一篇頭像裁剪，組合圖片，生成海報的代碼

 1 /**
 2      * 頭像裁剪，組合圖片，生成海報
 3      * @param picUrl
 4      * @param headPic
 5      * @throws Exception
 6      */
 7         public void createPost(String picUrl,String headPic) throws Exception{
 8             int width1 = 130;
 9             URL url1 = new URL(headPic);//背景圖片
10             BufferedImage headPicImg = ImageIO.read(url1);
11             // 透明底的圖片
12              BufferedImage formatAvatarImage = new BufferedImage(width1, width1, BufferedImage.TYPE_INT_RGB);
13 
14             Graphics2D graphics = formatAvatarImage.createGraphics();
15             graphics.setColor(Color.white);    //GREEN:綠色；  紅色：RED;   灰色：GRAY 白色：white
16             graphics.fillRect(0, 0, width1, width1);
17             //把圖片切成一個圓
18              graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
19                 //留一個像素的空白區域，這個很重要，畫圓的時候把這個覆蓋
20              int border =1;
21              //圖片是一個圓型
22              Ellipse2D.Double shape = new Ellipse2D.Double(border, border, width1 - border * 2, width1 - border * 2);
23              //須要保留的區域
24              graphics.setClip(shape);
25              graphics.drawImage(headPicImg, border, border, width1 - border * 2, width1 - border * 2, null);
26              //繪製二維碼
27             HashMap hints = new HashMap();
28             hints.put(EncodeHintType.CHARACTER_SET, "utf-8");    //指定字符編碼爲「utf-8」
29             hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);  //指定二維碼的糾錯等級爲中級
30             hints.put(EncodeHintType.MARGIN, 1);    //設置圖片的邊距
31             BitMatrix bitMatrix = new MultiFormatWriter().encode( "愛你一萬年", BarcodeFormat.QR_CODE, 250, 250, hints);
32             BufferedImage ii = toBufferedImage(bitMatrix);
33             URL url = new URL(picUrl);//背景圖片
34             BufferedImage picUrlImg = ImageIO.read(url);
35 
36             //繪製寬=480，長=640的圖板
37             int width = 750, hight = 1606;
38             BufferedImage image = new BufferedImage(width, hight, BufferedImage.TYPE_INT_RGB);
39             //獲取圖形上下文,graphics想象成一個畫筆
40              graphics = (Graphics2D) image.getGraphics();
41             //消除線條鋸齒
42             graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
43             //對指定的矩形區域填充顏色
44             graphics.setColor(Color.white);    //GREEN:綠色；  紅色：RED;   灰色：GRAY 白色：white
45             graphics.fillRect(0, 0, 750, 1606);
46             //對指定的矩形區域填充顏色
47             graphics.drawImage(picUrlImg,0,0,null);
48             graphics.drawImage(formatAvatarImage,30,1326,null);
49             graphics.drawImage(ii,470,1326,null);
50 
51             Font font=new Font("宋體",Font.BOLD,28);
52             graphics.setFont(font);
53             graphics.setColor(Color.BLACK);
54             graphics.drawString("徐睿", 170, 1386);
55             graphics.drawString("18703652539", 170, 1416);
56              font=new Font("宋體",Font.ITALIC,25);
57             graphics.setFont(font);
58             graphics.setColor(Color.BLACK);
59             graphics.drawString("我是你的專屬客服，您有任何關於", 50, 1496);
60             graphics.drawString("信用卡申請的相關問題可隨時向我", 50, 1536);
61             graphics.drawString("諮詢", 50, 1576);
62 
63             //graphics.setPaintMode();
64             //graphics.translate(400, 600);
65 
66             graphics.dispose();//釋放此圖形的上下文並釋放它所使用的全部系統資源
67             FileOutputStream out = new FileOutputStream("D:\\yy/1.jpeg");
68             ImageIO.write(image, "JPEG", out);
69 
70             out.flush();
71             out.close();
72 
73         }