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¹ØÓÚJavaÉú³É±³¾°Í¸Ã÷µÄpngͼƬ
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1. Éú³ÉpngͼƬ
int width = 400;
int height = 300;
// ´´½¨BufferedImage¶ÔÏó
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// »ñÈ¡Graphics2D
Graphics2D g2d = image.createGraphics();
// »Í¼
g2d.setColor(new Color(255,0,0));
g2d.setStroke(new BasicStroke(1));
g2d.draw
//ÊͷŶÔÏó
g2d.dispose();
// ±£´æÎļþ
ImageIO.write(image, "png", new File("c:/test.png"));
int width = 400;
int height = 300;
// ´´½¨BufferedImage¶ÔÏó
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// »ñÈ¡Graphics2D
Graphics2D g2d = image.createGraphics();
// »Í¼
g2d.setColor(new Color(255,0,0));
g2d.setStroke(new BasicStroke(1));
g2d.draw
//ÊͷŶÔÏó
g2d.dispose();
// ±£´æÎļþ
ImageIO.write(image, "png", new File("c:/test.png"));
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2. »æÖưë͸Ã÷ͼÐÎ
int width = 400;
int height = 300;
// ´´½¨BufferedImage¶ÔÏó
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// »ñÈ¡Graphics2D
Graphics2D g2d = image.createGraphics();
// ÉèÖÃ͸Ã÷¶È
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 1.0f)); // 1.0fΪ͸Ã÷¶È £¬Öµ´Ó0-1.0£¬ÒÀ´Î±äµÃ²»Í¸Ã÷
// »Í¼
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// ¹¹ÔìHttpClientµÄʵÀý
HttpClient httpClient = new HttpClient();
HttpClientParams clientPar ......
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String str = "ÖÐ";
String str1 = new String(str.getBytes("gbk"), "ISO8859-1");
String str2 = new String(str1.getBytes("ISO8859-1"), "gbk");
System.out.println(str2); //Êä³ö"ÖÐ" ......