演示
Poster实体类
import lombok.Data;
import java.awt.*;
/**
* @author ys
* @version 1.0
* @date 2022/12/5 17:51
* 类说明:Poster实体类
*/
@Data
public class Poster {
private int width;//海报的宽（像素为单位）
private int height;//海报的高
//头像
private String avatarUrl;//头像url
private int avatarX;//头像左上角横坐标
private int avatarY;//头像左上角纵坐标
private int avatarWidth;//头像宽
private int avatarHeight;//头像高
private boolean isCircle;//是否圆形头像
//名字
private String name;
private Font nameFont;
private Color nameColor;
private int nameX;
private int nameY;
//商品
private String goodsUrl;
private int goodsX;
private int goodsY;
private int goodsWidth;
private int goodsHeight;
//商品描述
private String desc;
private Font descFont;
private Color descColor;
private int descX;
private int descY;
//商品价格
private String price;
private Font priceFont;
private Color priceColor;
private int priceX;
private int priceY;
//测评结果标题
private String result;
private Font resultFont;
private Color resultColor;
private int resultX;
private int resultY;
//测评结果描述
private String result_content;
private Font result_contentFont;
private Color result_contentColor;
private int result_contentX;
private int result_contentY;
//小程序码
private String qrCodeUrl;
private int qrCodeX;
private int qrCodeY;
private int qrCodeWidth;
private int qrCodeHeight;
//提示1
private String tip1;
private Font tip1Font;
private Color tip1Color;
private int tip1X;
private int tip1Y;
//提示2
private String tip2;
private Font tip2Font;
private Color tip2Color;
private int tip2X;
private int tip2Y;
//底部栏
private Color footerColor;
private int footerWidth;
private int footerHeight;
private int footerX;
private int footerY;
//底部栏提示字
private String footerTip;
private Font footerTipFont;
private Color footerTipColor;
private int footerTipX;
private int footerTipY;
}Poster生成工具类
package com.example.documentdemo.utils.poster;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.net.URL;
import javax.imageio.ImageIO;
import sun.font.FontDesignMetrics;
/**
* @author ys
* @version 1.0
* @date 2022/12/5 17:53
*/
public class PosterUtil {
static Poster initPoster(Poster poster_) {
Poster poster = new Poster();
//画布
poster.setWidth(poster_.getWidth());
poster.setHeight(poster_.getHeight());
//头像
/* poster.setAvatarUrl(avatarUrl);
poster.setCircle(true);
poster.setAvatarX((int)(width/11.5));
poster.setAvatarY(height/28);
poster.setAvatarWidth(width/6);
poster.setAvatarHeight(width/6);
//名字
poster.setName(name);
poster.setNameFont(new Font("宋体",Font.PLAIN,width/24));
poster.setNameColor(new Color(33,33,33));
poster.setNameX(poster.getAvatarX()+poster.getAvatarWidth()+20);
poster.setNameY(poster.getAvatarY()+poster.getAvatarHeight()/2+15);*/
//商品
poster.setGoodsUrl(poster_.getGoodsUrl());
poster.setGoodsWidth(375); //banner图宽度填充满
poster.setGoodsHeight(150);
poster.setGoodsX((poster_.getWidth() - poster.getGoodsWidth()) / 2);
poster.setGoodsY(poster.getAvatarY() + poster.getAvatarHeight()); //+100是往下移动
//测评结果
poster.setDesc("测评结果");
poster.setDescColor(Color.GRAY);
int size = poster_.getWidth() / 17;
poster.setDescFont(new Font("宋体", Font.BOLD, 18));
