java实现图片上插入文字并保存

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。