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java实现图片上插入文字并保存

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这两天通过在网上查阅资料,了解了在图片上插入文字并保存的功能,下面记录一下。

工具类:PrintImage。

package com.learning.www.utils;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
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 {
 
  private Font    font   = new Font("黑体", Font.PLAIN, 25); // 添加字体的属性设置
 
  private Graphics2D g    = null;
 
  private int    fontsize = 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(Font font) {
    
    this.font = font;
  }
 
  /**
   * 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,Color color) {
    try {
      int w = img.getWidth();
      int h = img.getHeight();
      g = img.createGraphics();
      g.setBackground(Color.BLUE);
      
      
      //g.setColor(new Color(120, 120, 110));//设置字体颜色
      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;
  }
 
  
  /**
   * 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("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, 100, 10, w, h, null);
      g.dispose();
    } catch (Exception e) {
      System.out.println(e.getMessage());
    }
 
    return d;
  }
  /***
   * 插入描边的字体
   * @param img
   * @param content
   * @param w
   * @param h
   * @return
   */
  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;
  }
 
}

插入多条的格式相同的文字:

package com.learning.www.utils;
 
import java.awt.Color;
import java.awt.Font;
import java.awt.image.BufferedImage;
 
public class PrintJobToImg {
 
 public static void printJobToImg(PrintImage tt,BufferedImage d,String job1,String need1,String amount1,String salary1,int y) {
 
  
    if(null != job1 && !job1.equals("")) {
   need1 = "岗位职责:"+need1;
   int strleth = need1.length()+5;
   int num = strleth/40;
   int subindex = 0;
   int j = 40;
   //y = -350;
   String[] s1 = new String[num+1];
   tt.setFont(new Font("黑体",Font.BOLD, 28));
   tt.modifyImage(d, "职位:"+job1, -50, y, new Color(0,191,255));
   tt.modifyImage(d, "人数:"+amount1, -30+(30*(3+job1.length())), y, new Color(210,105,30));
   tt.modifyImage(d, "月薪:"+salary1, -10+(30*(6+job1.length()+amount1.length())), y, new Color(178,34,34));
   y = y+25;
   tt.setFont(new Font("黑体",Font.PLAIN, 24));
    if(num < 1 ) {
     System.out.println(num);
     tt.modifyImage(d, need1, -50, y+25,new Color(0,0,0));
    }else {
     for(int i = 0;i<num;i++) {
     s1[i] = need1.substring(subindex, j);
     tt.modifyImage(d, s1[i], -50, y,new Color(0,0,0));
     subindex=j;
     j+=40;
     y+=25;
     }
     if(strleth%40 != 0) {
     //System.out.println("不等于0");
     s1[num] = need1.substring(num * 40);
     tt.modifyImage(d, s1[num], -50, y,new Color(0,0,0));
     }
    }
   //tt.modifyImage(d, "岗位要求:"+need1, -50, y+25, new Color(0,0,0));
    }
 
 
 
 
 }
 
}

启动类:

package com.learning.www;
 
import java.awt.Color;
import java.awt.Font;
import java.awt.GraphicsEnvironment;
import java.awt.image.BufferedImage;
 
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
 
import com.learning.www.utils.PrintImage;
import com.learning.www.utils.PrintJobToImg;
 
@SpringBootApplication
@EnableAutoConfiguration
@EnableCaching
@MapperScan("com.learning.www.mapper")
public class LearningApplication {
 
 public static void main(String[] args) {
 SpringApplication.run(LearningApplication.class, args);
    PrintImage tt = new PrintImage();
    BufferedImage d = tt.loadImageLocal("D:\\test\\muban.jpg");
    String title = "撒大大是多少有限公司";
    int x = title.length() * 96;
    // 公司标题 72号字体==96px
    tt.setFont(new Font("造字工房力黑(非商用)常规体", Font.BOLD, 76));
    //tt.modifyImage(d, title, (1920-x)/2-960, -420, new Color(65,105,225));
    //tt.modifyShapImg(d, title, (1920-x)/2-960, -420);
    tt.modifyShapImg(d, title, (1920-x)/2, 130);
    
