//这个代码网上很常见,不过我找到的都是加一行的。修改后自动换行,见方法list2()package cloud.com;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;import java.util.ArrayList;import java.util.List;public class ImageT { private Font font = new Font("", Font.PLAIN, 20);// 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; /** * 修改图片,返回修改后的图片缓冲区 */ public BufferedImage modifyImage(BufferedImage img, String content, int x, int y) { 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; } Listls = list2(content,w-this.x,this.fontsize); for(int i=0;i */ public List list2(String text,int maxLength,int fontSzie){ int length = 0; int lengthcl=maxLength/fontSzie; List list = new ArrayList (); StringBuffer sb = new StringBuffer(); for (int i = 0; i < text.length(); i++) { if (new String(text.charAt(i) + "").getBytes().length > 1) { length += 2; } else { length += 1; } if((length+1)/2<=lengthcl){ sb.append(text.charAt(i)); }else{ i--; length=0; list.add(sb.toString()); sb= new StringBuffer(); } } return list; } 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) { ImageT tt = new ImageT(); String str = "一个初创却无可ssd限量的团队:我们有来自于fff五百强企业的技术we宅男,有来自于知名房企的品牌经理,有来自于广告行业的资深销售。我们为同一个目标凝聚,励志做一个互联网时代企业革新的引导者,好伙伴。 "; BufferedImage d = tt.loadImageLocal("e:\\IMG_0201.JPG"); tt.setFont("楷体", 30); tt.writeImageLocal("e:\\cc.jpg",tt.modifyImage(d,str,410,40)); System.out.println("success"); } /** * 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()); } } } /** * 设置文字字体 */ public void setFont(String fontStyle, int fontSize) { this.fontsize = fontSize; this.font = new Font(fontStyle, Font.PLAIN, fontSize); }}