DrawingUtils類
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.UUID;
/**
* @Description? ? 生成微信小程序的海報(bào)分享 雷则， 并封裝一個(gè)隊(duì)圖片操作的代碼
* @auther 葉子
* @create 2019-12-21 17:01
*/
public class DrawingUtils {
private Fontfont =new Font("宋體", Font.BOLD,25);// 添加字體的屬性設(shè)置
? ? private Graphics2Dg =null;
private Graphics2DJ =null;
private int fontsize =0;
private int x =600;
private int y =1200;
/**
* 導(dǎo)入本地圖片到緩沖區(qū)
*/
? ? public BufferedImage loadImageLocal(String imgName) {
try {
return ImageIO.read(new File(imgName));
}catch (IOException e) {
System.out.println(e.getMessage());
}
return null;
}
/**
* 導(dǎo)入網(wǎng)絡(luò)圖片到緩沖區(qū)
*/
? ? 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;
}
/**
* 生成新圖片到本地
*/
? ? 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());
}
}
}
/**
* 設(shè)定文字的字體等
*/
? ? public void setFont(String fontStyle,int fontSize) {
this.fontsize = fontSize;
this.font =new Font(fontStyle, Font.PLAIN, fontSize);
}
/**
* 修改圖片,返回修改后的圖片緩沖區(qū)（只輸出一行文本）
*/
? ? public BufferedImage modifyImage(BufferedImage img, String content,int x,int y, Font font, Color color) {
try {
g = img.createGraphics();
g.setBackground(Color.WHITE);
g.setColor(color);// 設(shè)置字體顏色
? ? ? ? ? ? if (font !=null)
g.setFont(font);
// 驗(yàn)證輸出位置的縱坐標(biāo)和橫坐標(biāo)
? ? ? ? ? ? if (content !=null) {
g.drawString(content, x, y);
}
g.dispose();
}catch (Exception e) {
System.out.println(e.getMessage());
}
return img;
}
/**
* 修改圖片,返回修改后的圖片緩沖區(qū)（輸出多個(gè)文本段） xory：true表示將內(nèi)容在一行中輸出度迂；false表示將內(nèi)容多行輸出
*/
? ? public BufferedImage modifyImage(BufferedImage img, Object[] contentArr,int x,int y,boolean xory) {
try {
int w = img.getWidth();
int h = img.getHeight();
g = img.createGraphics();
g.setBackground(Color.white);
g.setColor(Color.black);
if (this.font !=null)
g.setFont(this.font);
// 驗(yàn)證輸出位置的縱坐標(biāo)和橫坐標(biāo)
? ? ? ? ? ? if (x >= h || y >= w) {
this.x = h -this.fontsize +2;
this.y = w;
}else {
this.x = x;
this.y = y;
}
if (contentArr !=null) {
int arrlen = contentArr.length;
if (xory) {
for (int i =0; i < arrlen; i++) {
g.drawString(contentArr[i].toString(),this.x,this.y);
this.x += contentArr[i].toString().length() *this.fontsize /2 +33;// 重新計(jì)算文本輸出位置
? ? ? ? ? ? ? ? ? ? }
}else {
for (int i =0; i < arrlen; i++) {
g.drawString(contentArr[i].toString(),this.x,this.y);
this.y +=this.fontsize +2+33;// 重新計(jì)算文本輸出位置
? ? ? ? ? ? ? ? ? ? }
}
}
g.dispose();
}catch (Exception e) {
System.out.println(e.getMessage());
}
return img;
}
/**
* 修改圖片,返回修改后的圖片緩沖區(qū)（只輸出一行文本）
*
* 時(shí)間:2019-12-23
*
? ? * @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.RED);// 設(shè)置字體顏色
? ? ? ? ? ? if (this.font !=null)
g.setFont(new Font("宋體",Font.BOLD,35));
g.drawString("禰豆子",50,550);
g.setFont(new Font("宋體",Font.BOLD,25));
g.drawString("￥1000",50,580);
g.setFont(new Font("宋體",Font.BOLD,25));
g.drawString("如果我是DJ",180,840);
g.drawString("分享商品可獲取商品返利",50 ,900);
g.dispose();
}catch (Exception e) {
System.out.println(e.getMessage());
}
return img;
}
/**
* 合成圖片
? ? * @param b 圖片 1
? ? * @param d 圖片 2
? ? * @param X
? ? * @param Y
? ? * @return
? ? */
? ? public BufferedImage modifyImagetogeter(BufferedImage b, BufferedImage d, BufferedImage f , BufferedImage commodit ,int X,int Y) {
try {
int w = b.getWidth();
int h = b.getHeight();
g = d.createGraphics();
g.drawImage(b, X, Y, w, h,null);
g.drawImage(f ,50 ,770 ,100 ,100 ,null);
g.drawImage(commodit ,0 ,0 ,514 ,500 ,null);
g.dispose();
}catch (Exception e) {
System.out.println(e.getMessage());
}
return d;
}
/**
* 從url中讀取圖片
*
? ? * @param urlHttp
? ? * @param path
? ? */
? ? public static String getPicture(String urlHttp, String path) {
int machineId =1;// 最大支持1-9個(gè)集群機(jī)器部署
? ? ? ? int hashCodeV = UUID.randomUUID().toString().hashCode();
if (hashCodeV <0) {// 有可能是負(fù)數(shù)
? ? ? ? ? ? hashCodeV = -hashCodeV;
}
String file = path + machineId + String.format("%015d", hashCodeV) +".jpg";
try {
URL url =new URL(urlHttp);
BufferedImage img = ImageIO.read(url);
ImageIO.write(img,"jpg",new File(file));
}catch (Exception e) {
e.printStackTrace();
}
return file;
}
public static void pichead(String url, String path)throws MalformedURLException, IOException {
BufferedImage avatarImage = ImageIO.read(new URL(url));
int width =84;// 如果剪切出來的圖片畫質(zhì)模糊惭墓，請(qǐng)將width 調(diào)大點(diǎn).