    //公司简介,限定字数
    tt.setFont(new Font("黑体",Font.PLAIN, 30));
    String str = "功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"
    +"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"
    +"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"
    +"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存"+"功能:可以实现在图片模板上写内容并保存";
    System.out.println(str.length());
    //计算字符串长度
    int strleth=str.length();
    //计算循环次数
    int num = strleth/20;
    //字符串截取第一位
    int subindex = 0;
    //字符串截取第二位
    int j = 20;
    //距离y轴的位置
    int y = -350;
    String[] s = new String[num+1];
    if(num < 1 ) {
    System.out.println(num);
    tt.modifyImage(d, str, -830, y,new Color(0,0,0));
    }else {
    for(int i = 0;i<num;i++) {
     s[i] = str.substring(subindex, j);
     tt.modifyImage(d, s[i], -830, y,new Color(0,0,0));
     subindex=j;
     j+=20;
     y+=35;
    }
    if(strleth%20 != 0) {
     //System.out.println("不等于0");
     s[num] = str.substring(num * 20);
     tt.modifyImage(d, s[num], -830, y,new Color(0,0,0));
    }
    }
    // 公司岗位6个
    String job1 = "普工";
    String amount1 = "3人";
    String salary1 = "4000元/月";
    String need1 = "吃苦耐劳,具有专业的技术能力。吃苦耐劳,具有专业的技术能力。吃苦耐劳,具有专业的技术能力。吃苦耐劳,具有专业的技术能力。吃苦耐劳,具有专业的技术能力。"
     + "吃苦耐劳,具有专业的技术能力。";
    y = -350;
    PrintJobToImg.printJobToImg(tt, d, job1, need1, amount1, salary1, y);
    PrintJobToImg.printJobToImg(tt, d, job1, need1, amount1, salary1, y+110);
    PrintJobToImg.printJobToImg(tt, d, job1, need1, amount1, salary1, y+220);
    PrintJobToImg.printJobToImg(tt, d, job1, need1, amount1, salary1, y+330);
    PrintJobToImg.printJobToImg(tt, d, job1, need1, amount1, salary1, y+440);
    PrintJobToImg.printJobToImg(tt, d, job1, need1, amount1, salary1, y+550);
//    tt.setFont(new Font("黑体",Font.PLAIN, 24));
//    if(null != job1 && !job1.equals("")) {
//   need1 = "岗位职责:"+need1;
//   strleth = need1.length()+5;
//   num = strleth/40;
//   subindex = 0;
//   j = 40;
//   y = -350;
//   String[] s1 = new String[num+1];
//   tt.modifyImage(d, "职位:"+job1, -50, y, new Color(0,191,255));
//   tt.modifyImage(d, "人数:"+amount1, -30+(30*(3+job1.length())), y, new Color(210,105,30));
//   tt.modifyImage(d, "月薪:"+salary1, -10+(30*(6+job1.length()+amount1.length())), y, new Color(178,34,34));
//   y = y+25;
//    if(num < 1 ) {
//     System.out.println(num);
//     tt.modifyImage(d, need1, -50, y+25,new Color(0,0,0));
//    }else {
//     for(int i = 0;i<num;i++) {
//     s1[i] = need1.substring(subindex, j);
//     tt.modifyImage(d, s1[i], -50, y,new Color(0,0,0));
//     subindex=j;
//     j+=40;
//     y+=25;
//     }
//     if(strleth%40 != 0) {
//     //System.out.println("不等于0");
//     s1[num] = need1.substring(num * 40);
//     tt.modifyImage(d, s1[num], -50, y,new Color(0,0,0));
//     }
//    }
//   //tt.modifyImage(d, "岗位要求:"+need1, -50, y+25, new Color(0,0,0));
//    }
    
    // 联系方式和抵地址
    String name = "张先生";
    String tel = "12334343443";
    String company = "盐都区高新区振兴路汇鑫大厦";
    tt.setFont(new Font("黑体",Font.BOLD, 40));
    tt.modifyImage(d, name, -650, 360,new Color(0,0,0));
    tt.modifyImage(d, tel, -450, 360,new Color(0,0,0));
    tt.modifyImage(d, company, -650, 440,new Color(0,0,0));
    
    
    //tt.modifyImage(d, str, -830, -100);
    tt.writeImageLocal("D:\\test\\cc.jpg", d);
    System.out.println("success");
    System.out.println(s[0]);
    System.out.println(s[0].length());
    
     GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
     String[] fontList = ge.getAvailableFontFamilyNames();
     for(int i=0;i<fontList.length;i++)
     {
        System.out.println("字体:"+fontList[i]);
     }
 
 }
}

实现效果:模板图片为:1920 x 1080 px。

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

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