poster.setDescX((poster_.getWidth() - "测评结果".length() * size) / 6 - 15);
poster.setDescY(poster.getGoodsY() + poster.getGoodsHeight() + (int) (poster_.getHeight() / 21.3) + 15);
//测评结果标题
poster.setPrice(poster_.getPrice());
poster.setPriceColor(Color.BLACK);
poster.setPriceFont(new Font("宋体", Font.BOLD, size));
poster.setPriceX((poster_.getWidth() - poster_.getPrice().length() * size) / 5);
poster.setPriceY(poster.getGoodsY() + poster.getGoodsHeight() + (int) (poster_.getHeight() / 10.6) + 18);
//测评说明
poster.setResult("测评说明");
poster.setResultColor(Color.GRAY);
poster.setResultFont(new Font("宋体", Font.BOLD, 18));
poster.setResultX((poster_.getWidth() - "测评说明".length() * size) / 6 - 15);
poster.setResultY(poster.getGoodsY() + poster.getGoodsHeight() + (int) (poster_.getHeight() / 21.3) + 90);
//测评说明描述
poster.setResult_content(poster_.getDesc());
poster.setResult_contentColor(Color.BLACK);
poster.setResult_contentFont(new Font("宋体", Font.BOLD, 17));
poster.setResult_contentX((3 * size) / 6 + 23);
poster.setResult_contentY(poster.getGoodsY() + poster.getGoodsHeight() + (int) (poster_.getHeight() / 21.3) + 120);
//小程序码
poster.setQrCodeUrl(poster_.getQrCodeUrl());
poster.setQrCodeWidth((int) (poster_.getWidth() / 2.85));
poster.setQrCodeHeight((int) (poster_.getWidth() / 2.85));
poster.setQrCodeX((int) (poster_.getWidth() / 16.5));
poster.setQrCodeY(poster_.getHeight() - poster.getQrCodeHeight() - (int) (poster_.getHeight() / 7.68));
//tips1
poster.setTip1("长按识别小程序码");
poster.setTip1Color(Color.BLACK);
poster.setTip1Font(new Font("宋体", Font.BOLD, poster_.getWidth() / 21));
poster.setTip1X(poster.getQrCodeX() + poster.getQrCodeWidth() + 20);
poster.setTip1Y(poster.getQrCodeY() + poster.getQrCodeHeight() / 2 + 10);
//tips2
poster.setTip2("咨询我们是专业的");//好物与好友一起分享
poster.setTip2Color(Color.GRAY);
poster.setTip2Font(new Font("宋体", Font.PLAIN, poster_.getWidth() / 25));
poster.setTip2X(poster.getQrCodeX() + poster.getQrCodeWidth() + 20);
poster.setTip2Y(poster.getQrCodeY() + poster.getQrCodeHeight() / 2 + 32);//90是这句问题与上面的间距
//footer
poster.setFooterColor(new Color(49, 196, 141));
poster.setFooterWidth(poster_.getWidth());
poster.setFooterHeight(poster_.getHeight() / 13);
poster.setFooterX(0);
poster.setFooterY(poster_.getHeight() - poster.getFooterHeight());
//footer tips
poster.setFooterTip("「心觉咨询」提供内容及技术支持");
poster.setFooterTipColor(Color.WHITE);
poster.setFooterTipFont(new Font("宋体", Font.BOLD, poster_.getWidth() / 21));
poster.setFooterTipX((poster_.getWidth() - (poster.getFooterTip().length() * poster_.getWidth() / 21)) / 2);
poster.setFooterTipY(poster_.getHeight() - poster.getFooterHeight() / 3);
return poster;
}
static void drawPoster(Poster poster) throws Exception {
long startTime = System.currentTimeMillis();
String qrCodeUrl = poster.getQrCodeUrl();
String goodsUrl = poster.getGoodsUrl();
String avatarUrl = poster.getAvatarUrl();
BufferedImage qrCodeImage = ImageIO.read(new URL(qrCodeUrl));
BufferedImage goodsImage = ImageIO.read(new URL(goodsUrl));
int width = poster.getWidth();
