java向图片上写字,两个图片合并的方法
代码:
- 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");
- }
- }