// 透明底的圖片
? ? ? ? BufferedImage formatAvatarImage =new BufferedImage(width, width, BufferedImage.TYPE_4BYTE_ABGR);
Graphics2D graphics = formatAvatarImage.createGraphics();
// 把圖片切成一個(gè)圓
? ? ? ? graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// 留一個(gè)像素的空白區(qū)域腊凶，這個(gè)很重要拴念，畫圓的時(shí)候把這個(gè)覆蓋
? ? ? ? int border =1;
// 圖片是一個(gè)圓型
? ? ? ? Ellipse2D.Double shape =new Ellipse2D.Double(border, border, width - border *2, width - border *2);
// 需要保留的區(qū)域
? ? ? ? graphics.setClip(shape);
graphics.drawImage(avatarImage, border, border, width - border *2, width - border *2,null);
graphics.dispose();
// 在圓圖外面再畫一個(gè)圓
// 新創(chuàng)建一個(gè)graphics，這樣畫的圓不會(huì)有鋸齒
? ? ? ? graphics = formatAvatarImage.createGraphics();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
int border1 =3;
// 畫筆是4.5個(gè)像素划煮，BasicStroke的使用可以查看下面的參考文檔
// 使畫筆時(shí)基本會(huì)像外延伸一定像素缔俄，具體可以自己使用的時(shí)候測(cè)試
? ? ? ? Stroke s =new BasicStroke(4.5F, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
graphics.setStroke(s);
graphics.setColor(Color.WHITE);
graphics.drawOval(border1, border1, width - border1 *2, width - border1 *2);
graphics.dispose();
OutputStream os =new FileOutputStream(path);// 發(fā)布項(xiàng)目時(shí)器躏，如：Tomcat 他會(huì)在服務(wù)器
//本地tomcat webapps文件下創(chuàng)建此文件名
? ? ? ? ImageIO.write(formatAvatarImage,"PNG", os);
os.close();
}
/**
* 刪除文件
*
? ? * @param filedel
? ? */
? ? public static void filedel(String filedel) {
File file =new File(filedel);
if (!file.exists()) {
System.out.println("文件不存在");
}else {
System.out.println("存在文件");
file.delete();// 刪除文件
? ? ? ? }
}
/**
* 調(diào)整bufferedimage大小
? ? * @param source BufferedImage 原始image
? ? * @param targetW int? 目標(biāo)寬
? ? * @param targetH int? 目標(biāo)高
? ? * @param flag boolean 是否同比例調(diào)整
? ? * @return BufferedImage? 返回新image
*/
? ? private static BufferedImage resizeBufferedImage(BufferedImage source,int targetW,int targetH,boolean flag ,int state) {
int type = source.getType();
BufferedImage target =null;
double xex =0.5;
double xey =4;
double sx=0;
double sy =0;
if(state ==1){
sx = (double) targetW / source.getWidth() - xex;
sy = (double) targetH / source.getHeight() - xey;
}else {
sx = (double) targetW / source.getWidth() - xex;
sy = (double) targetH / source.getHeight() -0.0;
System.out.println("sy? ? ? ? "+sy);
}
if (flag && sx > sy) {
sx = sy;
targetW = (int) (sx * source.getWidth());
}else if(flag && sx <= sy){
sy = sx;
targetH = (int) (sy * source.getHeight());
}
if (type == BufferedImage.TYPE_CUSTOM) {// handmade
? ? ? ? ? ? ColorModel cm = source.getColorModel();
WritableRaster raster = cm.createCompatibleWritableRaster(targetW, targetH);
boolean alphaPremultiplied = cm.isAlphaPremultiplied();
target =new BufferedImage(cm, raster, alphaPremultiplied,null);
}else {
target =new BufferedImage(targetW, targetH, type);
}
Graphics2D g = target.createGraphics();
g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g.drawRenderedImage(source, AffineTransform.getScaleInstance(sx, sy));
g.dispose();
return target;
}
