java实现在图片上编辑文本内容

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");
    }
}