image.SCALE_SMOOTH);
      BufferedImage bufferedImage2=new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR);
      Graphics2D g = bufferedImage2.createGraphics();
      g.drawImage(image, 0, 0,null);
      g.drawImage(d, x, y, 50, 50, null);
      g.dispose();
      return bufferedImage2;
    } catch (Exception e) {
      System.out.println(e.getMessage());
    }
    return b;
  }

  public static void main(String[] args) throws IOException {
    PrintImage tt = new PrintImage();
    BufferedImage d = tt.loadImageLocal("e://certificate.png");
    BufferedImage nImage = tt.loadImageUrl("http://sc.adminbuy.cn/uploads/allimg/210326/1-210326132K9-50.png");
    d=tt.modifyImages(d,nImage,10,10);
    tt.modifyImage(d, "dataMap.get(certificateTemplateParams.getVarName())", 50, 50,new Color(0,0,0));
    tt.writeImageLocal("e://certificate2.png", d);
  }

  
  public BufferedImage modifyShapImg(BufferedImage img, String content, int w, int h) {
//    int w = img.getWidth();
//    int h = img.getHeight();
    g = img.createGraphics();

    //Font f = new Font("Courier New", Font.BOLD, 140);
    GlyphVector v = font.createGlyphVector(g.getFontMetrics(font).getFontRenderContext(), content);
    Shape shape = v.getOutline();
    if (content != null) {
      g.translate(w, h);
      //g.rotate(8 * Math.PI / 180);
      //g.drawString(content.toString(), x, y);
    }
    g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
    g.setColor(new Color(0,90,160));
    g.fill(shape);
    g.setColor(new Color(248,248,255));
    g.setStroke(new BasicStroke(2));
    g.draw(shape);

    return img;
  }
}