Java后台图片怎样改 java修改图片内容

package com.yin.text;

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 javax.imageio.ImageIO;

/**
 * 在图片上编辑文本内容
 * @version 2018-2-27 上午11:12:09
 *
 */
public class Picture1
{
     private Font       font     = new Font("宋体", Font.PLAIN, 12); // 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;  
    } 
    
    /**  
     * 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());  
            }  
        }  
    } 
    
    /**  
     * 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.RED);//设置背景颜色  
            g.setColor(Color.BLUE);//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;  
    }  
    public static void main(String[] args) {  
        
        Picture1 tt = new Picture1();  
  
        BufferedImage d = tt.loadImageLocal("C:/1.jpg");  
        
        //往图片上编辑内容    
        tt.writeImageLocal("C:/new1.jpg", tt.modifyImage(d, "这是文本内容啦啦啦啦啦", 0, 200));  
      
        System.out.println("success");  
    } 
}

 

if you want to go fast,go alone,if you want to go far,go together