记一次图片转换ZPL格式(ZPL格式是用于斑马打印机)

2024-07-06 23:31| 来源: 网络整理| 查看: 265

由于公司一个地方需要用到图片转换ZPL格式去打印;这里的ZPL格式是打印斑马打印机,这里面有一些小的地方是需要注意的.

由于斑马打印机的型号不一样，设置不一样,外加自身的图片格式(.jpg,.png的不一样),图片的高度和宽度也不一样，就会直接导致打印出来的东西和你理想中的效果不一样，所以这里就需要设置图片的参数和斑马打印机自身的参数等设置。

然后下面贴出来图片转换为ZPL格式的代码,也可以当一个工具类来进行使用。

public class ZPLConveterUtils { private int blackLimit = 380; private int total; private int widthBytes; private boolean compressHex = false; private static Map mapCode = new HashMap(); { mapCode.put(1, "G"); mapCode.put(2, "H"); mapCode.put(3, "I"); mapCode.put(4, "J"); mapCode.put(5, "K"); mapCode.put(6, "L"); mapCode.put(7, "M"); mapCode.put(8, "N"); mapCode.put(9, "O"); mapCode.put(10, "P"); mapCode.put(11, "Q"); mapCode.put(12, "R"); mapCode.put(13, "S"); mapCode.put(14, "T"); mapCode.put(15, "U"); mapCode.put(16, "V"); mapCode.put(17, "W"); mapCode.put(18, "X"); mapCode.put(19, "Y"); mapCode.put(20, "g"); mapCode.put(40, "h"); mapCode.put(60, "i"); mapCode.put(80, "j"); mapCode.put(100, "k"); mapCode.put(120, "l"); mapCode.put(140, "m"); mapCode.put(160, "n"); mapCode.put(180, "o"); mapCode.put(200, "p"); mapCode.put(220, "q"); mapCode.put(240, "r"); mapCode.put(260, "s"); mapCode.put(280, "t"); mapCode.put(300, "u"); mapCode.put(320, "v"); mapCode.put(340, "w"); mapCode.put(360, "x"); mapCode.put(380, "y"); mapCode.put(400, "z"); } public void setCompressHex(boolean compressHex) { this.compressHex = compressHex; } public void setBlacknessLimitPercentage(int percentage) { this.blackLimit = (percentage * 768 / 100); } private String headDoc() { String str = "^XA " + "^FO0,0^GFA," + total + "," + total + "," + widthBytes + ", "; return str; } private String footDoc() { String str = "^FS" + "^XZ"; return str; } /** * Image to zpi string data. * * @param image * @return * @throws IOException */ public String convertfromImg(BufferedImage image) throws IOException { String cuerpo = createBody(image); if (compressHex) { cuerpo = encodeHexAscii(cuerpo,20); } return headDoc() + cuerpo + footDoc(); } /* public static void main(String[] args) throws Exception { resizeImage("image/gavin2019GY-HCK-21099224.jpg","image/cc.png",810,1220); File file = new File("image/cc.png"); BufferedImage orginalImage = ImageIO.read(file); ZPLConveterUtils zpl = new ZPLConveterUtils(); zpl.setCompressHex(true); zpl.setBlacknessLimitPercentage(50); String content = zpl.convertfromImg(orginalImage); JSONObject jsonObject = new JSONObject(); jsonObject.put("str", content); System.out.println(jsonObject); } public static void resizeImage(String srcImgPath, String distImgPath, int width, int height) throws IOException { File srcFile = new File(srcImgPath); Image srcImg = ImageIO.read(srcFile); BufferedImage buffImg = null; buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); buffImg.getGraphics().drawImage( srcImg.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null); ImageIO.write(buffImg, "JPG", new File(distImgPath)); }*/ /** * the BufferedImage to String * * @param orginalImage * @return * @throws IOException */ private String createBody(BufferedImage orginalImage) throws IOException { StringBuffer sb = new StringBuffer(); Graphics2D graphics = orginalImage.createGraphics(); graphics.drawImage(orginalImage, 0, 0, null); int height = orginalImage.getHeight(); int width = orginalImage.getWidth(); // int newWidth = width + 200; int rgb, red, green, blue, index = 0; char auxBinaryChar[] = {'0', '0', '0', '0', '0', '0', '0', '0'}; // widthBytes = width / 16 ; // widthBytes = width % 8 > 0 ? (((int) (width / 8)) + 1) : width / 8; widthBytes = width % 8 > 0 ? (((int) (width / 8)) + 1) : width / 8; this.total = widthBytes * height; for (int h = 0; h < height; h++) { for (int w = 0; w < width; w++) { rgb = orginalImage.getRGB(w, h); red = (rgb >> 16) & 0x000000FF; green = (rgb >> 8) & 0x000000FF; blue = (rgb) & 0x000000FF; char auxChar = '1'; int totalColor = red + green + blue; if (totalColor > blackLimit) { auxChar = '0'; } auxBinaryChar[index] = auxChar; index++; if (index == 8 || w == (width - 1)) { sb.append(fourByteBinary(new String(auxBinaryChar))); auxBinaryChar = new char[]{'0', '0', '0', '0', '0', '0', '0', '0'}; index = 0; } } sb.append("\n"); } return sb.toString(); } /** * @param binaryStr * @return */ private String fourByteBinary(String binaryStr) { // int decimal = Integer.parseInt(binaryStr, 2); int decimal = Integer.parseInt(binaryStr, 2); return decimal > 15 ? Integer.toString(decimal, 16).toUpperCase() : "0" + Integer.toString(decimal, 16).toUpperCase(); } /** * @param code * @return */ private String encodeHexAscii(String code) { int maxlinea = widthBytes * 2; StringBuffer sbCode = new StringBuffer(); StringBuffer sbLinea = new StringBuffer(); String previousLine = null; int counter = 1; char aux = code.charAt(0); boolean firstChar = false; for (int i = 1; i < code.length(); i++) { if (firstChar) { aux = code.charAt(i); firstChar = false; continue; } if (code.charAt(i) == '\n') { if (counter >= maxlinea && aux == '0') { sbLinea.append(","); } else if (counter >= maxlinea && aux == 'F') { sbLinea.append("!"); } else if (counter > 20) { int multi20 = (counter / 20) * 20; int resto20 = (counter % 20); sbLinea.append(mapCode.get(multi20)); if (resto20 != 0) { sbLinea.append(mapCode.get(resto20) + aux); } else { sbLinea.append(aux); } } else { sbLinea.append(mapCode.get(counter) + aux); if (mapCode.get(counter) == null) { } } counter = 1; firstChar = true; if (sbLinea.toString().equals(previousLine)) { sbCode.append(":"); } else { sbCode.append(sbLinea.toString()); } previousLine = sbLinea.toString(); sbLinea.setLength(0); continue; } if (aux == code.charAt(i)) { counter++; } else { if (counter > 20) { int multi20 = (counter / 20) * 20; int resto20 = (counter % 20); sbLinea.append(mapCode.get(multi20)); if (resto20 != 0) { sbLinea.append(mapCode.get(resto20) + aux); } else { sbLinea.append(aux); } } else { sbLinea.append(mapCode.get(counter) + aux); } counter = 1; aux = code.charAt(i); } } return sbCode.toString(); } private String encodeHexAscii(String code,int number) { int maxlinea = widthBytes * 2; StringBuffer sbCode = new StringBuffer(); StringBuffer sbLinea = new StringBuffer(); String previousLine = null; int counter = 1; char aux = code.charAt(0); boolean firstChar = false; for (int i = 1; i < code.length(); i++) { if (firstChar) { aux = code.charAt(i); firstChar = false; continue; } if (code.charAt(i) == '\n') { if (counter >= maxlinea && aux == '0') { sbLinea.append(","); } else if (counter >= maxlinea && aux == 'F') { sbLinea.append("!"); } else if (counter > number) { int multi20 = (counter / number) * number; int resto20 = (counter % number); sbLinea.append(mapCode.get(multi20)); if (resto20 != 0) { sbLinea.append(mapCode.get(resto20) + aux); } else { sbLinea.append(aux); } } else { sbLinea.append(mapCode.get(counter) + aux); if (mapCode.get(counter) == null) { } } counter = 1; firstChar = true; if (sbLinea.toString().equals(previousLine)) { sbCode.append(":"); } else { sbCode.append(sbLinea.toString()); } previousLine = sbLinea.toString(); sbLinea.setLength(0); continue; } if (aux == code.charAt(i)) { counter++; } else { if (counter > number) { int multi20 = (counter / number) * number; int resto20 = (counter % number); sbLinea.append(mapCode.get(multi20)); if (resto20 != 0) { sbLinea.append(mapCode.get(resto20) + aux); } else { sbLinea.append(aux); } } else { sbLinea.append(mapCode.get(counter) + aux); } counter = 1; aux = code.charAt(i); } } return sbCode.toString(); }

注意这里再重复下打印出来的效果不一样；导致的原因有可能:

　1 :　斑马打印机型号问题

　2 : 　斑马打印机的参数设置问题

　 3 : 　图片自身的类型和图片的高度宽度等参数信息的设置

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