public static void main(String[] args)throws MalformedURLException, IOException {
DrawingUtils tt =new DrawingUtils();
//設(shè)置背景圖片
? ? ? ? BufferedImage j = tt.loadImageLocal("本地圖片");? ? ? ? ? ?//E:\\Users\\02.jpg
//設(shè)置小程序二維碼? ,? 二維碼圖片為自動(dòng)生成
? ? ? ? BufferedImage k = tt.loadImageLocal("本地圖片");
//用戶頭像
? ? ? ? BufferedImage f = tt.loadImageLocal("本地圖片");
//設(shè)置商品的圖片
? ? ? ? BufferedImage c = tt.loadImageLocal("本地圖片");
//要顯示的文字
//Object [] obj = {"禰豆子" , "￥1000.00【包郵】"};
//設(shè)置文字的x,y軸
? ? ? ? tt.modifyImageYe(j);
//設(shè)置小程序圖片大小
? ? ? ? BufferedImage bufferedImage =resizeBufferedImage(k,300 ,1200 ,true ,1);
//修改背景圖
//BufferedImage bj =? resizeBufferedImage(c,514 ,800 ,true , 0);
//生成合成圖片
? ? ? ? tt.writeImageLocal("8.png", tt.modifyImagetogeter(bufferedImage, j, DrawingRound.setRadius(f) , c,350,780));
//此處可重復(fù)多次合成多張圖片
//完成后即可上傳對(duì)象存儲(chǔ)
//filedel("C:\\Users\\Waitforyou\\Desktop\\img\\c1.jpg");//完成后刪除本地文件
? ? ? ? System.out.println("success");
}
}
DrawingRound類
生成頭像圓角頭像
package com.example.diandao.weixin.share;
import java.awt.*;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
/**
* @Description
* @auther 葉子
* @create 2019-12-23 18:16
*/
public class DrawingRound {
/**
* 圖片設(shè)置圓角
? ? * @param srcImage 圖片地址
? ? * @param radius
? ? * @param border
? ? * @param padding
? ? * @return
? ? * @throws IOException
*/
? ? public static BufferedImage setRadius(BufferedImage srcImage,int radius,int border,int padding)throws IOException {
int width = srcImage.getWidth();
int height = srcImage.getHeight();
int canvasWidth = width + padding *2;
int canvasHeight = height + padding *2;
BufferedImage image =new BufferedImage(canvasWidth, canvasHeight, BufferedImage.TYPE_INT_ARGB);
Graphics2D gs = image.createGraphics();
gs.setComposite(AlphaComposite.Src);
gs.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
gs.setColor(Color.WHITE);
gs.fill(new RoundRectangle2D.Float(0,0, canvasWidth, canvasHeight, radius, radius));
gs.setComposite(AlphaComposite.SrcAtop);
gs.drawImage(setClip(srcImage, radius), padding, padding,null);
if(border !=0){
gs.setColor(Color.GRAY);
gs.setStroke(new BasicStroke(border));
gs.drawRoundRect(padding, padding, canvasWidth -2 * padding, canvasHeight -2 * padding, radius, radius);
}
gs.dispose();
return image;
}
/**
* 圖片設(shè)置圓角
? ? * @param srcImage
? ? * @return
? ? * @throws IOException
*/
? ? public static BufferedImage setRadius(BufferedImage srcImage)throws IOException{
int radius = (srcImage.getWidth() + srcImage.getHeight()) /1;
return setRadius(srcImage, radius,2,5);
}
/**
* 圖片切圓角
? ? * @param srcImage
? ? * @param radius
? ? * @return
? ? */
? ? public static BufferedImage setClip(BufferedImage srcImage,int radius){
int width = srcImage.getWidth();
int height = srcImage.getHeight();
BufferedImage image =new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D gs = image.createGraphics();
gs.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
gs.setClip(new RoundRectangle2D.Double(0,0, width, height, radius, radius));
gs.drawImage(srcImage,0,0,null);
gs.dispose();
return image;
}
}