int height = poster.getHeight();
//画布
BufferedImage canvas = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D) canvas.getGraphics();
g.setBackground(Color.WHITE);//设置背景色
g.clearRect(0, 0, width, height);
// 设置文字抗锯齿
g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
/*//圆形头像
// BufferedImage newAvatar = circle(avatarUrl,poster.getAvatarWidth());
//画头像
g.drawImage(newAvatar.getScaledInstance(newAvatar.getWidth(), newAvatar.getHeight(), Image.SCALE_SMOOTH), poster.getAvatarX(), poster.getAvatarY(), null);
// 4. 写字（昵称）
g.setColor(poster.getNameColor());
g.setFont(poster.getNameFont());
g.drawString(poster.getName(), poster.getNameX(), poster.getNameY());*/
//画商品
// g.drawImage(Thumbnails.of(goodsImage).size(poster.getGoodsWidth(), poster.getGoodsHeight()).asBufferedImage(), poster.getGoodsX(), poster.getGoodsY(), null);
g.drawImage(goodsImage.getScaledInstance(poster.getGoodsWidth(), poster.getGoodsHeight(), Image.SCALE_SMOOTH), poster.getGoodsX(), poster.getGoodsY(), null);
//测评结果
g.setColor(poster.getDescColor());
g.setFont(poster.getDescFont());
g.drawString("测评结果", poster.getDescX(), poster.getDescY());
//测评结果标题
g.setColor(poster.getPriceColor());
g.setFont(poster.getPriceFont());
g.drawString(poster.getPrice(), poster.getPriceX(), poster.getPriceY());
//画测评说明
g.setColor(poster.getResultColor());
g.setFont(poster.getResultFont());
g.drawString(poster.getResult(), poster.getResultX(), poster.getResultY());
//画测评说明描述
/* g.setColor(poster.getResult_contentColor());
g.setFont(poster.getResult_contentFont());
g.drawString("结婚苏丹发挥撒旦反对萨苏打法苏丹法苏丹法", poster.getResult_contentX()+25, poster.getResult_contentY());*/
FontDesignMetrics metrics = FontDesignMetrics.getMetrics(poster.getResult_contentFont());
String zh = poster.getResult_content();
String[] rows = makeLineFeed(zh, metrics, 300).split("\n");
int y = poster.getResult_contentY();
for (int i = 0; i < rows.length; i++) {
g.setColor(poster.getResult_contentColor());
g.setFont(poster.getResult_contentFont());
if (i > 0) {
y += 28;
}
if (i > 4) {
break;
} else if (i == 4) {
g.drawString(rows[i].substring(0, rows[i].length() - 3) + " ...", poster.getResult_contentX() + 25, y);
break;
}
g.drawString(rows[i], poster.getResult_contentX() + 25, y);
}
//画小程序码
g.drawImage(qrCodeImage.getScaledInstance(poster.getQrCodeWidth(), poster.getQrCodeHeight(), Image.SCALE_SMOOTH),
poster.getQrCodeX(), poster.getQrCodeY(), null);
//画tips1
g.setColor(poster.getTip1Color());
g.setFont(poster.getTip1Font());
g.drawString(poster.getTip1(), poster.getTip1X(), poster.getTip1Y());
//画tips2
g.setColor(poster.getTip2Color());
g.setFont(poster.getTip2Font());
g.drawString(poster.getTip2(), poster.getTip2X(), poster.getTip2Y());
//画底部栏
g.setColor(poster.getFooterColor());
g.fillRect(poster.getFooterX(), poster.getFooterY(), poster.getFooterWidth(), poster.getFooterHeight());
//画底部栏提示
g.setColor(poster.getFooterTipColor());
g.setFont(poster.getFooterTipFont());
g.drawString(poster.getFooterTip(), poster.getFooterTipX(), poster.getFooterTipY());
g.dispose();
File resultImg = new File("D:\\demo.png");
ImageIO.write(canvas, "png", resultImg);
//上传服务器代码
//ByteArrayOutputStream bs = new ByteArrayOutputStream();
//ImageOutputStream imgOut = ImageIO.createImageOutputStream(bs);
//ImageIO.write(canvas, "png", imgOut);
//InputStream inSteam = new ByteArrayInputStream(bs.toByteArray());
//String url = OSSFactory.build().upload(inSteam, UUID.randomUUID().toString()+".png");
System.out.println("生成成功！");
System.out.println("耗时: " + (System.currentTimeMillis() - startTime) / 1000.0 + "s");
System.out.println("生成文件路径: " + resultImg.getAbsolutePath());
}
private static BufferedImage circle(String avatar_img, int width) throws Exception {
BufferedImage avatar = ImageIO.read(new URL(avatar_img));
BufferedImage newAvatar = new BufferedImage(width, width, BufferedImage.TYPE_INT_ARGB);
Ellipse2D.Double shape = new Ellipse2D.Double(0, 0, width, width);
Graphics2D g2 = newAvatar.createGraphics();
newAvatar = g2.getDeviceConfiguration().createCompatibleImage(width, width, Transparency.TRANSLUCENT);
g2 = newAvatar.createGraphics();
g2.setComposite(AlphaComposite.Clear);
g2.fill(new Rectangle(newAvatar.getWidth(), newAvatar.getHeight()));
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 1.0f));
g2.setClip(shape);
// 使用 setRenderingHint 设置抗锯齿
g2 = newAvatar.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.fillRoundRect(0, 0, width, width, width, width);
g2.setComposite(AlphaComposite.SrcIn);
g2.drawImage(avatar, 0, 0, width, width, null);
g2.dispose();
return newAvatar;
}
//文本换行处理
public static String makeLineFeed(String zh, FontDesignMetrics metrics, int max_width) {
StringBuilder sb = new StringBuilder();
int line_width = 0;
for (int i = 0; i < zh.length(); i++) {
char c = zh.charAt(i);
sb.append(c);
// 如果主动换行则跳过
if (sb.toString().endsWith("\n")) {
line_width = 0;
continue;
}
// FontDesignMetrics 的 charWidth() 方法可以计算字符的宽度
int char_width = metrics.charWidth(c);
line_width += char_width;
// 如果当前字符的宽度加上之前字符串的已有宽度超出了海报的最大宽度，则换行
if (line_width >= max_width - char_width) {
line_width = 0;
sb.append("\n");
}
}
return sb.toString();
}
public static void main(String[] args) throws Exception {
String qrCodeUrl = "http://m.xinjuenet.com/images/banner/i-wx.jpg"; //二维码
String goodsUrl = "http://m.xinjuenet.com/images/banner/b-xldh.jpg"; //顶部图片
String avatarUrl = "http://images.xinjuenet.com//20190529140101.jpg"; //头像
String name = "和自己对话";
String desc = "沉默王二1，《Web 全栈开发进阶之路》作者；一个不止写代码的程序员，还写有趣有益的文字，给不喜欢严肃的你。沉默王二，《Web 全栈开发进阶之路》作者；一个不止写代码的程序员，还写有趣有益的文字，给不喜欢严肃的你。";
String price = "重度抑郁1";
Poster poster_ = new Poster();
poster_.setWidth(375);
poster_.setHeight(670);
poster_.setQrCodeUrl(qrCodeUrl); //二维码
poster_.setGoodsUrl(goodsUrl); //顶部banner
poster_.setDesc(desc); //测评结果说明
poster_.setPrice(price); //测评结果标题
poster_.setAvatarUrl(avatarUrl);
poster_.setName(name);
Poster poster = PosterUtil.initPoster(poster_);
PosterUtil.drawPoster(poster);
}
}pom依赖
<dependency>
<groupId>org.sejda.imageio</groupId>
<artifactId>webp-imageio</artifactId>
<version>0.1.6</version>
</dependency>
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